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2e8cf49e NC |
1 | /* simulator.c -- Interface for the AArch64 simulator. |
2 | ||
88b9d363 | 3 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
2e8cf49e NC |
4 | |
5 | Contributed by Red Hat. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
21 | ||
6df01ab8 MF |
22 | /* This must come before any other includes. */ |
23 | #include "defs.h" | |
24 | ||
2e8cf49e NC |
25 | #include <stdlib.h> |
26 | #include <stdio.h> | |
27 | #include <string.h> | |
28 | #include <sys/types.h> | |
2e8cf49e NC |
29 | #include <math.h> |
30 | #include <time.h> | |
31 | #include <limits.h> | |
32 | ||
2e8cf49e NC |
33 | #include "simulator.h" |
34 | #include "cpustate.h" | |
35 | #include "memory.h" | |
36 | ||
1fef66b0 MF |
37 | #include "sim-signal.h" |
38 | ||
2e8cf49e NC |
39 | #define NO_SP 0 |
40 | #define SP_OK 1 | |
41 | ||
2e8cf49e | 42 | #define TST(_flag) (aarch64_test_CPSR_bit (cpu, _flag)) |
e101a78b NC |
43 | #define IS_SET(_X) (TST (( _X )) ? 1 : 0) |
44 | #define IS_CLEAR(_X) (TST (( _X )) ? 0 : 1) | |
2e8cf49e | 45 | |
ef0d8ffc NC |
46 | /* Space saver macro. */ |
47 | #define INSTR(HIGH, LOW) uimm (aarch64_get_instr (cpu), (HIGH), (LOW)) | |
48 | ||
2e8cf49e NC |
49 | #define HALT_UNALLOC \ |
50 | do \ | |
51 | { \ | |
1a846c62 MF |
52 | TRACE_DISASM (cpu, aarch64_get_PC (cpu)); \ |
53 | TRACE_INSN (cpu, \ | |
54 | "Unallocated instruction detected at sim line %d," \ | |
55 | " exe addr %" PRIx64, \ | |
56 | __LINE__, aarch64_get_PC (cpu)); \ | |
2e8cf49e NC |
57 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu),\ |
58 | sim_stopped, SIM_SIGILL); \ | |
59 | } \ | |
60 | while (0) | |
61 | ||
62 | #define HALT_NYI \ | |
63 | do \ | |
64 | { \ | |
1a846c62 MF |
65 | TRACE_DISASM (cpu, aarch64_get_PC (cpu)); \ |
66 | TRACE_INSN (cpu, \ | |
67 | "Unimplemented instruction detected at sim line %d," \ | |
68 | " exe addr %" PRIx64, \ | |
69 | __LINE__, aarch64_get_PC (cpu)); \ | |
5ab6d79e | 70 | if (! TRACE_ANY_P (cpu)) \ |
6a277579 NC |
71 | sim_io_eprintf (CPU_STATE (cpu), "SIM Error: Unimplemented instruction: %#08x\n", \ |
72 | aarch64_get_instr (cpu)); \ | |
2e8cf49e NC |
73 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu),\ |
74 | sim_stopped, SIM_SIGABRT); \ | |
75 | } \ | |
76 | while (0) | |
77 | ||
78 | #define NYI_assert(HI, LO, EXPECTED) \ | |
79 | do \ | |
80 | { \ | |
ef0d8ffc | 81 | if (INSTR ((HI), (LO)) != (EXPECTED)) \ |
2e8cf49e NC |
82 | HALT_NYI; \ |
83 | } \ | |
84 | while (0) | |
85 | ||
2e8cf49e NC |
86 | /* Helper functions used by expandLogicalImmediate. */ |
87 | ||
88 | /* for i = 1, ... N result<i-1> = 1 other bits are zero */ | |
89 | static inline uint64_t | |
90 | ones (int N) | |
91 | { | |
92 | return (N == 64 ? (uint64_t)-1UL : ((1UL << N) - 1)); | |
93 | } | |
94 | ||
95 | /* result<0> to val<N> */ | |
96 | static inline uint64_t | |
97 | pickbit (uint64_t val, int N) | |
98 | { | |
99 | return pickbits64 (val, N, N); | |
100 | } | |
101 | ||
102 | static uint64_t | |
103 | expand_logical_immediate (uint32_t S, uint32_t R, uint32_t N) | |
104 | { | |
105 | uint64_t mask; | |
106 | uint64_t imm; | |
107 | unsigned simd_size; | |
108 | ||
109 | /* The immediate value is S+1 bits to 1, left rotated by SIMDsize - R | |
110 | (in other words, right rotated by R), then replicated. */ | |
111 | if (N != 0) | |
112 | { | |
113 | simd_size = 64; | |
114 | mask = 0xffffffffffffffffull; | |
115 | } | |
116 | else | |
117 | { | |
118 | switch (S) | |
119 | { | |
120 | case 0x00 ... 0x1f: /* 0xxxxx */ simd_size = 32; break; | |
121 | case 0x20 ... 0x2f: /* 10xxxx */ simd_size = 16; S &= 0xf; break; | |
122 | case 0x30 ... 0x37: /* 110xxx */ simd_size = 8; S &= 0x7; break; | |
123 | case 0x38 ... 0x3b: /* 1110xx */ simd_size = 4; S &= 0x3; break; | |
124 | case 0x3c ... 0x3d: /* 11110x */ simd_size = 2; S &= 0x1; break; | |
125 | default: return 0; | |
126 | } | |
127 | mask = (1ull << simd_size) - 1; | |
128 | /* Top bits are IGNORED. */ | |
129 | R &= simd_size - 1; | |
130 | } | |
131 | ||
132 | /* NOTE: if S = simd_size - 1 we get 0xf..f which is rejected. */ | |
133 | if (S == simd_size - 1) | |
134 | return 0; | |
135 | ||
136 | /* S+1 consecutive bits to 1. */ | |
137 | /* NOTE: S can't be 63 due to detection above. */ | |
138 | imm = (1ull << (S + 1)) - 1; | |
139 | ||
140 | /* Rotate to the left by simd_size - R. */ | |
141 | if (R != 0) | |
142 | imm = ((imm << (simd_size - R)) & mask) | (imm >> R); | |
143 | ||
144 | /* Replicate the value according to SIMD size. */ | |
145 | switch (simd_size) | |
146 | { | |
147 | case 2: imm = (imm << 2) | imm; | |
148 | case 4: imm = (imm << 4) | imm; | |
149 | case 8: imm = (imm << 8) | imm; | |
150 | case 16: imm = (imm << 16) | imm; | |
151 | case 32: imm = (imm << 32) | imm; | |
152 | case 64: break; | |
153 | default: return 0; | |
154 | } | |
155 | ||
156 | return imm; | |
157 | } | |
158 | ||
159 | /* Instr[22,10] encodes N immr and imms. we want a lookup table | |
160 | for each possible combination i.e. 13 bits worth of int entries. */ | |
161 | #define LI_TABLE_SIZE (1 << 13) | |
162 | static uint64_t LITable[LI_TABLE_SIZE]; | |
163 | ||
164 | void | |
165 | aarch64_init_LIT_table (void) | |
166 | { | |
167 | unsigned index; | |
168 | ||
169 | for (index = 0; index < LI_TABLE_SIZE; index++) | |
170 | { | |
171 | uint32_t N = uimm (index, 12, 12); | |
172 | uint32_t immr = uimm (index, 11, 6); | |
173 | uint32_t imms = uimm (index, 5, 0); | |
174 | ||
175 | LITable [index] = expand_logical_immediate (imms, immr, N); | |
176 | } | |
177 | } | |
178 | ||
179 | static void | |
180 | dexNotify (sim_cpu *cpu) | |
181 | { | |
182 | /* instr[14,0] == type : 0 ==> method entry, 1 ==> method reentry | |
183 | 2 ==> exit Java, 3 ==> start next bytecode. */ | |
ef0d8ffc | 184 | uint32_t type = INSTR (14, 0); |
2e8cf49e NC |
185 | |
186 | TRACE_EVENTS (cpu, "Notify Insn encountered, type = 0x%x", type); | |
187 | ||
188 | switch (type) | |
189 | { | |
190 | case 0: | |
191 | /* aarch64_notifyMethodEntry (aarch64_get_reg_u64 (cpu, R23, 0), | |
192 | aarch64_get_reg_u64 (cpu, R22, 0)); */ | |
193 | break; | |
194 | case 1: | |
195 | /* aarch64_notifyMethodReentry (aarch64_get_reg_u64 (cpu, R23, 0), | |
196 | aarch64_get_reg_u64 (cpu, R22, 0)); */ | |
197 | break; | |
198 | case 2: | |
199 | /* aarch64_notifyMethodExit (); */ | |
200 | break; | |
201 | case 3: | |
202 | /* aarch64_notifyBCStart (aarch64_get_reg_u64 (cpu, R23, 0), | |
203 | aarch64_get_reg_u64 (cpu, R22, 0)); */ | |
204 | break; | |
205 | } | |
206 | } | |
207 | ||
208 | /* secondary decode within top level groups */ | |
209 | ||
210 | static void | |
211 | dexPseudo (sim_cpu *cpu) | |
212 | { | |
213 | /* assert instr[28,27] = 00 | |
214 | ||
215 | We provide 2 pseudo instructions: | |
216 | ||
217 | HALT stops execution of the simulator causing an immediate | |
218 | return to the x86 code which entered it. | |
219 | ||
220 | CALLOUT initiates recursive entry into x86 code. A register | |
221 | argument holds the address of the x86 routine. Immediate | |
222 | values in the instruction identify the number of general | |
223 | purpose and floating point register arguments to be passed | |
224 | and the type of any value to be returned. */ | |
225 | ||
226 | uint32_t PSEUDO_HALT = 0xE0000000U; | |
227 | uint32_t PSEUDO_CALLOUT = 0x00018000U; | |
228 | uint32_t PSEUDO_CALLOUTR = 0x00018001U; | |
229 | uint32_t PSEUDO_NOTIFY = 0x00014000U; | |
230 | uint32_t dispatch; | |
231 | ||
232 | if (aarch64_get_instr (cpu) == PSEUDO_HALT) | |
233 | { | |
234 | TRACE_EVENTS (cpu, " Pseudo Halt Instruction"); | |
235 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
236 | sim_stopped, SIM_SIGTRAP); | |
237 | } | |
238 | ||
ef0d8ffc | 239 | dispatch = INSTR (31, 15); |
2e8cf49e NC |
240 | |
241 | /* We do not handle callouts at the moment. */ | |
242 | if (dispatch == PSEUDO_CALLOUT || dispatch == PSEUDO_CALLOUTR) | |
243 | { | |
244 | TRACE_EVENTS (cpu, " Callout"); | |
245 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
246 | sim_stopped, SIM_SIGABRT); | |
247 | } | |
248 | ||
249 | else if (dispatch == PSEUDO_NOTIFY) | |
250 | dexNotify (cpu); | |
251 | ||
252 | else | |
253 | HALT_UNALLOC; | |
254 | } | |
255 | ||
256 | /* Load-store single register (unscaled offset) | |
257 | These instructions employ a base register plus an unscaled signed | |
258 | 9 bit offset. | |
259 | ||
260 | N.B. the base register (source) can be Xn or SP. all other | |
261 | registers may not be SP. */ | |
262 | ||
263 | /* 32 bit load 32 bit unscaled signed 9 bit. */ | |
264 | static void | |
265 | ldur32 (sim_cpu *cpu, int32_t offset) | |
266 | { | |
ef0d8ffc NC |
267 | unsigned rn = INSTR (9, 5); |
268 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 269 | |
2cdad34c | 270 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
271 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u32 |
272 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
273 | + offset)); | |
274 | } | |
275 | ||
276 | /* 64 bit load 64 bit unscaled signed 9 bit. */ | |
277 | static void | |
278 | ldur64 (sim_cpu *cpu, int32_t offset) | |
279 | { | |
ef0d8ffc NC |
280 | unsigned rn = INSTR (9, 5); |
281 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 282 | |
2cdad34c | 283 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
284 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u64 |
285 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
286 | + offset)); | |
287 | } | |
288 | ||
289 | /* 32 bit load zero-extended byte unscaled signed 9 bit. */ | |
290 | static void | |
291 | ldurb32 (sim_cpu *cpu, int32_t offset) | |
292 | { | |
ef0d8ffc NC |
293 | unsigned rn = INSTR (9, 5); |
294 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 295 | |
2cdad34c | 296 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
297 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u8 |
298 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
299 | + offset)); | |
300 | } | |
301 | ||
302 | /* 32 bit load sign-extended byte unscaled signed 9 bit. */ | |
303 | static void | |
304 | ldursb32 (sim_cpu *cpu, int32_t offset) | |
305 | { | |
ef0d8ffc NC |
306 | unsigned rn = INSTR (9, 5); |
307 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 308 | |
2cdad34c | 309 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
310 | aarch64_set_reg_u64 (cpu, rt, NO_SP, (uint32_t) aarch64_get_mem_s8 |
311 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
312 | + offset)); | |
313 | } | |
314 | ||
315 | /* 64 bit load sign-extended byte unscaled signed 9 bit. */ | |
316 | static void | |
317 | ldursb64 (sim_cpu *cpu, int32_t offset) | |
318 | { | |
ef0d8ffc NC |
319 | unsigned rn = INSTR (9, 5); |
320 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 321 | |
2cdad34c | 322 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
323 | aarch64_set_reg_s64 (cpu, rt, NO_SP, aarch64_get_mem_s8 |
324 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
325 | + offset)); | |
326 | } | |
327 | ||
328 | /* 32 bit load zero-extended short unscaled signed 9 bit */ | |
329 | static void | |
330 | ldurh32 (sim_cpu *cpu, int32_t offset) | |
331 | { | |
ef0d8ffc NC |
332 | unsigned rn = INSTR (9, 5); |
333 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 334 | |
2cdad34c | 335 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
336 | aarch64_set_reg_u64 (cpu, rd, NO_SP, aarch64_get_mem_u16 |
337 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
338 | + offset)); | |
339 | } | |
340 | ||
341 | /* 32 bit load sign-extended short unscaled signed 9 bit */ | |
342 | static void | |
343 | ldursh32 (sim_cpu *cpu, int32_t offset) | |
344 | { | |
ef0d8ffc NC |
345 | unsigned rn = INSTR (9, 5); |
346 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 347 | |
2cdad34c | 348 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
349 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (uint32_t) aarch64_get_mem_s16 |
350 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
351 | + offset)); | |
352 | } | |
353 | ||
354 | /* 64 bit load sign-extended short unscaled signed 9 bit */ | |
355 | static void | |
356 | ldursh64 (sim_cpu *cpu, int32_t offset) | |
357 | { | |
ef0d8ffc NC |
358 | unsigned rn = INSTR (9, 5); |
359 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 360 | |
2cdad34c | 361 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
362 | aarch64_set_reg_s64 (cpu, rt, NO_SP, aarch64_get_mem_s16 |
363 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
364 | + offset)); | |
365 | } | |
366 | ||
367 | /* 64 bit load sign-extended word unscaled signed 9 bit */ | |
368 | static void | |
369 | ldursw (sim_cpu *cpu, int32_t offset) | |
370 | { | |
ef0d8ffc NC |
371 | unsigned rn = INSTR (9, 5); |
372 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 373 | |
2cdad34c | 374 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
375 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (uint32_t) aarch64_get_mem_s32 |
376 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
377 | + offset)); | |
378 | } | |
379 | ||
380 | /* N.B. with stores the value in source is written to the address | |
381 | identified by source2 modified by offset. */ | |
382 | ||
383 | /* 32 bit store 32 bit unscaled signed 9 bit. */ | |
384 | static void | |
385 | stur32 (sim_cpu *cpu, int32_t offset) | |
386 | { | |
ef0d8ffc NC |
387 | unsigned rn = INSTR (9, 5); |
388 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 389 | |
2cdad34c | 390 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
391 | aarch64_set_mem_u32 (cpu, |
392 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset, | |
393 | aarch64_get_reg_u32 (cpu, rd, NO_SP)); | |
394 | } | |
395 | ||
396 | /* 64 bit store 64 bit unscaled signed 9 bit */ | |
397 | static void | |
398 | stur64 (sim_cpu *cpu, int32_t offset) | |
399 | { | |
ef0d8ffc NC |
400 | unsigned rn = INSTR (9, 5); |
401 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 402 | |
2cdad34c | 403 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
404 | aarch64_set_mem_u64 (cpu, |
405 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset, | |
406 | aarch64_get_reg_u64 (cpu, rd, NO_SP)); | |
407 | } | |
408 | ||
409 | /* 32 bit store byte unscaled signed 9 bit */ | |
410 | static void | |
411 | sturb (sim_cpu *cpu, int32_t offset) | |
412 | { | |
ef0d8ffc NC |
413 | unsigned rn = INSTR (9, 5); |
414 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 415 | |
2cdad34c | 416 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
417 | aarch64_set_mem_u8 (cpu, |
418 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset, | |
419 | aarch64_get_reg_u8 (cpu, rd, NO_SP)); | |
420 | } | |
421 | ||
422 | /* 32 bit store short unscaled signed 9 bit */ | |
423 | static void | |
424 | sturh (sim_cpu *cpu, int32_t offset) | |
425 | { | |
ef0d8ffc NC |
426 | unsigned rn = INSTR (9, 5); |
427 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 428 | |
2cdad34c | 429 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
430 | aarch64_set_mem_u16 (cpu, |
431 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset, | |
432 | aarch64_get_reg_u16 (cpu, rd, NO_SP)); | |
433 | } | |
434 | ||
435 | /* Load single register pc-relative label | |
436 | Offset is a signed 19 bit immediate count in words | |
437 | rt may not be SP. */ | |
438 | ||
439 | /* 32 bit pc-relative load */ | |
440 | static void | |
441 | ldr32_pcrel (sim_cpu *cpu, int32_t offset) | |
442 | { | |
ef0d8ffc | 443 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 444 | |
2cdad34c | 445 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
446 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
447 | aarch64_get_mem_u32 | |
448 | (cpu, aarch64_get_PC (cpu) + offset * 4)); | |
449 | } | |
450 | ||
451 | /* 64 bit pc-relative load */ | |
452 | static void | |
453 | ldr_pcrel (sim_cpu *cpu, int32_t offset) | |
454 | { | |
ef0d8ffc | 455 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 456 | |
2cdad34c | 457 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
458 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
459 | aarch64_get_mem_u64 | |
460 | (cpu, aarch64_get_PC (cpu) + offset * 4)); | |
461 | } | |
462 | ||
463 | /* sign extended 32 bit pc-relative load */ | |
464 | static void | |
465 | ldrsw_pcrel (sim_cpu *cpu, int32_t offset) | |
466 | { | |
ef0d8ffc | 467 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 468 | |
2cdad34c | 469 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
470 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
471 | aarch64_get_mem_s32 | |
472 | (cpu, aarch64_get_PC (cpu) + offset * 4)); | |
473 | } | |
474 | ||
475 | /* float pc-relative load */ | |
476 | static void | |
477 | fldrs_pcrel (sim_cpu *cpu, int32_t offset) | |
478 | { | |
ef0d8ffc | 479 | unsigned int rd = INSTR (4, 0); |
2e8cf49e | 480 | |
2cdad34c | 481 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
482 | aarch64_set_vec_u32 (cpu, rd, 0, |
483 | aarch64_get_mem_u32 | |
484 | (cpu, aarch64_get_PC (cpu) + offset * 4)); | |
2e8cf49e NC |
485 | } |
486 | ||
487 | /* double pc-relative load */ | |
488 | static void | |
489 | fldrd_pcrel (sim_cpu *cpu, int32_t offset) | |
490 | { | |
ef0d8ffc | 491 | unsigned int st = INSTR (4, 0); |
2e8cf49e | 492 | |
2cdad34c | 493 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
494 | aarch64_set_vec_u64 (cpu, st, 0, |
495 | aarch64_get_mem_u64 | |
496 | (cpu, aarch64_get_PC (cpu) + offset * 4)); | |
2e8cf49e NC |
497 | } |
498 | ||
499 | /* long double pc-relative load. */ | |
500 | static void | |
501 | fldrq_pcrel (sim_cpu *cpu, int32_t offset) | |
502 | { | |
ef0d8ffc | 503 | unsigned int st = INSTR (4, 0); |
2e8cf49e NC |
504 | uint64_t addr = aarch64_get_PC (cpu) + offset * 4; |
505 | FRegister a; | |
506 | ||
2cdad34c | 507 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
508 | aarch64_get_mem_long_double (cpu, addr, & a); |
509 | aarch64_set_FP_long_double (cpu, st, a); | |
510 | } | |
511 | ||
512 | /* This can be used to scale an offset by applying | |
513 | the requisite shift. the second argument is either | |
514 | 16, 32 or 64. */ | |
515 | ||
516 | #define SCALE(_offset, _elementSize) \ | |
517 | ((_offset) << ScaleShift ## _elementSize) | |
518 | ||
519 | /* This can be used to optionally scale a register derived offset | |
520 | by applying the requisite shift as indicated by the Scaling | |
7517e550 | 521 | argument. The second argument is either Byte, Short, Word |
2e8cf49e NC |
522 | or Long. The third argument is either Scaled or Unscaled. |
523 | N.B. when _Scaling is Scaled the shift gets ANDed with | |
524 | all 1s while when it is Unscaled it gets ANDed with 0. */ | |
525 | ||
526 | #define OPT_SCALE(_offset, _elementType, _Scaling) \ | |
527 | ((_offset) << (_Scaling ? ScaleShift ## _elementType : 0)) | |
528 | ||
529 | /* This can be used to zero or sign extend a 32 bit register derived | |
530 | value to a 64 bit value. the first argument must be the value as | |
531 | a uint32_t and the second must be either UXTW or SXTW. The result | |
532 | is returned as an int64_t. */ | |
533 | ||
534 | static inline int64_t | |
535 | extend (uint32_t value, Extension extension) | |
536 | { | |
537 | union | |
538 | { | |
539 | uint32_t u; | |
540 | int32_t n; | |
541 | } x; | |
542 | ||
543 | /* A branchless variant of this ought to be possible. */ | |
544 | if (extension == UXTW || extension == NoExtension) | |
545 | return value; | |
546 | ||
547 | x.u = value; | |
548 | return x.n; | |
549 | } | |
550 | ||
551 | /* Scalar Floating Point | |
552 | ||
553 | FP load/store single register (4 addressing modes) | |
554 | ||
555 | N.B. the base register (source) can be the stack pointer. | |
556 | The secondary source register (source2) can only be an Xn register. */ | |
557 | ||
558 | /* Load 32 bit unscaled signed 9 bit with pre- or post-writeback. */ | |
559 | static void | |
560 | fldrs_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
561 | { | |
ef0d8ffc NC |
562 | unsigned rn = INSTR (9, 5); |
563 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
564 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
565 | ||
566 | if (wb != Post) | |
567 | address += offset; | |
568 | ||
2cdad34c | 569 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b | 570 | aarch64_set_vec_u32 (cpu, st, 0, aarch64_get_mem_u32 (cpu, address)); |
2e8cf49e NC |
571 | if (wb == Post) |
572 | address += offset; | |
573 | ||
574 | if (wb != NoWriteBack) | |
575 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
576 | } | |
577 | ||
5ab6d79e NC |
578 | /* Load 8 bit with unsigned 12 bit offset. */ |
579 | static void | |
580 | fldrb_abs (sim_cpu *cpu, uint32_t offset) | |
581 | { | |
ef0d8ffc NC |
582 | unsigned rd = INSTR (4, 0); |
583 | unsigned rn = INSTR (9, 5); | |
5ab6d79e NC |
584 | uint64_t addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset; |
585 | ||
2cdad34c | 586 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
587 | aarch64_set_vec_u8 (cpu, rd, 0, aarch64_get_mem_u32 (cpu, addr)); |
588 | } | |
589 | ||
590 | /* Load 16 bit scaled unsigned 12 bit. */ | |
591 | static void | |
592 | fldrh_abs (sim_cpu *cpu, uint32_t offset) | |
593 | { | |
ef0d8ffc NC |
594 | unsigned rd = INSTR (4, 0); |
595 | unsigned rn = INSTR (9, 5); | |
5ab6d79e NC |
596 | uint64_t addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 16); |
597 | ||
2cdad34c | 598 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
599 | aarch64_set_vec_u16 (cpu, rd, 0, aarch64_get_mem_u16 (cpu, addr)); |
600 | } | |
601 | ||
2e8cf49e NC |
602 | /* Load 32 bit scaled unsigned 12 bit. */ |
603 | static void | |
604 | fldrs_abs (sim_cpu *cpu, uint32_t offset) | |
605 | { | |
ef0d8ffc NC |
606 | unsigned rd = INSTR (4, 0); |
607 | unsigned rn = INSTR (9, 5); | |
5ab6d79e | 608 | uint64_t addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 32); |
2e8cf49e | 609 | |
2cdad34c | 610 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
611 | aarch64_set_vec_u32 (cpu, rd, 0, aarch64_get_mem_u32 (cpu, addr)); |
612 | } | |
613 | ||
614 | /* Load 64 bit scaled unsigned 12 bit. */ | |
615 | static void | |
616 | fldrd_abs (sim_cpu *cpu, uint32_t offset) | |
617 | { | |
ef0d8ffc NC |
618 | unsigned rd = INSTR (4, 0); |
619 | unsigned rn = INSTR (9, 5); | |
5ab6d79e NC |
620 | uint64_t addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 64); |
621 | ||
2cdad34c | 622 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
623 | aarch64_set_vec_u64 (cpu, rd, 0, aarch64_get_mem_u64 (cpu, addr)); |
624 | } | |
625 | ||
626 | /* Load 128 bit scaled unsigned 12 bit. */ | |
627 | static void | |
628 | fldrq_abs (sim_cpu *cpu, uint32_t offset) | |
629 | { | |
ef0d8ffc NC |
630 | unsigned rd = INSTR (4, 0); |
631 | unsigned rn = INSTR (9, 5); | |
5ab6d79e NC |
632 | uint64_t addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 128); |
633 | ||
2cdad34c | 634 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
635 | aarch64_set_vec_u64 (cpu, rd, 0, aarch64_get_mem_u64 (cpu, addr)); |
636 | aarch64_set_vec_u64 (cpu, rd, 1, aarch64_get_mem_u64 (cpu, addr + 8)); | |
2e8cf49e NC |
637 | } |
638 | ||
639 | /* Load 32 bit scaled or unscaled zero- or sign-extended | |
640 | 32-bit register offset. */ | |
641 | static void | |
642 | fldrs_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
643 | { | |
ef0d8ffc NC |
644 | unsigned rm = INSTR (20, 16); |
645 | unsigned rn = INSTR (9, 5); | |
646 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
647 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
648 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
649 | uint64_t displacement = OPT_SCALE (extended, 32, scaling); | |
650 | ||
2cdad34c | 651 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
652 | aarch64_set_vec_u32 (cpu, st, 0, aarch64_get_mem_u32 |
653 | (cpu, address + displacement)); | |
2e8cf49e NC |
654 | } |
655 | ||
656 | /* Load 64 bit unscaled signed 9 bit with pre- or post-writeback. */ | |
657 | static void | |
658 | fldrd_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
659 | { | |
ef0d8ffc NC |
660 | unsigned rn = INSTR (9, 5); |
661 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
662 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
663 | ||
664 | if (wb != Post) | |
665 | address += offset; | |
666 | ||
2cdad34c | 667 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b | 668 | aarch64_set_vec_u64 (cpu, st, 0, aarch64_get_mem_u64 (cpu, address)); |
2e8cf49e NC |
669 | |
670 | if (wb == Post) | |
671 | address += offset; | |
672 | ||
673 | if (wb != NoWriteBack) | |
674 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
675 | } | |
676 | ||
2e8cf49e NC |
677 | /* Load 64 bit scaled or unscaled zero- or sign-extended 32-bit register offset. */ |
678 | static void | |
679 | fldrd_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
680 | { | |
ef0d8ffc | 681 | unsigned rm = INSTR (20, 16); |
2e8cf49e NC |
682 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); |
683 | uint64_t displacement = OPT_SCALE (extended, 64, scaling); | |
684 | ||
685 | fldrd_wb (cpu, displacement, NoWriteBack); | |
686 | } | |
687 | ||
688 | /* Load 128 bit unscaled signed 9 bit with pre- or post-writeback. */ | |
689 | static void | |
690 | fldrq_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
691 | { | |
692 | FRegister a; | |
ef0d8ffc NC |
693 | unsigned rn = INSTR (9, 5); |
694 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
695 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
696 | ||
697 | if (wb != Post) | |
698 | address += offset; | |
699 | ||
2cdad34c | 700 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
701 | aarch64_get_mem_long_double (cpu, address, & a); |
702 | aarch64_set_FP_long_double (cpu, st, a); | |
703 | ||
704 | if (wb == Post) | |
705 | address += offset; | |
706 | ||
707 | if (wb != NoWriteBack) | |
708 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
709 | } | |
710 | ||
2e8cf49e NC |
711 | /* Load 128 bit scaled or unscaled zero- or sign-extended 32-bit register offset */ |
712 | static void | |
713 | fldrq_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
714 | { | |
ef0d8ffc | 715 | unsigned rm = INSTR (20, 16); |
2e8cf49e NC |
716 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); |
717 | uint64_t displacement = OPT_SCALE (extended, 128, scaling); | |
718 | ||
719 | fldrq_wb (cpu, displacement, NoWriteBack); | |
720 | } | |
721 | ||
722 | /* Memory Access | |
723 | ||
724 | load-store single register | |
725 | There are four addressing modes available here which all employ a | |
726 | 64 bit source (base) register. | |
727 | ||
728 | N.B. the base register (source) can be the stack pointer. | |
729 | The secondary source register (source2)can only be an Xn register. | |
730 | ||
731 | Scaled, 12-bit, unsigned immediate offset, without pre- and | |
732 | post-index options. | |
733 | Unscaled, 9-bit, signed immediate offset with pre- or post-index | |
734 | writeback. | |
735 | scaled or unscaled 64-bit register offset. | |
736 | scaled or unscaled 32-bit extended register offset. | |
737 | ||
738 | All offsets are assumed to be raw from the decode i.e. the | |
739 | simulator is expected to adjust scaled offsets based on the | |
740 | accessed data size with register or extended register offset | |
741 | versions the same applies except that in the latter case the | |
742 | operation may also require a sign extend. | |
743 | ||
744 | A separate method is provided for each possible addressing mode. */ | |
745 | ||
746 | /* 32 bit load 32 bit scaled unsigned 12 bit */ | |
747 | static void | |
748 | ldr32_abs (sim_cpu *cpu, uint32_t offset) | |
749 | { | |
ef0d8ffc NC |
750 | unsigned rn = INSTR (9, 5); |
751 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 752 | |
2cdad34c | 753 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
754 | /* The target register may not be SP but the source may be. */ |
755 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u32 | |
756 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
757 | + SCALE (offset, 32))); | |
758 | } | |
759 | ||
760 | /* 32 bit load 32 bit unscaled signed 9 bit with pre- or post-writeback. */ | |
761 | static void | |
762 | ldr32_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
763 | { | |
ef0d8ffc NC |
764 | unsigned rn = INSTR (9, 5); |
765 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
766 | uint64_t address; |
767 | ||
768 | if (rn == rt && wb != NoWriteBack) | |
769 | HALT_UNALLOC; | |
770 | ||
771 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
772 | ||
773 | if (wb != Post) | |
774 | address += offset; | |
775 | ||
2cdad34c | 776 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
777 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u32 (cpu, address)); |
778 | ||
779 | if (wb == Post) | |
780 | address += offset; | |
781 | ||
782 | if (wb != NoWriteBack) | |
783 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
784 | } | |
785 | ||
786 | /* 32 bit load 32 bit scaled or unscaled | |
787 | zero- or sign-extended 32-bit register offset */ | |
788 | static void | |
789 | ldr32_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
790 | { | |
ef0d8ffc NC |
791 | unsigned rm = INSTR (20, 16); |
792 | unsigned rn = INSTR (9, 5); | |
793 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
794 | /* rn may reference SP, rm and rt must reference ZR */ |
795 | ||
796 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
797 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
798 | uint64_t displacement = OPT_SCALE (extended, 32, scaling); | |
799 | ||
2cdad34c | 800 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
801 | aarch64_set_reg_u64 (cpu, rt, NO_SP, |
802 | aarch64_get_mem_u32 (cpu, address + displacement)); | |
803 | } | |
804 | ||
805 | /* 64 bit load 64 bit scaled unsigned 12 bit */ | |
806 | static void | |
807 | ldr_abs (sim_cpu *cpu, uint32_t offset) | |
808 | { | |
ef0d8ffc NC |
809 | unsigned rn = INSTR (9, 5); |
810 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 811 | |
2cdad34c | 812 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
813 | /* The target register may not be SP but the source may be. */ |
814 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u64 | |
815 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
816 | + SCALE (offset, 64))); | |
817 | } | |
818 | ||
819 | /* 64 bit load 64 bit unscaled signed 9 bit with pre- or post-writeback. */ | |
820 | static void | |
821 | ldr_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
822 | { | |
ef0d8ffc NC |
823 | unsigned rn = INSTR (9, 5); |
824 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
825 | uint64_t address; |
826 | ||
827 | if (rn == rt && wb != NoWriteBack) | |
828 | HALT_UNALLOC; | |
829 | ||
830 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
831 | ||
832 | if (wb != Post) | |
833 | address += offset; | |
834 | ||
2cdad34c | 835 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
836 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u64 (cpu, address)); |
837 | ||
838 | if (wb == Post) | |
839 | address += offset; | |
840 | ||
841 | if (wb != NoWriteBack) | |
842 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
843 | } | |
844 | ||
845 | /* 64 bit load 64 bit scaled or unscaled zero- | |
846 | or sign-extended 32-bit register offset. */ | |
847 | static void | |
848 | ldr_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
849 | { | |
ef0d8ffc NC |
850 | unsigned rm = INSTR (20, 16); |
851 | unsigned rn = INSTR (9, 5); | |
852 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
853 | /* rn may reference SP, rm and rt must reference ZR */ |
854 | ||
855 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
856 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
857 | uint64_t displacement = OPT_SCALE (extended, 64, scaling); | |
858 | ||
2cdad34c | 859 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
860 | aarch64_set_reg_u64 (cpu, rt, NO_SP, |
861 | aarch64_get_mem_u64 (cpu, address + displacement)); | |
862 | } | |
863 | ||
864 | /* 32 bit load zero-extended byte scaled unsigned 12 bit. */ | |
865 | static void | |
866 | ldrb32_abs (sim_cpu *cpu, uint32_t offset) | |
867 | { | |
ef0d8ffc NC |
868 | unsigned rn = INSTR (9, 5); |
869 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 870 | |
2cdad34c | 871 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
872 | /* The target register may not be SP but the source may be |
873 | there is no scaling required for a byte load. */ | |
874 | aarch64_set_reg_u64 (cpu, rt, NO_SP, | |
875 | aarch64_get_mem_u8 | |
876 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset)); | |
877 | } | |
878 | ||
879 | /* 32 bit load zero-extended byte unscaled signed 9 bit with pre- or post-writeback. */ | |
880 | static void | |
881 | ldrb32_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
882 | { | |
ef0d8ffc NC |
883 | unsigned rn = INSTR (9, 5); |
884 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
885 | uint64_t address; |
886 | ||
887 | if (rn == rt && wb != NoWriteBack) | |
888 | HALT_UNALLOC; | |
889 | ||
890 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
891 | ||
892 | if (wb != Post) | |
893 | address += offset; | |
894 | ||
2cdad34c | 895 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
896 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u8 (cpu, address)); |
897 | ||
898 | if (wb == Post) | |
899 | address += offset; | |
900 | ||
901 | if (wb != NoWriteBack) | |
902 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
903 | } | |
904 | ||
905 | /* 32 bit load zero-extended byte scaled or unscaled zero- | |
906 | or sign-extended 32-bit register offset. */ | |
907 | static void | |
908 | ldrb32_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
909 | { | |
ef0d8ffc NC |
910 | unsigned rm = INSTR (20, 16); |
911 | unsigned rn = INSTR (9, 5); | |
912 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
913 | /* rn may reference SP, rm and rt must reference ZR */ |
914 | ||
915 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
916 | int64_t displacement = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
917 | extension); | |
918 | ||
2cdad34c | 919 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
920 | /* There is no scaling required for a byte load. */ |
921 | aarch64_set_reg_u64 (cpu, rt, NO_SP, | |
922 | aarch64_get_mem_u8 (cpu, address + displacement)); | |
923 | } | |
924 | ||
925 | /* 64 bit load sign-extended byte unscaled signed 9 bit | |
926 | with pre- or post-writeback. */ | |
927 | static void | |
928 | ldrsb_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
929 | { | |
ef0d8ffc NC |
930 | unsigned rn = INSTR (9, 5); |
931 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 932 | uint64_t address; |
7517e550 | 933 | int64_t val; |
2e8cf49e NC |
934 | |
935 | if (rn == rt && wb != NoWriteBack) | |
936 | HALT_UNALLOC; | |
937 | ||
938 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
939 | ||
940 | if (wb != Post) | |
941 | address += offset; | |
942 | ||
2cdad34c | 943 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
944 | val = aarch64_get_mem_s8 (cpu, address); |
945 | aarch64_set_reg_s64 (cpu, rt, NO_SP, val); | |
2e8cf49e NC |
946 | |
947 | if (wb == Post) | |
948 | address += offset; | |
949 | ||
950 | if (wb != NoWriteBack) | |
951 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
952 | } | |
953 | ||
954 | /* 64 bit load sign-extended byte scaled unsigned 12 bit. */ | |
955 | static void | |
956 | ldrsb_abs (sim_cpu *cpu, uint32_t offset) | |
957 | { | |
958 | ldrsb_wb (cpu, offset, NoWriteBack); | |
959 | } | |
960 | ||
961 | /* 64 bit load sign-extended byte scaled or unscaled zero- | |
962 | or sign-extended 32-bit register offset. */ | |
963 | static void | |
964 | ldrsb_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
965 | { | |
ef0d8ffc NC |
966 | unsigned rm = INSTR (20, 16); |
967 | unsigned rn = INSTR (9, 5); | |
968 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
969 | /* rn may reference SP, rm and rt must reference ZR */ |
970 | ||
971 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
972 | int64_t displacement = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
973 | extension); | |
2cdad34c | 974 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e | 975 | /* There is no scaling required for a byte load. */ |
7517e550 | 976 | aarch64_set_reg_s64 (cpu, rt, NO_SP, |
2e8cf49e NC |
977 | aarch64_get_mem_s8 (cpu, address + displacement)); |
978 | } | |
979 | ||
980 | /* 32 bit load zero-extended short scaled unsigned 12 bit. */ | |
981 | static void | |
982 | ldrh32_abs (sim_cpu *cpu, uint32_t offset) | |
983 | { | |
ef0d8ffc NC |
984 | unsigned rn = INSTR (9, 5); |
985 | unsigned rt = INSTR (4, 0); | |
7517e550 | 986 | uint32_t val; |
2e8cf49e | 987 | |
2cdad34c | 988 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e | 989 | /* The target register may not be SP but the source may be. */ |
7517e550 NC |
990 | val = aarch64_get_mem_u16 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) |
991 | + SCALE (offset, 16)); | |
992 | aarch64_set_reg_u32 (cpu, rt, NO_SP, val); | |
2e8cf49e NC |
993 | } |
994 | ||
995 | /* 32 bit load zero-extended short unscaled signed 9 bit | |
996 | with pre- or post-writeback. */ | |
997 | static void | |
998 | ldrh32_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
999 | { | |
ef0d8ffc NC |
1000 | unsigned rn = INSTR (9, 5); |
1001 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1002 | uint64_t address; |
1003 | ||
1004 | if (rn == rt && wb != NoWriteBack) | |
1005 | HALT_UNALLOC; | |
1006 | ||
1007 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1008 | ||
1009 | if (wb != Post) | |
1010 | address += offset; | |
1011 | ||
2cdad34c | 1012 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 | 1013 | aarch64_set_reg_u32 (cpu, rt, NO_SP, aarch64_get_mem_u16 (cpu, address)); |
2e8cf49e NC |
1014 | |
1015 | if (wb == Post) | |
1016 | address += offset; | |
1017 | ||
1018 | if (wb != NoWriteBack) | |
1019 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1020 | } | |
1021 | ||
1022 | /* 32 bit load zero-extended short scaled or unscaled zero- | |
1023 | or sign-extended 32-bit register offset. */ | |
1024 | static void | |
1025 | ldrh32_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1026 | { | |
ef0d8ffc NC |
1027 | unsigned rm = INSTR (20, 16); |
1028 | unsigned rn = INSTR (9, 5); | |
1029 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1030 | /* rn may reference SP, rm and rt must reference ZR */ |
1031 | ||
1032 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1033 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
1034 | uint64_t displacement = OPT_SCALE (extended, 16, scaling); | |
1035 | ||
2cdad34c | 1036 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 | 1037 | aarch64_set_reg_u32 (cpu, rt, NO_SP, |
2e8cf49e NC |
1038 | aarch64_get_mem_u16 (cpu, address + displacement)); |
1039 | } | |
1040 | ||
1041 | /* 32 bit load sign-extended short scaled unsigned 12 bit. */ | |
1042 | static void | |
1043 | ldrsh32_abs (sim_cpu *cpu, uint32_t offset) | |
1044 | { | |
ef0d8ffc NC |
1045 | unsigned rn = INSTR (9, 5); |
1046 | unsigned rt = INSTR (4, 0); | |
7517e550 | 1047 | int32_t val; |
2e8cf49e | 1048 | |
2cdad34c | 1049 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e | 1050 | /* The target register may not be SP but the source may be. */ |
7517e550 NC |
1051 | val = aarch64_get_mem_s16 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) |
1052 | + SCALE (offset, 16)); | |
1053 | aarch64_set_reg_s32 (cpu, rt, NO_SP, val); | |
2e8cf49e NC |
1054 | } |
1055 | ||
1056 | /* 32 bit load sign-extended short unscaled signed 9 bit | |
1057 | with pre- or post-writeback. */ | |
1058 | static void | |
1059 | ldrsh32_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1060 | { | |
ef0d8ffc NC |
1061 | unsigned rn = INSTR (9, 5); |
1062 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1063 | uint64_t address; |
1064 | ||
1065 | if (rn == rt && wb != NoWriteBack) | |
1066 | HALT_UNALLOC; | |
1067 | ||
1068 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1069 | ||
1070 | if (wb != Post) | |
1071 | address += offset; | |
1072 | ||
2cdad34c | 1073 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
1074 | aarch64_set_reg_s32 (cpu, rt, NO_SP, |
1075 | (int32_t) aarch64_get_mem_s16 (cpu, address)); | |
2e8cf49e NC |
1076 | |
1077 | if (wb == Post) | |
1078 | address += offset; | |
1079 | ||
1080 | if (wb != NoWriteBack) | |
1081 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1082 | } | |
1083 | ||
1084 | /* 32 bit load sign-extended short scaled or unscaled zero- | |
1085 | or sign-extended 32-bit register offset. */ | |
1086 | static void | |
1087 | ldrsh32_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1088 | { | |
ef0d8ffc NC |
1089 | unsigned rm = INSTR (20, 16); |
1090 | unsigned rn = INSTR (9, 5); | |
1091 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1092 | /* rn may reference SP, rm and rt must reference ZR */ |
1093 | ||
1094 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1095 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
1096 | uint64_t displacement = OPT_SCALE (extended, 16, scaling); | |
1097 | ||
2cdad34c | 1098 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
1099 | aarch64_set_reg_s32 (cpu, rt, NO_SP, |
1100 | (int32_t) aarch64_get_mem_s16 | |
2e8cf49e NC |
1101 | (cpu, address + displacement)); |
1102 | } | |
1103 | ||
1104 | /* 64 bit load sign-extended short scaled unsigned 12 bit. */ | |
1105 | static void | |
1106 | ldrsh_abs (sim_cpu *cpu, uint32_t offset) | |
1107 | { | |
ef0d8ffc NC |
1108 | unsigned rn = INSTR (9, 5); |
1109 | unsigned rt = INSTR (4, 0); | |
7517e550 | 1110 | int64_t val; |
2e8cf49e | 1111 | |
2cdad34c | 1112 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e | 1113 | /* The target register may not be SP but the source may be. */ |
7517e550 NC |
1114 | val = aarch64_get_mem_s16 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) |
1115 | + SCALE (offset, 16)); | |
1116 | aarch64_set_reg_s64 (cpu, rt, NO_SP, val); | |
2e8cf49e NC |
1117 | } |
1118 | ||
1119 | /* 64 bit load sign-extended short unscaled signed 9 bit | |
1120 | with pre- or post-writeback. */ | |
1121 | static void | |
1122 | ldrsh64_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1123 | { | |
ef0d8ffc NC |
1124 | unsigned rn = INSTR (9, 5); |
1125 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 1126 | uint64_t address; |
7517e550 | 1127 | int64_t val; |
2e8cf49e NC |
1128 | |
1129 | if (rn == rt && wb != NoWriteBack) | |
1130 | HALT_UNALLOC; | |
1131 | ||
2cdad34c | 1132 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1133 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
1134 | ||
1135 | if (wb != Post) | |
1136 | address += offset; | |
1137 | ||
7517e550 NC |
1138 | val = aarch64_get_mem_s16 (cpu, address); |
1139 | aarch64_set_reg_s64 (cpu, rt, NO_SP, val); | |
2e8cf49e NC |
1140 | |
1141 | if (wb == Post) | |
1142 | address += offset; | |
1143 | ||
1144 | if (wb != NoWriteBack) | |
1145 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1146 | } | |
1147 | ||
1148 | /* 64 bit load sign-extended short scaled or unscaled zero- | |
1149 | or sign-extended 32-bit register offset. */ | |
1150 | static void | |
1151 | ldrsh_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1152 | { | |
ef0d8ffc NC |
1153 | unsigned rm = INSTR (20, 16); |
1154 | unsigned rn = INSTR (9, 5); | |
1155 | unsigned rt = INSTR (4, 0); | |
7517e550 | 1156 | |
2e8cf49e NC |
1157 | /* rn may reference SP, rm and rt must reference ZR */ |
1158 | ||
1159 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1160 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
1161 | uint64_t displacement = OPT_SCALE (extended, 16, scaling); | |
7517e550 | 1162 | int64_t val; |
2e8cf49e | 1163 | |
2cdad34c | 1164 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
1165 | val = aarch64_get_mem_s16 (cpu, address + displacement); |
1166 | aarch64_set_reg_s64 (cpu, rt, NO_SP, val); | |
2e8cf49e NC |
1167 | } |
1168 | ||
1169 | /* 64 bit load sign-extended 32 bit scaled unsigned 12 bit. */ | |
1170 | static void | |
1171 | ldrsw_abs (sim_cpu *cpu, uint32_t offset) | |
1172 | { | |
ef0d8ffc NC |
1173 | unsigned rn = INSTR (9, 5); |
1174 | unsigned rt = INSTR (4, 0); | |
7517e550 | 1175 | int64_t val; |
2e8cf49e | 1176 | |
2cdad34c | 1177 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
1178 | val = aarch64_get_mem_s32 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) |
1179 | + SCALE (offset, 32)); | |
2e8cf49e | 1180 | /* The target register may not be SP but the source may be. */ |
7517e550 | 1181 | return aarch64_set_reg_s64 (cpu, rt, NO_SP, val); |
2e8cf49e NC |
1182 | } |
1183 | ||
1184 | /* 64 bit load sign-extended 32 bit unscaled signed 9 bit | |
1185 | with pre- or post-writeback. */ | |
1186 | static void | |
1187 | ldrsw_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1188 | { | |
ef0d8ffc NC |
1189 | unsigned rn = INSTR (9, 5); |
1190 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1191 | uint64_t address; |
1192 | ||
1193 | if (rn == rt && wb != NoWriteBack) | |
1194 | HALT_UNALLOC; | |
1195 | ||
1196 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1197 | ||
1198 | if (wb != Post) | |
1199 | address += offset; | |
1200 | ||
2cdad34c | 1201 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1202 | aarch64_set_reg_s64 (cpu, rt, NO_SP, aarch64_get_mem_s32 (cpu, address)); |
1203 | ||
1204 | if (wb == Post) | |
1205 | address += offset; | |
1206 | ||
1207 | if (wb != NoWriteBack) | |
1208 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1209 | } | |
1210 | ||
1211 | /* 64 bit load sign-extended 32 bit scaled or unscaled zero- | |
1212 | or sign-extended 32-bit register offset. */ | |
1213 | static void | |
1214 | ldrsw_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1215 | { | |
ef0d8ffc NC |
1216 | unsigned rm = INSTR (20, 16); |
1217 | unsigned rn = INSTR (9, 5); | |
1218 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1219 | /* rn may reference SP, rm and rt must reference ZR */ |
1220 | ||
1221 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1222 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
1223 | uint64_t displacement = OPT_SCALE (extended, 32, scaling); | |
1224 | ||
2cdad34c | 1225 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1226 | aarch64_set_reg_s64 (cpu, rt, NO_SP, |
1227 | aarch64_get_mem_s32 (cpu, address + displacement)); | |
1228 | } | |
1229 | ||
1230 | /* N.B. with stores the value in source is written to the | |
1231 | address identified by source2 modified by source3/offset. */ | |
1232 | ||
1233 | /* 32 bit store scaled unsigned 12 bit. */ | |
1234 | static void | |
1235 | str32_abs (sim_cpu *cpu, uint32_t offset) | |
1236 | { | |
ef0d8ffc NC |
1237 | unsigned rn = INSTR (9, 5); |
1238 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 1239 | |
2cdad34c | 1240 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1241 | /* The target register may not be SP but the source may be. */ |
1242 | aarch64_set_mem_u32 (cpu, (aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
1243 | + SCALE (offset, 32)), | |
1244 | aarch64_get_reg_u32 (cpu, rt, NO_SP)); | |
1245 | } | |
1246 | ||
1247 | /* 32 bit store unscaled signed 9 bit with pre- or post-writeback. */ | |
1248 | static void | |
1249 | str32_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1250 | { | |
ef0d8ffc NC |
1251 | unsigned rn = INSTR (9, 5); |
1252 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1253 | uint64_t address; |
1254 | ||
1255 | if (rn == rt && wb != NoWriteBack) | |
1256 | HALT_UNALLOC; | |
1257 | ||
1258 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1259 | if (wb != Post) | |
1260 | address += offset; | |
1261 | ||
2cdad34c | 1262 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1263 | aarch64_set_mem_u32 (cpu, address, aarch64_get_reg_u32 (cpu, rt, NO_SP)); |
1264 | ||
1265 | if (wb == Post) | |
1266 | address += offset; | |
1267 | ||
1268 | if (wb != NoWriteBack) | |
1269 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1270 | } | |
1271 | ||
1272 | /* 32 bit store scaled or unscaled zero- or | |
1273 | sign-extended 32-bit register offset. */ | |
1274 | static void | |
1275 | str32_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1276 | { | |
ef0d8ffc NC |
1277 | unsigned rm = INSTR (20, 16); |
1278 | unsigned rn = INSTR (9, 5); | |
1279 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1280 | |
1281 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1282 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
1283 | uint64_t displacement = OPT_SCALE (extended, 32, scaling); | |
1284 | ||
2cdad34c | 1285 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1286 | aarch64_set_mem_u32 (cpu, address + displacement, |
1287 | aarch64_get_reg_u64 (cpu, rt, NO_SP)); | |
1288 | } | |
1289 | ||
1290 | /* 64 bit store scaled unsigned 12 bit. */ | |
1291 | static void | |
1292 | str_abs (sim_cpu *cpu, uint32_t offset) | |
1293 | { | |
ef0d8ffc NC |
1294 | unsigned rn = INSTR (9, 5); |
1295 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 1296 | |
2cdad34c | 1297 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1298 | aarch64_set_mem_u64 (cpu, |
1299 | aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
1300 | + SCALE (offset, 64), | |
1301 | aarch64_get_reg_u64 (cpu, rt, NO_SP)); | |
1302 | } | |
1303 | ||
1304 | /* 64 bit store unscaled signed 9 bit with pre- or post-writeback. */ | |
1305 | static void | |
1306 | str_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1307 | { | |
ef0d8ffc NC |
1308 | unsigned rn = INSTR (9, 5); |
1309 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1310 | uint64_t address; |
1311 | ||
1312 | if (rn == rt && wb != NoWriteBack) | |
1313 | HALT_UNALLOC; | |
1314 | ||
1315 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1316 | ||
1317 | if (wb != Post) | |
1318 | address += offset; | |
1319 | ||
2cdad34c | 1320 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1321 | aarch64_set_mem_u64 (cpu, address, aarch64_get_reg_u64 (cpu, rt, NO_SP)); |
1322 | ||
1323 | if (wb == Post) | |
1324 | address += offset; | |
1325 | ||
1326 | if (wb != NoWriteBack) | |
1327 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1328 | } | |
1329 | ||
1330 | /* 64 bit store scaled or unscaled zero- | |
1331 | or sign-extended 32-bit register offset. */ | |
1332 | static void | |
1333 | str_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1334 | { | |
ef0d8ffc NC |
1335 | unsigned rm = INSTR (20, 16); |
1336 | unsigned rn = INSTR (9, 5); | |
1337 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1338 | /* rn may reference SP, rm and rt must reference ZR */ |
1339 | ||
1340 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1341 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
1342 | extension); | |
1343 | uint64_t displacement = OPT_SCALE (extended, 64, scaling); | |
1344 | ||
2cdad34c | 1345 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1346 | aarch64_set_mem_u64 (cpu, address + displacement, |
1347 | aarch64_get_reg_u64 (cpu, rt, NO_SP)); | |
1348 | } | |
1349 | ||
1350 | /* 32 bit store byte scaled unsigned 12 bit. */ | |
1351 | static void | |
1352 | strb_abs (sim_cpu *cpu, uint32_t offset) | |
1353 | { | |
ef0d8ffc NC |
1354 | unsigned rn = INSTR (9, 5); |
1355 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 1356 | |
2cdad34c | 1357 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1358 | /* The target register may not be SP but the source may be. |
1359 | There is no scaling required for a byte load. */ | |
1360 | aarch64_set_mem_u8 (cpu, | |
1361 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset, | |
1362 | aarch64_get_reg_u8 (cpu, rt, NO_SP)); | |
1363 | } | |
1364 | ||
1365 | /* 32 bit store byte unscaled signed 9 bit with pre- or post-writeback. */ | |
1366 | static void | |
1367 | strb_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1368 | { | |
ef0d8ffc NC |
1369 | unsigned rn = INSTR (9, 5); |
1370 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1371 | uint64_t address; |
1372 | ||
1373 | if (rn == rt && wb != NoWriteBack) | |
1374 | HALT_UNALLOC; | |
1375 | ||
1376 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1377 | ||
1378 | if (wb != Post) | |
1379 | address += offset; | |
1380 | ||
2cdad34c | 1381 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1382 | aarch64_set_mem_u8 (cpu, address, aarch64_get_reg_u8 (cpu, rt, NO_SP)); |
1383 | ||
1384 | if (wb == Post) | |
1385 | address += offset; | |
1386 | ||
1387 | if (wb != NoWriteBack) | |
1388 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1389 | } | |
1390 | ||
1391 | /* 32 bit store byte scaled or unscaled zero- | |
1392 | or sign-extended 32-bit register offset. */ | |
1393 | static void | |
1394 | strb_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1395 | { | |
ef0d8ffc NC |
1396 | unsigned rm = INSTR (20, 16); |
1397 | unsigned rn = INSTR (9, 5); | |
1398 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1399 | /* rn may reference SP, rm and rt must reference ZR */ |
1400 | ||
1401 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1402 | int64_t displacement = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
1403 | extension); | |
1404 | ||
2cdad34c | 1405 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1406 | /* There is no scaling required for a byte load. */ |
1407 | aarch64_set_mem_u8 (cpu, address + displacement, | |
1408 | aarch64_get_reg_u8 (cpu, rt, NO_SP)); | |
1409 | } | |
1410 | ||
1411 | /* 32 bit store short scaled unsigned 12 bit. */ | |
1412 | static void | |
1413 | strh_abs (sim_cpu *cpu, uint32_t offset) | |
1414 | { | |
ef0d8ffc NC |
1415 | unsigned rn = INSTR (9, 5); |
1416 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 1417 | |
2cdad34c | 1418 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1419 | /* The target register may not be SP but the source may be. */ |
1420 | aarch64_set_mem_u16 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
1421 | + SCALE (offset, 16), | |
1422 | aarch64_get_reg_u16 (cpu, rt, NO_SP)); | |
1423 | } | |
1424 | ||
1425 | /* 32 bit store short unscaled signed 9 bit with pre- or post-writeback. */ | |
1426 | static void | |
1427 | strh_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
1428 | { | |
ef0d8ffc NC |
1429 | unsigned rn = INSTR (9, 5); |
1430 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1431 | uint64_t address; |
1432 | ||
1433 | if (rn == rt && wb != NoWriteBack) | |
1434 | HALT_UNALLOC; | |
1435 | ||
1436 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1437 | ||
1438 | if (wb != Post) | |
1439 | address += offset; | |
1440 | ||
2cdad34c | 1441 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1442 | aarch64_set_mem_u16 (cpu, address, aarch64_get_reg_u16 (cpu, rt, NO_SP)); |
1443 | ||
1444 | if (wb == Post) | |
1445 | address += offset; | |
1446 | ||
1447 | if (wb != NoWriteBack) | |
1448 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
1449 | } | |
1450 | ||
1451 | /* 32 bit store short scaled or unscaled zero- | |
1452 | or sign-extended 32-bit register offset. */ | |
1453 | static void | |
1454 | strh_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1455 | { | |
ef0d8ffc NC |
1456 | unsigned rm = INSTR (20, 16); |
1457 | unsigned rn = INSTR (9, 5); | |
1458 | unsigned rt = INSTR (4, 0); | |
2e8cf49e NC |
1459 | /* rn may reference SP, rm and rt must reference ZR */ |
1460 | ||
1461 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
1462 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), extension); | |
1463 | uint64_t displacement = OPT_SCALE (extended, 16, scaling); | |
1464 | ||
2cdad34c | 1465 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1466 | aarch64_set_mem_u16 (cpu, address + displacement, |
1467 | aarch64_get_reg_u16 (cpu, rt, NO_SP)); | |
1468 | } | |
1469 | ||
1470 | /* Prefetch unsigned 12 bit. */ | |
1471 | static void | |
1472 | prfm_abs (sim_cpu *cpu, uint32_t offset) | |
1473 | { | |
1474 | /* instr[4,0] = prfop : 00000 ==> PLDL1KEEP, 00001 ==> PLDL1STRM, | |
1475 | 00010 ==> PLDL2KEEP, 00001 ==> PLDL2STRM, | |
1476 | 00100 ==> PLDL3KEEP, 00101 ==> PLDL3STRM, | |
1477 | 10000 ==> PSTL1KEEP, 10001 ==> PSTL1STRM, | |
1478 | 10010 ==> PSTL2KEEP, 10001 ==> PSTL2STRM, | |
1479 | 10100 ==> PSTL3KEEP, 10101 ==> PSTL3STRM, | |
1480 | ow ==> UNALLOC | |
ef0d8ffc | 1481 | PrfOp prfop = prfop (instr, 4, 0); |
2e8cf49e NC |
1482 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK) |
1483 | + SCALE (offset, 64). */ | |
1484 | ||
1485 | /* TODO : implement prefetch of address. */ | |
1486 | } | |
1487 | ||
1488 | /* Prefetch scaled or unscaled zero- or sign-extended 32-bit register offset. */ | |
1489 | static void | |
1490 | prfm_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
1491 | { | |
1492 | /* instr[4,0] = prfop : 00000 ==> PLDL1KEEP, 00001 ==> PLDL1STRM, | |
1493 | 00010 ==> PLDL2KEEP, 00001 ==> PLDL2STRM, | |
1494 | 00100 ==> PLDL3KEEP, 00101 ==> PLDL3STRM, | |
1495 | 10000 ==> PSTL1KEEP, 10001 ==> PSTL1STRM, | |
1496 | 10010 ==> PSTL2KEEP, 10001 ==> PSTL2STRM, | |
1497 | 10100 ==> PSTL3KEEP, 10101 ==> PSTL3STRM, | |
1498 | ow ==> UNALLOC | |
1499 | rn may reference SP, rm may only reference ZR | |
ef0d8ffc | 1500 | PrfOp prfop = prfop (instr, 4, 0); |
2e8cf49e NC |
1501 | uint64_t base = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
1502 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
1503 | extension); | |
1504 | uint64_t displacement = OPT_SCALE (extended, 64, scaling); | |
1505 | uint64_t address = base + displacement. */ | |
1506 | ||
1507 | /* TODO : implement prefetch of address */ | |
1508 | } | |
1509 | ||
1510 | /* 64 bit pc-relative prefetch. */ | |
1511 | static void | |
1512 | prfm_pcrel (sim_cpu *cpu, int32_t offset) | |
1513 | { | |
1514 | /* instr[4,0] = prfop : 00000 ==> PLDL1KEEP, 00001 ==> PLDL1STRM, | |
1515 | 00010 ==> PLDL2KEEP, 00001 ==> PLDL2STRM, | |
1516 | 00100 ==> PLDL3KEEP, 00101 ==> PLDL3STRM, | |
1517 | 10000 ==> PSTL1KEEP, 10001 ==> PSTL1STRM, | |
1518 | 10010 ==> PSTL2KEEP, 10001 ==> PSTL2STRM, | |
1519 | 10100 ==> PSTL3KEEP, 10101 ==> PSTL3STRM, | |
1520 | ow ==> UNALLOC | |
ef0d8ffc | 1521 | PrfOp prfop = prfop (instr, 4, 0); |
2e8cf49e NC |
1522 | uint64_t address = aarch64_get_PC (cpu) + offset. */ |
1523 | ||
1524 | /* TODO : implement this */ | |
1525 | } | |
1526 | ||
1527 | /* Load-store exclusive. */ | |
1528 | ||
1529 | static void | |
1530 | ldxr (sim_cpu *cpu) | |
1531 | { | |
ef0d8ffc NC |
1532 | unsigned rn = INSTR (9, 5); |
1533 | unsigned rt = INSTR (4, 0); | |
2e8cf49e | 1534 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
ef0d8ffc NC |
1535 | int size = INSTR (31, 30); |
1536 | /* int ordered = INSTR (15, 15); */ | |
1537 | /* int exclusive = ! INSTR (23, 23); */ | |
2e8cf49e | 1538 | |
2cdad34c | 1539 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1540 | switch (size) |
1541 | { | |
1542 | case 0: | |
1543 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u8 (cpu, address)); | |
1544 | break; | |
1545 | case 1: | |
1546 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u16 (cpu, address)); | |
1547 | break; | |
1548 | case 2: | |
1549 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u32 (cpu, address)); | |
1550 | break; | |
1551 | case 3: | |
1552 | aarch64_set_reg_u64 (cpu, rt, NO_SP, aarch64_get_mem_u64 (cpu, address)); | |
1553 | break; | |
2e8cf49e NC |
1554 | } |
1555 | } | |
1556 | ||
1557 | static void | |
1558 | stxr (sim_cpu *cpu) | |
1559 | { | |
ef0d8ffc NC |
1560 | unsigned rn = INSTR (9, 5); |
1561 | unsigned rt = INSTR (4, 0); | |
1562 | unsigned rs = INSTR (20, 16); | |
2e8cf49e | 1563 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
ef0d8ffc | 1564 | int size = INSTR (31, 30); |
2e8cf49e NC |
1565 | uint64_t data = aarch64_get_reg_u64 (cpu, rt, NO_SP); |
1566 | ||
1567 | switch (size) | |
1568 | { | |
1569 | case 0: aarch64_set_mem_u8 (cpu, address, data); break; | |
1570 | case 1: aarch64_set_mem_u16 (cpu, address, data); break; | |
1571 | case 2: aarch64_set_mem_u32 (cpu, address, data); break; | |
1572 | case 3: aarch64_set_mem_u64 (cpu, address, data); break; | |
2e8cf49e NC |
1573 | } |
1574 | ||
2cdad34c | 1575 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1576 | aarch64_set_reg_u64 (cpu, rs, NO_SP, 0); /* Always exclusive... */ |
1577 | } | |
1578 | ||
1579 | static void | |
1580 | dexLoadLiteral (sim_cpu *cpu) | |
1581 | { | |
1582 | /* instr[29,27] == 011 | |
1583 | instr[25,24] == 00 | |
1584 | instr[31,30:26] = opc: 000 ==> LDRW, 001 ==> FLDRS | |
1585 | 010 ==> LDRX, 011 ==> FLDRD | |
1586 | 100 ==> LDRSW, 101 ==> FLDRQ | |
1587 | 110 ==> PRFM, 111 ==> UNALLOC | |
1588 | instr[26] ==> V : 0 ==> GReg, 1 ==> FReg | |
1589 | instr[23, 5] == simm19 */ | |
1590 | ||
ef0d8ffc | 1591 | /* unsigned rt = INSTR (4, 0); */ |
7517e550 | 1592 | uint32_t dispatch = (INSTR (31, 30) << 1) | INSTR (26, 26); |
2e8cf49e NC |
1593 | int32_t imm = simm32 (aarch64_get_instr (cpu), 23, 5); |
1594 | ||
1595 | switch (dispatch) | |
1596 | { | |
1597 | case 0: ldr32_pcrel (cpu, imm); break; | |
1598 | case 1: fldrs_pcrel (cpu, imm); break; | |
1599 | case 2: ldr_pcrel (cpu, imm); break; | |
1600 | case 3: fldrd_pcrel (cpu, imm); break; | |
1601 | case 4: ldrsw_pcrel (cpu, imm); break; | |
1602 | case 5: fldrq_pcrel (cpu, imm); break; | |
1603 | case 6: prfm_pcrel (cpu, imm); break; | |
1604 | case 7: | |
1605 | default: | |
1606 | HALT_UNALLOC; | |
1607 | } | |
1608 | } | |
1609 | ||
1610 | /* Immediate arithmetic | |
1611 | The aimm argument is a 12 bit unsigned value or a 12 bit unsigned | |
1612 | value left shifted by 12 bits (done at decode). | |
1613 | ||
1614 | N.B. the register args (dest, source) can normally be Xn or SP. | |
1615 | the exception occurs for flag setting instructions which may | |
1616 | only use Xn for the output (dest). */ | |
1617 | ||
1618 | /* 32 bit add immediate. */ | |
1619 | static void | |
1620 | add32 (sim_cpu *cpu, uint32_t aimm) | |
1621 | { | |
ef0d8ffc NC |
1622 | unsigned rn = INSTR (9, 5); |
1623 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1624 | |
2cdad34c | 1625 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1626 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
1627 | aarch64_get_reg_u32 (cpu, rn, SP_OK) + aimm); | |
1628 | } | |
1629 | ||
1630 | /* 64 bit add immediate. */ | |
1631 | static void | |
1632 | add64 (sim_cpu *cpu, uint32_t aimm) | |
1633 | { | |
ef0d8ffc NC |
1634 | unsigned rn = INSTR (9, 5); |
1635 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1636 | |
2cdad34c | 1637 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1638 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
1639 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + aimm); | |
1640 | } | |
1641 | ||
1642 | static void | |
1643 | set_flags_for_add32 (sim_cpu *cpu, int32_t value1, int32_t value2) | |
1644 | { | |
1645 | int32_t result = value1 + value2; | |
1646 | int64_t sresult = (int64_t) value1 + (int64_t) value2; | |
1647 | uint64_t uresult = (uint64_t)(uint32_t) value1 | |
1648 | + (uint64_t)(uint32_t) value2; | |
1649 | uint32_t flags = 0; | |
1650 | ||
1651 | if (result == 0) | |
1652 | flags |= Z; | |
1653 | ||
1654 | if (result & (1 << 31)) | |
1655 | flags |= N; | |
1656 | ||
0592e80b | 1657 | if (uresult != (uint32_t)uresult) |
2e8cf49e NC |
1658 | flags |= C; |
1659 | ||
0592e80b | 1660 | if (sresult != (int32_t)sresult) |
2e8cf49e NC |
1661 | flags |= V; |
1662 | ||
1663 | aarch64_set_CPSR (cpu, flags); | |
1664 | } | |
1665 | ||
963201cf JW |
1666 | #define NEG(a) (((a) & signbit) == signbit) |
1667 | #define POS(a) (((a) & signbit) == 0) | |
1668 | ||
2e8cf49e NC |
1669 | static void |
1670 | set_flags_for_add64 (sim_cpu *cpu, uint64_t value1, uint64_t value2) | |
1671 | { | |
963201cf JW |
1672 | uint64_t result = value1 + value2; |
1673 | uint32_t flags = 0; | |
1674 | uint64_t signbit = 1ULL << 63; | |
2e8cf49e NC |
1675 | |
1676 | if (result == 0) | |
1677 | flags |= Z; | |
1678 | ||
963201cf | 1679 | if (NEG (result)) |
2e8cf49e NC |
1680 | flags |= N; |
1681 | ||
963201cf JW |
1682 | if ( (NEG (value1) && NEG (value2)) |
1683 | || (NEG (value1) && POS (result)) | |
1684 | || (NEG (value2) && POS (result))) | |
1685 | flags |= C; | |
1686 | ||
1687 | if ( (NEG (value1) && NEG (value2) && POS (result)) | |
1688 | || (POS (value1) && POS (value2) && NEG (result))) | |
1689 | flags |= V; | |
2e8cf49e NC |
1690 | |
1691 | aarch64_set_CPSR (cpu, flags); | |
1692 | } | |
1693 | ||
2e8cf49e NC |
1694 | static void |
1695 | set_flags_for_sub32 (sim_cpu *cpu, uint32_t value1, uint32_t value2) | |
1696 | { | |
1697 | uint32_t result = value1 - value2; | |
1698 | uint32_t flags = 0; | |
57aa1742 | 1699 | uint32_t signbit = 1U << 31; |
2e8cf49e NC |
1700 | |
1701 | if (result == 0) | |
1702 | flags |= Z; | |
1703 | ||
1704 | if (NEG (result)) | |
1705 | flags |= N; | |
1706 | ||
1707 | if ( (NEG (value1) && POS (value2)) | |
1708 | || (NEG (value1) && POS (result)) | |
1709 | || (POS (value2) && POS (result))) | |
1710 | flags |= C; | |
1711 | ||
1712 | if ( (NEG (value1) && POS (value2) && POS (result)) | |
1713 | || (POS (value1) && NEG (value2) && NEG (result))) | |
1714 | flags |= V; | |
1715 | ||
1716 | aarch64_set_CPSR (cpu, flags); | |
1717 | } | |
1718 | ||
1719 | static void | |
1720 | set_flags_for_sub64 (sim_cpu *cpu, uint64_t value1, uint64_t value2) | |
1721 | { | |
1722 | uint64_t result = value1 - value2; | |
1723 | uint32_t flags = 0; | |
1724 | uint64_t signbit = 1ULL << 63; | |
1725 | ||
1726 | if (result == 0) | |
1727 | flags |= Z; | |
1728 | ||
1729 | if (NEG (result)) | |
1730 | flags |= N; | |
1731 | ||
1732 | if ( (NEG (value1) && POS (value2)) | |
1733 | || (NEG (value1) && POS (result)) | |
1734 | || (POS (value2) && POS (result))) | |
1735 | flags |= C; | |
1736 | ||
1737 | if ( (NEG (value1) && POS (value2) && POS (result)) | |
1738 | || (POS (value1) && NEG (value2) && NEG (result))) | |
1739 | flags |= V; | |
1740 | ||
1741 | aarch64_set_CPSR (cpu, flags); | |
1742 | } | |
1743 | ||
1744 | static void | |
1745 | set_flags_for_binop32 (sim_cpu *cpu, uint32_t result) | |
1746 | { | |
1747 | uint32_t flags = 0; | |
1748 | ||
1749 | if (result == 0) | |
1750 | flags |= Z; | |
1751 | else | |
1752 | flags &= ~ Z; | |
1753 | ||
1754 | if (result & (1 << 31)) | |
1755 | flags |= N; | |
1756 | else | |
1757 | flags &= ~ N; | |
1758 | ||
1759 | aarch64_set_CPSR (cpu, flags); | |
1760 | } | |
1761 | ||
1762 | static void | |
1763 | set_flags_for_binop64 (sim_cpu *cpu, uint64_t result) | |
1764 | { | |
1765 | uint32_t flags = 0; | |
1766 | ||
1767 | if (result == 0) | |
1768 | flags |= Z; | |
1769 | else | |
1770 | flags &= ~ Z; | |
1771 | ||
1772 | if (result & (1ULL << 63)) | |
1773 | flags |= N; | |
1774 | else | |
1775 | flags &= ~ N; | |
1776 | ||
1777 | aarch64_set_CPSR (cpu, flags); | |
1778 | } | |
1779 | ||
1780 | /* 32 bit add immediate set flags. */ | |
1781 | static void | |
1782 | adds32 (sim_cpu *cpu, uint32_t aimm) | |
1783 | { | |
ef0d8ffc NC |
1784 | unsigned rn = INSTR (9, 5); |
1785 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
1786 | /* TODO : do we need to worry about signs here? */ |
1787 | int32_t value1 = aarch64_get_reg_s32 (cpu, rn, SP_OK); | |
1788 | ||
2cdad34c | 1789 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1790 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + aimm); |
1791 | set_flags_for_add32 (cpu, value1, aimm); | |
1792 | } | |
1793 | ||
1794 | /* 64 bit add immediate set flags. */ | |
1795 | static void | |
1796 | adds64 (sim_cpu *cpu, uint32_t aimm) | |
1797 | { | |
ef0d8ffc NC |
1798 | unsigned rn = INSTR (9, 5); |
1799 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
1800 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
1801 | uint64_t value2 = aimm; | |
1802 | ||
2cdad34c | 1803 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1804 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2); |
1805 | set_flags_for_add64 (cpu, value1, value2); | |
1806 | } | |
1807 | ||
1808 | /* 32 bit sub immediate. */ | |
1809 | static void | |
1810 | sub32 (sim_cpu *cpu, uint32_t aimm) | |
1811 | { | |
ef0d8ffc NC |
1812 | unsigned rn = INSTR (9, 5); |
1813 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1814 | |
2cdad34c | 1815 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1816 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
1817 | aarch64_get_reg_u32 (cpu, rn, SP_OK) - aimm); | |
1818 | } | |
1819 | ||
1820 | /* 64 bit sub immediate. */ | |
1821 | static void | |
1822 | sub64 (sim_cpu *cpu, uint32_t aimm) | |
1823 | { | |
ef0d8ffc NC |
1824 | unsigned rn = INSTR (9, 5); |
1825 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1826 | |
2cdad34c | 1827 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1828 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
1829 | aarch64_get_reg_u64 (cpu, rn, SP_OK) - aimm); | |
1830 | } | |
1831 | ||
1832 | /* 32 bit sub immediate set flags. */ | |
1833 | static void | |
1834 | subs32 (sim_cpu *cpu, uint32_t aimm) | |
1835 | { | |
ef0d8ffc NC |
1836 | unsigned rn = INSTR (9, 5); |
1837 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
1838 | uint32_t value1 = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
1839 | uint32_t value2 = aimm; | |
1840 | ||
2cdad34c | 1841 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1842 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 - value2); |
1843 | set_flags_for_sub32 (cpu, value1, value2); | |
1844 | } | |
1845 | ||
1846 | /* 64 bit sub immediate set flags. */ | |
1847 | static void | |
1848 | subs64 (sim_cpu *cpu, uint32_t aimm) | |
1849 | { | |
ef0d8ffc NC |
1850 | unsigned rn = INSTR (9, 5); |
1851 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
1852 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
1853 | uint32_t value2 = aimm; | |
1854 | ||
2cdad34c | 1855 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1856 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 - value2); |
1857 | set_flags_for_sub64 (cpu, value1, value2); | |
1858 | } | |
1859 | ||
1860 | /* Data Processing Register. */ | |
1861 | ||
1862 | /* First two helpers to perform the shift operations. */ | |
1863 | ||
1864 | static inline uint32_t | |
1865 | shifted32 (uint32_t value, Shift shift, uint32_t count) | |
1866 | { | |
1867 | switch (shift) | |
1868 | { | |
1869 | default: | |
1870 | case LSL: | |
1871 | return (value << count); | |
1872 | case LSR: | |
1873 | return (value >> count); | |
1874 | case ASR: | |
1875 | { | |
1876 | int32_t svalue = value; | |
1877 | return (svalue >> count); | |
1878 | } | |
1879 | case ROR: | |
1880 | { | |
1881 | uint32_t top = value >> count; | |
1882 | uint32_t bottom = value << (32 - count); | |
1883 | return (bottom | top); | |
1884 | } | |
1885 | } | |
1886 | } | |
1887 | ||
1888 | static inline uint64_t | |
1889 | shifted64 (uint64_t value, Shift shift, uint32_t count) | |
1890 | { | |
1891 | switch (shift) | |
1892 | { | |
1893 | default: | |
1894 | case LSL: | |
1895 | return (value << count); | |
1896 | case LSR: | |
1897 | return (value >> count); | |
1898 | case ASR: | |
1899 | { | |
1900 | int64_t svalue = value; | |
1901 | return (svalue >> count); | |
1902 | } | |
1903 | case ROR: | |
1904 | { | |
1905 | uint64_t top = value >> count; | |
1906 | uint64_t bottom = value << (64 - count); | |
1907 | return (bottom | top); | |
1908 | } | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | /* Arithmetic shifted register. | |
1913 | These allow an optional LSL, ASR or LSR to the second source | |
1914 | register with a count up to the register bit count. | |
1915 | ||
1916 | N.B register args may not be SP. */ | |
1917 | ||
1918 | /* 32 bit ADD shifted register. */ | |
1919 | static void | |
1920 | add32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
1921 | { | |
ef0d8ffc NC |
1922 | unsigned rm = INSTR (20, 16); |
1923 | unsigned rn = INSTR (9, 5); | |
1924 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1925 | |
2cdad34c | 1926 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1927 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
1928 | aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
1929 | + shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
1930 | shift, count)); | |
1931 | } | |
1932 | ||
1933 | /* 64 bit ADD shifted register. */ | |
1934 | static void | |
1935 | add64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
1936 | { | |
ef0d8ffc NC |
1937 | unsigned rm = INSTR (20, 16); |
1938 | unsigned rn = INSTR (9, 5); | |
1939 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1940 | |
2cdad34c | 1941 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1942 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
1943 | aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
1944 | + shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), | |
1945 | shift, count)); | |
1946 | } | |
1947 | ||
1948 | /* 32 bit ADD shifted register setting flags. */ | |
1949 | static void | |
1950 | adds32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
1951 | { | |
ef0d8ffc NC |
1952 | unsigned rm = INSTR (20, 16); |
1953 | unsigned rn = INSTR (9, 5); | |
1954 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
1955 | |
1956 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
1957 | uint32_t value2 = shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
1958 | shift, count); | |
1959 | ||
2cdad34c | 1960 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1961 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2); |
1962 | set_flags_for_add32 (cpu, value1, value2); | |
1963 | } | |
1964 | ||
1965 | /* 64 bit ADD shifted register setting flags. */ | |
1966 | static void | |
1967 | adds64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
1968 | { | |
ef0d8ffc NC |
1969 | unsigned rm = INSTR (20, 16); |
1970 | unsigned rn = INSTR (9, 5); | |
1971 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
1972 | |
1973 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
1974 | uint64_t value2 = shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), | |
1975 | shift, count); | |
1976 | ||
2cdad34c | 1977 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1978 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2); |
1979 | set_flags_for_add64 (cpu, value1, value2); | |
1980 | } | |
1981 | ||
1982 | /* 32 bit SUB shifted register. */ | |
1983 | static void | |
1984 | sub32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
1985 | { | |
ef0d8ffc NC |
1986 | unsigned rm = INSTR (20, 16); |
1987 | unsigned rn = INSTR (9, 5); | |
1988 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 1989 | |
2cdad34c | 1990 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
1991 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
1992 | aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
1993 | - shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
1994 | shift, count)); | |
1995 | } | |
1996 | ||
1997 | /* 64 bit SUB shifted register. */ | |
1998 | static void | |
1999 | sub64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
2000 | { | |
ef0d8ffc NC |
2001 | unsigned rm = INSTR (20, 16); |
2002 | unsigned rn = INSTR (9, 5); | |
2003 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2004 | |
2cdad34c | 2005 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2006 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
2007 | aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
2008 | - shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), | |
2009 | shift, count)); | |
2010 | } | |
2011 | ||
2012 | /* 32 bit SUB shifted register setting flags. */ | |
2013 | static void | |
2014 | subs32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
2015 | { | |
ef0d8ffc NC |
2016 | unsigned rm = INSTR (20, 16); |
2017 | unsigned rn = INSTR (9, 5); | |
2018 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2019 | |
2020 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
2021 | uint32_t value2 = shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
2022 | shift, count); | |
2023 | ||
2cdad34c | 2024 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2025 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 - value2); |
2026 | set_flags_for_sub32 (cpu, value1, value2); | |
2027 | } | |
2028 | ||
2029 | /* 64 bit SUB shifted register setting flags. */ | |
2030 | static void | |
2031 | subs64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
2032 | { | |
ef0d8ffc NC |
2033 | unsigned rm = INSTR (20, 16); |
2034 | unsigned rn = INSTR (9, 5); | |
2035 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2036 | |
2037 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
2038 | uint64_t value2 = shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), | |
2039 | shift, count); | |
2040 | ||
2cdad34c | 2041 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2042 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 - value2); |
2043 | set_flags_for_sub64 (cpu, value1, value2); | |
2044 | } | |
2045 | ||
2046 | /* First a couple more helpers to fetch the | |
2047 | relevant source register element either | |
2048 | sign or zero extended as required by the | |
2049 | extension value. */ | |
2050 | ||
2051 | static uint32_t | |
2052 | extreg32 (sim_cpu *cpu, unsigned int lo, Extension extension) | |
2053 | { | |
2054 | switch (extension) | |
2055 | { | |
2056 | case UXTB: return aarch64_get_reg_u8 (cpu, lo, NO_SP); | |
2057 | case UXTH: return aarch64_get_reg_u16 (cpu, lo, NO_SP); | |
2058 | case UXTW: /* Fall through. */ | |
2059 | case UXTX: return aarch64_get_reg_u32 (cpu, lo, NO_SP); | |
2060 | case SXTB: return aarch64_get_reg_s8 (cpu, lo, NO_SP); | |
2061 | case SXTH: return aarch64_get_reg_s16 (cpu, lo, NO_SP); | |
2062 | case SXTW: /* Fall through. */ | |
2063 | case SXTX: /* Fall through. */ | |
2064 | default: return aarch64_get_reg_s32 (cpu, lo, NO_SP); | |
2065 | } | |
2066 | } | |
2067 | ||
2068 | static uint64_t | |
2069 | extreg64 (sim_cpu *cpu, unsigned int lo, Extension extension) | |
2070 | { | |
2071 | switch (extension) | |
2072 | { | |
2073 | case UXTB: return aarch64_get_reg_u8 (cpu, lo, NO_SP); | |
2074 | case UXTH: return aarch64_get_reg_u16 (cpu, lo, NO_SP); | |
2075 | case UXTW: return aarch64_get_reg_u32 (cpu, lo, NO_SP); | |
2076 | case UXTX: return aarch64_get_reg_u64 (cpu, lo, NO_SP); | |
2077 | case SXTB: return aarch64_get_reg_s8 (cpu, lo, NO_SP); | |
2078 | case SXTH: return aarch64_get_reg_s16 (cpu, lo, NO_SP); | |
2079 | case SXTW: return aarch64_get_reg_s32 (cpu, lo, NO_SP); | |
2080 | case SXTX: | |
2081 | default: return aarch64_get_reg_s64 (cpu, lo, NO_SP); | |
2082 | } | |
2083 | } | |
2084 | ||
2085 | /* Arithmetic extending register | |
2086 | These allow an optional sign extension of some portion of the | |
2087 | second source register followed by an optional left shift of | |
2088 | between 1 and 4 bits (i.e. a shift of 0-4 bits???) | |
2089 | ||
2090 | N.B output (dest) and first input arg (source) may normally be Xn | |
2091 | or SP. However, for flag setting operations dest can only be | |
2092 | Xn. Second input registers are always Xn. */ | |
2093 | ||
2094 | /* 32 bit ADD extending register. */ | |
2095 | static void | |
2096 | add32_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2097 | { | |
ef0d8ffc NC |
2098 | unsigned rm = INSTR (20, 16); |
2099 | unsigned rn = INSTR (9, 5); | |
2100 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2101 | |
2cdad34c | 2102 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2103 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
2104 | aarch64_get_reg_u32 (cpu, rn, SP_OK) | |
2105 | + (extreg32 (cpu, rm, extension) << shift)); | |
2106 | } | |
2107 | ||
2108 | /* 64 bit ADD extending register. | |
2109 | N.B. This subsumes the case with 64 bit source2 and UXTX #n or LSL #0. */ | |
2110 | static void | |
2111 | add64_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2112 | { | |
ef0d8ffc NC |
2113 | unsigned rm = INSTR (20, 16); |
2114 | unsigned rn = INSTR (9, 5); | |
2115 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2116 | |
2cdad34c | 2117 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2118 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
2119 | aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
2120 | + (extreg64 (cpu, rm, extension) << shift)); | |
2121 | } | |
2122 | ||
2123 | /* 32 bit ADD extending register setting flags. */ | |
2124 | static void | |
2125 | adds32_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2126 | { | |
ef0d8ffc NC |
2127 | unsigned rm = INSTR (20, 16); |
2128 | unsigned rn = INSTR (9, 5); | |
2129 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2130 | |
2131 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, SP_OK); | |
2132 | uint32_t value2 = extreg32 (cpu, rm, extension) << shift; | |
2133 | ||
2cdad34c | 2134 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2135 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2); |
2136 | set_flags_for_add32 (cpu, value1, value2); | |
2137 | } | |
2138 | ||
2139 | /* 64 bit ADD extending register setting flags */ | |
2140 | /* N.B. this subsumes the case with 64 bit source2 and UXTX #n or LSL #0 */ | |
2141 | static void | |
2142 | adds64_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2143 | { | |
ef0d8ffc NC |
2144 | unsigned rm = INSTR (20, 16); |
2145 | unsigned rn = INSTR (9, 5); | |
2146 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2147 | |
2148 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
2149 | uint64_t value2 = extreg64 (cpu, rm, extension) << shift; | |
2150 | ||
2cdad34c | 2151 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2152 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2); |
2153 | set_flags_for_add64 (cpu, value1, value2); | |
2154 | } | |
2155 | ||
2156 | /* 32 bit SUB extending register. */ | |
2157 | static void | |
2158 | sub32_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2159 | { | |
ef0d8ffc NC |
2160 | unsigned rm = INSTR (20, 16); |
2161 | unsigned rn = INSTR (9, 5); | |
2162 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2163 | |
2cdad34c | 2164 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2165 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
2166 | aarch64_get_reg_u32 (cpu, rn, SP_OK) | |
2167 | - (extreg32 (cpu, rm, extension) << shift)); | |
2168 | } | |
2169 | ||
2170 | /* 64 bit SUB extending register. */ | |
2171 | /* N.B. this subsumes the case with 64 bit source2 and UXTX #n or LSL #0. */ | |
2172 | static void | |
2173 | sub64_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2174 | { | |
ef0d8ffc NC |
2175 | unsigned rm = INSTR (20, 16); |
2176 | unsigned rn = INSTR (9, 5); | |
2177 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2178 | |
2cdad34c | 2179 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2180 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
2181 | aarch64_get_reg_u64 (cpu, rn, SP_OK) | |
2182 | - (extreg64 (cpu, rm, extension) << shift)); | |
2183 | } | |
2184 | ||
2185 | /* 32 bit SUB extending register setting flags. */ | |
2186 | static void | |
2187 | subs32_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2188 | { | |
ef0d8ffc NC |
2189 | unsigned rm = INSTR (20, 16); |
2190 | unsigned rn = INSTR (9, 5); | |
2191 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2192 | |
2193 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, SP_OK); | |
2194 | uint32_t value2 = extreg32 (cpu, rm, extension) << shift; | |
2195 | ||
2cdad34c | 2196 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2197 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 - value2); |
2198 | set_flags_for_sub32 (cpu, value1, value2); | |
2199 | } | |
2200 | ||
2201 | /* 64 bit SUB extending register setting flags */ | |
2202 | /* N.B. this subsumes the case with 64 bit source2 and UXTX #n or LSL #0 */ | |
2203 | static void | |
2204 | subs64_ext (sim_cpu *cpu, Extension extension, uint32_t shift) | |
2205 | { | |
ef0d8ffc NC |
2206 | unsigned rm = INSTR (20, 16); |
2207 | unsigned rn = INSTR (9, 5); | |
2208 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2209 | |
2210 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
2211 | uint64_t value2 = extreg64 (cpu, rm, extension) << shift; | |
2212 | ||
2cdad34c | 2213 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2214 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 - value2); |
2215 | set_flags_for_sub64 (cpu, value1, value2); | |
2216 | } | |
2217 | ||
2218 | static void | |
2219 | dexAddSubtractImmediate (sim_cpu *cpu) | |
2220 | { | |
2221 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
2222 | instr[30] = op : 0 ==> ADD, 1 ==> SUB | |
2223 | instr[29] = set : 0 ==> no flags, 1 ==> set flags | |
2224 | instr[28,24] = 10001 | |
2225 | instr[23,22] = shift : 00 == LSL#0, 01 = LSL#12 1x = UNALLOC | |
2226 | instr[21,10] = uimm12 | |
2227 | instr[9,5] = Rn | |
2228 | instr[4,0] = Rd */ | |
2229 | ||
2230 | /* N.B. the shift is applied at decode before calling the add/sub routine. */ | |
ef0d8ffc NC |
2231 | uint32_t shift = INSTR (23, 22); |
2232 | uint32_t imm = INSTR (21, 10); | |
2233 | uint32_t dispatch = INSTR (31, 29); | |
2e8cf49e NC |
2234 | |
2235 | NYI_assert (28, 24, 0x11); | |
2236 | ||
2237 | if (shift > 1) | |
2238 | HALT_UNALLOC; | |
2239 | ||
2240 | if (shift) | |
2241 | imm <<= 12; | |
2242 | ||
2243 | switch (dispatch) | |
2244 | { | |
2245 | case 0: add32 (cpu, imm); break; | |
2246 | case 1: adds32 (cpu, imm); break; | |
2247 | case 2: sub32 (cpu, imm); break; | |
2248 | case 3: subs32 (cpu, imm); break; | |
2249 | case 4: add64 (cpu, imm); break; | |
2250 | case 5: adds64 (cpu, imm); break; | |
2251 | case 6: sub64 (cpu, imm); break; | |
2252 | case 7: subs64 (cpu, imm); break; | |
2e8cf49e NC |
2253 | } |
2254 | } | |
2255 | ||
2256 | static void | |
2257 | dexAddSubtractShiftedRegister (sim_cpu *cpu) | |
2258 | { | |
2259 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
2260 | instr[30,29] = op : 00 ==> ADD, 01 ==> ADDS, 10 ==> SUB, 11 ==> SUBS | |
2261 | instr[28,24] = 01011 | |
2262 | instr[23,22] = shift : 0 ==> LSL, 1 ==> LSR, 2 ==> ASR, 3 ==> UNALLOC | |
2263 | instr[21] = 0 | |
2264 | instr[20,16] = Rm | |
2265 | instr[15,10] = count : must be 0xxxxx for 32 bit | |
2266 | instr[9,5] = Rn | |
2267 | instr[4,0] = Rd */ | |
2268 | ||
ef0d8ffc NC |
2269 | uint32_t size = INSTR (31, 31); |
2270 | uint32_t count = INSTR (15, 10); | |
2271 | Shift shiftType = INSTR (23, 22); | |
2e8cf49e NC |
2272 | |
2273 | NYI_assert (28, 24, 0x0B); | |
2274 | NYI_assert (21, 21, 0); | |
2275 | ||
ef0d8ffc | 2276 | /* Shift encoded as ROR is unallocated. */ |
2e8cf49e NC |
2277 | if (shiftType == ROR) |
2278 | HALT_UNALLOC; | |
2279 | ||
ef0d8ffc NC |
2280 | /* 32 bit operations must have count[5] = 0 |
2281 | or else we have an UNALLOC. */ | |
2282 | if (size == 0 && uimm (count, 5, 5)) | |
2e8cf49e NC |
2283 | HALT_UNALLOC; |
2284 | ||
ef0d8ffc NC |
2285 | /* Dispatch on size:op i.e instr [31,29]. */ |
2286 | switch (INSTR (31, 29)) | |
2e8cf49e NC |
2287 | { |
2288 | case 0: add32_shift (cpu, shiftType, count); break; | |
2289 | case 1: adds32_shift (cpu, shiftType, count); break; | |
2290 | case 2: sub32_shift (cpu, shiftType, count); break; | |
2291 | case 3: subs32_shift (cpu, shiftType, count); break; | |
2292 | case 4: add64_shift (cpu, shiftType, count); break; | |
2293 | case 5: adds64_shift (cpu, shiftType, count); break; | |
2294 | case 6: sub64_shift (cpu, shiftType, count); break; | |
2295 | case 7: subs64_shift (cpu, shiftType, count); break; | |
2e8cf49e NC |
2296 | } |
2297 | } | |
2298 | ||
2299 | static void | |
2300 | dexAddSubtractExtendedRegister (sim_cpu *cpu) | |
2301 | { | |
2302 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
2303 | instr[30] = op : 0 ==> ADD, 1 ==> SUB | |
2304 | instr[29] = set? : 0 ==> no flags, 1 ==> set flags | |
2305 | instr[28,24] = 01011 | |
2306 | instr[23,22] = opt : 0 ==> ok, 1,2,3 ==> UNALLOC | |
2307 | instr[21] = 1 | |
2308 | instr[20,16] = Rm | |
2309 | instr[15,13] = option : 000 ==> UXTB, 001 ==> UXTH, | |
2310 | 000 ==> LSL|UXTW, 001 ==> UXTZ, | |
2311 | 000 ==> SXTB, 001 ==> SXTH, | |
2312 | 000 ==> SXTW, 001 ==> SXTX, | |
2313 | instr[12,10] = shift : 0,1,2,3,4 ==> ok, 5,6,7 ==> UNALLOC | |
2314 | instr[9,5] = Rn | |
2315 | instr[4,0] = Rd */ | |
2316 | ||
ef0d8ffc NC |
2317 | Extension extensionType = INSTR (15, 13); |
2318 | uint32_t shift = INSTR (12, 10); | |
2e8cf49e NC |
2319 | |
2320 | NYI_assert (28, 24, 0x0B); | |
2321 | NYI_assert (21, 21, 1); | |
2322 | ||
2323 | /* Shift may not exceed 4. */ | |
2324 | if (shift > 4) | |
2325 | HALT_UNALLOC; | |
2326 | ||
ef0d8ffc NC |
2327 | /* Dispatch on size:op:set?. */ |
2328 | switch (INSTR (31, 29)) | |
2e8cf49e NC |
2329 | { |
2330 | case 0: add32_ext (cpu, extensionType, shift); break; | |
2331 | case 1: adds32_ext (cpu, extensionType, shift); break; | |
2332 | case 2: sub32_ext (cpu, extensionType, shift); break; | |
2333 | case 3: subs32_ext (cpu, extensionType, shift); break; | |
2334 | case 4: add64_ext (cpu, extensionType, shift); break; | |
2335 | case 5: adds64_ext (cpu, extensionType, shift); break; | |
2336 | case 6: sub64_ext (cpu, extensionType, shift); break; | |
2337 | case 7: subs64_ext (cpu, extensionType, shift); break; | |
2e8cf49e NC |
2338 | } |
2339 | } | |
2340 | ||
2341 | /* Conditional data processing | |
2342 | Condition register is implicit 3rd source. */ | |
2343 | ||
2344 | /* 32 bit add with carry. */ | |
2345 | /* N.B register args may not be SP. */ | |
2346 | ||
2347 | static void | |
2348 | adc32 (sim_cpu *cpu) | |
2349 | { | |
ef0d8ffc NC |
2350 | unsigned rm = INSTR (20, 16); |
2351 | unsigned rn = INSTR (9, 5); | |
2352 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2353 | |
2cdad34c | 2354 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2355 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
2356 | aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
2357 | + aarch64_get_reg_u32 (cpu, rm, NO_SP) | |
2358 | + IS_SET (C)); | |
2359 | } | |
2360 | ||
2361 | /* 64 bit add with carry */ | |
2362 | static void | |
2363 | adc64 (sim_cpu *cpu) | |
2364 | { | |
ef0d8ffc NC |
2365 | unsigned rm = INSTR (20, 16); |
2366 | unsigned rn = INSTR (9, 5); | |
2367 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2368 | |
2cdad34c | 2369 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2370 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
2371 | aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
2372 | + aarch64_get_reg_u64 (cpu, rm, NO_SP) | |
2373 | + IS_SET (C)); | |
2374 | } | |
2375 | ||
2376 | /* 32 bit add with carry setting flags. */ | |
2377 | static void | |
2378 | adcs32 (sim_cpu *cpu) | |
2379 | { | |
ef0d8ffc NC |
2380 | unsigned rm = INSTR (20, 16); |
2381 | unsigned rn = INSTR (9, 5); | |
2382 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2383 | |
2384 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
2385 | uint32_t value2 = aarch64_get_reg_u32 (cpu, rm, NO_SP); | |
2386 | uint32_t carry = IS_SET (C); | |
2387 | ||
2cdad34c | 2388 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2389 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2 + carry); |
2390 | set_flags_for_add32 (cpu, value1, value2 + carry); | |
2391 | } | |
2392 | ||
2393 | /* 64 bit add with carry setting flags. */ | |
2394 | static void | |
2395 | adcs64 (sim_cpu *cpu) | |
2396 | { | |
ef0d8ffc NC |
2397 | unsigned rm = INSTR (20, 16); |
2398 | unsigned rn = INSTR (9, 5); | |
2399 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2400 | |
2401 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
2402 | uint64_t value2 = aarch64_get_reg_u64 (cpu, rm, NO_SP); | |
2403 | uint64_t carry = IS_SET (C); | |
2404 | ||
2cdad34c | 2405 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2406 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 + value2 + carry); |
2407 | set_flags_for_add64 (cpu, value1, value2 + carry); | |
2408 | } | |
2409 | ||
2410 | /* 32 bit sub with carry. */ | |
2411 | static void | |
2412 | sbc32 (sim_cpu *cpu) | |
2413 | { | |
ef0d8ffc NC |
2414 | unsigned rm = INSTR (20, 16); |
2415 | unsigned rn = INSTR (9, 5); /* ngc iff rn == 31. */ | |
2416 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2417 | |
2cdad34c | 2418 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2419 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
2420 | aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
2421 | - aarch64_get_reg_u32 (cpu, rm, NO_SP) | |
2422 | - 1 + IS_SET (C)); | |
2423 | } | |
2424 | ||
2425 | /* 64 bit sub with carry */ | |
2426 | static void | |
2427 | sbc64 (sim_cpu *cpu) | |
2428 | { | |
ef0d8ffc NC |
2429 | unsigned rm = INSTR (20, 16); |
2430 | unsigned rn = INSTR (9, 5); | |
2431 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 2432 | |
2cdad34c | 2433 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2434 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
2435 | aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
2436 | - aarch64_get_reg_u64 (cpu, rm, NO_SP) | |
2437 | - 1 + IS_SET (C)); | |
2438 | } | |
2439 | ||
2440 | /* 32 bit sub with carry setting flags */ | |
2441 | static void | |
2442 | sbcs32 (sim_cpu *cpu) | |
2443 | { | |
ef0d8ffc NC |
2444 | unsigned rm = INSTR (20, 16); |
2445 | unsigned rn = INSTR (9, 5); | |
2446 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2447 | |
2448 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
2449 | uint32_t value2 = aarch64_get_reg_u32 (cpu, rm, NO_SP); | |
2450 | uint32_t carry = IS_SET (C); | |
2451 | uint32_t result = value1 - value2 + 1 - carry; | |
2452 | ||
2cdad34c | 2453 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2454 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); |
2455 | set_flags_for_sub32 (cpu, value1, value2 + 1 - carry); | |
2456 | } | |
2457 | ||
2458 | /* 64 bit sub with carry setting flags */ | |
2459 | static void | |
2460 | sbcs64 (sim_cpu *cpu) | |
2461 | { | |
ef0d8ffc NC |
2462 | unsigned rm = INSTR (20, 16); |
2463 | unsigned rn = INSTR (9, 5); | |
2464 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
2465 | |
2466 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
2467 | uint64_t value2 = aarch64_get_reg_u64 (cpu, rm, NO_SP); | |
2468 | uint64_t carry = IS_SET (C); | |
2469 | uint64_t result = value1 - value2 + 1 - carry; | |
2470 | ||
2cdad34c | 2471 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2472 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); |
2473 | set_flags_for_sub64 (cpu, value1, value2 + 1 - carry); | |
2474 | } | |
2475 | ||
2476 | static void | |
2477 | dexAddSubtractWithCarry (sim_cpu *cpu) | |
2478 | { | |
2479 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
2480 | instr[30] = op : 0 ==> ADC, 1 ==> SBC | |
2481 | instr[29] = set? : 0 ==> no flags, 1 ==> set flags | |
2482 | instr[28,21] = 1 1010 000 | |
2483 | instr[20,16] = Rm | |
2484 | instr[15,10] = op2 : 00000 ==> ok, ow ==> UNALLOC | |
2485 | instr[9,5] = Rn | |
2486 | instr[4,0] = Rd */ | |
2487 | ||
ef0d8ffc | 2488 | uint32_t op2 = INSTR (15, 10); |
2e8cf49e NC |
2489 | |
2490 | NYI_assert (28, 21, 0xD0); | |
2491 | ||
2492 | if (op2 != 0) | |
2493 | HALT_UNALLOC; | |
2494 | ||
ef0d8ffc NC |
2495 | /* Dispatch on size:op:set?. */ |
2496 | switch (INSTR (31, 29)) | |
2e8cf49e NC |
2497 | { |
2498 | case 0: adc32 (cpu); break; | |
2499 | case 1: adcs32 (cpu); break; | |
2500 | case 2: sbc32 (cpu); break; | |
2501 | case 3: sbcs32 (cpu); break; | |
2502 | case 4: adc64 (cpu); break; | |
2503 | case 5: adcs64 (cpu); break; | |
2504 | case 6: sbc64 (cpu); break; | |
2505 | case 7: sbcs64 (cpu); break; | |
2e8cf49e NC |
2506 | } |
2507 | } | |
2508 | ||
2509 | static uint32_t | |
2510 | testConditionCode (sim_cpu *cpu, CondCode cc) | |
2511 | { | |
2512 | /* This should be reduceable to branchless logic | |
2513 | by some careful testing of bits in CC followed | |
2514 | by the requisite masking and combining of bits | |
2515 | from the flag register. | |
2516 | ||
2517 | For now we do it with a switch. */ | |
2518 | int res; | |
2519 | ||
2520 | switch (cc) | |
2521 | { | |
2522 | case EQ: res = IS_SET (Z); break; | |
2523 | case NE: res = IS_CLEAR (Z); break; | |
2524 | case CS: res = IS_SET (C); break; | |
2525 | case CC: res = IS_CLEAR (C); break; | |
2526 | case MI: res = IS_SET (N); break; | |
2527 | case PL: res = IS_CLEAR (N); break; | |
2528 | case VS: res = IS_SET (V); break; | |
2529 | case VC: res = IS_CLEAR (V); break; | |
2530 | case HI: res = IS_SET (C) && IS_CLEAR (Z); break; | |
2531 | case LS: res = IS_CLEAR (C) || IS_SET (Z); break; | |
2532 | case GE: res = IS_SET (N) == IS_SET (V); break; | |
2533 | case LT: res = IS_SET (N) != IS_SET (V); break; | |
2534 | case GT: res = IS_CLEAR (Z) && (IS_SET (N) == IS_SET (V)); break; | |
2535 | case LE: res = IS_SET (Z) || (IS_SET (N) != IS_SET (V)); break; | |
2536 | case AL: | |
2537 | case NV: | |
2538 | default: | |
2539 | res = 1; | |
2540 | break; | |
2541 | } | |
2542 | return res; | |
2543 | } | |
2544 | ||
2545 | static void | |
2546 | CondCompare (sim_cpu *cpu) /* aka: ccmp and ccmn */ | |
2547 | { | |
2548 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
57aa1742 | 2549 | instr[30] = compare with positive (1) or negative value (0) |
2e8cf49e NC |
2550 | instr[29,21] = 1 1101 0010 |
2551 | instr[20,16] = Rm or const | |
2552 | instr[15,12] = cond | |
2553 | instr[11] = compare reg (0) or const (1) | |
2554 | instr[10] = 0 | |
2555 | instr[9,5] = Rn | |
2556 | instr[4] = 0 | |
2557 | instr[3,0] = value for CPSR bits if the comparison does not take place. */ | |
2558 | signed int negate; | |
2559 | unsigned rm; | |
2560 | unsigned rn; | |
2561 | ||
2562 | NYI_assert (29, 21, 0x1d2); | |
2563 | NYI_assert (10, 10, 0); | |
2564 | NYI_assert (4, 4, 0); | |
2565 | ||
2cdad34c | 2566 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 2567 | if (! testConditionCode (cpu, INSTR (15, 12))) |
2e8cf49e | 2568 | { |
ef0d8ffc | 2569 | aarch64_set_CPSR (cpu, INSTR (3, 0)); |
2e8cf49e NC |
2570 | return; |
2571 | } | |
2572 | ||
ef0d8ffc NC |
2573 | negate = INSTR (30, 30) ? 1 : -1; |
2574 | rm = INSTR (20, 16); | |
2575 | rn = INSTR ( 9, 5); | |
2e8cf49e | 2576 | |
ef0d8ffc | 2577 | if (INSTR (31, 31)) |
2e8cf49e | 2578 | { |
ef0d8ffc | 2579 | if (INSTR (11, 11)) |
2e8cf49e NC |
2580 | set_flags_for_sub64 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK), |
2581 | negate * (uint64_t) rm); | |
2582 | else | |
2583 | set_flags_for_sub64 (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK), | |
2584 | negate * aarch64_get_reg_u64 (cpu, rm, SP_OK)); | |
2585 | } | |
2586 | else | |
2587 | { | |
ef0d8ffc | 2588 | if (INSTR (11, 11)) |
2e8cf49e NC |
2589 | set_flags_for_sub32 (cpu, aarch64_get_reg_u32 (cpu, rn, SP_OK), |
2590 | negate * rm); | |
2591 | else | |
2592 | set_flags_for_sub32 (cpu, aarch64_get_reg_u32 (cpu, rn, SP_OK), | |
2593 | negate * aarch64_get_reg_u32 (cpu, rm, SP_OK)); | |
2594 | } | |
2595 | } | |
2596 | ||
2597 | static void | |
2598 | do_vec_MOV_whole_vector (sim_cpu *cpu) | |
2599 | { | |
2600 | /* MOV Vd.T, Vs.T (alias for ORR Vd.T, Vn.T, Vm.T where Vn == Vm) | |
2601 | ||
2602 | instr[31] = 0 | |
2603 | instr[30] = half(0)/full(1) | |
2604 | instr[29,21] = 001110101 | |
2605 | instr[20,16] = Vs | |
2606 | instr[15,10] = 000111 | |
2607 | instr[9,5] = Vs | |
2608 | instr[4,0] = Vd */ | |
2609 | ||
ef0d8ffc NC |
2610 | unsigned vs = INSTR (9, 5); |
2611 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
2612 | |
2613 | NYI_assert (29, 21, 0x075); | |
2614 | NYI_assert (15, 10, 0x07); | |
2615 | ||
ef0d8ffc | 2616 | if (INSTR (20, 16) != vs) |
2e8cf49e NC |
2617 | HALT_NYI; |
2618 | ||
2cdad34c | 2619 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 2620 | if (INSTR (30, 30)) |
2e8cf49e NC |
2621 | aarch64_set_vec_u64 (cpu, vd, 1, aarch64_get_vec_u64 (cpu, vs, 1)); |
2622 | ||
2623 | aarch64_set_vec_u64 (cpu, vd, 0, aarch64_get_vec_u64 (cpu, vs, 0)); | |
2624 | } | |
2625 | ||
2626 | static void | |
152e1e1b | 2627 | do_vec_SMOV_into_scalar (sim_cpu *cpu) |
2e8cf49e NC |
2628 | { |
2629 | /* instr[31] = 0 | |
2630 | instr[30] = word(0)/long(1) | |
2631 | instr[29,21] = 00 1110 000 | |
152e1e1b JW |
2632 | instr[20,16] = element size and index |
2633 | instr[15,10] = 00 0010 11 | |
2e8cf49e NC |
2634 | instr[9,5] = V source |
2635 | instr[4,0] = R dest */ | |
2636 | ||
ef0d8ffc NC |
2637 | unsigned vs = INSTR (9, 5); |
2638 | unsigned rd = INSTR (4, 0); | |
152e1e1b JW |
2639 | unsigned imm5 = INSTR (20, 16); |
2640 | unsigned full = INSTR (30, 30); | |
2641 | int size, index; | |
2e8cf49e NC |
2642 | |
2643 | NYI_assert (29, 21, 0x070); | |
152e1e1b | 2644 | NYI_assert (15, 10, 0x0B); |
2e8cf49e | 2645 | |
2cdad34c | 2646 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
152e1e1b JW |
2647 | |
2648 | if (imm5 & 0x1) | |
2649 | { | |
2650 | size = 0; | |
2651 | index = (imm5 >> 1) & 0xF; | |
2652 | } | |
2653 | else if (imm5 & 0x2) | |
2654 | { | |
2655 | size = 1; | |
2656 | index = (imm5 >> 2) & 0x7; | |
2657 | } | |
2658 | else if (full && (imm5 & 0x4)) | |
2659 | { | |
2660 | size = 2; | |
2661 | index = (imm5 >> 3) & 0x3; | |
2662 | } | |
2663 | else | |
2664 | HALT_UNALLOC; | |
2665 | ||
2666 | switch (size) | |
2e8cf49e | 2667 | { |
152e1e1b JW |
2668 | case 0: |
2669 | if (full) | |
2670 | aarch64_set_reg_s64 (cpu, rd, NO_SP, | |
2671 | aarch64_get_vec_s8 (cpu, vs, index)); | |
2672 | else | |
2673 | aarch64_set_reg_s32 (cpu, rd, NO_SP, | |
2674 | aarch64_get_vec_s8 (cpu, vs, index)); | |
2e8cf49e NC |
2675 | break; |
2676 | ||
152e1e1b JW |
2677 | case 1: |
2678 | if (full) | |
2679 | aarch64_set_reg_s64 (cpu, rd, NO_SP, | |
2680 | aarch64_get_vec_s16 (cpu, vs, index)); | |
2681 | else | |
2682 | aarch64_set_reg_s32 (cpu, rd, NO_SP, | |
2683 | aarch64_get_vec_s16 (cpu, vs, index)); | |
2e8cf49e NC |
2684 | break; |
2685 | ||
152e1e1b JW |
2686 | case 2: |
2687 | aarch64_set_reg_s64 (cpu, rd, NO_SP, | |
2688 | aarch64_get_vec_s32 (cpu, vs, index)); | |
2e8cf49e NC |
2689 | break; |
2690 | ||
2691 | default: | |
152e1e1b JW |
2692 | HALT_UNALLOC; |
2693 | } | |
2694 | } | |
2695 | ||
2696 | static void | |
2697 | do_vec_UMOV_into_scalar (sim_cpu *cpu) | |
2698 | { | |
2699 | /* instr[31] = 0 | |
2700 | instr[30] = word(0)/long(1) | |
2701 | instr[29,21] = 00 1110 000 | |
2702 | instr[20,16] = element size and index | |
2703 | instr[15,10] = 00 0011 11 | |
2704 | instr[9,5] = V source | |
2705 | instr[4,0] = R dest */ | |
2706 | ||
2707 | unsigned vs = INSTR (9, 5); | |
2708 | unsigned rd = INSTR (4, 0); | |
2709 | unsigned imm5 = INSTR (20, 16); | |
2710 | unsigned full = INSTR (30, 30); | |
2711 | int size, index; | |
2712 | ||
2713 | NYI_assert (29, 21, 0x070); | |
2714 | NYI_assert (15, 10, 0x0F); | |
2715 | ||
2716 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
2717 | ||
2718 | if (!full) | |
2719 | { | |
2720 | if (imm5 & 0x1) | |
2721 | { | |
2722 | size = 0; | |
2723 | index = (imm5 >> 1) & 0xF; | |
2724 | } | |
2725 | else if (imm5 & 0x2) | |
2726 | { | |
2727 | size = 1; | |
2728 | index = (imm5 >> 2) & 0x7; | |
2729 | } | |
2730 | else if (imm5 & 0x4) | |
2731 | { | |
2732 | size = 2; | |
2733 | index = (imm5 >> 3) & 0x3; | |
2734 | } | |
2735 | else | |
2736 | HALT_UNALLOC; | |
2737 | } | |
2738 | else if (imm5 & 0x8) | |
2739 | { | |
2740 | size = 3; | |
2741 | index = (imm5 >> 4) & 0x1; | |
2742 | } | |
2743 | else | |
2744 | HALT_UNALLOC; | |
2745 | ||
2746 | switch (size) | |
2747 | { | |
2748 | case 0: | |
2749 | aarch64_set_reg_u32 (cpu, rd, NO_SP, | |
2750 | aarch64_get_vec_u8 (cpu, vs, index)); | |
2751 | break; | |
2752 | ||
2753 | case 1: | |
2754 | aarch64_set_reg_u32 (cpu, rd, NO_SP, | |
2755 | aarch64_get_vec_u16 (cpu, vs, index)); | |
2756 | break; | |
2757 | ||
2758 | case 2: | |
2759 | aarch64_set_reg_u32 (cpu, rd, NO_SP, | |
2760 | aarch64_get_vec_u32 (cpu, vs, index)); | |
2761 | break; | |
2762 | ||
2763 | case 3: | |
2764 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
2765 | aarch64_get_vec_u64 (cpu, vs, index)); | |
2766 | break; | |
2767 | ||
2768 | default: | |
2769 | HALT_UNALLOC; | |
2e8cf49e NC |
2770 | } |
2771 | } | |
2772 | ||
2773 | static void | |
2774 | do_vec_INS (sim_cpu *cpu) | |
2775 | { | |
2776 | /* instr[31,21] = 01001110000 | |
2777 | instr[20,16] = element size and index | |
2778 | instr[15,10] = 000111 | |
2779 | instr[9,5] = W source | |
2780 | instr[4,0] = V dest */ | |
2781 | ||
2782 | int index; | |
ef0d8ffc NC |
2783 | unsigned rs = INSTR (9, 5); |
2784 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
2785 | |
2786 | NYI_assert (31, 21, 0x270); | |
2787 | NYI_assert (15, 10, 0x07); | |
2788 | ||
2cdad34c | 2789 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 2790 | if (INSTR (16, 16)) |
2e8cf49e | 2791 | { |
ef0d8ffc | 2792 | index = INSTR (20, 17); |
2e8cf49e NC |
2793 | aarch64_set_vec_u8 (cpu, vd, index, |
2794 | aarch64_get_reg_u8 (cpu, rs, NO_SP)); | |
2795 | } | |
ef0d8ffc | 2796 | else if (INSTR (17, 17)) |
2e8cf49e | 2797 | { |
ef0d8ffc | 2798 | index = INSTR (20, 18); |
2e8cf49e NC |
2799 | aarch64_set_vec_u16 (cpu, vd, index, |
2800 | aarch64_get_reg_u16 (cpu, rs, NO_SP)); | |
2801 | } | |
ef0d8ffc | 2802 | else if (INSTR (18, 18)) |
2e8cf49e | 2803 | { |
ef0d8ffc | 2804 | index = INSTR (20, 19); |
2e8cf49e NC |
2805 | aarch64_set_vec_u32 (cpu, vd, index, |
2806 | aarch64_get_reg_u32 (cpu, rs, NO_SP)); | |
2807 | } | |
ef0d8ffc | 2808 | else if (INSTR (19, 19)) |
2e8cf49e | 2809 | { |
ef0d8ffc | 2810 | index = INSTR (20, 20); |
2e8cf49e NC |
2811 | aarch64_set_vec_u64 (cpu, vd, index, |
2812 | aarch64_get_reg_u64 (cpu, rs, NO_SP)); | |
2813 | } | |
2814 | else | |
2815 | HALT_NYI; | |
2816 | } | |
2817 | ||
2818 | static void | |
2819 | do_vec_DUP_vector_into_vector (sim_cpu *cpu) | |
2820 | { | |
2821 | /* instr[31] = 0 | |
2822 | instr[30] = half(0)/full(1) | |
2823 | instr[29,21] = 00 1110 000 | |
2824 | instr[20,16] = element size and index | |
2825 | instr[15,10] = 0000 01 | |
2826 | instr[9,5] = V source | |
2827 | instr[4,0] = V dest. */ | |
2828 | ||
ef0d8ffc NC |
2829 | unsigned full = INSTR (30, 30); |
2830 | unsigned vs = INSTR (9, 5); | |
2831 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
2832 | int i, index; |
2833 | ||
2834 | NYI_assert (29, 21, 0x070); | |
2835 | NYI_assert (15, 10, 0x01); | |
2836 | ||
2cdad34c | 2837 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 2838 | if (INSTR (16, 16)) |
2e8cf49e | 2839 | { |
ef0d8ffc | 2840 | index = INSTR (20, 17); |
2e8cf49e NC |
2841 | |
2842 | for (i = 0; i < (full ? 16 : 8); i++) | |
2843 | aarch64_set_vec_u8 (cpu, vd, i, aarch64_get_vec_u8 (cpu, vs, index)); | |
2844 | } | |
ef0d8ffc | 2845 | else if (INSTR (17, 17)) |
2e8cf49e | 2846 | { |
ef0d8ffc | 2847 | index = INSTR (20, 18); |
2e8cf49e NC |
2848 | |
2849 | for (i = 0; i < (full ? 8 : 4); i++) | |
2850 | aarch64_set_vec_u16 (cpu, vd, i, aarch64_get_vec_u16 (cpu, vs, index)); | |
2851 | } | |
ef0d8ffc | 2852 | else if (INSTR (18, 18)) |
2e8cf49e | 2853 | { |
ef0d8ffc | 2854 | index = INSTR (20, 19); |
2e8cf49e NC |
2855 | |
2856 | for (i = 0; i < (full ? 4 : 2); i++) | |
2857 | aarch64_set_vec_u32 (cpu, vd, i, aarch64_get_vec_u32 (cpu, vs, index)); | |
2858 | } | |
2859 | else | |
2860 | { | |
ef0d8ffc | 2861 | if (INSTR (19, 19) == 0) |
2e8cf49e NC |
2862 | HALT_UNALLOC; |
2863 | ||
2864 | if (! full) | |
2865 | HALT_UNALLOC; | |
2866 | ||
ef0d8ffc | 2867 | index = INSTR (20, 20); |
2e8cf49e NC |
2868 | |
2869 | for (i = 0; i < 2; i++) | |
2870 | aarch64_set_vec_u64 (cpu, vd, i, aarch64_get_vec_u64 (cpu, vs, index)); | |
2871 | } | |
2872 | } | |
2873 | ||
2874 | static void | |
2875 | do_vec_TBL (sim_cpu *cpu) | |
2876 | { | |
2877 | /* instr[31] = 0 | |
2878 | instr[30] = half(0)/full(1) | |
2879 | instr[29,21] = 00 1110 000 | |
2880 | instr[20,16] = Vm | |
2881 | instr[15] = 0 | |
2882 | instr[14,13] = vec length | |
2883 | instr[12,10] = 000 | |
2884 | instr[9,5] = V start | |
2885 | instr[4,0] = V dest */ | |
2886 | ||
ef0d8ffc NC |
2887 | int full = INSTR (30, 30); |
2888 | int len = INSTR (14, 13) + 1; | |
2889 | unsigned vm = INSTR (20, 16); | |
2890 | unsigned vn = INSTR (9, 5); | |
2891 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
2892 | unsigned i; |
2893 | ||
2894 | NYI_assert (29, 21, 0x070); | |
2895 | NYI_assert (12, 10, 0); | |
2896 | ||
2cdad34c | 2897 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
2898 | for (i = 0; i < (full ? 16 : 8); i++) |
2899 | { | |
2900 | unsigned int selector = aarch64_get_vec_u8 (cpu, vm, i); | |
2901 | uint8_t val; | |
2902 | ||
2903 | if (selector < 16) | |
2904 | val = aarch64_get_vec_u8 (cpu, vn, selector); | |
2905 | else if (selector < 32) | |
2906 | val = len < 2 ? 0 : aarch64_get_vec_u8 (cpu, vn + 1, selector - 16); | |
2907 | else if (selector < 48) | |
2908 | val = len < 3 ? 0 : aarch64_get_vec_u8 (cpu, vn + 2, selector - 32); | |
2909 | else if (selector < 64) | |
2910 | val = len < 4 ? 0 : aarch64_get_vec_u8 (cpu, vn + 3, selector - 48); | |
2911 | else | |
2912 | val = 0; | |
2913 | ||
2914 | aarch64_set_vec_u8 (cpu, vd, i, val); | |
2915 | } | |
2916 | } | |
2917 | ||
2918 | static void | |
2919 | do_vec_TRN (sim_cpu *cpu) | |
2920 | { | |
2921 | /* instr[31] = 0 | |
2922 | instr[30] = half(0)/full(1) | |
2923 | instr[29,24] = 00 1110 | |
2924 | instr[23,22] = size | |
2925 | instr[21] = 0 | |
2926 | instr[20,16] = Vm | |
2927 | instr[15] = 0 | |
2928 | instr[14] = TRN1 (0) / TRN2 (1) | |
2929 | instr[13,10] = 1010 | |
2930 | instr[9,5] = V source | |
2931 | instr[4,0] = V dest. */ | |
2932 | ||
ef0d8ffc NC |
2933 | int full = INSTR (30, 30); |
2934 | int second = INSTR (14, 14); | |
2935 | unsigned vm = INSTR (20, 16); | |
2936 | unsigned vn = INSTR (9, 5); | |
2937 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
2938 | unsigned i; |
2939 | ||
2940 | NYI_assert (29, 24, 0x0E); | |
2941 | NYI_assert (13, 10, 0xA); | |
2942 | ||
2cdad34c | 2943 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 2944 | switch (INSTR (23, 22)) |
2e8cf49e NC |
2945 | { |
2946 | case 0: | |
2947 | for (i = 0; i < (full ? 8 : 4); i++) | |
2948 | { | |
2949 | aarch64_set_vec_u8 | |
2950 | (cpu, vd, i * 2, | |
2951 | aarch64_get_vec_u8 (cpu, second ? vm : vn, i * 2)); | |
2952 | aarch64_set_vec_u8 | |
2953 | (cpu, vd, 1 * 2 + 1, | |
2954 | aarch64_get_vec_u8 (cpu, second ? vn : vm, i * 2 + 1)); | |
2955 | } | |
2956 | break; | |
2957 | ||
2958 | case 1: | |
2959 | for (i = 0; i < (full ? 4 : 2); i++) | |
2960 | { | |
2961 | aarch64_set_vec_u16 | |
2962 | (cpu, vd, i * 2, | |
2963 | aarch64_get_vec_u16 (cpu, second ? vm : vn, i * 2)); | |
2964 | aarch64_set_vec_u16 | |
2965 | (cpu, vd, 1 * 2 + 1, | |
2966 | aarch64_get_vec_u16 (cpu, second ? vn : vm, i * 2 + 1)); | |
2967 | } | |
2968 | break; | |
2969 | ||
2970 | case 2: | |
2971 | aarch64_set_vec_u32 | |
2972 | (cpu, vd, 0, aarch64_get_vec_u32 (cpu, second ? vm : vn, 0)); | |
2973 | aarch64_set_vec_u32 | |
2974 | (cpu, vd, 1, aarch64_get_vec_u32 (cpu, second ? vn : vm, 1)); | |
2975 | aarch64_set_vec_u32 | |
2976 | (cpu, vd, 2, aarch64_get_vec_u32 (cpu, second ? vm : vn, 2)); | |
2977 | aarch64_set_vec_u32 | |
2978 | (cpu, vd, 3, aarch64_get_vec_u32 (cpu, second ? vn : vm, 3)); | |
2979 | break; | |
2980 | ||
2981 | case 3: | |
2982 | if (! full) | |
2983 | HALT_UNALLOC; | |
2984 | ||
2985 | aarch64_set_vec_u64 (cpu, vd, 0, | |
2986 | aarch64_get_vec_u64 (cpu, second ? vm : vn, 0)); | |
2987 | aarch64_set_vec_u64 (cpu, vd, 1, | |
2988 | aarch64_get_vec_u64 (cpu, second ? vn : vm, 1)); | |
2989 | break; | |
2e8cf49e NC |
2990 | } |
2991 | } | |
2992 | ||
2993 | static void | |
2994 | do_vec_DUP_scalar_into_vector (sim_cpu *cpu) | |
2995 | { | |
2996 | /* instr[31] = 0 | |
2997 | instr[30] = 0=> zero top 64-bits, 1=> duplicate into top 64-bits | |
2998 | [must be 1 for 64-bit xfer] | |
2999 | instr[29,20] = 00 1110 0000 | |
3000 | instr[19,16] = element size: 0001=> 8-bits, 0010=> 16-bits, | |
3001 | 0100=> 32-bits. 1000=>64-bits | |
3002 | instr[15,10] = 0000 11 | |
3003 | instr[9,5] = W source | |
3004 | instr[4,0] = V dest. */ | |
3005 | ||
3006 | unsigned i; | |
ef0d8ffc NC |
3007 | unsigned Vd = INSTR (4, 0); |
3008 | unsigned Rs = INSTR (9, 5); | |
3009 | int both = INSTR (30, 30); | |
2e8cf49e NC |
3010 | |
3011 | NYI_assert (29, 20, 0x0E0); | |
3012 | NYI_assert (15, 10, 0x03); | |
3013 | ||
2cdad34c | 3014 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3015 | switch (INSTR (19, 16)) |
2e8cf49e NC |
3016 | { |
3017 | case 1: | |
3018 | for (i = 0; i < (both ? 16 : 8); i++) | |
3019 | aarch64_set_vec_u8 (cpu, Vd, i, aarch64_get_reg_u8 (cpu, Rs, NO_SP)); | |
3020 | break; | |
3021 | ||
3022 | case 2: | |
3023 | for (i = 0; i < (both ? 8 : 4); i++) | |
3024 | aarch64_set_vec_u16 (cpu, Vd, i, aarch64_get_reg_u16 (cpu, Rs, NO_SP)); | |
3025 | break; | |
3026 | ||
3027 | case 4: | |
3028 | for (i = 0; i < (both ? 4 : 2); i++) | |
3029 | aarch64_set_vec_u32 (cpu, Vd, i, aarch64_get_reg_u32 (cpu, Rs, NO_SP)); | |
3030 | break; | |
3031 | ||
3032 | case 8: | |
3033 | if (!both) | |
3034 | HALT_NYI; | |
3035 | aarch64_set_vec_u64 (cpu, Vd, 0, aarch64_get_reg_u64 (cpu, Rs, NO_SP)); | |
3036 | aarch64_set_vec_u64 (cpu, Vd, 1, aarch64_get_reg_u64 (cpu, Rs, NO_SP)); | |
3037 | break; | |
3038 | ||
3039 | default: | |
3040 | HALT_NYI; | |
3041 | } | |
3042 | } | |
3043 | ||
3044 | static void | |
3045 | do_vec_UZP (sim_cpu *cpu) | |
3046 | { | |
3047 | /* instr[31] = 0 | |
3048 | instr[30] = half(0)/full(1) | |
3049 | instr[29,24] = 00 1110 | |
3050 | instr[23,22] = size: byte(00), half(01), word (10), long (11) | |
3051 | instr[21] = 0 | |
3052 | instr[20,16] = Vm | |
3053 | instr[15] = 0 | |
3054 | instr[14] = lower (0) / upper (1) | |
3055 | instr[13,10] = 0110 | |
3056 | instr[9,5] = Vn | |
3057 | instr[4,0] = Vd. */ | |
3058 | ||
ef0d8ffc NC |
3059 | int full = INSTR (30, 30); |
3060 | int upper = INSTR (14, 14); | |
2e8cf49e | 3061 | |
ef0d8ffc NC |
3062 | unsigned vm = INSTR (20, 16); |
3063 | unsigned vn = INSTR (9, 5); | |
3064 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
3065 | |
3066 | uint64_t val_m1 = aarch64_get_vec_u64 (cpu, vm, 0); | |
3067 | uint64_t val_m2 = aarch64_get_vec_u64 (cpu, vm, 1); | |
3068 | uint64_t val_n1 = aarch64_get_vec_u64 (cpu, vn, 0); | |
3069 | uint64_t val_n2 = aarch64_get_vec_u64 (cpu, vn, 1); | |
3070 | ||
a4fb5981 JW |
3071 | uint64_t val1; |
3072 | uint64_t val2; | |
2e8cf49e | 3073 | |
a4fb5981 | 3074 | uint64_t input2 = full ? val_n2 : val_m1; |
2e8cf49e NC |
3075 | |
3076 | NYI_assert (29, 24, 0x0E); | |
3077 | NYI_assert (21, 21, 0); | |
3078 | NYI_assert (15, 15, 0); | |
3079 | NYI_assert (13, 10, 6); | |
3080 | ||
2cdad34c | 3081 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
a4fb5981 | 3082 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3083 | { |
3084 | case 0: | |
a4fb5981 JW |
3085 | val1 = (val_n1 >> (upper * 8)) & 0xFFULL; |
3086 | val1 |= (val_n1 >> ((upper * 8) + 8)) & 0xFF00ULL; | |
3087 | val1 |= (val_n1 >> ((upper * 8) + 16)) & 0xFF0000ULL; | |
3088 | val1 |= (val_n1 >> ((upper * 8) + 24)) & 0xFF000000ULL; | |
3089 | ||
3090 | val1 |= (input2 << (32 - (upper * 8))) & 0xFF00000000ULL; | |
3091 | val1 |= (input2 << (24 - (upper * 8))) & 0xFF0000000000ULL; | |
3092 | val1 |= (input2 << (16 - (upper * 8))) & 0xFF000000000000ULL; | |
3093 | val1 |= (input2 << (8 - (upper * 8))) & 0xFF00000000000000ULL; | |
3094 | ||
3095 | if (full) | |
2e8cf49e | 3096 | { |
a4fb5981 JW |
3097 | val2 = (val_m1 >> (upper * 8)) & 0xFFULL; |
3098 | val2 |= (val_m1 >> ((upper * 8) + 8)) & 0xFF00ULL; | |
3099 | val2 |= (val_m1 >> ((upper * 8) + 16)) & 0xFF0000ULL; | |
3100 | val2 |= (val_m1 >> ((upper * 8) + 24)) & 0xFF000000ULL; | |
3101 | ||
3102 | val2 |= (val_m2 << (32 - (upper * 8))) & 0xFF00000000ULL; | |
3103 | val2 |= (val_m2 << (24 - (upper * 8))) & 0xFF0000000000ULL; | |
3104 | val2 |= (val_m2 << (16 - (upper * 8))) & 0xFF000000000000ULL; | |
3105 | val2 |= (val_m2 << (8 - (upper * 8))) & 0xFF00000000000000ULL; | |
2e8cf49e NC |
3106 | } |
3107 | break; | |
3108 | ||
3109 | case 1: | |
a4fb5981 JW |
3110 | val1 = (val_n1 >> (upper * 16)) & 0xFFFFULL; |
3111 | val1 |= (val_n1 >> ((upper * 16) + 16)) & 0xFFFF0000ULL; | |
3112 | ||
3113 | val1 |= (input2 << (32 - (upper * 16))) & 0xFFFF00000000ULL;; | |
3114 | val1 |= (input2 << (16 - (upper * 16))) & 0xFFFF000000000000ULL; | |
3115 | ||
3116 | if (full) | |
2e8cf49e | 3117 | { |
a4fb5981 JW |
3118 | val2 = (val_m1 >> (upper * 16)) & 0xFFFFULL; |
3119 | val2 |= (val_m1 >> ((upper * 16) + 16)) & 0xFFFF0000ULL; | |
3120 | ||
3121 | val2 |= (val_m2 << (32 - (upper * 16))) & 0xFFFF00000000ULL; | |
3122 | val2 |= (val_m2 << (16 - (upper * 16))) & 0xFFFF000000000000ULL; | |
2e8cf49e NC |
3123 | } |
3124 | break; | |
3125 | ||
3126 | case 2: | |
a4fb5981 JW |
3127 | val1 = (val_n1 >> (upper * 32)) & 0xFFFFFFFF; |
3128 | val1 |= (input2 << (32 - (upper * 32))) & 0xFFFFFFFF00000000ULL; | |
3129 | ||
3130 | if (full) | |
3131 | { | |
3132 | val2 = (val_m1 >> (upper * 32)) & 0xFFFFFFFF; | |
3133 | val2 |= (val_m2 << (32 - (upper * 32))) & 0xFFFFFFFF00000000ULL; | |
3134 | } | |
3135 | break; | |
2e8cf49e NC |
3136 | |
3137 | case 3: | |
a4fb5981 JW |
3138 | if (! full) |
3139 | HALT_UNALLOC; | |
3140 | ||
3141 | val1 = upper ? val_n2 : val_n1; | |
3142 | val2 = upper ? val_m2 : val_m1; | |
3143 | break; | |
2e8cf49e NC |
3144 | } |
3145 | ||
3146 | aarch64_set_vec_u64 (cpu, vd, 0, val1); | |
3147 | if (full) | |
3148 | aarch64_set_vec_u64 (cpu, vd, 1, val2); | |
3149 | } | |
3150 | ||
3151 | static void | |
3152 | do_vec_ZIP (sim_cpu *cpu) | |
3153 | { | |
3154 | /* instr[31] = 0 | |
3155 | instr[30] = half(0)/full(1) | |
3156 | instr[29,24] = 00 1110 | |
3157 | instr[23,22] = size: byte(00), hald(01), word (10), long (11) | |
3158 | instr[21] = 0 | |
3159 | instr[20,16] = Vm | |
3160 | instr[15] = 0 | |
3161 | instr[14] = lower (0) / upper (1) | |
3162 | instr[13,10] = 1110 | |
3163 | instr[9,5] = Vn | |
3164 | instr[4,0] = Vd. */ | |
3165 | ||
ef0d8ffc NC |
3166 | int full = INSTR (30, 30); |
3167 | int upper = INSTR (14, 14); | |
2e8cf49e | 3168 | |
ef0d8ffc NC |
3169 | unsigned vm = INSTR (20, 16); |
3170 | unsigned vn = INSTR (9, 5); | |
3171 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
3172 | |
3173 | uint64_t val_m1 = aarch64_get_vec_u64 (cpu, vm, 0); | |
3174 | uint64_t val_m2 = aarch64_get_vec_u64 (cpu, vm, 1); | |
3175 | uint64_t val_n1 = aarch64_get_vec_u64 (cpu, vn, 0); | |
3176 | uint64_t val_n2 = aarch64_get_vec_u64 (cpu, vn, 1); | |
3177 | ||
3178 | uint64_t val1 = 0; | |
3179 | uint64_t val2 = 0; | |
3180 | ||
3181 | uint64_t input1 = upper ? val_n1 : val_m1; | |
3182 | uint64_t input2 = upper ? val_n2 : val_m2; | |
3183 | ||
3184 | NYI_assert (29, 24, 0x0E); | |
3185 | NYI_assert (21, 21, 0); | |
3186 | NYI_assert (15, 15, 0); | |
3187 | NYI_assert (13, 10, 0xE); | |
3188 | ||
2cdad34c | 3189 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3190 | switch (INSTR (23, 23)) |
2e8cf49e NC |
3191 | { |
3192 | case 0: | |
3193 | val1 = | |
3194 | ((input1 << 0) & (0xFF << 0)) | |
3195 | | ((input2 << 8) & (0xFF << 8)) | |
3196 | | ((input1 << 8) & (0xFF << 16)) | |
3197 | | ((input2 << 16) & (0xFF << 24)) | |
3198 | | ((input1 << 16) & (0xFFULL << 32)) | |
3199 | | ((input2 << 24) & (0xFFULL << 40)) | |
3200 | | ((input1 << 24) & (0xFFULL << 48)) | |
3201 | | ((input2 << 32) & (0xFFULL << 56)); | |
3202 | ||
3203 | val2 = | |
3204 | ((input1 >> 32) & (0xFF << 0)) | |
3205 | | ((input2 >> 24) & (0xFF << 8)) | |
3206 | | ((input1 >> 24) & (0xFF << 16)) | |
3207 | | ((input2 >> 16) & (0xFF << 24)) | |
3208 | | ((input1 >> 16) & (0xFFULL << 32)) | |
3209 | | ((input2 >> 8) & (0xFFULL << 40)) | |
3210 | | ((input1 >> 8) & (0xFFULL << 48)) | |
3211 | | ((input2 >> 0) & (0xFFULL << 56)); | |
3212 | break; | |
3213 | ||
3214 | case 1: | |
3215 | val1 = | |
3216 | ((input1 << 0) & (0xFFFF << 0)) | |
3217 | | ((input2 << 16) & (0xFFFF << 16)) | |
3218 | | ((input1 << 16) & (0xFFFFULL << 32)) | |
3219 | | ((input2 << 32) & (0xFFFFULL << 48)); | |
3220 | ||
3221 | val2 = | |
3222 | ((input1 >> 32) & (0xFFFF << 0)) | |
3223 | | ((input2 >> 16) & (0xFFFF << 16)) | |
3224 | | ((input1 >> 16) & (0xFFFFULL << 32)) | |
3225 | | ((input2 >> 0) & (0xFFFFULL << 48)); | |
3226 | break; | |
3227 | ||
3228 | case 2: | |
3229 | val1 = (input1 & 0xFFFFFFFFULL) | (input2 << 32); | |
3230 | val2 = (input2 & 0xFFFFFFFFULL) | (input1 << 32); | |
3231 | break; | |
3232 | ||
3233 | case 3: | |
3234 | val1 = input1; | |
3235 | val2 = input2; | |
3236 | break; | |
3237 | } | |
3238 | ||
3239 | aarch64_set_vec_u64 (cpu, vd, 0, val1); | |
3240 | if (full) | |
3241 | aarch64_set_vec_u64 (cpu, vd, 1, val2); | |
3242 | } | |
3243 | ||
3244 | /* Floating point immediates are encoded in 8 bits. | |
3245 | fpimm[7] = sign bit. | |
3246 | fpimm[6:4] = signed exponent. | |
3247 | fpimm[3:0] = fraction (assuming leading 1). | |
3248 | i.e. F = s * 1.f * 2^(e - b). */ | |
3249 | ||
3250 | static float | |
3251 | fp_immediate_for_encoding_32 (uint32_t imm8) | |
3252 | { | |
3253 | float u; | |
3254 | uint32_t s, e, f, i; | |
3255 | ||
3256 | s = (imm8 >> 7) & 0x1; | |
3257 | e = (imm8 >> 4) & 0x7; | |
3258 | f = imm8 & 0xf; | |
3259 | ||
3260 | /* The fp value is s * n/16 * 2r where n is 16+e. */ | |
3261 | u = (16.0 + f) / 16.0; | |
3262 | ||
3263 | /* N.B. exponent is signed. */ | |
3264 | if (e < 4) | |
3265 | { | |
3266 | int epos = e; | |
3267 | ||
3268 | for (i = 0; i <= epos; i++) | |
3269 | u *= 2.0; | |
3270 | } | |
3271 | else | |
3272 | { | |
3273 | int eneg = 7 - e; | |
3274 | ||
3275 | for (i = 0; i < eneg; i++) | |
3276 | u /= 2.0; | |
3277 | } | |
3278 | ||
3279 | if (s) | |
3280 | u = - u; | |
3281 | ||
3282 | return u; | |
3283 | } | |
3284 | ||
3285 | static double | |
3286 | fp_immediate_for_encoding_64 (uint32_t imm8) | |
3287 | { | |
3288 | double u; | |
3289 | uint32_t s, e, f, i; | |
3290 | ||
3291 | s = (imm8 >> 7) & 0x1; | |
3292 | e = (imm8 >> 4) & 0x7; | |
3293 | f = imm8 & 0xf; | |
3294 | ||
3295 | /* The fp value is s * n/16 * 2r where n is 16+e. */ | |
3296 | u = (16.0 + f) / 16.0; | |
3297 | ||
3298 | /* N.B. exponent is signed. */ | |
3299 | if (e < 4) | |
3300 | { | |
3301 | int epos = e; | |
3302 | ||
3303 | for (i = 0; i <= epos; i++) | |
3304 | u *= 2.0; | |
3305 | } | |
3306 | else | |
3307 | { | |
3308 | int eneg = 7 - e; | |
3309 | ||
3310 | for (i = 0; i < eneg; i++) | |
3311 | u /= 2.0; | |
3312 | } | |
3313 | ||
3314 | if (s) | |
3315 | u = - u; | |
3316 | ||
3317 | return u; | |
3318 | } | |
3319 | ||
3320 | static void | |
3321 | do_vec_MOV_immediate (sim_cpu *cpu) | |
3322 | { | |
3323 | /* instr[31] = 0 | |
3324 | instr[30] = full/half selector | |
3325 | instr[29,19] = 00111100000 | |
3326 | instr[18,16] = high 3 bits of uimm8 | |
3327 | instr[15,12] = size & shift: | |
3328 | 0000 => 32-bit | |
3329 | 0010 => 32-bit + LSL#8 | |
3330 | 0100 => 32-bit + LSL#16 | |
3331 | 0110 => 32-bit + LSL#24 | |
3332 | 1010 => 16-bit + LSL#8 | |
3333 | 1000 => 16-bit | |
3334 | 1101 => 32-bit + MSL#16 | |
3335 | 1100 => 32-bit + MSL#8 | |
3336 | 1110 => 8-bit | |
3337 | 1111 => double | |
3338 | instr[11,10] = 01 | |
3339 | instr[9,5] = low 5-bits of uimm8 | |
3340 | instr[4,0] = Vd. */ | |
3341 | ||
ef0d8ffc NC |
3342 | int full = INSTR (30, 30); |
3343 | unsigned vd = INSTR (4, 0); | |
7517e550 | 3344 | unsigned val = (INSTR (18, 16) << 5) | INSTR (9, 5); |
2e8cf49e NC |
3345 | unsigned i; |
3346 | ||
3347 | NYI_assert (29, 19, 0x1E0); | |
3348 | NYI_assert (11, 10, 1); | |
3349 | ||
2cdad34c | 3350 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3351 | switch (INSTR (15, 12)) |
2e8cf49e NC |
3352 | { |
3353 | case 0x0: /* 32-bit, no shift. */ | |
3354 | case 0x2: /* 32-bit, shift by 8. */ | |
3355 | case 0x4: /* 32-bit, shift by 16. */ | |
3356 | case 0x6: /* 32-bit, shift by 24. */ | |
ef0d8ffc | 3357 | val <<= (8 * INSTR (14, 13)); |
2e8cf49e NC |
3358 | for (i = 0; i < (full ? 4 : 2); i++) |
3359 | aarch64_set_vec_u32 (cpu, vd, i, val); | |
3360 | break; | |
3361 | ||
3362 | case 0xa: /* 16-bit, shift by 8. */ | |
3363 | val <<= 8; | |
3364 | /* Fall through. */ | |
3365 | case 0x8: /* 16-bit, no shift. */ | |
3366 | for (i = 0; i < (full ? 8 : 4); i++) | |
3367 | aarch64_set_vec_u16 (cpu, vd, i, val); | |
c0386d4d JW |
3368 | break; |
3369 | ||
2e8cf49e NC |
3370 | case 0xd: /* 32-bit, mask shift by 16. */ |
3371 | val <<= 8; | |
3372 | val |= 0xFF; | |
3373 | /* Fall through. */ | |
3374 | case 0xc: /* 32-bit, mask shift by 8. */ | |
3375 | val <<= 8; | |
3376 | val |= 0xFF; | |
3377 | for (i = 0; i < (full ? 4 : 2); i++) | |
3378 | aarch64_set_vec_u32 (cpu, vd, i, val); | |
3379 | break; | |
3380 | ||
3381 | case 0xe: /* 8-bit, no shift. */ | |
3382 | for (i = 0; i < (full ? 16 : 8); i++) | |
3383 | aarch64_set_vec_u8 (cpu, vd, i, val); | |
3384 | break; | |
3385 | ||
3386 | case 0xf: /* FMOV Vs.{2|4}S, #fpimm. */ | |
3387 | { | |
3388 | float u = fp_immediate_for_encoding_32 (val); | |
3389 | for (i = 0; i < (full ? 4 : 2); i++) | |
3390 | aarch64_set_vec_float (cpu, vd, i, u); | |
3391 | break; | |
3392 | } | |
3393 | ||
3394 | default: | |
3395 | HALT_NYI; | |
3396 | } | |
3397 | } | |
3398 | ||
3399 | static void | |
3400 | do_vec_MVNI (sim_cpu *cpu) | |
3401 | { | |
3402 | /* instr[31] = 0 | |
3403 | instr[30] = full/half selector | |
3404 | instr[29,19] = 10111100000 | |
3405 | instr[18,16] = high 3 bits of uimm8 | |
3406 | instr[15,12] = selector | |
3407 | instr[11,10] = 01 | |
3408 | instr[9,5] = low 5-bits of uimm8 | |
3409 | instr[4,0] = Vd. */ | |
3410 | ||
ef0d8ffc NC |
3411 | int full = INSTR (30, 30); |
3412 | unsigned vd = INSTR (4, 0); | |
7517e550 | 3413 | unsigned val = (INSTR (18, 16) << 5) | INSTR (9, 5); |
2e8cf49e NC |
3414 | unsigned i; |
3415 | ||
3416 | NYI_assert (29, 19, 0x5E0); | |
3417 | NYI_assert (11, 10, 1); | |
3418 | ||
2cdad34c | 3419 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3420 | switch (INSTR (15, 12)) |
2e8cf49e NC |
3421 | { |
3422 | case 0x0: /* 32-bit, no shift. */ | |
3423 | case 0x2: /* 32-bit, shift by 8. */ | |
3424 | case 0x4: /* 32-bit, shift by 16. */ | |
3425 | case 0x6: /* 32-bit, shift by 24. */ | |
ef0d8ffc | 3426 | val <<= (8 * INSTR (14, 13)); |
2e8cf49e NC |
3427 | val = ~ val; |
3428 | for (i = 0; i < (full ? 4 : 2); i++) | |
3429 | aarch64_set_vec_u32 (cpu, vd, i, val); | |
3430 | return; | |
3431 | ||
3432 | case 0xa: /* 16-bit, 8 bit shift. */ | |
3433 | val <<= 8; | |
3434 | case 0x8: /* 16-bit, no shift. */ | |
3435 | val = ~ val; | |
3436 | for (i = 0; i < (full ? 8 : 4); i++) | |
3437 | aarch64_set_vec_u16 (cpu, vd, i, val); | |
3438 | return; | |
3439 | ||
3440 | case 0xd: /* 32-bit, mask shift by 16. */ | |
3441 | val <<= 8; | |
3442 | val |= 0xFF; | |
3443 | case 0xc: /* 32-bit, mask shift by 8. */ | |
3444 | val <<= 8; | |
3445 | val |= 0xFF; | |
3446 | val = ~ val; | |
3447 | for (i = 0; i < (full ? 4 : 2); i++) | |
3448 | aarch64_set_vec_u32 (cpu, vd, i, val); | |
3449 | return; | |
3450 | ||
3451 | case 0xE: /* MOVI Dn, #mask64 */ | |
3452 | { | |
3453 | uint64_t mask = 0; | |
3454 | ||
3455 | for (i = 0; i < 8; i++) | |
3456 | if (val & (1 << i)) | |
7517e550 | 3457 | mask |= (0xFFUL << (i * 8)); |
2e8cf49e | 3458 | aarch64_set_vec_u64 (cpu, vd, 0, mask); |
7517e550 | 3459 | aarch64_set_vec_u64 (cpu, vd, 1, mask); |
2e8cf49e NC |
3460 | return; |
3461 | } | |
3462 | ||
3463 | case 0xf: /* FMOV Vd.2D, #fpimm. */ | |
3464 | { | |
3465 | double u = fp_immediate_for_encoding_64 (val); | |
3466 | ||
3467 | if (! full) | |
3468 | HALT_UNALLOC; | |
3469 | ||
3470 | aarch64_set_vec_double (cpu, vd, 0, u); | |
3471 | aarch64_set_vec_double (cpu, vd, 1, u); | |
3472 | return; | |
3473 | } | |
3474 | ||
3475 | default: | |
3476 | HALT_NYI; | |
3477 | } | |
3478 | } | |
3479 | ||
3480 | #define ABS(A) ((A) < 0 ? - (A) : (A)) | |
3481 | ||
3482 | static void | |
3483 | do_vec_ABS (sim_cpu *cpu) | |
3484 | { | |
3485 | /* instr[31] = 0 | |
3486 | instr[30] = half(0)/full(1) | |
3487 | instr[29,24] = 00 1110 | |
3488 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit, 11=> 64-bit | |
3489 | instr[21,10] = 10 0000 1011 10 | |
3490 | instr[9,5] = Vn | |
3491 | instr[4.0] = Vd. */ | |
3492 | ||
ef0d8ffc NC |
3493 | unsigned vn = INSTR (9, 5); |
3494 | unsigned vd = INSTR (4, 0); | |
3495 | unsigned full = INSTR (30, 30); | |
2e8cf49e NC |
3496 | unsigned i; |
3497 | ||
3498 | NYI_assert (29, 24, 0x0E); | |
3499 | NYI_assert (21, 10, 0x82E); | |
3500 | ||
2cdad34c | 3501 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3502 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3503 | { |
3504 | case 0: | |
3505 | for (i = 0; i < (full ? 16 : 8); i++) | |
3506 | aarch64_set_vec_s8 (cpu, vd, i, | |
3507 | ABS (aarch64_get_vec_s8 (cpu, vn, i))); | |
3508 | break; | |
3509 | ||
3510 | case 1: | |
3511 | for (i = 0; i < (full ? 8 : 4); i++) | |
3512 | aarch64_set_vec_s16 (cpu, vd, i, | |
3513 | ABS (aarch64_get_vec_s16 (cpu, vn, i))); | |
3514 | break; | |
3515 | ||
3516 | case 2: | |
3517 | for (i = 0; i < (full ? 4 : 2); i++) | |
3518 | aarch64_set_vec_s32 (cpu, vd, i, | |
3519 | ABS (aarch64_get_vec_s32 (cpu, vn, i))); | |
3520 | break; | |
3521 | ||
3522 | case 3: | |
3523 | if (! full) | |
3524 | HALT_NYI; | |
3525 | for (i = 0; i < 2; i++) | |
3526 | aarch64_set_vec_s64 (cpu, vd, i, | |
3527 | ABS (aarch64_get_vec_s64 (cpu, vn, i))); | |
3528 | break; | |
3529 | } | |
3530 | } | |
3531 | ||
3532 | static void | |
3533 | do_vec_ADDV (sim_cpu *cpu) | |
3534 | { | |
3535 | /* instr[31] = 0 | |
3536 | instr[30] = full/half selector | |
3537 | instr[29,24] = 00 1110 | |
3538 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit, 11=> 64-bit | |
3539 | instr[21,10] = 11 0001 1011 10 | |
3540 | instr[9,5] = Vm | |
3541 | instr[4.0] = Rd. */ | |
3542 | ||
ef0d8ffc NC |
3543 | unsigned vm = INSTR (9, 5); |
3544 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 3545 | unsigned i; |
ef0d8ffc | 3546 | int full = INSTR (30, 30); |
2e8cf49e NC |
3547 | |
3548 | NYI_assert (29, 24, 0x0E); | |
3549 | NYI_assert (21, 10, 0xC6E); | |
3550 | ||
2cdad34c | 3551 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3552 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3553 | { |
3554 | case 0: | |
2e7e5e28 JW |
3555 | { |
3556 | uint8_t val = 0; | |
3557 | for (i = 0; i < (full ? 16 : 8); i++) | |
3558 | val += aarch64_get_vec_u8 (cpu, vm, i); | |
3559 | aarch64_set_vec_u64 (cpu, rd, 0, val); | |
3560 | return; | |
3561 | } | |
2e8cf49e NC |
3562 | |
3563 | case 1: | |
2e7e5e28 JW |
3564 | { |
3565 | uint16_t val = 0; | |
3566 | for (i = 0; i < (full ? 8 : 4); i++) | |
3567 | val += aarch64_get_vec_u16 (cpu, vm, i); | |
3568 | aarch64_set_vec_u64 (cpu, rd, 0, val); | |
3569 | return; | |
3570 | } | |
2e8cf49e NC |
3571 | |
3572 | case 2: | |
2e7e5e28 JW |
3573 | { |
3574 | uint32_t val = 0; | |
3575 | if (! full) | |
3576 | HALT_UNALLOC; | |
3577 | for (i = 0; i < 4; i++) | |
3578 | val += aarch64_get_vec_u32 (cpu, vm, i); | |
3579 | aarch64_set_vec_u64 (cpu, rd, 0, val); | |
3580 | return; | |
3581 | } | |
2e8cf49e NC |
3582 | |
3583 | case 3: | |
05b3d79d | 3584 | HALT_UNALLOC; |
2e8cf49e NC |
3585 | } |
3586 | } | |
3587 | ||
3588 | static void | |
3589 | do_vec_ins_2 (sim_cpu *cpu) | |
3590 | { | |
3591 | /* instr[31,21] = 01001110000 | |
3592 | instr[20,18] = size & element selector | |
3593 | instr[17,14] = 0000 | |
3594 | instr[13] = direction: to vec(0), from vec (1) | |
3595 | instr[12,10] = 111 | |
3596 | instr[9,5] = Vm | |
3597 | instr[4,0] = Vd. */ | |
3598 | ||
3599 | unsigned elem; | |
ef0d8ffc NC |
3600 | unsigned vm = INSTR (9, 5); |
3601 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
3602 | |
3603 | NYI_assert (31, 21, 0x270); | |
3604 | NYI_assert (17, 14, 0); | |
3605 | NYI_assert (12, 10, 7); | |
3606 | ||
2cdad34c | 3607 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3608 | if (INSTR (13, 13) == 1) |
2e8cf49e | 3609 | { |
ef0d8ffc | 3610 | if (INSTR (18, 18) == 1) |
2e8cf49e NC |
3611 | { |
3612 | /* 32-bit moves. */ | |
ef0d8ffc | 3613 | elem = INSTR (20, 19); |
2e8cf49e NC |
3614 | aarch64_set_reg_u64 (cpu, vd, NO_SP, |
3615 | aarch64_get_vec_u32 (cpu, vm, elem)); | |
3616 | } | |
3617 | else | |
3618 | { | |
3619 | /* 64-bit moves. */ | |
ef0d8ffc | 3620 | if (INSTR (19, 19) != 1) |
2e8cf49e NC |
3621 | HALT_NYI; |
3622 | ||
ef0d8ffc | 3623 | elem = INSTR (20, 20); |
2e8cf49e NC |
3624 | aarch64_set_reg_u64 (cpu, vd, NO_SP, |
3625 | aarch64_get_vec_u64 (cpu, vm, elem)); | |
3626 | } | |
3627 | } | |
3628 | else | |
3629 | { | |
ef0d8ffc | 3630 | if (INSTR (18, 18) == 1) |
2e8cf49e NC |
3631 | { |
3632 | /* 32-bit moves. */ | |
ef0d8ffc | 3633 | elem = INSTR (20, 19); |
2e8cf49e NC |
3634 | aarch64_set_vec_u32 (cpu, vd, elem, |
3635 | aarch64_get_reg_u32 (cpu, vm, NO_SP)); | |
3636 | } | |
3637 | else | |
3638 | { | |
3639 | /* 64-bit moves. */ | |
ef0d8ffc | 3640 | if (INSTR (19, 19) != 1) |
2e8cf49e NC |
3641 | HALT_NYI; |
3642 | ||
ef0d8ffc | 3643 | elem = INSTR (20, 20); |
2e8cf49e NC |
3644 | aarch64_set_vec_u64 (cpu, vd, elem, |
3645 | aarch64_get_reg_u64 (cpu, vm, NO_SP)); | |
3646 | } | |
3647 | } | |
3648 | } | |
3649 | ||
7517e550 NC |
3650 | #define DO_VEC_WIDENING_MUL(N, DST_TYPE, READ_TYPE, WRITE_TYPE) \ |
3651 | do \ | |
3652 | { \ | |
3653 | DST_TYPE a[N], b[N]; \ | |
3654 | \ | |
3655 | for (i = 0; i < (N); i++) \ | |
3656 | { \ | |
3657 | a[i] = aarch64_get_vec_##READ_TYPE (cpu, vn, i + bias); \ | |
3658 | b[i] = aarch64_get_vec_##READ_TYPE (cpu, vm, i + bias); \ | |
3659 | } \ | |
3660 | for (i = 0; i < (N); i++) \ | |
3661 | aarch64_set_vec_##WRITE_TYPE (cpu, vd, i, a[i] * b[i]); \ | |
3662 | } \ | |
3663 | while (0) | |
3664 | ||
2e8cf49e NC |
3665 | static void |
3666 | do_vec_mull (sim_cpu *cpu) | |
3667 | { | |
3668 | /* instr[31] = 0 | |
3669 | instr[30] = lower(0)/upper(1) selector | |
3670 | instr[29] = signed(0)/unsigned(1) | |
3671 | instr[28,24] = 0 1110 | |
3672 | instr[23,22] = size: 8-bit (00), 16-bit (01), 32-bit (10) | |
3673 | instr[21] = 1 | |
3674 | instr[20,16] = Vm | |
3675 | instr[15,10] = 11 0000 | |
3676 | instr[9,5] = Vn | |
3677 | instr[4.0] = Vd. */ | |
3678 | ||
ef0d8ffc NC |
3679 | int unsign = INSTR (29, 29); |
3680 | int bias = INSTR (30, 30); | |
3681 | unsigned vm = INSTR (20, 16); | |
3682 | unsigned vn = INSTR ( 9, 5); | |
3683 | unsigned vd = INSTR ( 4, 0); | |
2e8cf49e NC |
3684 | unsigned i; |
3685 | ||
3686 | NYI_assert (28, 24, 0x0E); | |
3687 | NYI_assert (15, 10, 0x30); | |
3688 | ||
2cdad34c | 3689 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
3690 | /* NB: Read source values before writing results, in case |
3691 | the source and destination vectors are the same. */ | |
ef0d8ffc | 3692 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3693 | { |
3694 | case 0: | |
3695 | if (bias) | |
3696 | bias = 8; | |
3697 | if (unsign) | |
7517e550 | 3698 | DO_VEC_WIDENING_MUL (8, uint16_t, u8, u16); |
2e8cf49e | 3699 | else |
7517e550 | 3700 | DO_VEC_WIDENING_MUL (8, int16_t, s8, s16); |
2e8cf49e NC |
3701 | return; |
3702 | ||
3703 | case 1: | |
3704 | if (bias) | |
3705 | bias = 4; | |
3706 | if (unsign) | |
7517e550 | 3707 | DO_VEC_WIDENING_MUL (4, uint32_t, u16, u32); |
2e8cf49e | 3708 | else |
7517e550 | 3709 | DO_VEC_WIDENING_MUL (4, int32_t, s16, s32); |
2e8cf49e NC |
3710 | return; |
3711 | ||
3712 | case 2: | |
3713 | if (bias) | |
3714 | bias = 2; | |
3715 | if (unsign) | |
7517e550 | 3716 | DO_VEC_WIDENING_MUL (2, uint64_t, u32, u64); |
2e8cf49e | 3717 | else |
7517e550 | 3718 | DO_VEC_WIDENING_MUL (2, int64_t, s32, s64); |
2e8cf49e NC |
3719 | return; |
3720 | ||
3721 | case 3: | |
2e8cf49e NC |
3722 | HALT_NYI; |
3723 | } | |
3724 | } | |
3725 | ||
3726 | static void | |
3727 | do_vec_fadd (sim_cpu *cpu) | |
3728 | { | |
3729 | /* instr[31] = 0 | |
3730 | instr[30] = half(0)/full(1) | |
3731 | instr[29,24] = 001110 | |
3732 | instr[23] = FADD(0)/FSUB(1) | |
3733 | instr[22] = float (0)/double(1) | |
3734 | instr[21] = 1 | |
3735 | instr[20,16] = Vm | |
3736 | instr[15,10] = 110101 | |
3737 | instr[9,5] = Vn | |
3738 | instr[4.0] = Vd. */ | |
3739 | ||
ef0d8ffc NC |
3740 | unsigned vm = INSTR (20, 16); |
3741 | unsigned vn = INSTR (9, 5); | |
3742 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 3743 | unsigned i; |
ef0d8ffc | 3744 | int full = INSTR (30, 30); |
2e8cf49e NC |
3745 | |
3746 | NYI_assert (29, 24, 0x0E); | |
3747 | NYI_assert (21, 21, 1); | |
3748 | NYI_assert (15, 10, 0x35); | |
3749 | ||
2cdad34c | 3750 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3751 | if (INSTR (23, 23)) |
2e8cf49e | 3752 | { |
ef0d8ffc | 3753 | if (INSTR (22, 22)) |
2e8cf49e NC |
3754 | { |
3755 | if (! full) | |
3756 | HALT_NYI; | |
3757 | ||
3758 | for (i = 0; i < 2; i++) | |
3759 | aarch64_set_vec_double (cpu, vd, i, | |
3760 | aarch64_get_vec_double (cpu, vn, i) | |
3761 | - aarch64_get_vec_double (cpu, vm, i)); | |
3762 | } | |
3763 | else | |
3764 | { | |
3765 | for (i = 0; i < (full ? 4 : 2); i++) | |
3766 | aarch64_set_vec_float (cpu, vd, i, | |
3767 | aarch64_get_vec_float (cpu, vn, i) | |
3768 | - aarch64_get_vec_float (cpu, vm, i)); | |
3769 | } | |
3770 | } | |
3771 | else | |
3772 | { | |
ef0d8ffc | 3773 | if (INSTR (22, 22)) |
2e8cf49e NC |
3774 | { |
3775 | if (! full) | |
3776 | HALT_NYI; | |
3777 | ||
3778 | for (i = 0; i < 2; i++) | |
3779 | aarch64_set_vec_double (cpu, vd, i, | |
3780 | aarch64_get_vec_double (cpu, vm, i) | |
3781 | + aarch64_get_vec_double (cpu, vn, i)); | |
3782 | } | |
3783 | else | |
3784 | { | |
3785 | for (i = 0; i < (full ? 4 : 2); i++) | |
3786 | aarch64_set_vec_float (cpu, vd, i, | |
3787 | aarch64_get_vec_float (cpu, vm, i) | |
3788 | + aarch64_get_vec_float (cpu, vn, i)); | |
3789 | } | |
3790 | } | |
3791 | } | |
3792 | ||
3793 | static void | |
3794 | do_vec_add (sim_cpu *cpu) | |
3795 | { | |
3796 | /* instr[31] = 0 | |
3797 | instr[30] = full/half selector | |
3798 | instr[29,24] = 001110 | |
3799 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit, 11=> 64-bit | |
3800 | instr[21] = 1 | |
3801 | instr[20,16] = Vn | |
3802 | instr[15,10] = 100001 | |
3803 | instr[9,5] = Vm | |
3804 | instr[4.0] = Vd. */ | |
3805 | ||
ef0d8ffc NC |
3806 | unsigned vm = INSTR (20, 16); |
3807 | unsigned vn = INSTR (9, 5); | |
3808 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 3809 | unsigned i; |
ef0d8ffc | 3810 | int full = INSTR (30, 30); |
2e8cf49e NC |
3811 | |
3812 | NYI_assert (29, 24, 0x0E); | |
3813 | NYI_assert (21, 21, 1); | |
3814 | NYI_assert (15, 10, 0x21); | |
3815 | ||
2cdad34c | 3816 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3817 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3818 | { |
3819 | case 0: | |
3820 | for (i = 0; i < (full ? 16 : 8); i++) | |
3821 | aarch64_set_vec_u8 (cpu, vd, i, aarch64_get_vec_u8 (cpu, vn, i) | |
3822 | + aarch64_get_vec_u8 (cpu, vm, i)); | |
3823 | return; | |
3824 | ||
3825 | case 1: | |
3826 | for (i = 0; i < (full ? 8 : 4); i++) | |
3827 | aarch64_set_vec_u16 (cpu, vd, i, aarch64_get_vec_u16 (cpu, vn, i) | |
3828 | + aarch64_get_vec_u16 (cpu, vm, i)); | |
3829 | return; | |
3830 | ||
3831 | case 2: | |
3832 | for (i = 0; i < (full ? 4 : 2); i++) | |
3833 | aarch64_set_vec_u32 (cpu, vd, i, aarch64_get_vec_u32 (cpu, vn, i) | |
3834 | + aarch64_get_vec_u32 (cpu, vm, i)); | |
3835 | return; | |
3836 | ||
3837 | case 3: | |
3838 | if (! full) | |
3839 | HALT_UNALLOC; | |
3840 | aarch64_set_vec_u64 (cpu, vd, 0, aarch64_get_vec_u64 (cpu, vn, 0) | |
3841 | + aarch64_get_vec_u64 (cpu, vm, 0)); | |
3842 | aarch64_set_vec_u64 (cpu, vd, 1, | |
3843 | aarch64_get_vec_u64 (cpu, vn, 1) | |
3844 | + aarch64_get_vec_u64 (cpu, vm, 1)); | |
3845 | return; | |
2e8cf49e NC |
3846 | } |
3847 | } | |
3848 | ||
3849 | static void | |
3850 | do_vec_mul (sim_cpu *cpu) | |
3851 | { | |
3852 | /* instr[31] = 0 | |
3853 | instr[30] = full/half selector | |
3854 | instr[29,24] = 00 1110 | |
3855 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit | |
3856 | instr[21] = 1 | |
3857 | instr[20,16] = Vn | |
3858 | instr[15,10] = 10 0111 | |
3859 | instr[9,5] = Vm | |
3860 | instr[4.0] = Vd. */ | |
3861 | ||
ef0d8ffc NC |
3862 | unsigned vm = INSTR (20, 16); |
3863 | unsigned vn = INSTR (9, 5); | |
3864 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 3865 | unsigned i; |
ef0d8ffc | 3866 | int full = INSTR (30, 30); |
7517e550 | 3867 | int bias = 0; |
2e8cf49e NC |
3868 | |
3869 | NYI_assert (29, 24, 0x0E); | |
3870 | NYI_assert (21, 21, 1); | |
3871 | NYI_assert (15, 10, 0x27); | |
3872 | ||
2cdad34c | 3873 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3874 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3875 | { |
3876 | case 0: | |
c0386d4d | 3877 | DO_VEC_WIDENING_MUL (full ? 16 : 8, uint8_t, u8, u8); |
2e8cf49e NC |
3878 | return; |
3879 | ||
3880 | case 1: | |
c0386d4d | 3881 | DO_VEC_WIDENING_MUL (full ? 8 : 4, uint16_t, u16, u16); |
2e8cf49e NC |
3882 | return; |
3883 | ||
3884 | case 2: | |
c0386d4d | 3885 | DO_VEC_WIDENING_MUL (full ? 4 : 2, uint32_t, u32, u32); |
2e8cf49e NC |
3886 | return; |
3887 | ||
2e8cf49e NC |
3888 | case 3: |
3889 | HALT_UNALLOC; | |
3890 | } | |
3891 | } | |
3892 | ||
3893 | static void | |
3894 | do_vec_MLA (sim_cpu *cpu) | |
3895 | { | |
3896 | /* instr[31] = 0 | |
3897 | instr[30] = full/half selector | |
3898 | instr[29,24] = 00 1110 | |
3899 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit | |
3900 | instr[21] = 1 | |
3901 | instr[20,16] = Vn | |
3902 | instr[15,10] = 1001 01 | |
3903 | instr[9,5] = Vm | |
3904 | instr[4.0] = Vd. */ | |
3905 | ||
ef0d8ffc NC |
3906 | unsigned vm = INSTR (20, 16); |
3907 | unsigned vn = INSTR (9, 5); | |
3908 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 3909 | unsigned i; |
ef0d8ffc | 3910 | int full = INSTR (30, 30); |
2e8cf49e NC |
3911 | |
3912 | NYI_assert (29, 24, 0x0E); | |
3913 | NYI_assert (21, 21, 1); | |
3914 | NYI_assert (15, 10, 0x25); | |
3915 | ||
2cdad34c | 3916 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 3917 | switch (INSTR (23, 22)) |
2e8cf49e NC |
3918 | { |
3919 | case 0: | |
742e3a77 JW |
3920 | for (i = 0; i < (full ? 16 : 8); i++) |
3921 | aarch64_set_vec_u8 (cpu, vd, i, | |
3922 | aarch64_get_vec_u8 (cpu, vd, i) | |
3923 | + (aarch64_get_vec_u8 (cpu, vn, i) | |
3924 | * aarch64_get_vec_u8 (cpu, vm, i))); | |
2e8cf49e NC |
3925 | return; |
3926 | ||
3927 | case 1: | |
742e3a77 JW |
3928 | for (i = 0; i < (full ? 8 : 4); i++) |
3929 | aarch64_set_vec_u16 (cpu, vd, i, | |
3930 | aarch64_get_vec_u16 (cpu, vd, i) | |
3931 | + (aarch64_get_vec_u16 (cpu, vn, i) | |
3932 | * aarch64_get_vec_u16 (cpu, vm, i))); | |
2e8cf49e NC |
3933 | return; |
3934 | ||
3935 | case 2: | |
742e3a77 JW |
3936 | for (i = 0; i < (full ? 4 : 2); i++) |
3937 | aarch64_set_vec_u32 (cpu, vd, i, | |
3938 | aarch64_get_vec_u32 (cpu, vd, i) | |
3939 | + (aarch64_get_vec_u32 (cpu, vn, i) | |
3940 | * aarch64_get_vec_u32 (cpu, vm, i))); | |
2e8cf49e NC |
3941 | return; |
3942 | ||
742e3a77 | 3943 | default: |
2e8cf49e NC |
3944 | HALT_UNALLOC; |
3945 | } | |
3946 | } | |
3947 | ||
3948 | static float | |
3949 | fmaxnm (float a, float b) | |
3950 | { | |
c0386d4d | 3951 | if (! isnan (a)) |
2e8cf49e | 3952 | { |
c0386d4d | 3953 | if (! isnan (b)) |
2e8cf49e NC |
3954 | return a > b ? a : b; |
3955 | return a; | |
3956 | } | |
c0386d4d | 3957 | else if (! isnan (b)) |
2e8cf49e NC |
3958 | return b; |
3959 | return a; | |
3960 | } | |
3961 | ||
3962 | static float | |
3963 | fminnm (float a, float b) | |
3964 | { | |
c0386d4d | 3965 | if (! isnan (a)) |
2e8cf49e | 3966 | { |
c0386d4d | 3967 | if (! isnan (b)) |
2e8cf49e NC |
3968 | return a < b ? a : b; |
3969 | return a; | |
3970 | } | |
c0386d4d | 3971 | else if (! isnan (b)) |
2e8cf49e NC |
3972 | return b; |
3973 | return a; | |
3974 | } | |
3975 | ||
3976 | static double | |
3977 | dmaxnm (double a, double b) | |
3978 | { | |
c0386d4d | 3979 | if (! isnan (a)) |
2e8cf49e | 3980 | { |
c0386d4d | 3981 | if (! isnan (b)) |
2e8cf49e NC |
3982 | return a > b ? a : b; |
3983 | return a; | |
3984 | } | |
c0386d4d | 3985 | else if (! isnan (b)) |
2e8cf49e NC |
3986 | return b; |
3987 | return a; | |
3988 | } | |
3989 | ||
3990 | static double | |
3991 | dminnm (double a, double b) | |
3992 | { | |
c0386d4d | 3993 | if (! isnan (a)) |
2e8cf49e | 3994 | { |
c0386d4d | 3995 | if (! isnan (b)) |
2e8cf49e NC |
3996 | return a < b ? a : b; |
3997 | return a; | |
3998 | } | |
c0386d4d | 3999 | else if (! isnan (b)) |
2e8cf49e NC |
4000 | return b; |
4001 | return a; | |
4002 | } | |
4003 | ||
4004 | static void | |
4005 | do_vec_FminmaxNMP (sim_cpu *cpu) | |
4006 | { | |
ef0d8ffc NC |
4007 | /* instr [31] = 0 |
4008 | instr [30] = half (0)/full (1) | |
4009 | instr [29,24] = 10 1110 | |
4010 | instr [23] = max(0)/min(1) | |
4011 | instr [22] = float (0)/double (1) | |
4012 | instr [21] = 1 | |
4013 | instr [20,16] = Vn | |
4014 | instr [15,10] = 1100 01 | |
4015 | instr [9,5] = Vm | |
4016 | instr [4.0] = Vd. */ | |
4017 | ||
4018 | unsigned vm = INSTR (20, 16); | |
4019 | unsigned vn = INSTR (9, 5); | |
4020 | unsigned vd = INSTR (4, 0); | |
4021 | int full = INSTR (30, 30); | |
2e8cf49e NC |
4022 | |
4023 | NYI_assert (29, 24, 0x2E); | |
4024 | NYI_assert (21, 21, 1); | |
4025 | NYI_assert (15, 10, 0x31); | |
4026 | ||
2cdad34c | 4027 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 4028 | if (INSTR (22, 22)) |
2e8cf49e | 4029 | { |
ef0d8ffc | 4030 | double (* fn)(double, double) = INSTR (23, 23) |
2e8cf49e NC |
4031 | ? dminnm : dmaxnm; |
4032 | ||
4033 | if (! full) | |
4034 | HALT_NYI; | |
4035 | aarch64_set_vec_double (cpu, vd, 0, | |
4036 | fn (aarch64_get_vec_double (cpu, vn, 0), | |
4037 | aarch64_get_vec_double (cpu, vn, 1))); | |
4038 | aarch64_set_vec_double (cpu, vd, 0, | |
4039 | fn (aarch64_get_vec_double (cpu, vm, 0), | |
4040 | aarch64_get_vec_double (cpu, vm, 1))); | |
4041 | } | |
4042 | else | |
4043 | { | |
ef0d8ffc | 4044 | float (* fn)(float, float) = INSTR (23, 23) |
2e8cf49e NC |
4045 | ? fminnm : fmaxnm; |
4046 | ||
4047 | aarch64_set_vec_float (cpu, vd, 0, | |
4048 | fn (aarch64_get_vec_float (cpu, vn, 0), | |
4049 | aarch64_get_vec_float (cpu, vn, 1))); | |
4050 | if (full) | |
4051 | aarch64_set_vec_float (cpu, vd, 1, | |
4052 | fn (aarch64_get_vec_float (cpu, vn, 2), | |
4053 | aarch64_get_vec_float (cpu, vn, 3))); | |
4054 | ||
4055 | aarch64_set_vec_float (cpu, vd, (full ? 2 : 1), | |
4056 | fn (aarch64_get_vec_float (cpu, vm, 0), | |
4057 | aarch64_get_vec_float (cpu, vm, 1))); | |
4058 | if (full) | |
4059 | aarch64_set_vec_float (cpu, vd, 3, | |
4060 | fn (aarch64_get_vec_float (cpu, vm, 2), | |
4061 | aarch64_get_vec_float (cpu, vm, 3))); | |
4062 | } | |
4063 | } | |
4064 | ||
4065 | static void | |
4066 | do_vec_AND (sim_cpu *cpu) | |
4067 | { | |
4068 | /* instr[31] = 0 | |
4069 | instr[30] = half (0)/full (1) | |
4070 | instr[29,21] = 001110001 | |
4071 | instr[20,16] = Vm | |
4072 | instr[15,10] = 000111 | |
4073 | instr[9,5] = Vn | |
4074 | instr[4.0] = Vd. */ | |
4075 | ||
ef0d8ffc NC |
4076 | unsigned vm = INSTR (20, 16); |
4077 | unsigned vn = INSTR (9, 5); | |
4078 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4079 | unsigned i; |
ef0d8ffc | 4080 | int full = INSTR (30, 30); |
2e8cf49e NC |
4081 | |
4082 | NYI_assert (29, 21, 0x071); | |
4083 | NYI_assert (15, 10, 0x07); | |
4084 | ||
2cdad34c | 4085 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4086 | for (i = 0; i < (full ? 4 : 2); i++) |
4087 | aarch64_set_vec_u32 (cpu, vd, i, | |
4088 | aarch64_get_vec_u32 (cpu, vn, i) | |
4089 | & aarch64_get_vec_u32 (cpu, vm, i)); | |
4090 | } | |
4091 | ||
4092 | static void | |
4093 | do_vec_BSL (sim_cpu *cpu) | |
4094 | { | |
4095 | /* instr[31] = 0 | |
4096 | instr[30] = half (0)/full (1) | |
4097 | instr[29,21] = 101110011 | |
4098 | instr[20,16] = Vm | |
4099 | instr[15,10] = 000111 | |
4100 | instr[9,5] = Vn | |
4101 | instr[4.0] = Vd. */ | |
4102 | ||
ef0d8ffc NC |
4103 | unsigned vm = INSTR (20, 16); |
4104 | unsigned vn = INSTR (9, 5); | |
4105 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4106 | unsigned i; |
ef0d8ffc | 4107 | int full = INSTR (30, 30); |
2e8cf49e NC |
4108 | |
4109 | NYI_assert (29, 21, 0x173); | |
4110 | NYI_assert (15, 10, 0x07); | |
4111 | ||
2cdad34c | 4112 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4113 | for (i = 0; i < (full ? 16 : 8); i++) |
4114 | aarch64_set_vec_u8 (cpu, vd, i, | |
4115 | ( aarch64_get_vec_u8 (cpu, vd, i) | |
4116 | & aarch64_get_vec_u8 (cpu, vn, i)) | |
4117 | | ((~ aarch64_get_vec_u8 (cpu, vd, i)) | |
4118 | & aarch64_get_vec_u8 (cpu, vm, i))); | |
4119 | } | |
4120 | ||
4121 | static void | |
4122 | do_vec_EOR (sim_cpu *cpu) | |
4123 | { | |
4124 | /* instr[31] = 0 | |
4125 | instr[30] = half (0)/full (1) | |
4126 | instr[29,21] = 10 1110 001 | |
4127 | instr[20,16] = Vm | |
4128 | instr[15,10] = 000111 | |
4129 | instr[9,5] = Vn | |
4130 | instr[4.0] = Vd. */ | |
4131 | ||
ef0d8ffc NC |
4132 | unsigned vm = INSTR (20, 16); |
4133 | unsigned vn = INSTR (9, 5); | |
4134 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4135 | unsigned i; |
ef0d8ffc | 4136 | int full = INSTR (30, 30); |
2e8cf49e NC |
4137 | |
4138 | NYI_assert (29, 21, 0x171); | |
4139 | NYI_assert (15, 10, 0x07); | |
4140 | ||
2cdad34c | 4141 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4142 | for (i = 0; i < (full ? 4 : 2); i++) |
4143 | aarch64_set_vec_u32 (cpu, vd, i, | |
4144 | aarch64_get_vec_u32 (cpu, vn, i) | |
4145 | ^ aarch64_get_vec_u32 (cpu, vm, i)); | |
4146 | } | |
4147 | ||
4148 | static void | |
4149 | do_vec_bit (sim_cpu *cpu) | |
4150 | { | |
4151 | /* instr[31] = 0 | |
4152 | instr[30] = half (0)/full (1) | |
4153 | instr[29,23] = 10 1110 1 | |
4154 | instr[22] = BIT (0) / BIF (1) | |
4155 | instr[21] = 1 | |
4156 | instr[20,16] = Vm | |
4157 | instr[15,10] = 0001 11 | |
4158 | instr[9,5] = Vn | |
4159 | instr[4.0] = Vd. */ | |
4160 | ||
ef0d8ffc NC |
4161 | unsigned vm = INSTR (20, 16); |
4162 | unsigned vn = INSTR (9, 5); | |
4163 | unsigned vd = INSTR (4, 0); | |
4164 | unsigned full = INSTR (30, 30); | |
4165 | unsigned test_false = INSTR (22, 22); | |
2e8cf49e NC |
4166 | unsigned i; |
4167 | ||
4168 | NYI_assert (29, 23, 0x5D); | |
4169 | NYI_assert (21, 21, 1); | |
4170 | NYI_assert (15, 10, 0x07); | |
4171 | ||
2cdad34c | 4172 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
bf25e9a0 | 4173 | for (i = 0; i < (full ? 4 : 2); i++) |
2e8cf49e | 4174 | { |
bf25e9a0 JW |
4175 | uint32_t vd_val = aarch64_get_vec_u32 (cpu, vd, i); |
4176 | uint32_t vn_val = aarch64_get_vec_u32 (cpu, vn, i); | |
4177 | uint32_t vm_val = aarch64_get_vec_u32 (cpu, vm, i); | |
4178 | if (test_false) | |
4179 | aarch64_set_vec_u32 (cpu, vd, i, | |
4180 | (vd_val & vm_val) | (vn_val & ~vm_val)); | |
4181 | else | |
4182 | aarch64_set_vec_u32 (cpu, vd, i, | |
4183 | (vd_val & ~vm_val) | (vn_val & vm_val)); | |
2e8cf49e NC |
4184 | } |
4185 | } | |
4186 | ||
4187 | static void | |
4188 | do_vec_ORN (sim_cpu *cpu) | |
4189 | { | |
4190 | /* instr[31] = 0 | |
4191 | instr[30] = half (0)/full (1) | |
4192 | instr[29,21] = 00 1110 111 | |
4193 | instr[20,16] = Vm | |
4194 | instr[15,10] = 00 0111 | |
4195 | instr[9,5] = Vn | |
4196 | instr[4.0] = Vd. */ | |
4197 | ||
ef0d8ffc NC |
4198 | unsigned vm = INSTR (20, 16); |
4199 | unsigned vn = INSTR (9, 5); | |
4200 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4201 | unsigned i; |
ef0d8ffc | 4202 | int full = INSTR (30, 30); |
2e8cf49e NC |
4203 | |
4204 | NYI_assert (29, 21, 0x077); | |
4205 | NYI_assert (15, 10, 0x07); | |
4206 | ||
2cdad34c | 4207 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4208 | for (i = 0; i < (full ? 16 : 8); i++) |
4209 | aarch64_set_vec_u8 (cpu, vd, i, | |
4210 | aarch64_get_vec_u8 (cpu, vn, i) | |
4211 | | ~ aarch64_get_vec_u8 (cpu, vm, i)); | |
4212 | } | |
4213 | ||
4214 | static void | |
4215 | do_vec_ORR (sim_cpu *cpu) | |
4216 | { | |
4217 | /* instr[31] = 0 | |
4218 | instr[30] = half (0)/full (1) | |
4219 | instr[29,21] = 00 1110 101 | |
4220 | instr[20,16] = Vm | |
4221 | instr[15,10] = 0001 11 | |
4222 | instr[9,5] = Vn | |
4223 | instr[4.0] = Vd. */ | |
4224 | ||
ef0d8ffc NC |
4225 | unsigned vm = INSTR (20, 16); |
4226 | unsigned vn = INSTR (9, 5); | |
4227 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4228 | unsigned i; |
ef0d8ffc | 4229 | int full = INSTR (30, 30); |
2e8cf49e NC |
4230 | |
4231 | NYI_assert (29, 21, 0x075); | |
4232 | NYI_assert (15, 10, 0x07); | |
4233 | ||
2cdad34c | 4234 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4235 | for (i = 0; i < (full ? 16 : 8); i++) |
4236 | aarch64_set_vec_u8 (cpu, vd, i, | |
4237 | aarch64_get_vec_u8 (cpu, vn, i) | |
4238 | | aarch64_get_vec_u8 (cpu, vm, i)); | |
4239 | } | |
4240 | ||
4241 | static void | |
4242 | do_vec_BIC (sim_cpu *cpu) | |
4243 | { | |
4244 | /* instr[31] = 0 | |
4245 | instr[30] = half (0)/full (1) | |
4246 | instr[29,21] = 00 1110 011 | |
4247 | instr[20,16] = Vm | |
4248 | instr[15,10] = 00 0111 | |
4249 | instr[9,5] = Vn | |
4250 | instr[4.0] = Vd. */ | |
4251 | ||
ef0d8ffc NC |
4252 | unsigned vm = INSTR (20, 16); |
4253 | unsigned vn = INSTR (9, 5); | |
4254 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4255 | unsigned i; |
ef0d8ffc | 4256 | int full = INSTR (30, 30); |
2e8cf49e NC |
4257 | |
4258 | NYI_assert (29, 21, 0x073); | |
4259 | NYI_assert (15, 10, 0x07); | |
4260 | ||
2cdad34c | 4261 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4262 | for (i = 0; i < (full ? 16 : 8); i++) |
4263 | aarch64_set_vec_u8 (cpu, vd, i, | |
4264 | aarch64_get_vec_u8 (cpu, vn, i) | |
4265 | & ~ aarch64_get_vec_u8 (cpu, vm, i)); | |
4266 | } | |
4267 | ||
4268 | static void | |
4269 | do_vec_XTN (sim_cpu *cpu) | |
4270 | { | |
4271 | /* instr[31] = 0 | |
4272 | instr[30] = first part (0)/ second part (1) | |
4273 | instr[29,24] = 00 1110 | |
4274 | instr[23,22] = size: byte(00), half(01), word (10) | |
4275 | instr[21,10] = 1000 0100 1010 | |
4276 | instr[9,5] = Vs | |
4277 | instr[4,0] = Vd. */ | |
4278 | ||
ef0d8ffc NC |
4279 | unsigned vs = INSTR (9, 5); |
4280 | unsigned vd = INSTR (4, 0); | |
4281 | unsigned bias = INSTR (30, 30); | |
2e8cf49e NC |
4282 | unsigned i; |
4283 | ||
4284 | NYI_assert (29, 24, 0x0E); | |
4285 | NYI_assert (21, 10, 0x84A); | |
4286 | ||
2cdad34c | 4287 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 4288 | switch (INSTR (23, 22)) |
2e8cf49e NC |
4289 | { |
4290 | case 0: | |
05b3d79d JW |
4291 | for (i = 0; i < 8; i++) |
4292 | aarch64_set_vec_u8 (cpu, vd, i + (bias * 8), | |
4293 | aarch64_get_vec_u16 (cpu, vs, i)); | |
2e8cf49e NC |
4294 | return; |
4295 | ||
4296 | case 1: | |
05b3d79d JW |
4297 | for (i = 0; i < 4; i++) |
4298 | aarch64_set_vec_u16 (cpu, vd, i + (bias * 4), | |
4299 | aarch64_get_vec_u32 (cpu, vs, i)); | |
2e8cf49e NC |
4300 | return; |
4301 | ||
4302 | case 2: | |
05b3d79d JW |
4303 | for (i = 0; i < 2; i++) |
4304 | aarch64_set_vec_u32 (cpu, vd, i + (bias * 2), | |
4305 | aarch64_get_vec_u64 (cpu, vs, i)); | |
2e8cf49e | 4306 | return; |
2e8cf49e NC |
4307 | } |
4308 | } | |
4309 | ||
ac189e7b JW |
4310 | /* Return the number of bits set in the input value. */ |
4311 | #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) | |
4312 | # define popcount __builtin_popcount | |
4313 | #else | |
4314 | static int | |
4315 | popcount (unsigned char x) | |
4316 | { | |
4317 | static const unsigned char popcnt[16] = | |
4318 | { | |
4319 | 0, 1, 1, 2, | |
4320 | 1, 2, 2, 3, | |
4321 | 1, 2, 2, 3, | |
4322 | 2, 3, 3, 4 | |
4323 | }; | |
4324 | ||
4325 | /* Only counts the low 8 bits of the input as that is all we need. */ | |
4326 | return popcnt[x % 16] + popcnt[x / 16]; | |
4327 | } | |
4328 | #endif | |
4329 | ||
4330 | static void | |
4331 | do_vec_CNT (sim_cpu *cpu) | |
4332 | { | |
4333 | /* instr[31] = 0 | |
4334 | instr[30] = half (0)/ full (1) | |
4335 | instr[29,24] = 00 1110 | |
4336 | instr[23,22] = size: byte(00) | |
4337 | instr[21,10] = 1000 0001 0110 | |
4338 | instr[9,5] = Vs | |
4339 | instr[4,0] = Vd. */ | |
4340 | ||
4341 | unsigned vs = INSTR (9, 5); | |
4342 | unsigned vd = INSTR (4, 0); | |
4343 | int full = INSTR (30, 30); | |
4344 | int size = INSTR (23, 22); | |
4345 | int i; | |
4346 | ||
4347 | NYI_assert (29, 24, 0x0E); | |
4348 | NYI_assert (21, 10, 0x816); | |
4349 | ||
4350 | if (size != 0) | |
4351 | HALT_UNALLOC; | |
4352 | ||
4353 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
4354 | ||
4355 | for (i = 0; i < (full ? 16 : 8); i++) | |
4356 | aarch64_set_vec_u8 (cpu, vd, i, | |
4357 | popcount (aarch64_get_vec_u8 (cpu, vs, i))); | |
4358 | } | |
4359 | ||
2e8cf49e NC |
4360 | static void |
4361 | do_vec_maxv (sim_cpu *cpu) | |
4362 | { | |
4363 | /* instr[31] = 0 | |
4364 | instr[30] = half(0)/full(1) | |
4365 | instr[29] = signed (0)/unsigned(1) | |
4366 | instr[28,24] = 0 1110 | |
4367 | instr[23,22] = size: byte(00), half(01), word (10) | |
4368 | instr[21] = 1 | |
4369 | instr[20,17] = 1 000 | |
4370 | instr[16] = max(0)/min(1) | |
4371 | instr[15,10] = 1010 10 | |
4372 | instr[9,5] = V source | |
4373 | instr[4.0] = R dest. */ | |
4374 | ||
ef0d8ffc NC |
4375 | unsigned vs = INSTR (9, 5); |
4376 | unsigned rd = INSTR (4, 0); | |
4377 | unsigned full = INSTR (30, 30); | |
2e8cf49e NC |
4378 | unsigned i; |
4379 | ||
4380 | NYI_assert (28, 24, 0x0E); | |
4381 | NYI_assert (21, 21, 1); | |
4382 | NYI_assert (20, 17, 8); | |
4383 | NYI_assert (15, 10, 0x2A); | |
4384 | ||
2cdad34c | 4385 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 | 4386 | switch ((INSTR (29, 29) << 1) | INSTR (16, 16)) |
2e8cf49e NC |
4387 | { |
4388 | case 0: /* SMAXV. */ | |
4389 | { | |
4390 | int64_t smax; | |
ef0d8ffc | 4391 | switch (INSTR (23, 22)) |
2e8cf49e NC |
4392 | { |
4393 | case 0: | |
4394 | smax = aarch64_get_vec_s8 (cpu, vs, 0); | |
4395 | for (i = 1; i < (full ? 16 : 8); i++) | |
bc273e17 | 4396 | smax = max (smax, aarch64_get_vec_s8 (cpu, vs, i)); |
2e8cf49e NC |
4397 | break; |
4398 | case 1: | |
4399 | smax = aarch64_get_vec_s16 (cpu, vs, 0); | |
4400 | for (i = 1; i < (full ? 8 : 4); i++) | |
bc273e17 | 4401 | smax = max (smax, aarch64_get_vec_s16 (cpu, vs, i)); |
2e8cf49e NC |
4402 | break; |
4403 | case 2: | |
4404 | smax = aarch64_get_vec_s32 (cpu, vs, 0); | |
4405 | for (i = 1; i < (full ? 4 : 2); i++) | |
bc273e17 | 4406 | smax = max (smax, aarch64_get_vec_s32 (cpu, vs, i)); |
2e8cf49e | 4407 | break; |
2e8cf49e NC |
4408 | case 3: |
4409 | HALT_UNALLOC; | |
4410 | } | |
4411 | aarch64_set_reg_s64 (cpu, rd, NO_SP, smax); | |
4412 | return; | |
4413 | } | |
4414 | ||
4415 | case 1: /* SMINV. */ | |
4416 | { | |
4417 | int64_t smin; | |
ef0d8ffc | 4418 | switch (INSTR (23, 22)) |
2e8cf49e NC |
4419 | { |
4420 | case 0: | |
4421 | smin = aarch64_get_vec_s8 (cpu, vs, 0); | |
4422 | for (i = 1; i < (full ? 16 : 8); i++) | |
bc273e17 | 4423 | smin = min (smin, aarch64_get_vec_s8 (cpu, vs, i)); |
2e8cf49e NC |
4424 | break; |
4425 | case 1: | |
4426 | smin = aarch64_get_vec_s16 (cpu, vs, 0); | |
4427 | for (i = 1; i < (full ? 8 : 4); i++) | |
bc273e17 | 4428 | smin = min (smin, aarch64_get_vec_s16 (cpu, vs, i)); |
2e8cf49e NC |
4429 | break; |
4430 | case 2: | |
4431 | smin = aarch64_get_vec_s32 (cpu, vs, 0); | |
4432 | for (i = 1; i < (full ? 4 : 2); i++) | |
bc273e17 | 4433 | smin = min (smin, aarch64_get_vec_s32 (cpu, vs, i)); |
2e8cf49e | 4434 | break; |
5ab6d79e | 4435 | |
2e8cf49e NC |
4436 | case 3: |
4437 | HALT_UNALLOC; | |
4438 | } | |
4439 | aarch64_set_reg_s64 (cpu, rd, NO_SP, smin); | |
4440 | return; | |
4441 | } | |
4442 | ||
4443 | case 2: /* UMAXV. */ | |
4444 | { | |
4445 | uint64_t umax; | |
ef0d8ffc | 4446 | switch (INSTR (23, 22)) |
2e8cf49e NC |
4447 | { |
4448 | case 0: | |
4449 | umax = aarch64_get_vec_u8 (cpu, vs, 0); | |
4450 | for (i = 1; i < (full ? 16 : 8); i++) | |
bc273e17 | 4451 | umax = max (umax, aarch64_get_vec_u8 (cpu, vs, i)); |
2e8cf49e NC |
4452 | break; |
4453 | case 1: | |
4454 | umax = aarch64_get_vec_u16 (cpu, vs, 0); | |
4455 | for (i = 1; i < (full ? 8 : 4); i++) | |
bc273e17 | 4456 | umax = max (umax, aarch64_get_vec_u16 (cpu, vs, i)); |
2e8cf49e NC |
4457 | break; |
4458 | case 2: | |
4459 | umax = aarch64_get_vec_u32 (cpu, vs, 0); | |
4460 | for (i = 1; i < (full ? 4 : 2); i++) | |
bc273e17 | 4461 | umax = max (umax, aarch64_get_vec_u32 (cpu, vs, i)); |
2e8cf49e | 4462 | break; |
5ab6d79e | 4463 | |
2e8cf49e NC |
4464 | case 3: |
4465 | HALT_UNALLOC; | |
4466 | } | |
4467 | aarch64_set_reg_u64 (cpu, rd, NO_SP, umax); | |
4468 | return; | |
4469 | } | |
4470 | ||
4471 | case 3: /* UMINV. */ | |
4472 | { | |
4473 | uint64_t umin; | |
ef0d8ffc | 4474 | switch (INSTR (23, 22)) |
2e8cf49e NC |
4475 | { |
4476 | case 0: | |
4477 | umin = aarch64_get_vec_u8 (cpu, vs, 0); | |
4478 | for (i = 1; i < (full ? 16 : 8); i++) | |
bc273e17 | 4479 | umin = min (umin, aarch64_get_vec_u8 (cpu, vs, i)); |
2e8cf49e NC |
4480 | break; |
4481 | case 1: | |
4482 | umin = aarch64_get_vec_u16 (cpu, vs, 0); | |
4483 | for (i = 1; i < (full ? 8 : 4); i++) | |
bc273e17 | 4484 | umin = min (umin, aarch64_get_vec_u16 (cpu, vs, i)); |
2e8cf49e NC |
4485 | break; |
4486 | case 2: | |
4487 | umin = aarch64_get_vec_u32 (cpu, vs, 0); | |
4488 | for (i = 1; i < (full ? 4 : 2); i++) | |
bc273e17 | 4489 | umin = min (umin, aarch64_get_vec_u32 (cpu, vs, i)); |
2e8cf49e | 4490 | break; |
5ab6d79e | 4491 | |
2e8cf49e NC |
4492 | case 3: |
4493 | HALT_UNALLOC; | |
4494 | } | |
4495 | aarch64_set_reg_u64 (cpu, rd, NO_SP, umin); | |
4496 | return; | |
4497 | } | |
2e8cf49e NC |
4498 | } |
4499 | } | |
4500 | ||
4501 | static void | |
4502 | do_vec_fminmaxV (sim_cpu *cpu) | |
4503 | { | |
4504 | /* instr[31,24] = 0110 1110 | |
4505 | instr[23] = max(0)/min(1) | |
4506 | instr[22,14] = 011 0000 11 | |
4507 | instr[13,12] = nm(00)/normal(11) | |
4508 | instr[11,10] = 10 | |
4509 | instr[9,5] = V source | |
4510 | instr[4.0] = R dest. */ | |
4511 | ||
ef0d8ffc NC |
4512 | unsigned vs = INSTR (9, 5); |
4513 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
4514 | unsigned i; |
4515 | float res = aarch64_get_vec_float (cpu, vs, 0); | |
4516 | ||
4517 | NYI_assert (31, 24, 0x6E); | |
4518 | NYI_assert (22, 14, 0x0C3); | |
4519 | NYI_assert (11, 10, 2); | |
4520 | ||
2cdad34c | 4521 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 4522 | if (INSTR (23, 23)) |
2e8cf49e | 4523 | { |
ef0d8ffc | 4524 | switch (INSTR (13, 12)) |
2e8cf49e NC |
4525 | { |
4526 | case 0: /* FMNINNMV. */ | |
4527 | for (i = 1; i < 4; i++) | |
4528 | res = fminnm (res, aarch64_get_vec_float (cpu, vs, i)); | |
4529 | break; | |
4530 | ||
4531 | case 3: /* FMINV. */ | |
4532 | for (i = 1; i < 4; i++) | |
bc273e17 | 4533 | res = min (res, aarch64_get_vec_float (cpu, vs, i)); |
2e8cf49e NC |
4534 | break; |
4535 | ||
4536 | default: | |
4537 | HALT_NYI; | |
4538 | } | |
4539 | } | |
4540 | else | |
4541 | { | |
ef0d8ffc | 4542 | switch (INSTR (13, 12)) |
2e8cf49e NC |
4543 | { |
4544 | case 0: /* FMNAXNMV. */ | |
4545 | for (i = 1; i < 4; i++) | |
4546 | res = fmaxnm (res, aarch64_get_vec_float (cpu, vs, i)); | |
4547 | break; | |
4548 | ||
4549 | case 3: /* FMAXV. */ | |
4550 | for (i = 1; i < 4; i++) | |
bc273e17 | 4551 | res = max (res, aarch64_get_vec_float (cpu, vs, i)); |
2e8cf49e NC |
4552 | break; |
4553 | ||
4554 | default: | |
4555 | HALT_NYI; | |
4556 | } | |
4557 | } | |
4558 | ||
4559 | aarch64_set_FP_float (cpu, rd, res); | |
4560 | } | |
4561 | ||
4562 | static void | |
4563 | do_vec_Fminmax (sim_cpu *cpu) | |
4564 | { | |
4565 | /* instr[31] = 0 | |
4566 | instr[30] = half(0)/full(1) | |
4567 | instr[29,24] = 00 1110 | |
4568 | instr[23] = max(0)/min(1) | |
4569 | instr[22] = float(0)/double(1) | |
4570 | instr[21] = 1 | |
4571 | instr[20,16] = Vm | |
4572 | instr[15,14] = 11 | |
4573 | instr[13,12] = nm(00)/normal(11) | |
4574 | instr[11,10] = 01 | |
4575 | instr[9,5] = Vn | |
4576 | instr[4,0] = Vd. */ | |
4577 | ||
ef0d8ffc NC |
4578 | unsigned vm = INSTR (20, 16); |
4579 | unsigned vn = INSTR (9, 5); | |
4580 | unsigned vd = INSTR (4, 0); | |
4581 | unsigned full = INSTR (30, 30); | |
4582 | unsigned min = INSTR (23, 23); | |
2e8cf49e NC |
4583 | unsigned i; |
4584 | ||
4585 | NYI_assert (29, 24, 0x0E); | |
4586 | NYI_assert (21, 21, 1); | |
4587 | NYI_assert (15, 14, 3); | |
4588 | NYI_assert (11, 10, 1); | |
4589 | ||
2cdad34c | 4590 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 4591 | if (INSTR (22, 22)) |
2e8cf49e NC |
4592 | { |
4593 | double (* func)(double, double); | |
4594 | ||
4595 | if (! full) | |
4596 | HALT_NYI; | |
4597 | ||
ef0d8ffc | 4598 | if (INSTR (13, 12) == 0) |
2e8cf49e | 4599 | func = min ? dminnm : dmaxnm; |
ef0d8ffc | 4600 | else if (INSTR (13, 12) == 3) |
2e8cf49e NC |
4601 | func = min ? fmin : fmax; |
4602 | else | |
4603 | HALT_NYI; | |
4604 | ||
4605 | for (i = 0; i < 2; i++) | |
4606 | aarch64_set_vec_double (cpu, vd, i, | |
4607 | func (aarch64_get_vec_double (cpu, vn, i), | |
4608 | aarch64_get_vec_double (cpu, vm, i))); | |
4609 | } | |
4610 | else | |
4611 | { | |
4612 | float (* func)(float, float); | |
4613 | ||
ef0d8ffc | 4614 | if (INSTR (13, 12) == 0) |
2e8cf49e | 4615 | func = min ? fminnm : fmaxnm; |
ef0d8ffc | 4616 | else if (INSTR (13, 12) == 3) |
2e8cf49e NC |
4617 | func = min ? fminf : fmaxf; |
4618 | else | |
4619 | HALT_NYI; | |
4620 | ||
4621 | for (i = 0; i < (full ? 4 : 2); i++) | |
4622 | aarch64_set_vec_float (cpu, vd, i, | |
4623 | func (aarch64_get_vec_float (cpu, vn, i), | |
4624 | aarch64_get_vec_float (cpu, vm, i))); | |
4625 | } | |
4626 | } | |
4627 | ||
4628 | static void | |
4629 | do_vec_SCVTF (sim_cpu *cpu) | |
4630 | { | |
4631 | /* instr[31] = 0 | |
4632 | instr[30] = Q | |
4633 | instr[29,23] = 00 1110 0 | |
4634 | instr[22] = float(0)/double(1) | |
4635 | instr[21,10] = 10 0001 1101 10 | |
4636 | instr[9,5] = Vn | |
4637 | instr[4,0] = Vd. */ | |
4638 | ||
ef0d8ffc NC |
4639 | unsigned vn = INSTR (9, 5); |
4640 | unsigned vd = INSTR (4, 0); | |
4641 | unsigned full = INSTR (30, 30); | |
4642 | unsigned size = INSTR (22, 22); | |
2e8cf49e NC |
4643 | unsigned i; |
4644 | ||
4645 | NYI_assert (29, 23, 0x1C); | |
4646 | NYI_assert (21, 10, 0x876); | |
4647 | ||
2cdad34c | 4648 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
4649 | if (size) |
4650 | { | |
4651 | if (! full) | |
4652 | HALT_UNALLOC; | |
4653 | ||
4654 | for (i = 0; i < 2; i++) | |
4655 | { | |
4656 | double val = (double) aarch64_get_vec_u64 (cpu, vn, i); | |
4657 | aarch64_set_vec_double (cpu, vd, i, val); | |
4658 | } | |
4659 | } | |
4660 | else | |
4661 | { | |
4662 | for (i = 0; i < (full ? 4 : 2); i++) | |
4663 | { | |
4664 | float val = (float) aarch64_get_vec_u32 (cpu, vn, i); | |
4665 | aarch64_set_vec_float (cpu, vd, i, val); | |
4666 | } | |
4667 | } | |
4668 | } | |
4669 | ||
4670 | #define VEC_CMP(SOURCE, CMP) \ | |
4671 | do \ | |
4672 | { \ | |
4673 | switch (size) \ | |
4674 | { \ | |
4675 | case 0: \ | |
4676 | for (i = 0; i < (full ? 16 : 8); i++) \ | |
4677 | aarch64_set_vec_u8 (cpu, vd, i, \ | |
4678 | aarch64_get_vec_##SOURCE##8 (cpu, vn, i) \ | |
4679 | CMP \ | |
4680 | aarch64_get_vec_##SOURCE##8 (cpu, vm, i) \ | |
4681 | ? -1 : 0); \ | |
4682 | return; \ | |
4683 | case 1: \ | |
4684 | for (i = 0; i < (full ? 8 : 4); i++) \ | |
4685 | aarch64_set_vec_u16 (cpu, vd, i, \ | |
4686 | aarch64_get_vec_##SOURCE##16 (cpu, vn, i) \ | |
4687 | CMP \ | |
4688 | aarch64_get_vec_##SOURCE##16 (cpu, vm, i) \ | |
4689 | ? -1 : 0); \ | |
4690 | return; \ | |
4691 | case 2: \ | |
4692 | for (i = 0; i < (full ? 4 : 2); i++) \ | |
4693 | aarch64_set_vec_u32 (cpu, vd, i, \ | |
4694 | aarch64_get_vec_##SOURCE##32 (cpu, vn, i) \ | |
4695 | CMP \ | |
4696 | aarch64_get_vec_##SOURCE##32 (cpu, vm, i) \ | |
4697 | ? -1 : 0); \ | |
4698 | return; \ | |
4699 | case 3: \ | |
4700 | if (! full) \ | |
4701 | HALT_UNALLOC; \ | |
4702 | for (i = 0; i < 2; i++) \ | |
4703 | aarch64_set_vec_u64 (cpu, vd, i, \ | |
4704 | aarch64_get_vec_##SOURCE##64 (cpu, vn, i) \ | |
4705 | CMP \ | |
4706 | aarch64_get_vec_##SOURCE##64 (cpu, vm, i) \ | |
4707 | ? -1ULL : 0); \ | |
4708 | return; \ | |
2e8cf49e NC |
4709 | } \ |
4710 | } \ | |
4711 | while (0) | |
4712 | ||
4713 | #define VEC_CMP0(SOURCE, CMP) \ | |
4714 | do \ | |
4715 | { \ | |
4716 | switch (size) \ | |
4717 | { \ | |
4718 | case 0: \ | |
4719 | for (i = 0; i < (full ? 16 : 8); i++) \ | |
4720 | aarch64_set_vec_u8 (cpu, vd, i, \ | |
4721 | aarch64_get_vec_##SOURCE##8 (cpu, vn, i) \ | |
4722 | CMP 0 ? -1 : 0); \ | |
4723 | return; \ | |
4724 | case 1: \ | |
4725 | for (i = 0; i < (full ? 8 : 4); i++) \ | |
4726 | aarch64_set_vec_u16 (cpu, vd, i, \ | |
4727 | aarch64_get_vec_##SOURCE##16 (cpu, vn, i) \ | |
4728 | CMP 0 ? -1 : 0); \ | |
4729 | return; \ | |
4730 | case 2: \ | |
4731 | for (i = 0; i < (full ? 4 : 2); i++) \ | |
4732 | aarch64_set_vec_u32 (cpu, vd, i, \ | |
4733 | aarch64_get_vec_##SOURCE##32 (cpu, vn, i) \ | |
4734 | CMP 0 ? -1 : 0); \ | |
4735 | return; \ | |
4736 | case 3: \ | |
4737 | if (! full) \ | |
4738 | HALT_UNALLOC; \ | |
4739 | for (i = 0; i < 2; i++) \ | |
4740 | aarch64_set_vec_u64 (cpu, vd, i, \ | |
4741 | aarch64_get_vec_##SOURCE##64 (cpu, vn, i) \ | |
4742 | CMP 0 ? -1ULL : 0); \ | |
4743 | return; \ | |
2e8cf49e NC |
4744 | } \ |
4745 | } \ | |
4746 | while (0) | |
4747 | ||
4748 | #define VEC_FCMP0(CMP) \ | |
4749 | do \ | |
4750 | { \ | |
4751 | if (vm != 0) \ | |
4752 | HALT_NYI; \ | |
2cdad34c | 4753 | if (INSTR (22, 22)) \ |
2e8cf49e NC |
4754 | { \ |
4755 | if (! full) \ | |
4756 | HALT_NYI; \ | |
4757 | for (i = 0; i < 2; i++) \ | |
4758 | aarch64_set_vec_u64 (cpu, vd, i, \ | |
4759 | aarch64_get_vec_double (cpu, vn, i) \ | |
4760 | CMP 0.0 ? -1 : 0); \ | |
4761 | } \ | |
4762 | else \ | |
4763 | { \ | |
4764 | for (i = 0; i < (full ? 4 : 2); i++) \ | |
4765 | aarch64_set_vec_u32 (cpu, vd, i, \ | |
4766 | aarch64_get_vec_float (cpu, vn, i) \ | |
4767 | CMP 0.0 ? -1 : 0); \ | |
4768 | } \ | |
4769 | return; \ | |
4770 | } \ | |
4771 | while (0) | |
4772 | ||
4773 | #define VEC_FCMP(CMP) \ | |
4774 | do \ | |
4775 | { \ | |
2cdad34c | 4776 | if (INSTR (22, 22)) \ |
2e8cf49e NC |
4777 | { \ |
4778 | if (! full) \ | |
4779 | HALT_NYI; \ | |
4780 | for (i = 0; i < 2; i++) \ | |
4781 | aarch64_set_vec_u64 (cpu, vd, i, \ | |
4782 | aarch64_get_vec_double (cpu, vn, i) \ | |
4783 | CMP \ | |
4784 | aarch64_get_vec_double (cpu, vm, i) \ | |
4785 | ? -1 : 0); \ | |
4786 | } \ | |
4787 | else \ | |
4788 | { \ | |
4789 | for (i = 0; i < (full ? 4 : 2); i++) \ | |
4790 | aarch64_set_vec_u32 (cpu, vd, i, \ | |
4791 | aarch64_get_vec_float (cpu, vn, i) \ | |
4792 | CMP \ | |
4793 | aarch64_get_vec_float (cpu, vm, i) \ | |
4794 | ? -1 : 0); \ | |
4795 | } \ | |
4796 | return; \ | |
4797 | } \ | |
4798 | while (0) | |
4799 | ||
4800 | static void | |
4801 | do_vec_compare (sim_cpu *cpu) | |
4802 | { | |
4803 | /* instr[31] = 0 | |
4804 | instr[30] = half(0)/full(1) | |
4805 | instr[29] = part-of-comparison-type | |
4806 | instr[28,24] = 0 1110 | |
4807 | instr[23,22] = size of integer compares: byte(00), half(01), word (10), long (11) | |
4808 | type of float compares: single (-0) / double (-1) | |
4809 | instr[21] = 1 | |
4810 | instr[20,16] = Vm or 00000 (compare vs 0) | |
4811 | instr[15,10] = part-of-comparison-type | |
4812 | instr[9,5] = Vn | |
4813 | instr[4.0] = Vd. */ | |
4814 | ||
ef0d8ffc NC |
4815 | int full = INSTR (30, 30); |
4816 | int size = INSTR (23, 22); | |
4817 | unsigned vm = INSTR (20, 16); | |
4818 | unsigned vn = INSTR (9, 5); | |
4819 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
4820 | unsigned i; |
4821 | ||
4822 | NYI_assert (28, 24, 0x0E); | |
4823 | NYI_assert (21, 21, 1); | |
4824 | ||
2cdad34c | 4825 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc NC |
4826 | if ((INSTR (11, 11) |
4827 | && INSTR (14, 14)) | |
4828 | || ((INSTR (11, 11) == 0 | |
4829 | && INSTR (10, 10) == 0))) | |
2e8cf49e NC |
4830 | { |
4831 | /* A compare vs 0. */ | |
4832 | if (vm != 0) | |
4833 | { | |
ef0d8ffc | 4834 | if (INSTR (15, 10) == 0x2A) |
2e8cf49e | 4835 | do_vec_maxv (cpu); |
ef0d8ffc NC |
4836 | else if (INSTR (15, 10) == 0x32 |
4837 | || INSTR (15, 10) == 0x3E) | |
2e8cf49e | 4838 | do_vec_fminmaxV (cpu); |
ef0d8ffc NC |
4839 | else if (INSTR (29, 23) == 0x1C |
4840 | && INSTR (21, 10) == 0x876) | |
2e8cf49e NC |
4841 | do_vec_SCVTF (cpu); |
4842 | else | |
4843 | HALT_NYI; | |
4844 | return; | |
4845 | } | |
4846 | } | |
4847 | ||
ef0d8ffc | 4848 | if (INSTR (14, 14)) |
2e8cf49e NC |
4849 | { |
4850 | /* A floating point compare. */ | |
7517e550 | 4851 | unsigned decode = (INSTR (29, 29) << 5) | (INSTR (23, 23) << 4) |
ef0d8ffc | 4852 | | INSTR (13, 10); |
2e8cf49e NC |
4853 | |
4854 | NYI_assert (15, 15, 1); | |
4855 | ||
4856 | switch (decode) | |
4857 | { | |
4858 | case /* 0b010010: GT#0 */ 0x12: VEC_FCMP0 (>); | |
4859 | case /* 0b110010: GE#0 */ 0x32: VEC_FCMP0 (>=); | |
4860 | case /* 0b010110: EQ#0 */ 0x16: VEC_FCMP0 (==); | |
4861 | case /* 0b110110: LE#0 */ 0x36: VEC_FCMP0 (<=); | |
4862 | case /* 0b011010: LT#0 */ 0x1A: VEC_FCMP0 (<); | |
4863 | case /* 0b111001: GT */ 0x39: VEC_FCMP (>); | |
4864 | case /* 0b101001: GE */ 0x29: VEC_FCMP (>=); | |
4865 | case /* 0b001001: EQ */ 0x09: VEC_FCMP (==); | |
4866 | ||
4867 | default: | |
4868 | HALT_NYI; | |
4869 | } | |
4870 | } | |
4871 | else | |
4872 | { | |
7517e550 | 4873 | unsigned decode = (INSTR (29, 29) << 6) | INSTR (15, 10); |
2e8cf49e NC |
4874 | |
4875 | switch (decode) | |
4876 | { | |
4877 | case 0x0D: /* 0001101 GT */ VEC_CMP (s, > ); | |
4878 | case 0x0F: /* 0001111 GE */ VEC_CMP (s, >= ); | |
4879 | case 0x22: /* 0100010 GT #0 */ VEC_CMP0 (s, > ); | |
fbf32f63 | 4880 | case 0x23: /* 0100011 TST */ VEC_CMP (u, & ); |
2e8cf49e NC |
4881 | case 0x26: /* 0100110 EQ #0 */ VEC_CMP0 (s, == ); |
4882 | case 0x2A: /* 0101010 LT #0 */ VEC_CMP0 (s, < ); | |
4883 | case 0x4D: /* 1001101 HI */ VEC_CMP (u, > ); | |
4884 | case 0x4F: /* 1001111 HS */ VEC_CMP (u, >= ); | |
4885 | case 0x62: /* 1100010 GE #0 */ VEC_CMP0 (s, >= ); | |
4886 | case 0x63: /* 1100011 EQ */ VEC_CMP (u, == ); | |
4887 | case 0x66: /* 1100110 LE #0 */ VEC_CMP0 (s, <= ); | |
4888 | default: | |
4889 | if (vm == 0) | |
4890 | HALT_NYI; | |
4891 | do_vec_maxv (cpu); | |
4892 | } | |
4893 | } | |
4894 | } | |
4895 | ||
4896 | static void | |
4897 | do_vec_SSHL (sim_cpu *cpu) | |
4898 | { | |
4899 | /* instr[31] = 0 | |
4900 | instr[30] = first part (0)/ second part (1) | |
4901 | instr[29,24] = 00 1110 | |
4902 | instr[23,22] = size: byte(00), half(01), word (10), long (11) | |
4903 | instr[21] = 1 | |
4904 | instr[20,16] = Vm | |
4905 | instr[15,10] = 0100 01 | |
4906 | instr[9,5] = Vn | |
4907 | instr[4,0] = Vd. */ | |
4908 | ||
ef0d8ffc NC |
4909 | unsigned full = INSTR (30, 30); |
4910 | unsigned vm = INSTR (20, 16); | |
4911 | unsigned vn = INSTR (9, 5); | |
4912 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4913 | unsigned i; |
5ab6d79e | 4914 | signed int shift; |
2e8cf49e NC |
4915 | |
4916 | NYI_assert (29, 24, 0x0E); | |
4917 | NYI_assert (21, 21, 1); | |
4918 | NYI_assert (15, 10, 0x11); | |
4919 | ||
4920 | /* FIXME: What is a signed shift left in this context ?. */ | |
4921 | ||
2cdad34c | 4922 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 4923 | switch (INSTR (23, 22)) |
2e8cf49e NC |
4924 | { |
4925 | case 0: | |
4926 | for (i = 0; i < (full ? 16 : 8); i++) | |
5ab6d79e NC |
4927 | { |
4928 | shift = aarch64_get_vec_s8 (cpu, vm, i); | |
4929 | if (shift >= 0) | |
4930 | aarch64_set_vec_s8 (cpu, vd, i, aarch64_get_vec_s8 (cpu, vn, i) | |
4931 | << shift); | |
4932 | else | |
4933 | aarch64_set_vec_s8 (cpu, vd, i, aarch64_get_vec_s8 (cpu, vn, i) | |
4934 | >> - shift); | |
4935 | } | |
2e8cf49e NC |
4936 | return; |
4937 | ||
4938 | case 1: | |
4939 | for (i = 0; i < (full ? 8 : 4); i++) | |
5ab6d79e | 4940 | { |
7517e550 | 4941 | shift = aarch64_get_vec_s8 (cpu, vm, i * 2); |
5ab6d79e NC |
4942 | if (shift >= 0) |
4943 | aarch64_set_vec_s16 (cpu, vd, i, aarch64_get_vec_s16 (cpu, vn, i) | |
4944 | << shift); | |
4945 | else | |
4946 | aarch64_set_vec_s16 (cpu, vd, i, aarch64_get_vec_s16 (cpu, vn, i) | |
4947 | >> - shift); | |
4948 | } | |
2e8cf49e NC |
4949 | return; |
4950 | ||
4951 | case 2: | |
4952 | for (i = 0; i < (full ? 4 : 2); i++) | |
5ab6d79e | 4953 | { |
7517e550 | 4954 | shift = aarch64_get_vec_s8 (cpu, vm, i * 4); |
5ab6d79e NC |
4955 | if (shift >= 0) |
4956 | aarch64_set_vec_s32 (cpu, vd, i, aarch64_get_vec_s32 (cpu, vn, i) | |
4957 | << shift); | |
4958 | else | |
4959 | aarch64_set_vec_s32 (cpu, vd, i, aarch64_get_vec_s32 (cpu, vn, i) | |
4960 | >> - shift); | |
4961 | } | |
2e8cf49e NC |
4962 | return; |
4963 | ||
4964 | case 3: | |
4965 | if (! full) | |
4966 | HALT_UNALLOC; | |
4967 | for (i = 0; i < 2; i++) | |
5ab6d79e | 4968 | { |
7517e550 | 4969 | shift = aarch64_get_vec_s8 (cpu, vm, i * 8); |
5ab6d79e NC |
4970 | if (shift >= 0) |
4971 | aarch64_set_vec_s64 (cpu, vd, i, aarch64_get_vec_s64 (cpu, vn, i) | |
4972 | << shift); | |
4973 | else | |
4974 | aarch64_set_vec_s64 (cpu, vd, i, aarch64_get_vec_s64 (cpu, vn, i) | |
4975 | >> - shift); | |
4976 | } | |
2e8cf49e | 4977 | return; |
2e8cf49e NC |
4978 | } |
4979 | } | |
4980 | ||
4981 | static void | |
4982 | do_vec_USHL (sim_cpu *cpu) | |
4983 | { | |
4984 | /* instr[31] = 0 | |
4985 | instr[30] = first part (0)/ second part (1) | |
4986 | instr[29,24] = 10 1110 | |
4987 | instr[23,22] = size: byte(00), half(01), word (10), long (11) | |
4988 | instr[21] = 1 | |
4989 | instr[20,16] = Vm | |
4990 | instr[15,10] = 0100 01 | |
4991 | instr[9,5] = Vn | |
4992 | instr[4,0] = Vd */ | |
4993 | ||
ef0d8ffc NC |
4994 | unsigned full = INSTR (30, 30); |
4995 | unsigned vm = INSTR (20, 16); | |
4996 | unsigned vn = INSTR (9, 5); | |
4997 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 4998 | unsigned i; |
5ab6d79e | 4999 | signed int shift; |
2e8cf49e NC |
5000 | |
5001 | NYI_assert (29, 24, 0x2E); | |
5002 | NYI_assert (15, 10, 0x11); | |
5003 | ||
2cdad34c | 5004 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5005 | switch (INSTR (23, 22)) |
2e8cf49e NC |
5006 | { |
5007 | case 0: | |
5ab6d79e NC |
5008 | for (i = 0; i < (full ? 16 : 8); i++) |
5009 | { | |
5010 | shift = aarch64_get_vec_s8 (cpu, vm, i); | |
5011 | if (shift >= 0) | |
5012 | aarch64_set_vec_u8 (cpu, vd, i, aarch64_get_vec_u8 (cpu, vn, i) | |
5013 | << shift); | |
5014 | else | |
5015 | aarch64_set_vec_u8 (cpu, vd, i, aarch64_get_vec_u8 (cpu, vn, i) | |
5016 | >> - shift); | |
5017 | } | |
2e8cf49e NC |
5018 | return; |
5019 | ||
5020 | case 1: | |
5021 | for (i = 0; i < (full ? 8 : 4); i++) | |
5ab6d79e | 5022 | { |
7517e550 | 5023 | shift = aarch64_get_vec_s8 (cpu, vm, i * 2); |
5ab6d79e NC |
5024 | if (shift >= 0) |
5025 | aarch64_set_vec_u16 (cpu, vd, i, aarch64_get_vec_u16 (cpu, vn, i) | |
5026 | << shift); | |
5027 | else | |
5028 | aarch64_set_vec_u16 (cpu, vd, i, aarch64_get_vec_u16 (cpu, vn, i) | |
5029 | >> - shift); | |
5030 | } | |
2e8cf49e NC |
5031 | return; |
5032 | ||
5033 | case 2: | |
5034 | for (i = 0; i < (full ? 4 : 2); i++) | |
5ab6d79e | 5035 | { |
7517e550 | 5036 | shift = aarch64_get_vec_s8 (cpu, vm, i * 4); |
5ab6d79e NC |
5037 | if (shift >= 0) |
5038 | aarch64_set_vec_u32 (cpu, vd, i, aarch64_get_vec_u32 (cpu, vn, i) | |
5039 | << shift); | |
5040 | else | |
5041 | aarch64_set_vec_u32 (cpu, vd, i, aarch64_get_vec_u32 (cpu, vn, i) | |
5042 | >> - shift); | |
5043 | } | |
2e8cf49e NC |
5044 | return; |
5045 | ||
5046 | case 3: | |
5047 | if (! full) | |
5048 | HALT_UNALLOC; | |
5049 | for (i = 0; i < 2; i++) | |
5ab6d79e | 5050 | { |
7517e550 | 5051 | shift = aarch64_get_vec_s8 (cpu, vm, i * 8); |
5ab6d79e NC |
5052 | if (shift >= 0) |
5053 | aarch64_set_vec_u64 (cpu, vd, i, aarch64_get_vec_u64 (cpu, vn, i) | |
5054 | << shift); | |
5055 | else | |
5056 | aarch64_set_vec_u64 (cpu, vd, i, aarch64_get_vec_u64 (cpu, vn, i) | |
5057 | >> - shift); | |
5058 | } | |
2e8cf49e | 5059 | return; |
2e8cf49e NC |
5060 | } |
5061 | } | |
5062 | ||
5063 | static void | |
5064 | do_vec_FMLA (sim_cpu *cpu) | |
5065 | { | |
5066 | /* instr[31] = 0 | |
5067 | instr[30] = full/half selector | |
5068 | instr[29,23] = 0011100 | |
5069 | instr[22] = size: 0=>float, 1=>double | |
5070 | instr[21] = 1 | |
5071 | instr[20,16] = Vn | |
5072 | instr[15,10] = 1100 11 | |
5073 | instr[9,5] = Vm | |
5074 | instr[4.0] = Vd. */ | |
5075 | ||
ef0d8ffc NC |
5076 | unsigned vm = INSTR (20, 16); |
5077 | unsigned vn = INSTR (9, 5); | |
5078 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 5079 | unsigned i; |
ef0d8ffc | 5080 | int full = INSTR (30, 30); |
2e8cf49e NC |
5081 | |
5082 | NYI_assert (29, 23, 0x1C); | |
5083 | NYI_assert (21, 21, 1); | |
5084 | NYI_assert (15, 10, 0x33); | |
5085 | ||
2cdad34c | 5086 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5087 | if (INSTR (22, 22)) |
2e8cf49e NC |
5088 | { |
5089 | if (! full) | |
5090 | HALT_UNALLOC; | |
5091 | for (i = 0; i < 2; i++) | |
5092 | aarch64_set_vec_double (cpu, vd, i, | |
5093 | aarch64_get_vec_double (cpu, vn, i) * | |
5094 | aarch64_get_vec_double (cpu, vm, i) + | |
5095 | aarch64_get_vec_double (cpu, vd, i)); | |
5096 | } | |
5097 | else | |
5098 | { | |
5099 | for (i = 0; i < (full ? 4 : 2); i++) | |
5100 | aarch64_set_vec_float (cpu, vd, i, | |
5101 | aarch64_get_vec_float (cpu, vn, i) * | |
5102 | aarch64_get_vec_float (cpu, vm, i) + | |
5103 | aarch64_get_vec_float (cpu, vd, i)); | |
5104 | } | |
5105 | } | |
5106 | ||
5107 | static void | |
5108 | do_vec_max (sim_cpu *cpu) | |
5109 | { | |
5110 | /* instr[31] = 0 | |
5111 | instr[30] = full/half selector | |
5112 | instr[29] = SMAX (0) / UMAX (1) | |
5113 | instr[28,24] = 0 1110 | |
5114 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit | |
5115 | instr[21] = 1 | |
5116 | instr[20,16] = Vn | |
5117 | instr[15,10] = 0110 01 | |
5118 | instr[9,5] = Vm | |
5119 | instr[4.0] = Vd. */ | |
5120 | ||
ef0d8ffc NC |
5121 | unsigned vm = INSTR (20, 16); |
5122 | unsigned vn = INSTR (9, 5); | |
5123 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 5124 | unsigned i; |
ef0d8ffc | 5125 | int full = INSTR (30, 30); |
2e8cf49e NC |
5126 | |
5127 | NYI_assert (28, 24, 0x0E); | |
5128 | NYI_assert (21, 21, 1); | |
5129 | NYI_assert (15, 10, 0x19); | |
5130 | ||
2cdad34c | 5131 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5132 | if (INSTR (29, 29)) |
2e8cf49e | 5133 | { |
ef0d8ffc | 5134 | switch (INSTR (23, 22)) |
2e8cf49e NC |
5135 | { |
5136 | case 0: | |
5137 | for (i = 0; i < (full ? 16 : 8); i++) | |
5138 | aarch64_set_vec_u8 (cpu, vd, i, | |
5139 | aarch64_get_vec_u8 (cpu, vn, i) | |
5140 | > aarch64_get_vec_u8 (cpu, vm, i) | |
5141 | ? aarch64_get_vec_u8 (cpu, vn, i) | |
5142 | : aarch64_get_vec_u8 (cpu, vm, i)); | |
5143 | return; | |
5144 | ||
5145 | case 1: | |
5146 | for (i = 0; i < (full ? 8 : 4); i++) | |
5147 | aarch64_set_vec_u16 (cpu, vd, i, | |
5148 | aarch64_get_vec_u16 (cpu, vn, i) | |
5149 | > aarch64_get_vec_u16 (cpu, vm, i) | |
5150 | ? aarch64_get_vec_u16 (cpu, vn, i) | |
5151 | : aarch64_get_vec_u16 (cpu, vm, i)); | |
5152 | return; | |
5153 | ||
5154 | case 2: | |
5155 | for (i = 0; i < (full ? 4 : 2); i++) | |
5156 | aarch64_set_vec_u32 (cpu, vd, i, | |
5157 | aarch64_get_vec_u32 (cpu, vn, i) | |
5158 | > aarch64_get_vec_u32 (cpu, vm, i) | |
5159 | ? aarch64_get_vec_u32 (cpu, vn, i) | |
5160 | : aarch64_get_vec_u32 (cpu, vm, i)); | |
5161 | return; | |
5162 | ||
2e8cf49e NC |
5163 | case 3: |
5164 | HALT_UNALLOC; | |
5165 | } | |
5166 | } | |
5167 | else | |
5168 | { | |
ef0d8ffc | 5169 | switch (INSTR (23, 22)) |
2e8cf49e NC |
5170 | { |
5171 | case 0: | |
5172 | for (i = 0; i < (full ? 16 : 8); i++) | |
5173 | aarch64_set_vec_s8 (cpu, vd, i, | |
5174 | aarch64_get_vec_s8 (cpu, vn, i) | |
5175 | > aarch64_get_vec_s8 (cpu, vm, i) | |
5176 | ? aarch64_get_vec_s8 (cpu, vn, i) | |
5177 | : aarch64_get_vec_s8 (cpu, vm, i)); | |
5178 | return; | |
5179 | ||
5180 | case 1: | |
5181 | for (i = 0; i < (full ? 8 : 4); i++) | |
5182 | aarch64_set_vec_s16 (cpu, vd, i, | |
5183 | aarch64_get_vec_s16 (cpu, vn, i) | |
5184 | > aarch64_get_vec_s16 (cpu, vm, i) | |
5185 | ? aarch64_get_vec_s16 (cpu, vn, i) | |
5186 | : aarch64_get_vec_s16 (cpu, vm, i)); | |
5187 | return; | |
5188 | ||
5189 | case 2: | |
5190 | for (i = 0; i < (full ? 4 : 2); i++) | |
5191 | aarch64_set_vec_s32 (cpu, vd, i, | |
5192 | aarch64_get_vec_s32 (cpu, vn, i) | |
5193 | > aarch64_get_vec_s32 (cpu, vm, i) | |
5194 | ? aarch64_get_vec_s32 (cpu, vn, i) | |
5195 | : aarch64_get_vec_s32 (cpu, vm, i)); | |
5196 | return; | |
5197 | ||
2e8cf49e NC |
5198 | case 3: |
5199 | HALT_UNALLOC; | |
5200 | } | |
5201 | } | |
5202 | } | |
5203 | ||
5204 | static void | |
5205 | do_vec_min (sim_cpu *cpu) | |
5206 | { | |
5207 | /* instr[31] = 0 | |
5208 | instr[30] = full/half selector | |
5209 | instr[29] = SMIN (0) / UMIN (1) | |
5210 | instr[28,24] = 0 1110 | |
5211 | instr[23,22] = size: 00=> 8-bit, 01=> 16-bit, 10=> 32-bit | |
5212 | instr[21] = 1 | |
5213 | instr[20,16] = Vn | |
5214 | instr[15,10] = 0110 11 | |
5215 | instr[9,5] = Vm | |
5216 | instr[4.0] = Vd. */ | |
5217 | ||
ef0d8ffc NC |
5218 | unsigned vm = INSTR (20, 16); |
5219 | unsigned vn = INSTR (9, 5); | |
5220 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 5221 | unsigned i; |
ef0d8ffc | 5222 | int full = INSTR (30, 30); |
2e8cf49e NC |
5223 | |
5224 | NYI_assert (28, 24, 0x0E); | |
5225 | NYI_assert (21, 21, 1); | |
5226 | NYI_assert (15, 10, 0x1B); | |
5227 | ||
2cdad34c | 5228 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5229 | if (INSTR (29, 29)) |
2e8cf49e | 5230 | { |
ef0d8ffc | 5231 | switch (INSTR (23, 22)) |
2e8cf49e NC |
5232 | { |
5233 | case 0: | |
5234 | for (i = 0; i < (full ? 16 : 8); i++) | |
5235 | aarch64_set_vec_u8 (cpu, vd, i, | |
5236 | aarch64_get_vec_u8 (cpu, vn, i) | |
5237 | < aarch64_get_vec_u8 (cpu, vm, i) | |
5238 | ? aarch64_get_vec_u8 (cpu, vn, i) | |
5239 | : aarch64_get_vec_u8 (cpu, vm, i)); | |
5240 | return; | |
5241 | ||
5242 | case 1: | |
5243 | for (i = 0; i < (full ? 8 : 4); i++) | |
5244 | aarch64_set_vec_u16 (cpu, vd, i, | |
5245 | aarch64_get_vec_u16 (cpu, vn, i) | |
5246 | < aarch64_get_vec_u16 (cpu, vm, i) | |
5247 | ? aarch64_get_vec_u16 (cpu, vn, i) | |
5248 | : aarch64_get_vec_u16 (cpu, vm, i)); | |
5249 | return; | |
5250 | ||
5251 | case 2: | |
5252 | for (i = 0; i < (full ? 4 : 2); i++) | |
5253 | aarch64_set_vec_u32 (cpu, vd, i, | |
5254 | aarch64_get_vec_u32 (cpu, vn, i) | |
5255 | < aarch64_get_vec_u32 (cpu, vm, i) | |
5256 | ? aarch64_get_vec_u32 (cpu, vn, i) | |
5257 | : aarch64_get_vec_u32 (cpu, vm, i)); | |
5258 | return; | |
5259 | ||
2e8cf49e NC |
5260 | case 3: |
5261 | HALT_UNALLOC; | |
5262 | } | |
5263 | } | |
5264 | else | |
5265 | { | |
ef0d8ffc | 5266 | switch (INSTR (23, 22)) |
2e8cf49e NC |
5267 | { |
5268 | case 0: | |
5269 | for (i = 0; i < (full ? 16 : 8); i++) | |
5270 | aarch64_set_vec_s8 (cpu, vd, i, | |
5271 | aarch64_get_vec_s8 (cpu, vn, i) | |
5272 | < aarch64_get_vec_s8 (cpu, vm, i) | |
5273 | ? aarch64_get_vec_s8 (cpu, vn, i) | |
5274 | : aarch64_get_vec_s8 (cpu, vm, i)); | |
5275 | return; | |
5276 | ||
5277 | case 1: | |
5278 | for (i = 0; i < (full ? 8 : 4); i++) | |
5279 | aarch64_set_vec_s16 (cpu, vd, i, | |
5280 | aarch64_get_vec_s16 (cpu, vn, i) | |
5281 | < aarch64_get_vec_s16 (cpu, vm, i) | |
5282 | ? aarch64_get_vec_s16 (cpu, vn, i) | |
5283 | : aarch64_get_vec_s16 (cpu, vm, i)); | |
5284 | return; | |
5285 | ||
5286 | case 2: | |
5287 | for (i = 0; i < (full ? 4 : 2); i++) | |
5288 | aarch64_set_vec_s32 (cpu, vd, i, | |
5289 | aarch64_get_vec_s32 (cpu, vn, i) | |
5290 | < aarch64_get_vec_s32 (cpu, vm, i) | |
5291 | ? aarch64_get_vec_s32 (cpu, vn, i) | |
5292 | : aarch64_get_vec_s32 (cpu, vm, i)); | |
5293 | return; | |
5294 | ||
2e8cf49e NC |
5295 | case 3: |
5296 | HALT_UNALLOC; | |
5297 | } | |
5298 | } | |
5299 | } | |
5300 | ||
5301 | static void | |
5302 | do_vec_sub_long (sim_cpu *cpu) | |
5303 | { | |
5304 | /* instr[31] = 0 | |
5305 | instr[30] = lower (0) / upper (1) | |
5306 | instr[29] = signed (0) / unsigned (1) | |
5307 | instr[28,24] = 0 1110 | |
5308 | instr[23,22] = size: bytes (00), half (01), word (10) | |
5309 | instr[21] = 1 | |
5310 | insrt[20,16] = Vm | |
5311 | instr[15,10] = 0010 00 | |
5312 | instr[9,5] = Vn | |
5313 | instr[4,0] = V dest. */ | |
5314 | ||
ef0d8ffc NC |
5315 | unsigned size = INSTR (23, 22); |
5316 | unsigned vm = INSTR (20, 16); | |
5317 | unsigned vn = INSTR (9, 5); | |
5318 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
5319 | unsigned bias = 0; |
5320 | unsigned i; | |
5321 | ||
5322 | NYI_assert (28, 24, 0x0E); | |
5323 | NYI_assert (21, 21, 1); | |
5324 | NYI_assert (15, 10, 0x08); | |
5325 | ||
5326 | if (size == 3) | |
5327 | HALT_UNALLOC; | |
5328 | ||
2cdad34c | 5329 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5330 | switch (INSTR (30, 29)) |
2e8cf49e NC |
5331 | { |
5332 | case 2: /* SSUBL2. */ | |
5333 | bias = 2; | |
5334 | case 0: /* SSUBL. */ | |
5335 | switch (size) | |
5336 | { | |
5337 | case 0: | |
5338 | bias *= 3; | |
5339 | for (i = 0; i < 8; i++) | |
5340 | aarch64_set_vec_s16 (cpu, vd, i, | |
5341 | aarch64_get_vec_s8 (cpu, vn, i + bias) | |
5342 | - aarch64_get_vec_s8 (cpu, vm, i + bias)); | |
5343 | break; | |
5344 | ||
5345 | case 1: | |
5346 | bias *= 2; | |
5347 | for (i = 0; i < 4; i++) | |
5348 | aarch64_set_vec_s32 (cpu, vd, i, | |
5349 | aarch64_get_vec_s16 (cpu, vn, i + bias) | |
5350 | - aarch64_get_vec_s16 (cpu, vm, i + bias)); | |
5351 | break; | |
5352 | ||
5353 | case 2: | |
5354 | for (i = 0; i < 2; i++) | |
5355 | aarch64_set_vec_s64 (cpu, vd, i, | |
5356 | aarch64_get_vec_s32 (cpu, vn, i + bias) | |
5357 | - aarch64_get_vec_s32 (cpu, vm, i + bias)); | |
5358 | break; | |
5359 | ||
5360 | default: | |
5361 | HALT_UNALLOC; | |
5362 | } | |
5363 | break; | |
5364 | ||
5365 | case 3: /* USUBL2. */ | |
5366 | bias = 2; | |
5367 | case 1: /* USUBL. */ | |
5368 | switch (size) | |
5369 | { | |
5370 | case 0: | |
5371 | bias *= 3; | |
5372 | for (i = 0; i < 8; i++) | |
5373 | aarch64_set_vec_u16 (cpu, vd, i, | |
5374 | aarch64_get_vec_u8 (cpu, vn, i + bias) | |
5375 | - aarch64_get_vec_u8 (cpu, vm, i + bias)); | |
5376 | break; | |
5377 | ||
5378 | case 1: | |
5379 | bias *= 2; | |
5380 | for (i = 0; i < 4; i++) | |
5381 | aarch64_set_vec_u32 (cpu, vd, i, | |
5382 | aarch64_get_vec_u16 (cpu, vn, i + bias) | |
5383 | - aarch64_get_vec_u16 (cpu, vm, i + bias)); | |
5384 | break; | |
5385 | ||
5386 | case 2: | |
5387 | for (i = 0; i < 2; i++) | |
5388 | aarch64_set_vec_u64 (cpu, vd, i, | |
5389 | aarch64_get_vec_u32 (cpu, vn, i + bias) | |
5390 | - aarch64_get_vec_u32 (cpu, vm, i + bias)); | |
5391 | break; | |
5392 | ||
5393 | default: | |
5394 | HALT_UNALLOC; | |
5395 | } | |
5396 | break; | |
5397 | } | |
5398 | } | |
5399 | ||
2e8cf49e NC |
5400 | static void |
5401 | do_vec_ADDP (sim_cpu *cpu) | |
5402 | { | |
5403 | /* instr[31] = 0 | |
5404 | instr[30] = half(0)/full(1) | |
5405 | instr[29,24] = 00 1110 | |
5406 | instr[23,22] = size: bytes (00), half (01), word (10), long (11) | |
5407 | instr[21] = 1 | |
5408 | insrt[20,16] = Vm | |
5409 | instr[15,10] = 1011 11 | |
5410 | instr[9,5] = Vn | |
5411 | instr[4,0] = V dest. */ | |
5412 | ||
57aa1742 NC |
5413 | FRegister copy_vn; |
5414 | FRegister copy_vm; | |
ef0d8ffc NC |
5415 | unsigned full = INSTR (30, 30); |
5416 | unsigned size = INSTR (23, 22); | |
5417 | unsigned vm = INSTR (20, 16); | |
5418 | unsigned vn = INSTR (9, 5); | |
5419 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
5420 | unsigned i, range; |
5421 | ||
5422 | NYI_assert (29, 24, 0x0E); | |
5423 | NYI_assert (21, 21, 1); | |
5424 | NYI_assert (15, 10, 0x2F); | |
5425 | ||
57aa1742 NC |
5426 | /* Make copies of the source registers in case vd == vn/vm. */ |
5427 | copy_vn = cpu->fr[vn]; | |
5428 | copy_vm = cpu->fr[vm]; | |
5429 | ||
2cdad34c | 5430 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
5431 | switch (size) |
5432 | { | |
5433 | case 0: | |
5434 | range = full ? 8 : 4; | |
57aa1742 NC |
5435 | for (i = 0; i < range; i++) |
5436 | { | |
5437 | aarch64_set_vec_u8 (cpu, vd, i, | |
5438 | copy_vn.b[i * 2] + copy_vn.b[i * 2 + 1]); | |
5439 | aarch64_set_vec_u8 (cpu, vd, i + range, | |
5440 | copy_vm.b[i * 2] + copy_vm.b[i * 2 + 1]); | |
5441 | } | |
2e8cf49e NC |
5442 | return; |
5443 | ||
5444 | case 1: | |
5445 | range = full ? 4 : 2; | |
57aa1742 NC |
5446 | for (i = 0; i < range; i++) |
5447 | { | |
5448 | aarch64_set_vec_u16 (cpu, vd, i, | |
5449 | copy_vn.h[i * 2] + copy_vn.h[i * 2 + 1]); | |
5450 | aarch64_set_vec_u16 (cpu, vd, i + range, | |
5451 | copy_vm.h[i * 2] + copy_vm.h[i * 2 + 1]); | |
5452 | } | |
2e8cf49e NC |
5453 | return; |
5454 | ||
5455 | case 2: | |
5456 | range = full ? 2 : 1; | |
57aa1742 NC |
5457 | for (i = 0; i < range; i++) |
5458 | { | |
5459 | aarch64_set_vec_u32 (cpu, vd, i, | |
5460 | copy_vn.w[i * 2] + copy_vn.w[i * 2 + 1]); | |
5461 | aarch64_set_vec_u32 (cpu, vd, i + range, | |
5462 | copy_vm.w[i * 2] + copy_vm.w[i * 2 + 1]); | |
5463 | } | |
2e8cf49e NC |
5464 | return; |
5465 | ||
5466 | case 3: | |
5467 | if (! full) | |
5468 | HALT_UNALLOC; | |
57aa1742 NC |
5469 | aarch64_set_vec_u64 (cpu, vd, 0, copy_vn.v[0] + copy_vn.v[1]); |
5470 | aarch64_set_vec_u64 (cpu, vd, 1, copy_vm.v[0] + copy_vm.v[1]); | |
2e8cf49e | 5471 | return; |
2e8cf49e NC |
5472 | } |
5473 | } | |
5474 | ||
b630840c JW |
5475 | /* Float point vector convert to longer (precision). */ |
5476 | static void | |
5477 | do_vec_FCVTL (sim_cpu *cpu) | |
5478 | { | |
5479 | /* instr[31] = 0 | |
5480 | instr[30] = half (0) / all (1) | |
5481 | instr[29,23] = 00 1110 0 | |
5482 | instr[22] = single (0) / double (1) | |
5483 | instr[21,10] = 10 0001 0111 10 | |
5484 | instr[9,5] = Rn | |
5485 | instr[4,0] = Rd. */ | |
5486 | ||
5487 | unsigned rn = INSTR (9, 5); | |
5488 | unsigned rd = INSTR (4, 0); | |
5489 | unsigned full = INSTR (30, 30); | |
5490 | unsigned i; | |
5491 | ||
5492 | NYI_assert (31, 31, 0); | |
5493 | NYI_assert (29, 23, 0x1C); | |
5494 | NYI_assert (21, 10, 0x85E); | |
5495 | ||
5496 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
5497 | if (INSTR (22, 22)) | |
5498 | { | |
5499 | for (i = 0; i < 2; i++) | |
5500 | aarch64_set_vec_double (cpu, rd, i, | |
5501 | aarch64_get_vec_float (cpu, rn, i + 2*full)); | |
5502 | } | |
5503 | else | |
5504 | { | |
5505 | HALT_NYI; | |
5506 | ||
5507 | #if 0 | |
5508 | /* TODO: Implement missing half-float support. */ | |
5509 | for (i = 0; i < 4; i++) | |
5510 | aarch64_set_vec_float (cpu, rd, i, | |
5511 | aarch64_get_vec_halffloat (cpu, rn, i + 4*full)); | |
5512 | #endif | |
5513 | } | |
5514 | } | |
5515 | ||
2e8cf49e NC |
5516 | static void |
5517 | do_vec_FABS (sim_cpu *cpu) | |
5518 | { | |
5519 | /* instr[31] = 0 | |
5520 | instr[30] = half(0)/full(1) | |
5521 | instr[29,23] = 00 1110 1 | |
5522 | instr[22] = float(0)/double(1) | |
5523 | instr[21,16] = 10 0000 | |
5524 | instr[15,10] = 1111 10 | |
5525 | instr[9,5] = Vn | |
5526 | instr[4,0] = Vd. */ | |
5527 | ||
ef0d8ffc NC |
5528 | unsigned vn = INSTR (9, 5); |
5529 | unsigned vd = INSTR (4, 0); | |
5530 | unsigned full = INSTR (30, 30); | |
2e8cf49e NC |
5531 | unsigned i; |
5532 | ||
5533 | NYI_assert (29, 23, 0x1D); | |
5534 | NYI_assert (21, 10, 0x83E); | |
5535 | ||
2cdad34c | 5536 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5537 | if (INSTR (22, 22)) |
2e8cf49e NC |
5538 | { |
5539 | if (! full) | |
5540 | HALT_NYI; | |
5541 | ||
5542 | for (i = 0; i < 2; i++) | |
5543 | aarch64_set_vec_double (cpu, vd, i, | |
5544 | fabs (aarch64_get_vec_double (cpu, vn, i))); | |
5545 | } | |
5546 | else | |
5547 | { | |
5548 | for (i = 0; i < (full ? 4 : 2); i++) | |
5549 | aarch64_set_vec_float (cpu, vd, i, | |
5550 | fabsf (aarch64_get_vec_float (cpu, vn, i))); | |
5551 | } | |
5552 | } | |
5553 | ||
5554 | static void | |
5555 | do_vec_FCVTZS (sim_cpu *cpu) | |
5556 | { | |
5557 | /* instr[31] = 0 | |
5558 | instr[30] = half (0) / all (1) | |
5559 | instr[29,23] = 00 1110 1 | |
5560 | instr[22] = single (0) / double (1) | |
5561 | instr[21,10] = 10 0001 1011 10 | |
5562 | instr[9,5] = Rn | |
5563 | instr[4,0] = Rd. */ | |
5564 | ||
ef0d8ffc NC |
5565 | unsigned rn = INSTR (9, 5); |
5566 | unsigned rd = INSTR (4, 0); | |
5567 | unsigned full = INSTR (30, 30); | |
2e8cf49e NC |
5568 | unsigned i; |
5569 | ||
5570 | NYI_assert (31, 31, 0); | |
5571 | NYI_assert (29, 23, 0x1D); | |
5572 | NYI_assert (21, 10, 0x86E); | |
5573 | ||
2cdad34c | 5574 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5575 | if (INSTR (22, 22)) |
2e8cf49e NC |
5576 | { |
5577 | if (! full) | |
5578 | HALT_UNALLOC; | |
5579 | ||
5580 | for (i = 0; i < 2; i++) | |
5581 | aarch64_set_vec_s64 (cpu, rd, i, | |
5582 | (int64_t) aarch64_get_vec_double (cpu, rn, i)); | |
5583 | } | |
5584 | else | |
5585 | for (i = 0; i < (full ? 4 : 2); i++) | |
5586 | aarch64_set_vec_s32 (cpu, rd, i, | |
5587 | (int32_t) aarch64_get_vec_float (cpu, rn, i)); | |
5588 | } | |
5589 | ||
67f101ee NC |
5590 | static void |
5591 | do_vec_REV64 (sim_cpu *cpu) | |
5592 | { | |
5593 | /* instr[31] = 0 | |
5594 | instr[30] = full/half | |
5595 | instr[29,24] = 00 1110 | |
5596 | instr[23,22] = size | |
5597 | instr[21,10] = 10 0000 0000 10 | |
5598 | instr[9,5] = Rn | |
5599 | instr[4,0] = Rd. */ | |
5600 | ||
5601 | unsigned rn = INSTR (9, 5); | |
5602 | unsigned rd = INSTR (4, 0); | |
5603 | unsigned size = INSTR (23, 22); | |
5604 | unsigned full = INSTR (30, 30); | |
5605 | unsigned i; | |
5606 | FRegister val; | |
5607 | ||
5608 | NYI_assert (29, 24, 0x0E); | |
5609 | NYI_assert (21, 10, 0x802); | |
5610 | ||
2cdad34c | 5611 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
67f101ee NC |
5612 | switch (size) |
5613 | { | |
5614 | case 0: | |
5615 | for (i = 0; i < (full ? 16 : 8); i++) | |
5616 | val.b[i ^ 0x7] = aarch64_get_vec_u8 (cpu, rn, i); | |
5617 | break; | |
5618 | ||
5619 | case 1: | |
5620 | for (i = 0; i < (full ? 8 : 4); i++) | |
5621 | val.h[i ^ 0x3] = aarch64_get_vec_u16 (cpu, rn, i); | |
5622 | break; | |
5623 | ||
5624 | case 2: | |
5625 | for (i = 0; i < (full ? 4 : 2); i++) | |
5626 | val.w[i ^ 0x1] = aarch64_get_vec_u32 (cpu, rn, i); | |
5627 | break; | |
5628 | ||
5629 | case 3: | |
5630 | HALT_UNALLOC; | |
5631 | } | |
5632 | ||
5633 | aarch64_set_vec_u64 (cpu, rd, 0, val.v[0]); | |
5634 | if (full) | |
5635 | aarch64_set_vec_u64 (cpu, rd, 1, val.v[1]); | |
5636 | } | |
5637 | ||
5638 | static void | |
5639 | do_vec_REV16 (sim_cpu *cpu) | |
5640 | { | |
5641 | /* instr[31] = 0 | |
5642 | instr[30] = full/half | |
5643 | instr[29,24] = 00 1110 | |
5644 | instr[23,22] = size | |
5645 | instr[21,10] = 10 0000 0001 10 | |
5646 | instr[9,5] = Rn | |
5647 | instr[4,0] = Rd. */ | |
5648 | ||
5649 | unsigned rn = INSTR (9, 5); | |
5650 | unsigned rd = INSTR (4, 0); | |
5651 | unsigned size = INSTR (23, 22); | |
5652 | unsigned full = INSTR (30, 30); | |
5653 | unsigned i; | |
5654 | FRegister val; | |
5655 | ||
5656 | NYI_assert (29, 24, 0x0E); | |
5657 | NYI_assert (21, 10, 0x806); | |
5658 | ||
2cdad34c | 5659 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
67f101ee NC |
5660 | switch (size) |
5661 | { | |
5662 | case 0: | |
5663 | for (i = 0; i < (full ? 16 : 8); i++) | |
5664 | val.b[i ^ 0x1] = aarch64_get_vec_u8 (cpu, rn, i); | |
5665 | break; | |
5666 | ||
5667 | default: | |
5668 | HALT_UNALLOC; | |
5669 | } | |
5670 | ||
5671 | aarch64_set_vec_u64 (cpu, rd, 0, val.v[0]); | |
5672 | if (full) | |
5673 | aarch64_set_vec_u64 (cpu, rd, 1, val.v[1]); | |
5674 | } | |
5675 | ||
2e8cf49e NC |
5676 | static void |
5677 | do_vec_op1 (sim_cpu *cpu) | |
5678 | { | |
5679 | /* instr[31] = 0 | |
5680 | instr[30] = half/full | |
5681 | instr[29,24] = 00 1110 | |
5682 | instr[23,21] = ??? | |
5683 | instr[20,16] = Vm | |
5684 | instr[15,10] = sub-opcode | |
5685 | instr[9,5] = Vn | |
5686 | instr[4,0] = Vd */ | |
5687 | NYI_assert (29, 24, 0x0E); | |
5688 | ||
ef0d8ffc | 5689 | if (INSTR (21, 21) == 0) |
2e8cf49e | 5690 | { |
ef0d8ffc | 5691 | if (INSTR (23, 22) == 0) |
2e8cf49e | 5692 | { |
ef0d8ffc NC |
5693 | if (INSTR (30, 30) == 1 |
5694 | && INSTR (17, 14) == 0 | |
5695 | && INSTR (12, 10) == 7) | |
2e8cf49e NC |
5696 | return do_vec_ins_2 (cpu); |
5697 | ||
ef0d8ffc | 5698 | switch (INSTR (15, 10)) |
2e8cf49e NC |
5699 | { |
5700 | case 0x01: do_vec_DUP_vector_into_vector (cpu); return; | |
5701 | case 0x03: do_vec_DUP_scalar_into_vector (cpu); return; | |
5702 | case 0x07: do_vec_INS (cpu); return; | |
152e1e1b JW |
5703 | case 0x0B: do_vec_SMOV_into_scalar (cpu); return; |
5704 | case 0x0F: do_vec_UMOV_into_scalar (cpu); return; | |
2e8cf49e NC |
5705 | |
5706 | case 0x00: | |
5707 | case 0x08: | |
5708 | case 0x10: | |
5709 | case 0x18: | |
5710 | do_vec_TBL (cpu); return; | |
5711 | ||
5712 | case 0x06: | |
5713 | case 0x16: | |
5714 | do_vec_UZP (cpu); return; | |
5715 | ||
152e1e1b JW |
5716 | case 0x0A: do_vec_TRN (cpu); return; |
5717 | ||
2e8cf49e NC |
5718 | case 0x0E: |
5719 | case 0x1E: | |
5720 | do_vec_ZIP (cpu); return; | |
5721 | ||
5722 | default: | |
5723 | HALT_NYI; | |
5724 | } | |
5725 | } | |
5726 | ||
ef0d8ffc | 5727 | switch (INSTR (13, 10)) |
2e8cf49e NC |
5728 | { |
5729 | case 0x6: do_vec_UZP (cpu); return; | |
5730 | case 0xE: do_vec_ZIP (cpu); return; | |
5731 | case 0xA: do_vec_TRN (cpu); return; | |
2e8cf49e NC |
5732 | default: HALT_NYI; |
5733 | } | |
5734 | } | |
5735 | ||
ef0d8ffc | 5736 | switch (INSTR (15, 10)) |
2e8cf49e | 5737 | { |
67f101ee NC |
5738 | case 0x02: do_vec_REV64 (cpu); return; |
5739 | case 0x06: do_vec_REV16 (cpu); return; | |
5740 | ||
2e8cf49e | 5741 | case 0x07: |
ef0d8ffc | 5742 | switch (INSTR (23, 21)) |
2e8cf49e NC |
5743 | { |
5744 | case 1: do_vec_AND (cpu); return; | |
5745 | case 3: do_vec_BIC (cpu); return; | |
5746 | case 5: do_vec_ORR (cpu); return; | |
5747 | case 7: do_vec_ORN (cpu); return; | |
5748 | default: HALT_NYI; | |
5749 | } | |
5750 | ||
5751 | case 0x08: do_vec_sub_long (cpu); return; | |
5752 | case 0x0a: do_vec_XTN (cpu); return; | |
5753 | case 0x11: do_vec_SSHL (cpu); return; | |
ac189e7b | 5754 | case 0x16: do_vec_CNT (cpu); return; |
2e8cf49e NC |
5755 | case 0x19: do_vec_max (cpu); return; |
5756 | case 0x1B: do_vec_min (cpu); return; | |
5757 | case 0x21: do_vec_add (cpu); return; | |
5758 | case 0x25: do_vec_MLA (cpu); return; | |
5759 | case 0x27: do_vec_mul (cpu); return; | |
5760 | case 0x2F: do_vec_ADDP (cpu); return; | |
5761 | case 0x30: do_vec_mull (cpu); return; | |
5762 | case 0x33: do_vec_FMLA (cpu); return; | |
5763 | case 0x35: do_vec_fadd (cpu); return; | |
5764 | ||
b630840c JW |
5765 | case 0x1E: |
5766 | switch (INSTR (20, 16)) | |
5767 | { | |
5768 | case 0x01: do_vec_FCVTL (cpu); return; | |
5769 | default: HALT_NYI; | |
5770 | } | |
5771 | ||
2e8cf49e | 5772 | case 0x2E: |
ef0d8ffc | 5773 | switch (INSTR (20, 16)) |
2e8cf49e NC |
5774 | { |
5775 | case 0x00: do_vec_ABS (cpu); return; | |
5776 | case 0x01: do_vec_FCVTZS (cpu); return; | |
5777 | case 0x11: do_vec_ADDV (cpu); return; | |
5778 | default: HALT_NYI; | |
5779 | } | |
5780 | ||
5781 | case 0x31: | |
5782 | case 0x3B: | |
5783 | do_vec_Fminmax (cpu); return; | |
5784 | ||
5785 | case 0x0D: | |
5786 | case 0x0F: | |
5787 | case 0x22: | |
5788 | case 0x23: | |
5789 | case 0x26: | |
5790 | case 0x2A: | |
5791 | case 0x32: | |
5792 | case 0x36: | |
5793 | case 0x39: | |
5794 | case 0x3A: | |
5795 | do_vec_compare (cpu); return; | |
5796 | ||
5797 | case 0x3E: | |
5798 | do_vec_FABS (cpu); return; | |
5799 | ||
5800 | default: | |
5801 | HALT_NYI; | |
5802 | } | |
5803 | } | |
5804 | ||
5805 | static void | |
5806 | do_vec_xtl (sim_cpu *cpu) | |
5807 | { | |
5808 | /* instr[31] = 0 | |
5809 | instr[30,29] = SXTL (00), UXTL (01), SXTL2 (10), UXTL2 (11) | |
5810 | instr[28,22] = 0 1111 00 | |
5811 | instr[21,16] = size & shift (USHLL, SSHLL, USHLL2, SSHLL2) | |
5812 | instr[15,10] = 1010 01 | |
5813 | instr[9,5] = V source | |
5814 | instr[4,0] = V dest. */ | |
5815 | ||
ef0d8ffc NC |
5816 | unsigned vs = INSTR (9, 5); |
5817 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
5818 | unsigned i, shift, bias = 0; |
5819 | ||
5820 | NYI_assert (28, 22, 0x3C); | |
5821 | NYI_assert (15, 10, 0x29); | |
5822 | ||
2cdad34c | 5823 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5824 | switch (INSTR (30, 29)) |
2e8cf49e NC |
5825 | { |
5826 | case 2: /* SXTL2, SSHLL2. */ | |
5827 | bias = 2; | |
5828 | case 0: /* SXTL, SSHLL. */ | |
ef0d8ffc | 5829 | if (INSTR (21, 21)) |
2e8cf49e | 5830 | { |
7517e550 NC |
5831 | int64_t val1, val2; |
5832 | ||
ef0d8ffc | 5833 | shift = INSTR (20, 16); |
7517e550 NC |
5834 | /* Get the source values before setting the destination values |
5835 | in case the source and destination are the same. */ | |
5836 | val1 = aarch64_get_vec_s32 (cpu, vs, bias) << shift; | |
5837 | val2 = aarch64_get_vec_s32 (cpu, vs, bias + 1) << shift; | |
5838 | aarch64_set_vec_s64 (cpu, vd, 0, val1); | |
5839 | aarch64_set_vec_s64 (cpu, vd, 1, val2); | |
2e8cf49e | 5840 | } |
ef0d8ffc | 5841 | else if (INSTR (20, 20)) |
2e8cf49e | 5842 | { |
7517e550 NC |
5843 | int32_t v[4]; |
5844 | int32_t v1,v2,v3,v4; | |
5845 | ||
ef0d8ffc | 5846 | shift = INSTR (19, 16); |
2e8cf49e NC |
5847 | bias *= 2; |
5848 | for (i = 0; i < 4; i++) | |
7517e550 NC |
5849 | v[i] = aarch64_get_vec_s16 (cpu, vs, bias + i) << shift; |
5850 | for (i = 0; i < 4; i++) | |
5851 | aarch64_set_vec_s32 (cpu, vd, i, v[i]); | |
2e8cf49e NC |
5852 | } |
5853 | else | |
5854 | { | |
7517e550 | 5855 | int16_t v[8]; |
2e8cf49e NC |
5856 | NYI_assert (19, 19, 1); |
5857 | ||
ef0d8ffc | 5858 | shift = INSTR (18, 16); |
2e7e5e28 | 5859 | bias *= 4; |
2e8cf49e | 5860 | for (i = 0; i < 8; i++) |
7517e550 NC |
5861 | v[i] = aarch64_get_vec_s8 (cpu, vs, i + bias) << shift; |
5862 | for (i = 0; i < 8; i++) | |
5863 | aarch64_set_vec_s16 (cpu, vd, i, v[i]); | |
2e8cf49e NC |
5864 | } |
5865 | return; | |
5866 | ||
5867 | case 3: /* UXTL2, USHLL2. */ | |
5868 | bias = 2; | |
5869 | case 1: /* UXTL, USHLL. */ | |
ef0d8ffc | 5870 | if (INSTR (21, 21)) |
2e8cf49e | 5871 | { |
7517e550 | 5872 | uint64_t v1, v2; |
ef0d8ffc | 5873 | shift = INSTR (20, 16); |
7517e550 NC |
5874 | v1 = aarch64_get_vec_u32 (cpu, vs, bias) << shift; |
5875 | v2 = aarch64_get_vec_u32 (cpu, vs, bias + 1) << shift; | |
5876 | aarch64_set_vec_u64 (cpu, vd, 0, v1); | |
5877 | aarch64_set_vec_u64 (cpu, vd, 1, v2); | |
2e8cf49e | 5878 | } |
ef0d8ffc | 5879 | else if (INSTR (20, 20)) |
2e8cf49e | 5880 | { |
7517e550 | 5881 | uint32_t v[4]; |
ef0d8ffc | 5882 | shift = INSTR (19, 16); |
2e8cf49e NC |
5883 | bias *= 2; |
5884 | for (i = 0; i < 4; i++) | |
7517e550 NC |
5885 | v[i] = aarch64_get_vec_u16 (cpu, vs, i + bias) << shift; |
5886 | for (i = 0; i < 4; i++) | |
5887 | aarch64_set_vec_u32 (cpu, vd, i, v[i]); | |
2e8cf49e NC |
5888 | } |
5889 | else | |
5890 | { | |
7517e550 | 5891 | uint16_t v[8]; |
2e8cf49e NC |
5892 | NYI_assert (19, 19, 1); |
5893 | ||
ef0d8ffc | 5894 | shift = INSTR (18, 16); |
2e7e5e28 | 5895 | bias *= 4; |
2e8cf49e | 5896 | for (i = 0; i < 8; i++) |
7517e550 NC |
5897 | v[i] = aarch64_get_vec_u8 (cpu, vs, i + bias) << shift; |
5898 | for (i = 0; i < 8; i++) | |
5899 | aarch64_set_vec_u16 (cpu, vd, i, v[i]); | |
2e8cf49e NC |
5900 | } |
5901 | return; | |
2e8cf49e NC |
5902 | } |
5903 | } | |
5904 | ||
5905 | static void | |
5906 | do_vec_SHL (sim_cpu *cpu) | |
5907 | { | |
5908 | /* instr [31] = 0 | |
5909 | instr [30] = half(0)/full(1) | |
5910 | instr [29,23] = 001 1110 | |
5911 | instr [22,16] = size and shift amount | |
5912 | instr [15,10] = 01 0101 | |
5913 | instr [9, 5] = Vs | |
5914 | instr [4, 0] = Vd. */ | |
5915 | ||
5916 | int shift; | |
ef0d8ffc NC |
5917 | int full = INSTR (30, 30); |
5918 | unsigned vs = INSTR (9, 5); | |
5919 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
5920 | unsigned i; |
5921 | ||
5922 | NYI_assert (29, 23, 0x1E); | |
5923 | NYI_assert (15, 10, 0x15); | |
5924 | ||
2cdad34c | 5925 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 5926 | if (INSTR (22, 22)) |
2e8cf49e | 5927 | { |
ef0d8ffc | 5928 | shift = INSTR (21, 16); |
2e8cf49e NC |
5929 | |
5930 | if (full == 0) | |
5931 | HALT_UNALLOC; | |
5932 | ||
5933 | for (i = 0; i < 2; i++) | |
5934 | { | |
5935 | uint64_t val = aarch64_get_vec_u64 (cpu, vs, i); | |
5936 | aarch64_set_vec_u64 (cpu, vd, i, val << shift); | |
5937 | } | |
5938 | ||
5939 | return; | |
5940 | } | |
5941 | ||
ef0d8ffc | 5942 | if (INSTR (21, 21)) |
2e8cf49e | 5943 | { |
ef0d8ffc | 5944 | shift = INSTR (20, 16); |
2e8cf49e NC |
5945 | |
5946 | for (i = 0; i < (full ? 4 : 2); i++) | |
5947 | { | |
5948 | uint32_t val = aarch64_get_vec_u32 (cpu, vs, i); | |
5949 | aarch64_set_vec_u32 (cpu, vd, i, val << shift); | |
5950 | } | |
5951 | ||
5952 | return; | |
5953 | } | |
5954 | ||
ef0d8ffc | 5955 | if (INSTR (20, 20)) |
2e8cf49e | 5956 | { |
ef0d8ffc | 5957 | shift = INSTR (19, 16); |
2e8cf49e NC |
5958 | |
5959 | for (i = 0; i < (full ? 8 : 4); i++) | |
5960 | { | |
5961 | uint16_t val = aarch64_get_vec_u16 (cpu, vs, i); | |
5962 | aarch64_set_vec_u16 (cpu, vd, i, val << shift); | |
5963 | } | |
5964 | ||
5965 | return; | |
5966 | } | |
5967 | ||
ef0d8ffc | 5968 | if (INSTR (19, 19) == 0) |
2e8cf49e NC |
5969 | HALT_UNALLOC; |
5970 | ||
ef0d8ffc | 5971 | shift = INSTR (18, 16); |
2e8cf49e NC |
5972 | |
5973 | for (i = 0; i < (full ? 16 : 8); i++) | |
5974 | { | |
5975 | uint8_t val = aarch64_get_vec_u8 (cpu, vs, i); | |
5976 | aarch64_set_vec_u8 (cpu, vd, i, val << shift); | |
5977 | } | |
5978 | } | |
5979 | ||
5980 | static void | |
5981 | do_vec_SSHR_USHR (sim_cpu *cpu) | |
5982 | { | |
5983 | /* instr [31] = 0 | |
5984 | instr [30] = half(0)/full(1) | |
5985 | instr [29] = signed(0)/unsigned(1) | |
5ab6d79e | 5986 | instr [28,23] = 0 1111 0 |
2e8cf49e NC |
5987 | instr [22,16] = size and shift amount |
5988 | instr [15,10] = 0000 01 | |
5989 | instr [9, 5] = Vs | |
5990 | instr [4, 0] = Vd. */ | |
5991 | ||
5ab6d79e NC |
5992 | int full = INSTR (30, 30); |
5993 | int sign = ! INSTR (29, 29); | |
5994 | unsigned shift = INSTR (22, 16); | |
5995 | unsigned vs = INSTR (9, 5); | |
5996 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
5997 | unsigned i; |
5998 | ||
5999 | NYI_assert (28, 23, 0x1E); | |
6000 | NYI_assert (15, 10, 0x01); | |
6001 | ||
2cdad34c | 6002 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6003 | if (INSTR (22, 22)) |
2e8cf49e | 6004 | { |
5ab6d79e | 6005 | shift = 128 - shift; |
2e8cf49e NC |
6006 | |
6007 | if (full == 0) | |
6008 | HALT_UNALLOC; | |
6009 | ||
6010 | if (sign) | |
6011 | for (i = 0; i < 2; i++) | |
6012 | { | |
6013 | int64_t val = aarch64_get_vec_s64 (cpu, vs, i); | |
6014 | aarch64_set_vec_s64 (cpu, vd, i, val >> shift); | |
6015 | } | |
6016 | else | |
6017 | for (i = 0; i < 2; i++) | |
6018 | { | |
6019 | uint64_t val = aarch64_get_vec_u64 (cpu, vs, i); | |
6020 | aarch64_set_vec_u64 (cpu, vd, i, val >> shift); | |
6021 | } | |
6022 | ||
6023 | return; | |
6024 | } | |
6025 | ||
ef0d8ffc | 6026 | if (INSTR (21, 21)) |
2e8cf49e | 6027 | { |
5ab6d79e | 6028 | shift = 64 - shift; |
2e8cf49e NC |
6029 | |
6030 | if (sign) | |
6031 | for (i = 0; i < (full ? 4 : 2); i++) | |
6032 | { | |
6033 | int32_t val = aarch64_get_vec_s32 (cpu, vs, i); | |
6034 | aarch64_set_vec_s32 (cpu, vd, i, val >> shift); | |
6035 | } | |
6036 | else | |
6037 | for (i = 0; i < (full ? 4 : 2); i++) | |
6038 | { | |
6039 | uint32_t val = aarch64_get_vec_u32 (cpu, vs, i); | |
6040 | aarch64_set_vec_u32 (cpu, vd, i, val >> shift); | |
6041 | } | |
6042 | ||
6043 | return; | |
6044 | } | |
6045 | ||
ef0d8ffc | 6046 | if (INSTR (20, 20)) |
2e8cf49e | 6047 | { |
5ab6d79e | 6048 | shift = 32 - shift; |
2e8cf49e NC |
6049 | |
6050 | if (sign) | |
6051 | for (i = 0; i < (full ? 8 : 4); i++) | |
6052 | { | |
6053 | int16_t val = aarch64_get_vec_s16 (cpu, vs, i); | |
6054 | aarch64_set_vec_s16 (cpu, vd, i, val >> shift); | |
6055 | } | |
6056 | else | |
6057 | for (i = 0; i < (full ? 8 : 4); i++) | |
6058 | { | |
6059 | uint16_t val = aarch64_get_vec_u16 (cpu, vs, i); | |
6060 | aarch64_set_vec_u16 (cpu, vd, i, val >> shift); | |
6061 | } | |
6062 | ||
6063 | return; | |
6064 | } | |
6065 | ||
ef0d8ffc | 6066 | if (INSTR (19, 19) == 0) |
2e8cf49e NC |
6067 | HALT_UNALLOC; |
6068 | ||
5ab6d79e | 6069 | shift = 16 - shift; |
2e8cf49e NC |
6070 | |
6071 | if (sign) | |
6072 | for (i = 0; i < (full ? 16 : 8); i++) | |
6073 | { | |
6074 | int8_t val = aarch64_get_vec_s8 (cpu, vs, i); | |
6075 | aarch64_set_vec_s8 (cpu, vd, i, val >> shift); | |
6076 | } | |
6077 | else | |
6078 | for (i = 0; i < (full ? 16 : 8); i++) | |
6079 | { | |
6080 | uint8_t val = aarch64_get_vec_u8 (cpu, vs, i); | |
6081 | aarch64_set_vec_u8 (cpu, vd, i, val >> shift); | |
6082 | } | |
6083 | } | |
6084 | ||
e101a78b NC |
6085 | static void |
6086 | do_vec_MUL_by_element (sim_cpu *cpu) | |
6087 | { | |
6088 | /* instr[31] = 0 | |
6089 | instr[30] = half/full | |
6090 | instr[29,24] = 00 1111 | |
6091 | instr[23,22] = size | |
6092 | instr[21] = L | |
6093 | instr[20] = M | |
6094 | instr[19,16] = m | |
6095 | instr[15,12] = 1000 | |
6096 | instr[11] = H | |
6097 | instr[10] = 0 | |
6098 | instr[9,5] = Vn | |
6099 | instr[4,0] = Vd */ | |
6100 | ||
ef0d8ffc NC |
6101 | unsigned full = INSTR (30, 30); |
6102 | unsigned L = INSTR (21, 21); | |
6103 | unsigned H = INSTR (11, 11); | |
6104 | unsigned vn = INSTR (9, 5); | |
6105 | unsigned vd = INSTR (4, 0); | |
6106 | unsigned size = INSTR (23, 22); | |
e101a78b NC |
6107 | unsigned index; |
6108 | unsigned vm; | |
6109 | unsigned e; | |
6110 | ||
6111 | NYI_assert (29, 24, 0x0F); | |
6112 | NYI_assert (15, 12, 0x8); | |
6113 | NYI_assert (10, 10, 0); | |
6114 | ||
2cdad34c | 6115 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
6116 | switch (size) |
6117 | { | |
6118 | case 1: | |
6119 | { | |
6120 | /* 16 bit products. */ | |
6121 | uint16_t product; | |
6122 | uint16_t element1; | |
6123 | uint16_t element2; | |
6124 | ||
ef0d8ffc NC |
6125 | index = (H << 2) | (L << 1) | INSTR (20, 20); |
6126 | vm = INSTR (19, 16); | |
e101a78b NC |
6127 | element2 = aarch64_get_vec_u16 (cpu, vm, index); |
6128 | ||
6129 | for (e = 0; e < (full ? 8 : 4); e ++) | |
6130 | { | |
6131 | element1 = aarch64_get_vec_u16 (cpu, vn, e); | |
6132 | product = element1 * element2; | |
6133 | aarch64_set_vec_u16 (cpu, vd, e, product); | |
6134 | } | |
6135 | } | |
6136 | break; | |
6137 | ||
6138 | case 2: | |
6139 | { | |
6140 | /* 32 bit products. */ | |
6141 | uint32_t product; | |
6142 | uint32_t element1; | |
6143 | uint32_t element2; | |
6144 | ||
6145 | index = (H << 1) | L; | |
ef0d8ffc | 6146 | vm = INSTR (20, 16); |
e101a78b NC |
6147 | element2 = aarch64_get_vec_u32 (cpu, vm, index); |
6148 | ||
6149 | for (e = 0; e < (full ? 4 : 2); e ++) | |
6150 | { | |
6151 | element1 = aarch64_get_vec_u32 (cpu, vn, e); | |
6152 | product = element1 * element2; | |
6153 | aarch64_set_vec_u32 (cpu, vd, e, product); | |
6154 | } | |
6155 | } | |
6156 | break; | |
6157 | ||
6158 | default: | |
6159 | HALT_UNALLOC; | |
6160 | } | |
6161 | } | |
6162 | ||
fd7ed446 NC |
6163 | static void |
6164 | do_FMLA_by_element (sim_cpu *cpu) | |
6165 | { | |
6166 | /* instr[31] = 0 | |
6167 | instr[30] = half/full | |
6168 | instr[29,23] = 00 1111 1 | |
6169 | instr[22] = size | |
6170 | instr[21] = L | |
6171 | instr[20,16] = m | |
6172 | instr[15,12] = 0001 | |
6173 | instr[11] = H | |
6174 | instr[10] = 0 | |
6175 | instr[9,5] = Vn | |
6176 | instr[4,0] = Vd */ | |
6177 | ||
6178 | unsigned full = INSTR (30, 30); | |
6179 | unsigned size = INSTR (22, 22); | |
6180 | unsigned L = INSTR (21, 21); | |
6181 | unsigned vm = INSTR (20, 16); | |
6182 | unsigned H = INSTR (11, 11); | |
6183 | unsigned vn = INSTR (9, 5); | |
6184 | unsigned vd = INSTR (4, 0); | |
6185 | unsigned e; | |
6186 | ||
6187 | NYI_assert (29, 23, 0x1F); | |
6188 | NYI_assert (15, 12, 0x1); | |
6189 | NYI_assert (10, 10, 0); | |
6190 | ||
6191 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
6192 | if (size) | |
6193 | { | |
6194 | double element1, element2; | |
6195 | ||
6196 | if (! full || L) | |
6197 | HALT_UNALLOC; | |
6198 | ||
6199 | element2 = aarch64_get_vec_double (cpu, vm, H); | |
6200 | ||
6201 | for (e = 0; e < 2; e++) | |
6202 | { | |
6203 | element1 = aarch64_get_vec_double (cpu, vn, e); | |
6204 | element1 *= element2; | |
6205 | element1 += aarch64_get_vec_double (cpu, vd, e); | |
6206 | aarch64_set_vec_double (cpu, vd, e, element1); | |
6207 | } | |
6208 | } | |
6209 | else | |
6210 | { | |
6211 | float element1; | |
6212 | float element2 = aarch64_get_vec_float (cpu, vm, (H << 1) | L); | |
6213 | ||
6214 | for (e = 0; e < (full ? 4 : 2); e++) | |
6215 | { | |
6216 | element1 = aarch64_get_vec_float (cpu, vn, e); | |
6217 | element1 *= element2; | |
6218 | element1 += aarch64_get_vec_float (cpu, vd, e); | |
6219 | aarch64_set_vec_float (cpu, vd, e, element1); | |
6220 | } | |
6221 | } | |
6222 | } | |
6223 | ||
2e8cf49e NC |
6224 | static void |
6225 | do_vec_op2 (sim_cpu *cpu) | |
6226 | { | |
6227 | /* instr[31] = 0 | |
6228 | instr[30] = half/full | |
6229 | instr[29,24] = 00 1111 | |
6230 | instr[23] = ? | |
6231 | instr[22,16] = element size & index | |
6232 | instr[15,10] = sub-opcode | |
6233 | instr[9,5] = Vm | |
e101a78b | 6234 | instr[4,0] = Vd */ |
2e8cf49e NC |
6235 | |
6236 | NYI_assert (29, 24, 0x0F); | |
6237 | ||
ef0d8ffc | 6238 | if (INSTR (23, 23) != 0) |
2e8cf49e | 6239 | { |
ef0d8ffc | 6240 | switch (INSTR (15, 10)) |
e101a78b | 6241 | { |
fd7ed446 NC |
6242 | case 0x04: |
6243 | case 0x06: | |
6244 | do_FMLA_by_element (cpu); | |
6245 | return; | |
6246 | ||
e101a78b | 6247 | case 0x20: |
fd7ed446 NC |
6248 | case 0x22: |
6249 | do_vec_MUL_by_element (cpu); | |
6250 | return; | |
6251 | ||
6252 | default: | |
6253 | HALT_NYI; | |
e101a78b NC |
6254 | } |
6255 | } | |
6256 | else | |
6257 | { | |
ef0d8ffc | 6258 | switch (INSTR (15, 10)) |
e101a78b NC |
6259 | { |
6260 | case 0x01: do_vec_SSHR_USHR (cpu); return; | |
6261 | case 0x15: do_vec_SHL (cpu); return; | |
6262 | case 0x20: | |
6263 | case 0x22: do_vec_MUL_by_element (cpu); return; | |
6264 | case 0x29: do_vec_xtl (cpu); return; | |
6265 | default: HALT_NYI; | |
6266 | } | |
2e8cf49e NC |
6267 | } |
6268 | } | |
6269 | ||
6270 | static void | |
6271 | do_vec_neg (sim_cpu *cpu) | |
6272 | { | |
6273 | /* instr[31] = 0 | |
6274 | instr[30] = full(1)/half(0) | |
6275 | instr[29,24] = 10 1110 | |
6276 | instr[23,22] = size: byte(00), half (01), word (10), long (11) | |
6277 | instr[21,10] = 1000 0010 1110 | |
6278 | instr[9,5] = Vs | |
6279 | instr[4,0] = Vd */ | |
6280 | ||
ef0d8ffc NC |
6281 | int full = INSTR (30, 30); |
6282 | unsigned vs = INSTR (9, 5); | |
6283 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6284 | unsigned i; |
6285 | ||
6286 | NYI_assert (29, 24, 0x2E); | |
6287 | NYI_assert (21, 10, 0x82E); | |
6288 | ||
2cdad34c | 6289 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6290 | switch (INSTR (23, 22)) |
2e8cf49e NC |
6291 | { |
6292 | case 0: | |
6293 | for (i = 0; i < (full ? 16 : 8); i++) | |
6294 | aarch64_set_vec_s8 (cpu, vd, i, - aarch64_get_vec_s8 (cpu, vs, i)); | |
6295 | return; | |
6296 | ||
6297 | case 1: | |
6298 | for (i = 0; i < (full ? 8 : 4); i++) | |
6299 | aarch64_set_vec_s16 (cpu, vd, i, - aarch64_get_vec_s16 (cpu, vs, i)); | |
6300 | return; | |
6301 | ||
6302 | case 2: | |
6303 | for (i = 0; i < (full ? 4 : 2); i++) | |
6304 | aarch64_set_vec_s32 (cpu, vd, i, - aarch64_get_vec_s32 (cpu, vs, i)); | |
6305 | return; | |
6306 | ||
6307 | case 3: | |
6308 | if (! full) | |
6309 | HALT_NYI; | |
6310 | for (i = 0; i < 2; i++) | |
6311 | aarch64_set_vec_s64 (cpu, vd, i, - aarch64_get_vec_s64 (cpu, vs, i)); | |
6312 | return; | |
2e8cf49e NC |
6313 | } |
6314 | } | |
6315 | ||
6316 | static void | |
6317 | do_vec_sqrt (sim_cpu *cpu) | |
6318 | { | |
6319 | /* instr[31] = 0 | |
6320 | instr[30] = full(1)/half(0) | |
6321 | instr[29,23] = 101 1101 | |
6322 | instr[22] = single(0)/double(1) | |
6323 | instr[21,10] = 1000 0111 1110 | |
6324 | instr[9,5] = Vs | |
6325 | instr[4,0] = Vd. */ | |
6326 | ||
ef0d8ffc NC |
6327 | int full = INSTR (30, 30); |
6328 | unsigned vs = INSTR (9, 5); | |
6329 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6330 | unsigned i; |
6331 | ||
6332 | NYI_assert (29, 23, 0x5B); | |
6333 | NYI_assert (21, 10, 0x87E); | |
6334 | ||
2cdad34c | 6335 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6336 | if (INSTR (22, 22) == 0) |
2e8cf49e NC |
6337 | for (i = 0; i < (full ? 4 : 2); i++) |
6338 | aarch64_set_vec_float (cpu, vd, i, | |
6339 | sqrtf (aarch64_get_vec_float (cpu, vs, i))); | |
6340 | else | |
6341 | for (i = 0; i < 2; i++) | |
6342 | aarch64_set_vec_double (cpu, vd, i, | |
6343 | sqrt (aarch64_get_vec_double (cpu, vs, i))); | |
6344 | } | |
6345 | ||
6346 | static void | |
6347 | do_vec_mls_indexed (sim_cpu *cpu) | |
6348 | { | |
6349 | /* instr[31] = 0 | |
6350 | instr[30] = half(0)/full(1) | |
6351 | instr[29,24] = 10 1111 | |
6352 | instr[23,22] = 16-bit(01)/32-bit(10) | |
6353 | instr[21,20+11] = index (if 16-bit) | |
6354 | instr[21+11] = index (if 32-bit) | |
6355 | instr[20,16] = Vm | |
6356 | instr[15,12] = 0100 | |
6357 | instr[11] = part of index | |
6358 | instr[10] = 0 | |
6359 | instr[9,5] = Vs | |
6360 | instr[4,0] = Vd. */ | |
6361 | ||
ef0d8ffc NC |
6362 | int full = INSTR (30, 30); |
6363 | unsigned vs = INSTR (9, 5); | |
6364 | unsigned vd = INSTR (4, 0); | |
6365 | unsigned vm = INSTR (20, 16); | |
2e8cf49e NC |
6366 | unsigned i; |
6367 | ||
6368 | NYI_assert (15, 12, 4); | |
6369 | NYI_assert (10, 10, 0); | |
6370 | ||
2cdad34c | 6371 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6372 | switch (INSTR (23, 22)) |
2e8cf49e NC |
6373 | { |
6374 | case 1: | |
6375 | { | |
6376 | unsigned elem; | |
6377 | uint32_t val; | |
6378 | ||
6379 | if (vm > 15) | |
6380 | HALT_NYI; | |
6381 | ||
7517e550 | 6382 | elem = (INSTR (21, 20) << 1) | INSTR (11, 11); |
2e8cf49e NC |
6383 | val = aarch64_get_vec_u16 (cpu, vm, elem); |
6384 | ||
6385 | for (i = 0; i < (full ? 8 : 4); i++) | |
6386 | aarch64_set_vec_u32 (cpu, vd, i, | |
6387 | aarch64_get_vec_u32 (cpu, vd, i) - | |
6388 | (aarch64_get_vec_u32 (cpu, vs, i) * val)); | |
6389 | return; | |
6390 | } | |
6391 | ||
6392 | case 2: | |
6393 | { | |
7517e550 | 6394 | unsigned elem = (INSTR (21, 21) << 1) | INSTR (11, 11); |
2e8cf49e NC |
6395 | uint64_t val = aarch64_get_vec_u32 (cpu, vm, elem); |
6396 | ||
6397 | for (i = 0; i < (full ? 4 : 2); i++) | |
6398 | aarch64_set_vec_u64 (cpu, vd, i, | |
6399 | aarch64_get_vec_u64 (cpu, vd, i) - | |
6400 | (aarch64_get_vec_u64 (cpu, vs, i) * val)); | |
6401 | return; | |
6402 | } | |
6403 | ||
6404 | case 0: | |
6405 | case 3: | |
6406 | default: | |
6407 | HALT_NYI; | |
6408 | } | |
6409 | } | |
6410 | ||
6411 | static void | |
6412 | do_vec_SUB (sim_cpu *cpu) | |
6413 | { | |
6414 | /* instr [31] = 0 | |
6415 | instr [30] = half(0)/full(1) | |
6416 | instr [29,24] = 10 1110 | |
6417 | instr [23,22] = size: byte(00, half(01), word (10), long (11) | |
6418 | instr [21] = 1 | |
6419 | instr [20,16] = Vm | |
6420 | instr [15,10] = 10 0001 | |
6421 | instr [9, 5] = Vn | |
6422 | instr [4, 0] = Vd. */ | |
6423 | ||
ef0d8ffc NC |
6424 | unsigned full = INSTR (30, 30); |
6425 | unsigned vm = INSTR (20, 16); | |
6426 | unsigned vn = INSTR (9, 5); | |
6427 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6428 | unsigned i; |
6429 | ||
6430 | NYI_assert (29, 24, 0x2E); | |
6431 | NYI_assert (21, 21, 1); | |
6432 | NYI_assert (15, 10, 0x21); | |
6433 | ||
2cdad34c | 6434 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6435 | switch (INSTR (23, 22)) |
2e8cf49e NC |
6436 | { |
6437 | case 0: | |
6438 | for (i = 0; i < (full ? 16 : 8); i++) | |
6439 | aarch64_set_vec_s8 (cpu, vd, i, | |
6440 | aarch64_get_vec_s8 (cpu, vn, i) | |
6441 | - aarch64_get_vec_s8 (cpu, vm, i)); | |
6442 | return; | |
6443 | ||
6444 | case 1: | |
6445 | for (i = 0; i < (full ? 8 : 4); i++) | |
6446 | aarch64_set_vec_s16 (cpu, vd, i, | |
6447 | aarch64_get_vec_s16 (cpu, vn, i) | |
6448 | - aarch64_get_vec_s16 (cpu, vm, i)); | |
6449 | return; | |
6450 | ||
6451 | case 2: | |
6452 | for (i = 0; i < (full ? 4 : 2); i++) | |
6453 | aarch64_set_vec_s32 (cpu, vd, i, | |
6454 | aarch64_get_vec_s32 (cpu, vn, i) | |
6455 | - aarch64_get_vec_s32 (cpu, vm, i)); | |
6456 | return; | |
6457 | ||
6458 | case 3: | |
6459 | if (full == 0) | |
6460 | HALT_UNALLOC; | |
6461 | ||
6462 | for (i = 0; i < 2; i++) | |
6463 | aarch64_set_vec_s64 (cpu, vd, i, | |
6464 | aarch64_get_vec_s64 (cpu, vn, i) | |
6465 | - aarch64_get_vec_s64 (cpu, vm, i)); | |
6466 | return; | |
2e8cf49e NC |
6467 | } |
6468 | } | |
6469 | ||
6470 | static void | |
6471 | do_vec_MLS (sim_cpu *cpu) | |
6472 | { | |
6473 | /* instr [31] = 0 | |
6474 | instr [30] = half(0)/full(1) | |
6475 | instr [29,24] = 10 1110 | |
6476 | instr [23,22] = size: byte(00, half(01), word (10) | |
6477 | instr [21] = 1 | |
6478 | instr [20,16] = Vm | |
6479 | instr [15,10] = 10 0101 | |
6480 | instr [9, 5] = Vn | |
6481 | instr [4, 0] = Vd. */ | |
6482 | ||
ef0d8ffc NC |
6483 | unsigned full = INSTR (30, 30); |
6484 | unsigned vm = INSTR (20, 16); | |
6485 | unsigned vn = INSTR (9, 5); | |
6486 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6487 | unsigned i; |
6488 | ||
6489 | NYI_assert (29, 24, 0x2E); | |
6490 | NYI_assert (21, 21, 1); | |
6491 | NYI_assert (15, 10, 0x25); | |
6492 | ||
2cdad34c | 6493 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6494 | switch (INSTR (23, 22)) |
2e8cf49e NC |
6495 | { |
6496 | case 0: | |
6497 | for (i = 0; i < (full ? 16 : 8); i++) | |
6498 | aarch64_set_vec_u8 (cpu, vd, i, | |
c0386d4d JW |
6499 | aarch64_get_vec_u8 (cpu, vd, i) |
6500 | - (aarch64_get_vec_u8 (cpu, vn, i) | |
6501 | * aarch64_get_vec_u8 (cpu, vm, i))); | |
2e8cf49e NC |
6502 | return; |
6503 | ||
6504 | case 1: | |
6505 | for (i = 0; i < (full ? 8 : 4); i++) | |
6506 | aarch64_set_vec_u16 (cpu, vd, i, | |
c0386d4d JW |
6507 | aarch64_get_vec_u16 (cpu, vd, i) |
6508 | - (aarch64_get_vec_u16 (cpu, vn, i) | |
6509 | * aarch64_get_vec_u16 (cpu, vm, i))); | |
2e8cf49e NC |
6510 | return; |
6511 | ||
6512 | case 2: | |
6513 | for (i = 0; i < (full ? 4 : 2); i++) | |
6514 | aarch64_set_vec_u32 (cpu, vd, i, | |
c0386d4d JW |
6515 | aarch64_get_vec_u32 (cpu, vd, i) |
6516 | - (aarch64_get_vec_u32 (cpu, vn, i) | |
6517 | * aarch64_get_vec_u32 (cpu, vm, i))); | |
2e8cf49e NC |
6518 | return; |
6519 | ||
6520 | default: | |
6521 | HALT_UNALLOC; | |
6522 | } | |
6523 | } | |
6524 | ||
6525 | static void | |
6526 | do_vec_FDIV (sim_cpu *cpu) | |
6527 | { | |
6528 | /* instr [31] = 0 | |
6529 | instr [30] = half(0)/full(1) | |
6530 | instr [29,23] = 10 1110 0 | |
6531 | instr [22] = float()/double(1) | |
6532 | instr [21] = 1 | |
6533 | instr [20,16] = Vm | |
6534 | instr [15,10] = 1111 11 | |
6535 | instr [9, 5] = Vn | |
6536 | instr [4, 0] = Vd. */ | |
6537 | ||
ef0d8ffc NC |
6538 | unsigned full = INSTR (30, 30); |
6539 | unsigned vm = INSTR (20, 16); | |
6540 | unsigned vn = INSTR (9, 5); | |
6541 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6542 | unsigned i; |
6543 | ||
6544 | NYI_assert (29, 23, 0x5C); | |
6545 | NYI_assert (21, 21, 1); | |
6546 | NYI_assert (15, 10, 0x3F); | |
6547 | ||
2cdad34c | 6548 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6549 | if (INSTR (22, 22)) |
2e8cf49e NC |
6550 | { |
6551 | if (! full) | |
6552 | HALT_UNALLOC; | |
6553 | ||
6554 | for (i = 0; i < 2; i++) | |
6555 | aarch64_set_vec_double (cpu, vd, i, | |
6556 | aarch64_get_vec_double (cpu, vn, i) | |
6557 | / aarch64_get_vec_double (cpu, vm, i)); | |
6558 | } | |
6559 | else | |
6560 | for (i = 0; i < (full ? 4 : 2); i++) | |
6561 | aarch64_set_vec_float (cpu, vd, i, | |
6562 | aarch64_get_vec_float (cpu, vn, i) | |
6563 | / aarch64_get_vec_float (cpu, vm, i)); | |
6564 | } | |
6565 | ||
6566 | static void | |
6567 | do_vec_FMUL (sim_cpu *cpu) | |
6568 | { | |
6569 | /* instr [31] = 0 | |
6570 | instr [30] = half(0)/full(1) | |
6571 | instr [29,23] = 10 1110 0 | |
6572 | instr [22] = float(0)/double(1) | |
6573 | instr [21] = 1 | |
6574 | instr [20,16] = Vm | |
6575 | instr [15,10] = 1101 11 | |
6576 | instr [9, 5] = Vn | |
6577 | instr [4, 0] = Vd. */ | |
6578 | ||
ef0d8ffc NC |
6579 | unsigned full = INSTR (30, 30); |
6580 | unsigned vm = INSTR (20, 16); | |
6581 | unsigned vn = INSTR (9, 5); | |
6582 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6583 | unsigned i; |
6584 | ||
6585 | NYI_assert (29, 23, 0x5C); | |
6586 | NYI_assert (21, 21, 1); | |
6587 | NYI_assert (15, 10, 0x37); | |
6588 | ||
2cdad34c | 6589 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6590 | if (INSTR (22, 22)) |
2e8cf49e NC |
6591 | { |
6592 | if (! full) | |
6593 | HALT_UNALLOC; | |
6594 | ||
6595 | for (i = 0; i < 2; i++) | |
6596 | aarch64_set_vec_double (cpu, vd, i, | |
6597 | aarch64_get_vec_double (cpu, vn, i) | |
6598 | * aarch64_get_vec_double (cpu, vm, i)); | |
6599 | } | |
6600 | else | |
6601 | for (i = 0; i < (full ? 4 : 2); i++) | |
6602 | aarch64_set_vec_float (cpu, vd, i, | |
6603 | aarch64_get_vec_float (cpu, vn, i) | |
6604 | * aarch64_get_vec_float (cpu, vm, i)); | |
6605 | } | |
6606 | ||
6607 | static void | |
6608 | do_vec_FADDP (sim_cpu *cpu) | |
6609 | { | |
6610 | /* instr [31] = 0 | |
6611 | instr [30] = half(0)/full(1) | |
6612 | instr [29,23] = 10 1110 0 | |
6613 | instr [22] = float(0)/double(1) | |
6614 | instr [21] = 1 | |
6615 | instr [20,16] = Vm | |
6616 | instr [15,10] = 1101 01 | |
6617 | instr [9, 5] = Vn | |
6618 | instr [4, 0] = Vd. */ | |
6619 | ||
ef0d8ffc NC |
6620 | unsigned full = INSTR (30, 30); |
6621 | unsigned vm = INSTR (20, 16); | |
6622 | unsigned vn = INSTR (9, 5); | |
6623 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6624 | |
6625 | NYI_assert (29, 23, 0x5C); | |
6626 | NYI_assert (21, 21, 1); | |
6627 | NYI_assert (15, 10, 0x35); | |
6628 | ||
2cdad34c | 6629 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6630 | if (INSTR (22, 22)) |
2e8cf49e | 6631 | { |
57aa1742 NC |
6632 | /* Extract values before adding them incase vd == vn/vm. */ |
6633 | double tmp1 = aarch64_get_vec_double (cpu, vn, 0); | |
6634 | double tmp2 = aarch64_get_vec_double (cpu, vn, 1); | |
6635 | double tmp3 = aarch64_get_vec_double (cpu, vm, 0); | |
6636 | double tmp4 = aarch64_get_vec_double (cpu, vm, 1); | |
6637 | ||
2e8cf49e NC |
6638 | if (! full) |
6639 | HALT_UNALLOC; | |
6640 | ||
57aa1742 NC |
6641 | aarch64_set_vec_double (cpu, vd, 0, tmp1 + tmp2); |
6642 | aarch64_set_vec_double (cpu, vd, 1, tmp3 + tmp4); | |
2e8cf49e NC |
6643 | } |
6644 | else | |
6645 | { | |
57aa1742 NC |
6646 | /* Extract values before adding them incase vd == vn/vm. */ |
6647 | float tmp1 = aarch64_get_vec_float (cpu, vn, 0); | |
6648 | float tmp2 = aarch64_get_vec_float (cpu, vn, 1); | |
6649 | float tmp5 = aarch64_get_vec_float (cpu, vm, 0); | |
6650 | float tmp6 = aarch64_get_vec_float (cpu, vm, 1); | |
6651 | ||
2e8cf49e | 6652 | if (full) |
57aa1742 NC |
6653 | { |
6654 | float tmp3 = aarch64_get_vec_float (cpu, vn, 2); | |
6655 | float tmp4 = aarch64_get_vec_float (cpu, vn, 3); | |
6656 | float tmp7 = aarch64_get_vec_float (cpu, vm, 2); | |
6657 | float tmp8 = aarch64_get_vec_float (cpu, vm, 3); | |
6658 | ||
6659 | aarch64_set_vec_float (cpu, vd, 0, tmp1 + tmp2); | |
6660 | aarch64_set_vec_float (cpu, vd, 1, tmp3 + tmp4); | |
6661 | aarch64_set_vec_float (cpu, vd, 2, tmp5 + tmp6); | |
6662 | aarch64_set_vec_float (cpu, vd, 3, tmp7 + tmp8); | |
6663 | } | |
6664 | else | |
6665 | { | |
6666 | aarch64_set_vec_float (cpu, vd, 0, tmp1 + tmp2); | |
6667 | aarch64_set_vec_float (cpu, vd, 1, tmp5 + tmp6); | |
6668 | } | |
2e8cf49e NC |
6669 | } |
6670 | } | |
6671 | ||
6672 | static void | |
6673 | do_vec_FSQRT (sim_cpu *cpu) | |
6674 | { | |
6675 | /* instr[31] = 0 | |
6676 | instr[30] = half(0)/full(1) | |
6677 | instr[29,23] = 10 1110 1 | |
6678 | instr[22] = single(0)/double(1) | |
6679 | instr[21,10] = 10 0001 1111 10 | |
6680 | instr[9,5] = Vsrc | |
6681 | instr[4,0] = Vdest. */ | |
6682 | ||
ef0d8ffc NC |
6683 | unsigned vn = INSTR (9, 5); |
6684 | unsigned vd = INSTR (4, 0); | |
6685 | unsigned full = INSTR (30, 30); | |
2e8cf49e NC |
6686 | int i; |
6687 | ||
6688 | NYI_assert (29, 23, 0x5D); | |
6689 | NYI_assert (21, 10, 0x87E); | |
6690 | ||
2cdad34c | 6691 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6692 | if (INSTR (22, 22)) |
2e8cf49e NC |
6693 | { |
6694 | if (! full) | |
6695 | HALT_UNALLOC; | |
6696 | ||
6697 | for (i = 0; i < 2; i++) | |
6698 | aarch64_set_vec_double (cpu, vd, i, | |
6699 | sqrt (aarch64_get_vec_double (cpu, vn, i))); | |
6700 | } | |
6701 | else | |
6702 | { | |
6703 | for (i = 0; i < (full ? 4 : 2); i++) | |
6704 | aarch64_set_vec_float (cpu, vd, i, | |
6705 | sqrtf (aarch64_get_vec_float (cpu, vn, i))); | |
6706 | } | |
6707 | } | |
6708 | ||
6709 | static void | |
6710 | do_vec_FNEG (sim_cpu *cpu) | |
6711 | { | |
6712 | /* instr[31] = 0 | |
6713 | instr[30] = half (0)/full (1) | |
6714 | instr[29,23] = 10 1110 1 | |
6715 | instr[22] = single (0)/double (1) | |
6716 | instr[21,10] = 10 0000 1111 10 | |
6717 | instr[9,5] = Vsrc | |
6718 | instr[4,0] = Vdest. */ | |
6719 | ||
ef0d8ffc NC |
6720 | unsigned vn = INSTR (9, 5); |
6721 | unsigned vd = INSTR (4, 0); | |
6722 | unsigned full = INSTR (30, 30); | |
2e8cf49e NC |
6723 | int i; |
6724 | ||
6725 | NYI_assert (29, 23, 0x5D); | |
6726 | NYI_assert (21, 10, 0x83E); | |
6727 | ||
2cdad34c | 6728 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6729 | if (INSTR (22, 22)) |
2e8cf49e NC |
6730 | { |
6731 | if (! full) | |
6732 | HALT_UNALLOC; | |
6733 | ||
6734 | for (i = 0; i < 2; i++) | |
6735 | aarch64_set_vec_double (cpu, vd, i, | |
6736 | - aarch64_get_vec_double (cpu, vn, i)); | |
6737 | } | |
6738 | else | |
6739 | { | |
6740 | for (i = 0; i < (full ? 4 : 2); i++) | |
6741 | aarch64_set_vec_float (cpu, vd, i, | |
6742 | - aarch64_get_vec_float (cpu, vn, i)); | |
6743 | } | |
6744 | } | |
6745 | ||
6746 | static void | |
6747 | do_vec_NOT (sim_cpu *cpu) | |
6748 | { | |
6749 | /* instr[31] = 0 | |
6750 | instr[30] = half (0)/full (1) | |
5ab6d79e | 6751 | instr[29,10] = 10 1110 0010 0000 0101 10 |
2e8cf49e NC |
6752 | instr[9,5] = Vn |
6753 | instr[4.0] = Vd. */ | |
6754 | ||
ef0d8ffc NC |
6755 | unsigned vn = INSTR (9, 5); |
6756 | unsigned vd = INSTR (4, 0); | |
2e8cf49e | 6757 | unsigned i; |
ef0d8ffc | 6758 | int full = INSTR (30, 30); |
2e8cf49e NC |
6759 | |
6760 | NYI_assert (29, 10, 0xB8816); | |
6761 | ||
2cdad34c | 6762 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
6763 | for (i = 0; i < (full ? 16 : 8); i++) |
6764 | aarch64_set_vec_u8 (cpu, vd, i, ~ aarch64_get_vec_u8 (cpu, vn, i)); | |
6765 | } | |
6766 | ||
5ab6d79e NC |
6767 | static unsigned int |
6768 | clz (uint64_t val, unsigned size) | |
6769 | { | |
6770 | uint64_t mask = 1; | |
6771 | int count; | |
6772 | ||
6773 | mask <<= (size - 1); | |
6774 | count = 0; | |
6775 | do | |
6776 | { | |
6777 | if (val & mask) | |
6778 | break; | |
6779 | mask >>= 1; | |
6780 | count ++; | |
6781 | } | |
6782 | while (mask); | |
6783 | ||
6784 | return count; | |
6785 | } | |
6786 | ||
6787 | static void | |
6788 | do_vec_CLZ (sim_cpu *cpu) | |
6789 | { | |
6790 | /* instr[31] = 0 | |
6791 | instr[30] = half (0)/full (1) | |
6792 | instr[29,24] = 10 1110 | |
6793 | instr[23,22] = size | |
6794 | instr[21,10] = 10 0000 0100 10 | |
6795 | instr[9,5] = Vn | |
6796 | instr[4.0] = Vd. */ | |
6797 | ||
6798 | unsigned vn = INSTR (9, 5); | |
6799 | unsigned vd = INSTR (4, 0); | |
6800 | unsigned i; | |
6801 | int full = INSTR (30,30); | |
6802 | ||
6803 | NYI_assert (29, 24, 0x2E); | |
6804 | NYI_assert (21, 10, 0x812); | |
6805 | ||
2cdad34c | 6806 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
6807 | switch (INSTR (23, 22)) |
6808 | { | |
6809 | case 0: | |
6810 | for (i = 0; i < (full ? 16 : 8); i++) | |
6811 | aarch64_set_vec_u8 (cpu, vd, i, clz (aarch64_get_vec_u8 (cpu, vn, i), 8)); | |
6812 | break; | |
6813 | case 1: | |
6814 | for (i = 0; i < (full ? 8 : 4); i++) | |
6815 | aarch64_set_vec_u16 (cpu, vd, i, clz (aarch64_get_vec_u16 (cpu, vn, i), 16)); | |
6816 | break; | |
6817 | case 2: | |
6818 | for (i = 0; i < (full ? 4 : 2); i++) | |
6819 | aarch64_set_vec_u32 (cpu, vd, i, clz (aarch64_get_vec_u32 (cpu, vn, i), 32)); | |
6820 | break; | |
6821 | case 3: | |
6822 | if (! full) | |
6823 | HALT_UNALLOC; | |
6824 | aarch64_set_vec_u64 (cpu, vd, 0, clz (aarch64_get_vec_u64 (cpu, vn, 0), 64)); | |
6825 | aarch64_set_vec_u64 (cpu, vd, 1, clz (aarch64_get_vec_u64 (cpu, vn, 1), 64)); | |
6826 | break; | |
6827 | } | |
6828 | } | |
6829 | ||
2e8cf49e NC |
6830 | static void |
6831 | do_vec_MOV_element (sim_cpu *cpu) | |
6832 | { | |
6833 | /* instr[31,21] = 0110 1110 000 | |
6834 | instr[20,16] = size & dest index | |
6835 | instr[15] = 0 | |
6836 | instr[14,11] = source index | |
6837 | instr[10] = 1 | |
6838 | instr[9,5] = Vs | |
6839 | instr[4.0] = Vd. */ | |
6840 | ||
ef0d8ffc NC |
6841 | unsigned vs = INSTR (9, 5); |
6842 | unsigned vd = INSTR (4, 0); | |
2e8cf49e NC |
6843 | unsigned src_index; |
6844 | unsigned dst_index; | |
6845 | ||
6846 | NYI_assert (31, 21, 0x370); | |
6847 | NYI_assert (15, 15, 0); | |
6848 | NYI_assert (10, 10, 1); | |
6849 | ||
2cdad34c | 6850 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 6851 | if (INSTR (16, 16)) |
2e8cf49e NC |
6852 | { |
6853 | /* Move a byte. */ | |
ef0d8ffc NC |
6854 | src_index = INSTR (14, 11); |
6855 | dst_index = INSTR (20, 17); | |
2e8cf49e NC |
6856 | aarch64_set_vec_u8 (cpu, vd, dst_index, |
6857 | aarch64_get_vec_u8 (cpu, vs, src_index)); | |
6858 | } | |
ef0d8ffc | 6859 | else if (INSTR (17, 17)) |
2e8cf49e NC |
6860 | { |
6861 | /* Move 16-bits. */ | |
6862 | NYI_assert (11, 11, 0); | |
ef0d8ffc NC |
6863 | src_index = INSTR (14, 12); |
6864 | dst_index = INSTR (20, 18); | |
2e8cf49e NC |
6865 | aarch64_set_vec_u16 (cpu, vd, dst_index, |
6866 | aarch64_get_vec_u16 (cpu, vs, src_index)); | |
6867 | } | |
ef0d8ffc | 6868 | else if (INSTR (18, 18)) |
2e8cf49e NC |
6869 | { |
6870 | /* Move 32-bits. */ | |
6871 | NYI_assert (12, 11, 0); | |
ef0d8ffc NC |
6872 | src_index = INSTR (14, 13); |
6873 | dst_index = INSTR (20, 19); | |
2e8cf49e NC |
6874 | aarch64_set_vec_u32 (cpu, vd, dst_index, |
6875 | aarch64_get_vec_u32 (cpu, vs, src_index)); | |
6876 | } | |
6877 | else | |
6878 | { | |
6879 | NYI_assert (19, 19, 1); | |
6880 | NYI_assert (13, 11, 0); | |
ef0d8ffc NC |
6881 | src_index = INSTR (14, 14); |
6882 | dst_index = INSTR (20, 20); | |
2e8cf49e NC |
6883 | aarch64_set_vec_u64 (cpu, vd, dst_index, |
6884 | aarch64_get_vec_u64 (cpu, vs, src_index)); | |
6885 | } | |
6886 | } | |
6887 | ||
67f101ee NC |
6888 | static void |
6889 | do_vec_REV32 (sim_cpu *cpu) | |
6890 | { | |
6891 | /* instr[31] = 0 | |
6892 | instr[30] = full/half | |
6893 | instr[29,24] = 10 1110 | |
6894 | instr[23,22] = size | |
6895 | instr[21,10] = 10 0000 0000 10 | |
6896 | instr[9,5] = Rn | |
6897 | instr[4,0] = Rd. */ | |
6898 | ||
6899 | unsigned rn = INSTR (9, 5); | |
6900 | unsigned rd = INSTR (4, 0); | |
6901 | unsigned size = INSTR (23, 22); | |
6902 | unsigned full = INSTR (30, 30); | |
6903 | unsigned i; | |
6904 | FRegister val; | |
6905 | ||
6906 | NYI_assert (29, 24, 0x2E); | |
6907 | NYI_assert (21, 10, 0x802); | |
6908 | ||
2cdad34c | 6909 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
67f101ee NC |
6910 | switch (size) |
6911 | { | |
6912 | case 0: | |
6913 | for (i = 0; i < (full ? 16 : 8); i++) | |
6914 | val.b[i ^ 0x3] = aarch64_get_vec_u8 (cpu, rn, i); | |
6915 | break; | |
6916 | ||
6917 | case 1: | |
6918 | for (i = 0; i < (full ? 8 : 4); i++) | |
6919 | val.h[i ^ 0x1] = aarch64_get_vec_u16 (cpu, rn, i); | |
6920 | break; | |
6921 | ||
6922 | default: | |
6923 | HALT_UNALLOC; | |
6924 | } | |
6925 | ||
6926 | aarch64_set_vec_u64 (cpu, rd, 0, val.v[0]); | |
6927 | if (full) | |
6928 | aarch64_set_vec_u64 (cpu, rd, 1, val.v[1]); | |
6929 | } | |
6930 | ||
6931 | static void | |
6932 | do_vec_EXT (sim_cpu *cpu) | |
6933 | { | |
6934 | /* instr[31] = 0 | |
6935 | instr[30] = full/half | |
6936 | instr[29,21] = 10 1110 000 | |
6937 | instr[20,16] = Vm | |
6938 | instr[15] = 0 | |
6939 | instr[14,11] = source index | |
6940 | instr[10] = 0 | |
6941 | instr[9,5] = Vn | |
6942 | instr[4.0] = Vd. */ | |
6943 | ||
6944 | unsigned vm = INSTR (20, 16); | |
6945 | unsigned vn = INSTR (9, 5); | |
6946 | unsigned vd = INSTR (4, 0); | |
6947 | unsigned src_index = INSTR (14, 11); | |
6948 | unsigned full = INSTR (30, 30); | |
6949 | unsigned i; | |
6950 | unsigned j; | |
6951 | FRegister val; | |
6952 | ||
6953 | NYI_assert (31, 21, 0x370); | |
6954 | NYI_assert (15, 15, 0); | |
6955 | NYI_assert (10, 10, 0); | |
6956 | ||
6957 | if (!full && (src_index & 0x8)) | |
6958 | HALT_UNALLOC; | |
6959 | ||
6960 | j = 0; | |
6961 | ||
2cdad34c | 6962 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
67f101ee NC |
6963 | for (i = src_index; i < (full ? 16 : 8); i++) |
6964 | val.b[j ++] = aarch64_get_vec_u8 (cpu, vn, i); | |
6965 | for (i = 0; i < src_index; i++) | |
6966 | val.b[j ++] = aarch64_get_vec_u8 (cpu, vm, i); | |
6967 | ||
6968 | aarch64_set_vec_u64 (cpu, vd, 0, val.v[0]); | |
6969 | if (full) | |
6970 | aarch64_set_vec_u64 (cpu, vd, 1, val.v[1]); | |
6971 | } | |
6972 | ||
2e8cf49e NC |
6973 | static void |
6974 | dexAdvSIMD0 (sim_cpu *cpu) | |
6975 | { | |
6976 | /* instr [28,25] = 0 111. */ | |
ef0d8ffc NC |
6977 | if ( INSTR (15, 10) == 0x07 |
6978 | && (INSTR (9, 5) == | |
6979 | INSTR (20, 16))) | |
2e8cf49e | 6980 | { |
ef0d8ffc NC |
6981 | if (INSTR (31, 21) == 0x075 |
6982 | || INSTR (31, 21) == 0x275) | |
2e8cf49e NC |
6983 | { |
6984 | do_vec_MOV_whole_vector (cpu); | |
6985 | return; | |
6986 | } | |
6987 | } | |
6988 | ||
ef0d8ffc | 6989 | if (INSTR (29, 19) == 0x1E0) |
2e8cf49e NC |
6990 | { |
6991 | do_vec_MOV_immediate (cpu); | |
6992 | return; | |
6993 | } | |
6994 | ||
ef0d8ffc | 6995 | if (INSTR (29, 19) == 0x5E0) |
2e8cf49e NC |
6996 | { |
6997 | do_vec_MVNI (cpu); | |
6998 | return; | |
6999 | } | |
7000 | ||
ef0d8ffc NC |
7001 | if (INSTR (29, 19) == 0x1C0 |
7002 | || INSTR (29, 19) == 0x1C1) | |
2e8cf49e | 7003 | { |
ef0d8ffc | 7004 | if (INSTR (15, 10) == 0x03) |
2e8cf49e NC |
7005 | { |
7006 | do_vec_DUP_scalar_into_vector (cpu); | |
7007 | return; | |
7008 | } | |
7009 | } | |
7010 | ||
ef0d8ffc | 7011 | switch (INSTR (29, 24)) |
2e8cf49e NC |
7012 | { |
7013 | case 0x0E: do_vec_op1 (cpu); return; | |
7014 | case 0x0F: do_vec_op2 (cpu); return; | |
7015 | ||
2e8cf49e | 7016 | case 0x2E: |
ef0d8ffc | 7017 | if (INSTR (21, 21) == 1) |
2e8cf49e | 7018 | { |
ef0d8ffc | 7019 | switch (INSTR (15, 10)) |
2e8cf49e | 7020 | { |
67f101ee NC |
7021 | case 0x02: |
7022 | do_vec_REV32 (cpu); | |
7023 | return; | |
7024 | ||
2e8cf49e | 7025 | case 0x07: |
ef0d8ffc | 7026 | switch (INSTR (23, 22)) |
2e8cf49e NC |
7027 | { |
7028 | case 0: do_vec_EOR (cpu); return; | |
7029 | case 1: do_vec_BSL (cpu); return; | |
7030 | case 2: | |
7031 | case 3: do_vec_bit (cpu); return; | |
7032 | } | |
7033 | break; | |
7034 | ||
7035 | case 0x08: do_vec_sub_long (cpu); return; | |
7036 | case 0x11: do_vec_USHL (cpu); return; | |
5ab6d79e | 7037 | case 0x12: do_vec_CLZ (cpu); return; |
2e8cf49e NC |
7038 | case 0x16: do_vec_NOT (cpu); return; |
7039 | case 0x19: do_vec_max (cpu); return; | |
7040 | case 0x1B: do_vec_min (cpu); return; | |
7041 | case 0x21: do_vec_SUB (cpu); return; | |
7042 | case 0x25: do_vec_MLS (cpu); return; | |
7043 | case 0x31: do_vec_FminmaxNMP (cpu); return; | |
7044 | case 0x35: do_vec_FADDP (cpu); return; | |
7045 | case 0x37: do_vec_FMUL (cpu); return; | |
7046 | case 0x3F: do_vec_FDIV (cpu); return; | |
7047 | ||
7048 | case 0x3E: | |
ef0d8ffc | 7049 | switch (INSTR (20, 16)) |
2e8cf49e NC |
7050 | { |
7051 | case 0x00: do_vec_FNEG (cpu); return; | |
7052 | case 0x01: do_vec_FSQRT (cpu); return; | |
7053 | default: HALT_NYI; | |
7054 | } | |
7055 | ||
7056 | case 0x0D: | |
7057 | case 0x0F: | |
7058 | case 0x22: | |
7059 | case 0x23: | |
7060 | case 0x26: | |
7061 | case 0x2A: | |
7062 | case 0x32: | |
7063 | case 0x36: | |
7064 | case 0x39: | |
7065 | case 0x3A: | |
7066 | do_vec_compare (cpu); return; | |
7067 | ||
5ab6d79e NC |
7068 | default: |
7069 | break; | |
2e8cf49e NC |
7070 | } |
7071 | } | |
7072 | ||
ef0d8ffc | 7073 | if (INSTR (31, 21) == 0x370) |
2e8cf49e | 7074 | { |
67f101ee NC |
7075 | if (INSTR (10, 10)) |
7076 | do_vec_MOV_element (cpu); | |
7077 | else | |
7078 | do_vec_EXT (cpu); | |
2e8cf49e NC |
7079 | return; |
7080 | } | |
7081 | ||
ef0d8ffc | 7082 | switch (INSTR (21, 10)) |
2e8cf49e NC |
7083 | { |
7084 | case 0x82E: do_vec_neg (cpu); return; | |
7085 | case 0x87E: do_vec_sqrt (cpu); return; | |
7086 | default: | |
ef0d8ffc | 7087 | if (INSTR (15, 10) == 0x30) |
2e8cf49e NC |
7088 | { |
7089 | do_vec_mull (cpu); | |
7090 | return; | |
7091 | } | |
7092 | break; | |
7093 | } | |
7094 | break; | |
7095 | ||
67f101ee NC |
7096 | case 0x2f: |
7097 | switch (INSTR (15, 10)) | |
7098 | { | |
7099 | case 0x01: do_vec_SSHR_USHR (cpu); return; | |
7100 | case 0x10: | |
7101 | case 0x12: do_vec_mls_indexed (cpu); return; | |
7102 | case 0x29: do_vec_xtl (cpu); return; | |
7103 | default: | |
7104 | HALT_NYI; | |
7105 | } | |
7106 | ||
2e8cf49e NC |
7107 | default: |
7108 | break; | |
7109 | } | |
7110 | ||
7111 | HALT_NYI; | |
7112 | } | |
7113 | ||
7114 | /* 3 sources. */ | |
7115 | ||
7116 | /* Float multiply add. */ | |
7117 | static void | |
7118 | fmadds (sim_cpu *cpu) | |
7119 | { | |
ef0d8ffc NC |
7120 | unsigned sa = INSTR (14, 10); |
7121 | unsigned sm = INSTR (20, 16); | |
7122 | unsigned sn = INSTR ( 9, 5); | |
7123 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7124 | |
2cdad34c | 7125 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7126 | aarch64_set_FP_float (cpu, sd, aarch64_get_FP_float (cpu, sa) |
7127 | + aarch64_get_FP_float (cpu, sn) | |
7128 | * aarch64_get_FP_float (cpu, sm)); | |
7129 | } | |
7130 | ||
7131 | /* Double multiply add. */ | |
7132 | static void | |
7133 | fmaddd (sim_cpu *cpu) | |
7134 | { | |
ef0d8ffc NC |
7135 | unsigned sa = INSTR (14, 10); |
7136 | unsigned sm = INSTR (20, 16); | |
7137 | unsigned sn = INSTR ( 9, 5); | |
7138 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7139 | |
2cdad34c | 7140 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7141 | aarch64_set_FP_double (cpu, sd, aarch64_get_FP_double (cpu, sa) |
7142 | + aarch64_get_FP_double (cpu, sn) | |
7143 | * aarch64_get_FP_double (cpu, sm)); | |
7144 | } | |
7145 | ||
7146 | /* Float multiply subtract. */ | |
7147 | static void | |
7148 | fmsubs (sim_cpu *cpu) | |
7149 | { | |
ef0d8ffc NC |
7150 | unsigned sa = INSTR (14, 10); |
7151 | unsigned sm = INSTR (20, 16); | |
7152 | unsigned sn = INSTR ( 9, 5); | |
7153 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7154 | |
2cdad34c | 7155 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7156 | aarch64_set_FP_float (cpu, sd, aarch64_get_FP_float (cpu, sa) |
7157 | - aarch64_get_FP_float (cpu, sn) | |
7158 | * aarch64_get_FP_float (cpu, sm)); | |
7159 | } | |
7160 | ||
7161 | /* Double multiply subtract. */ | |
7162 | static void | |
7163 | fmsubd (sim_cpu *cpu) | |
7164 | { | |
ef0d8ffc NC |
7165 | unsigned sa = INSTR (14, 10); |
7166 | unsigned sm = INSTR (20, 16); | |
7167 | unsigned sn = INSTR ( 9, 5); | |
7168 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7169 | |
2cdad34c | 7170 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7171 | aarch64_set_FP_double (cpu, sd, aarch64_get_FP_double (cpu, sa) |
7172 | - aarch64_get_FP_double (cpu, sn) | |
7173 | * aarch64_get_FP_double (cpu, sm)); | |
7174 | } | |
7175 | ||
7176 | /* Float negative multiply add. */ | |
7177 | static void | |
7178 | fnmadds (sim_cpu *cpu) | |
7179 | { | |
ef0d8ffc NC |
7180 | unsigned sa = INSTR (14, 10); |
7181 | unsigned sm = INSTR (20, 16); | |
7182 | unsigned sn = INSTR ( 9, 5); | |
7183 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7184 | |
2cdad34c | 7185 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7186 | aarch64_set_FP_float (cpu, sd, - aarch64_get_FP_float (cpu, sa) |
7187 | + (- aarch64_get_FP_float (cpu, sn)) | |
7188 | * aarch64_get_FP_float (cpu, sm)); | |
7189 | } | |
7190 | ||
7191 | /* Double negative multiply add. */ | |
7192 | static void | |
7193 | fnmaddd (sim_cpu *cpu) | |
7194 | { | |
ef0d8ffc NC |
7195 | unsigned sa = INSTR (14, 10); |
7196 | unsigned sm = INSTR (20, 16); | |
7197 | unsigned sn = INSTR ( 9, 5); | |
7198 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7199 | |
2cdad34c | 7200 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7201 | aarch64_set_FP_double (cpu, sd, - aarch64_get_FP_double (cpu, sa) |
7202 | + (- aarch64_get_FP_double (cpu, sn)) | |
7203 | * aarch64_get_FP_double (cpu, sm)); | |
7204 | } | |
7205 | ||
7206 | /* Float negative multiply subtract. */ | |
7207 | static void | |
7208 | fnmsubs (sim_cpu *cpu) | |
7209 | { | |
ef0d8ffc NC |
7210 | unsigned sa = INSTR (14, 10); |
7211 | unsigned sm = INSTR (20, 16); | |
7212 | unsigned sn = INSTR ( 9, 5); | |
7213 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7214 | |
2cdad34c | 7215 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7216 | aarch64_set_FP_float (cpu, sd, - aarch64_get_FP_float (cpu, sa) |
7217 | + aarch64_get_FP_float (cpu, sn) | |
7218 | * aarch64_get_FP_float (cpu, sm)); | |
7219 | } | |
7220 | ||
7221 | /* Double negative multiply subtract. */ | |
7222 | static void | |
7223 | fnmsubd (sim_cpu *cpu) | |
7224 | { | |
ef0d8ffc NC |
7225 | unsigned sa = INSTR (14, 10); |
7226 | unsigned sm = INSTR (20, 16); | |
7227 | unsigned sn = INSTR ( 9, 5); | |
7228 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7229 | |
2cdad34c | 7230 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7231 | aarch64_set_FP_double (cpu, sd, - aarch64_get_FP_double (cpu, sa) |
7232 | + aarch64_get_FP_double (cpu, sn) | |
7233 | * aarch64_get_FP_double (cpu, sm)); | |
7234 | } | |
7235 | ||
7236 | static void | |
7237 | dexSimpleFPDataProc3Source (sim_cpu *cpu) | |
7238 | { | |
7239 | /* instr[31] ==> M : 0 ==> OK, 1 ==> UNALLOC | |
7240 | instr[30] = 0 | |
7241 | instr[29] ==> S : 0 ==> OK, 1 ==> UNALLOC | |
7242 | instr[28,25] = 1111 | |
7243 | instr[24] = 1 | |
7244 | instr[23,22] ==> type : 0 ==> single, 01 ==> double, 1x ==> UNALLOC | |
7245 | instr[21] ==> o1 : 0 ==> unnegated, 1 ==> negated | |
7246 | instr[15] ==> o2 : 0 ==> ADD, 1 ==> SUB */ | |
7247 | ||
7517e550 | 7248 | uint32_t M_S = (INSTR (31, 31) << 1) | INSTR (29, 29); |
2e8cf49e | 7249 | /* dispatch on combined type:o1:o2. */ |
7517e550 | 7250 | uint32_t dispatch = (INSTR (23, 21) << 1) | INSTR (15, 15); |
2e8cf49e NC |
7251 | |
7252 | if (M_S != 0) | |
7253 | HALT_UNALLOC; | |
7254 | ||
7255 | switch (dispatch) | |
7256 | { | |
7257 | case 0: fmadds (cpu); return; | |
7258 | case 1: fmsubs (cpu); return; | |
7259 | case 2: fnmadds (cpu); return; | |
7260 | case 3: fnmsubs (cpu); return; | |
7261 | case 4: fmaddd (cpu); return; | |
7262 | case 5: fmsubd (cpu); return; | |
7263 | case 6: fnmaddd (cpu); return; | |
7264 | case 7: fnmsubd (cpu); return; | |
7265 | default: | |
7266 | /* type > 1 is currently unallocated. */ | |
7267 | HALT_UNALLOC; | |
7268 | } | |
7269 | } | |
7270 | ||
7271 | static void | |
7272 | dexSimpleFPFixedConvert (sim_cpu *cpu) | |
7273 | { | |
7274 | HALT_NYI; | |
7275 | } | |
7276 | ||
7277 | static void | |
7278 | dexSimpleFPCondCompare (sim_cpu *cpu) | |
7279 | { | |
5ab6d79e NC |
7280 | /* instr [31,23] = 0001 1110 0 |
7281 | instr [22] = type | |
7282 | instr [21] = 1 | |
7283 | instr [20,16] = Rm | |
7284 | instr [15,12] = condition | |
7285 | instr [11,10] = 01 | |
7286 | instr [9,5] = Rn | |
7287 | instr [4] = 0 | |
7288 | instr [3,0] = nzcv */ | |
7289 | ||
7290 | unsigned rm = INSTR (20, 16); | |
7291 | unsigned rn = INSTR (9, 5); | |
7292 | ||
7293 | NYI_assert (31, 23, 0x3C); | |
7294 | NYI_assert (11, 10, 0x1); | |
7295 | NYI_assert (4, 4, 0); | |
7296 | ||
2cdad34c | 7297 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
7298 | if (! testConditionCode (cpu, INSTR (15, 12))) |
7299 | { | |
7300 | aarch64_set_CPSR (cpu, INSTR (3, 0)); | |
7301 | return; | |
7302 | } | |
7303 | ||
7304 | if (INSTR (22, 22)) | |
7305 | { | |
7306 | /* Double precision. */ | |
7307 | double val1 = aarch64_get_vec_double (cpu, rn, 0); | |
7308 | double val2 = aarch64_get_vec_double (cpu, rm, 0); | |
7309 | ||
7310 | /* FIXME: Check for NaNs. */ | |
7311 | if (val1 == val2) | |
7312 | aarch64_set_CPSR (cpu, (Z | C)); | |
7313 | else if (val1 < val2) | |
7314 | aarch64_set_CPSR (cpu, N); | |
7315 | else /* val1 > val2 */ | |
7316 | aarch64_set_CPSR (cpu, C); | |
7317 | } | |
7318 | else | |
7319 | { | |
7320 | /* Single precision. */ | |
7321 | float val1 = aarch64_get_vec_float (cpu, rn, 0); | |
7322 | float val2 = aarch64_get_vec_float (cpu, rm, 0); | |
ef0d8ffc | 7323 | |
5ab6d79e NC |
7324 | /* FIXME: Check for NaNs. */ |
7325 | if (val1 == val2) | |
7326 | aarch64_set_CPSR (cpu, (Z | C)); | |
7327 | else if (val1 < val2) | |
7328 | aarch64_set_CPSR (cpu, N); | |
7329 | else /* val1 > val2 */ | |
7330 | aarch64_set_CPSR (cpu, C); | |
7331 | } | |
2e8cf49e NC |
7332 | } |
7333 | ||
7334 | /* 2 sources. */ | |
7335 | ||
7336 | /* Float add. */ | |
7337 | static void | |
7338 | fadds (sim_cpu *cpu) | |
7339 | { | |
ef0d8ffc NC |
7340 | unsigned sm = INSTR (20, 16); |
7341 | unsigned sn = INSTR ( 9, 5); | |
7342 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7343 | |
2cdad34c | 7344 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7345 | aarch64_set_FP_float (cpu, sd, aarch64_get_FP_float (cpu, sn) |
7346 | + aarch64_get_FP_float (cpu, sm)); | |
7347 | } | |
7348 | ||
7349 | /* Double add. */ | |
7350 | static void | |
7351 | faddd (sim_cpu *cpu) | |
7352 | { | |
ef0d8ffc NC |
7353 | unsigned sm = INSTR (20, 16); |
7354 | unsigned sn = INSTR ( 9, 5); | |
7355 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7356 | |
2cdad34c | 7357 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7358 | aarch64_set_FP_double (cpu, sd, aarch64_get_FP_double (cpu, sn) |
7359 | + aarch64_get_FP_double (cpu, sm)); | |
7360 | } | |
7361 | ||
7362 | /* Float divide. */ | |
7363 | static void | |
7364 | fdivs (sim_cpu *cpu) | |
7365 | { | |
ef0d8ffc NC |
7366 | unsigned sm = INSTR (20, 16); |
7367 | unsigned sn = INSTR ( 9, 5); | |
7368 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7369 | |
2cdad34c | 7370 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7371 | aarch64_set_FP_float (cpu, sd, aarch64_get_FP_float (cpu, sn) |
7372 | / aarch64_get_FP_float (cpu, sm)); | |
7373 | } | |
7374 | ||
7375 | /* Double divide. */ | |
7376 | static void | |
7377 | fdivd (sim_cpu *cpu) | |
7378 | { | |
ef0d8ffc NC |
7379 | unsigned sm = INSTR (20, 16); |
7380 | unsigned sn = INSTR ( 9, 5); | |
7381 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7382 | |
2cdad34c | 7383 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7384 | aarch64_set_FP_double (cpu, sd, aarch64_get_FP_double (cpu, sn) |
7385 | / aarch64_get_FP_double (cpu, sm)); | |
7386 | } | |
7387 | ||
7388 | /* Float multiply. */ | |
7389 | static void | |
7390 | fmuls (sim_cpu *cpu) | |
7391 | { | |
ef0d8ffc NC |
7392 | unsigned sm = INSTR (20, 16); |
7393 | unsigned sn = INSTR ( 9, 5); | |
7394 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7395 | |
2cdad34c | 7396 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7397 | aarch64_set_FP_float (cpu, sd, aarch64_get_FP_float (cpu, sn) |
7398 | * aarch64_get_FP_float (cpu, sm)); | |
7399 | } | |
7400 | ||
7401 | /* Double multiply. */ | |
7402 | static void | |
7403 | fmuld (sim_cpu *cpu) | |
7404 | { | |
ef0d8ffc NC |
7405 | unsigned sm = INSTR (20, 16); |
7406 | unsigned sn = INSTR ( 9, 5); | |
7407 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7408 | |
2cdad34c | 7409 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7410 | aarch64_set_FP_double (cpu, sd, aarch64_get_FP_double (cpu, sn) |
7411 | * aarch64_get_FP_double (cpu, sm)); | |
7412 | } | |
7413 | ||
7414 | /* Float negate and multiply. */ | |
7415 | static void | |
7416 | fnmuls (sim_cpu *cpu) | |
7417 | { | |
ef0d8ffc NC |
7418 | unsigned sm = INSTR (20, 16); |
7419 | unsigned sn = INSTR ( 9, 5); | |
7420 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7421 | |
2cdad34c | 7422 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7423 | aarch64_set_FP_float (cpu, sd, - (aarch64_get_FP_float (cpu, sn) |
7424 | * aarch64_get_FP_float (cpu, sm))); | |
7425 | } | |
7426 | ||
7427 | /* Double negate and multiply. */ | |
7428 | static void | |
7429 | fnmuld (sim_cpu *cpu) | |
7430 | { | |
ef0d8ffc NC |
7431 | unsigned sm = INSTR (20, 16); |
7432 | unsigned sn = INSTR ( 9, 5); | |
7433 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7434 | |
2cdad34c | 7435 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7436 | aarch64_set_FP_double (cpu, sd, - (aarch64_get_FP_double (cpu, sn) |
7437 | * aarch64_get_FP_double (cpu, sm))); | |
7438 | } | |
7439 | ||
7440 | /* Float subtract. */ | |
7441 | static void | |
7442 | fsubs (sim_cpu *cpu) | |
7443 | { | |
ef0d8ffc NC |
7444 | unsigned sm = INSTR (20, 16); |
7445 | unsigned sn = INSTR ( 9, 5); | |
7446 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7447 | |
2cdad34c | 7448 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7449 | aarch64_set_FP_float (cpu, sd, aarch64_get_FP_float (cpu, sn) |
7450 | - aarch64_get_FP_float (cpu, sm)); | |
7451 | } | |
7452 | ||
7453 | /* Double subtract. */ | |
7454 | static void | |
7455 | fsubd (sim_cpu *cpu) | |
7456 | { | |
ef0d8ffc NC |
7457 | unsigned sm = INSTR (20, 16); |
7458 | unsigned sn = INSTR ( 9, 5); | |
7459 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e | 7460 | |
2cdad34c | 7461 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7462 | aarch64_set_FP_double (cpu, sd, aarch64_get_FP_double (cpu, sn) |
7463 | - aarch64_get_FP_double (cpu, sm)); | |
7464 | } | |
7465 | ||
7466 | static void | |
7467 | do_FMINNM (sim_cpu *cpu) | |
7468 | { | |
7469 | /* instr[31,23] = 0 0011 1100 | |
7470 | instr[22] = float(0)/double(1) | |
7471 | instr[21] = 1 | |
7472 | instr[20,16] = Sm | |
7473 | instr[15,10] = 01 1110 | |
7474 | instr[9,5] = Sn | |
7475 | instr[4,0] = Cpu */ | |
7476 | ||
ef0d8ffc NC |
7477 | unsigned sm = INSTR (20, 16); |
7478 | unsigned sn = INSTR ( 9, 5); | |
7479 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e NC |
7480 | |
7481 | NYI_assert (31, 23, 0x03C); | |
7482 | NYI_assert (15, 10, 0x1E); | |
7483 | ||
2cdad34c | 7484 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 7485 | if (INSTR (22, 22)) |
2e8cf49e NC |
7486 | aarch64_set_FP_double (cpu, sd, |
7487 | dminnm (aarch64_get_FP_double (cpu, sn), | |
7488 | aarch64_get_FP_double (cpu, sm))); | |
7489 | else | |
7490 | aarch64_set_FP_float (cpu, sd, | |
7491 | fminnm (aarch64_get_FP_float (cpu, sn), | |
7492 | aarch64_get_FP_float (cpu, sm))); | |
7493 | } | |
7494 | ||
7495 | static void | |
7496 | do_FMAXNM (sim_cpu *cpu) | |
7497 | { | |
7498 | /* instr[31,23] = 0 0011 1100 | |
7499 | instr[22] = float(0)/double(1) | |
7500 | instr[21] = 1 | |
7501 | instr[20,16] = Sm | |
7502 | instr[15,10] = 01 1010 | |
7503 | instr[9,5] = Sn | |
7504 | instr[4,0] = Cpu */ | |
7505 | ||
ef0d8ffc NC |
7506 | unsigned sm = INSTR (20, 16); |
7507 | unsigned sn = INSTR ( 9, 5); | |
7508 | unsigned sd = INSTR ( 4, 0); | |
2e8cf49e NC |
7509 | |
7510 | NYI_assert (31, 23, 0x03C); | |
7511 | NYI_assert (15, 10, 0x1A); | |
7512 | ||
2cdad34c | 7513 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 7514 | if (INSTR (22, 22)) |
2e8cf49e NC |
7515 | aarch64_set_FP_double (cpu, sd, |
7516 | dmaxnm (aarch64_get_FP_double (cpu, sn), | |
7517 | aarch64_get_FP_double (cpu, sm))); | |
7518 | else | |
7519 | aarch64_set_FP_float (cpu, sd, | |
7520 | fmaxnm (aarch64_get_FP_float (cpu, sn), | |
7521 | aarch64_get_FP_float (cpu, sm))); | |
7522 | } | |
7523 | ||
7524 | static void | |
7525 | dexSimpleFPDataProc2Source (sim_cpu *cpu) | |
7526 | { | |
7527 | /* instr[31] ==> M : 0 ==> OK, 1 ==> UNALLOC | |
7528 | instr[30] = 0 | |
7529 | instr[29] ==> S : 0 ==> OK, 1 ==> UNALLOC | |
7530 | instr[28,25] = 1111 | |
7531 | instr[24] = 0 | |
7532 | instr[23,22] ==> type : 0 ==> single, 01 ==> double, 1x ==> UNALLOC | |
7533 | instr[21] = 1 | |
7534 | instr[20,16] = Vm | |
7535 | instr[15,12] ==> opcode : 0000 ==> FMUL, 0001 ==> FDIV | |
7536 | 0010 ==> FADD, 0011 ==> FSUB, | |
7537 | 0100 ==> FMAX, 0101 ==> FMIN | |
7538 | 0110 ==> FMAXNM, 0111 ==> FMINNM | |
7539 | 1000 ==> FNMUL, ow ==> UNALLOC | |
7540 | instr[11,10] = 10 | |
7541 | instr[9,5] = Vn | |
7542 | instr[4,0] = Vd */ | |
7543 | ||
7517e550 | 7544 | uint32_t M_S = (INSTR (31, 31) << 1) | INSTR (29, 29); |
ef0d8ffc | 7545 | uint32_t type = INSTR (23, 22); |
2e8cf49e | 7546 | /* Dispatch on opcode. */ |
ef0d8ffc | 7547 | uint32_t dispatch = INSTR (15, 12); |
2e8cf49e NC |
7548 | |
7549 | if (type > 1) | |
7550 | HALT_UNALLOC; | |
7551 | ||
7552 | if (M_S != 0) | |
7553 | HALT_UNALLOC; | |
7554 | ||
7555 | if (type) | |
7556 | switch (dispatch) | |
7557 | { | |
7558 | case 0: fmuld (cpu); return; | |
7559 | case 1: fdivd (cpu); return; | |
7560 | case 2: faddd (cpu); return; | |
7561 | case 3: fsubd (cpu); return; | |
7562 | case 6: do_FMAXNM (cpu); return; | |
7563 | case 7: do_FMINNM (cpu); return; | |
7564 | case 8: fnmuld (cpu); return; | |
7565 | ||
7566 | /* Have not yet implemented fmax and fmin. */ | |
7567 | case 4: | |
7568 | case 5: | |
7569 | HALT_NYI; | |
7570 | ||
7571 | default: | |
7572 | HALT_UNALLOC; | |
7573 | } | |
7574 | else /* type == 0 => floats. */ | |
7575 | switch (dispatch) | |
7576 | { | |
7577 | case 0: fmuls (cpu); return; | |
7578 | case 1: fdivs (cpu); return; | |
7579 | case 2: fadds (cpu); return; | |
7580 | case 3: fsubs (cpu); return; | |
7581 | case 6: do_FMAXNM (cpu); return; | |
7582 | case 7: do_FMINNM (cpu); return; | |
7583 | case 8: fnmuls (cpu); return; | |
7584 | ||
7585 | case 4: | |
7586 | case 5: | |
7587 | HALT_NYI; | |
7588 | ||
7589 | default: | |
7590 | HALT_UNALLOC; | |
7591 | } | |
7592 | } | |
7593 | ||
7594 | static void | |
7595 | dexSimpleFPCondSelect (sim_cpu *cpu) | |
7596 | { | |
7597 | /* FCSEL | |
7598 | instr[31,23] = 0 0011 1100 | |
7599 | instr[22] = 0=>single 1=>double | |
7600 | instr[21] = 1 | |
7601 | instr[20,16] = Sm | |
7602 | instr[15,12] = cond | |
7603 | instr[11,10] = 11 | |
7604 | instr[9,5] = Sn | |
7605 | instr[4,0] = Cpu */ | |
ef0d8ffc NC |
7606 | unsigned sm = INSTR (20, 16); |
7607 | unsigned sn = INSTR ( 9, 5); | |
7608 | unsigned sd = INSTR ( 4, 0); | |
7609 | uint32_t set = testConditionCode (cpu, INSTR (15, 12)); | |
2e8cf49e NC |
7610 | |
7611 | NYI_assert (31, 23, 0x03C); | |
7612 | NYI_assert (11, 10, 0x3); | |
7613 | ||
2cdad34c | 7614 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 7615 | if (INSTR (22, 22)) |
c0386d4d JW |
7616 | aarch64_set_FP_double (cpu, sd, (set ? aarch64_get_FP_double (cpu, sn) |
7617 | : aarch64_get_FP_double (cpu, sm))); | |
2e8cf49e | 7618 | else |
c0386d4d JW |
7619 | aarch64_set_FP_float (cpu, sd, (set ? aarch64_get_FP_float (cpu, sn) |
7620 | : aarch64_get_FP_float (cpu, sm))); | |
2e8cf49e NC |
7621 | } |
7622 | ||
7623 | /* Store 32 bit unscaled signed 9 bit. */ | |
7624 | static void | |
7625 | fsturs (sim_cpu *cpu, int32_t offset) | |
7626 | { | |
ef0d8ffc NC |
7627 | unsigned int rn = INSTR (9, 5); |
7628 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7629 | |
2cdad34c | 7630 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
88ddd4a1 JW |
7631 | aarch64_set_mem_u32 (cpu, aarch64_get_reg_u64 (cpu, rn, 1) + offset, |
7632 | aarch64_get_vec_u32 (cpu, st, 0)); | |
2e8cf49e NC |
7633 | } |
7634 | ||
7635 | /* Store 64 bit unscaled signed 9 bit. */ | |
7636 | static void | |
7637 | fsturd (sim_cpu *cpu, int32_t offset) | |
7638 | { | |
ef0d8ffc NC |
7639 | unsigned int rn = INSTR (9, 5); |
7640 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7641 | |
2cdad34c | 7642 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
88ddd4a1 JW |
7643 | aarch64_set_mem_u64 (cpu, aarch64_get_reg_u64 (cpu, rn, 1) + offset, |
7644 | aarch64_get_vec_u64 (cpu, st, 0)); | |
2e8cf49e NC |
7645 | } |
7646 | ||
7647 | /* Store 128 bit unscaled signed 9 bit. */ | |
7648 | static void | |
7649 | fsturq (sim_cpu *cpu, int32_t offset) | |
7650 | { | |
ef0d8ffc NC |
7651 | unsigned int rn = INSTR (9, 5); |
7652 | unsigned int st = INSTR (4, 0); | |
2e8cf49e NC |
7653 | FRegister a; |
7654 | ||
2cdad34c | 7655 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
88ddd4a1 | 7656 | aarch64_get_FP_long_double (cpu, st, & a); |
2e8cf49e | 7657 | aarch64_set_mem_long_double (cpu, |
88ddd4a1 | 7658 | aarch64_get_reg_u64 (cpu, rn, 1) |
2e8cf49e NC |
7659 | + offset, a); |
7660 | } | |
7661 | ||
7662 | /* TODO FP move register. */ | |
7663 | ||
7664 | /* 32 bit fp to fp move register. */ | |
7665 | static void | |
7666 | ffmovs (sim_cpu *cpu) | |
7667 | { | |
ef0d8ffc NC |
7668 | unsigned int rn = INSTR (9, 5); |
7669 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7670 | |
2cdad34c | 7671 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7672 | aarch64_set_FP_float (cpu, st, aarch64_get_FP_float (cpu, rn)); |
7673 | } | |
7674 | ||
7675 | /* 64 bit fp to fp move register. */ | |
7676 | static void | |
7677 | ffmovd (sim_cpu *cpu) | |
7678 | { | |
ef0d8ffc NC |
7679 | unsigned int rn = INSTR (9, 5); |
7680 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7681 | |
2cdad34c | 7682 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7683 | aarch64_set_FP_double (cpu, st, aarch64_get_FP_double (cpu, rn)); |
7684 | } | |
7685 | ||
7686 | /* 32 bit GReg to Vec move register. */ | |
7687 | static void | |
7688 | fgmovs (sim_cpu *cpu) | |
7689 | { | |
ef0d8ffc NC |
7690 | unsigned int rn = INSTR (9, 5); |
7691 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7692 | |
2cdad34c | 7693 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7694 | aarch64_set_vec_u32 (cpu, st, 0, aarch64_get_reg_u32 (cpu, rn, NO_SP)); |
7695 | } | |
7696 | ||
7697 | /* 64 bit g to fp move register. */ | |
7698 | static void | |
7699 | fgmovd (sim_cpu *cpu) | |
7700 | { | |
ef0d8ffc NC |
7701 | unsigned int rn = INSTR (9, 5); |
7702 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7703 | |
2cdad34c | 7704 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7705 | aarch64_set_vec_u64 (cpu, st, 0, aarch64_get_reg_u64 (cpu, rn, NO_SP)); |
7706 | } | |
7707 | ||
7708 | /* 32 bit fp to g move register. */ | |
7709 | static void | |
7710 | gfmovs (sim_cpu *cpu) | |
7711 | { | |
ef0d8ffc NC |
7712 | unsigned int rn = INSTR (9, 5); |
7713 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7714 | |
2cdad34c | 7715 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7716 | aarch64_set_reg_u64 (cpu, st, NO_SP, aarch64_get_vec_u32 (cpu, rn, 0)); |
7717 | } | |
7718 | ||
7719 | /* 64 bit fp to g move register. */ | |
7720 | static void | |
7721 | gfmovd (sim_cpu *cpu) | |
7722 | { | |
ef0d8ffc NC |
7723 | unsigned int rn = INSTR (9, 5); |
7724 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7725 | |
2cdad34c | 7726 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7727 | aarch64_set_reg_u64 (cpu, st, NO_SP, aarch64_get_vec_u64 (cpu, rn, 0)); |
7728 | } | |
7729 | ||
7730 | /* FP move immediate | |
7731 | ||
7732 | These install an immediate 8 bit value in the target register | |
7733 | where the 8 bits comprise 1 sign bit, 4 bits of fraction and a 3 | |
7734 | bit exponent. */ | |
7735 | ||
7736 | static void | |
7737 | fmovs (sim_cpu *cpu) | |
7738 | { | |
ef0d8ffc NC |
7739 | unsigned int sd = INSTR (4, 0); |
7740 | uint32_t imm = INSTR (20, 13); | |
2e8cf49e NC |
7741 | float f = fp_immediate_for_encoding_32 (imm); |
7742 | ||
2cdad34c | 7743 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7744 | aarch64_set_FP_float (cpu, sd, f); |
7745 | } | |
7746 | ||
7747 | static void | |
7748 | fmovd (sim_cpu *cpu) | |
7749 | { | |
ef0d8ffc NC |
7750 | unsigned int sd = INSTR (4, 0); |
7751 | uint32_t imm = INSTR (20, 13); | |
2e8cf49e NC |
7752 | double d = fp_immediate_for_encoding_64 (imm); |
7753 | ||
2cdad34c | 7754 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7755 | aarch64_set_FP_double (cpu, sd, d); |
7756 | } | |
7757 | ||
7758 | static void | |
7759 | dexSimpleFPImmediate (sim_cpu *cpu) | |
7760 | { | |
7761 | /* instr[31,23] == 00111100 | |
7762 | instr[22] == type : single(0)/double(1) | |
7763 | instr[21] == 1 | |
7764 | instr[20,13] == imm8 | |
7765 | instr[12,10] == 100 | |
7766 | instr[9,5] == imm5 : 00000 ==> PK, ow ==> UNALLOC | |
7767 | instr[4,0] == Rd */ | |
ef0d8ffc | 7768 | uint32_t imm5 = INSTR (9, 5); |
2e8cf49e NC |
7769 | |
7770 | NYI_assert (31, 23, 0x3C); | |
7771 | ||
7772 | if (imm5 != 0) | |
7773 | HALT_UNALLOC; | |
7774 | ||
ef0d8ffc | 7775 | if (INSTR (22, 22)) |
2e8cf49e NC |
7776 | fmovd (cpu); |
7777 | else | |
7778 | fmovs (cpu); | |
7779 | } | |
7780 | ||
7781 | /* TODO specific decode and execute for group Load Store. */ | |
7782 | ||
7783 | /* TODO FP load/store single register (unscaled offset). */ | |
7784 | ||
7785 | /* TODO load 8 bit unscaled signed 9 bit. */ | |
7786 | /* TODO load 16 bit unscaled signed 9 bit. */ | |
7787 | ||
7788 | /* Load 32 bit unscaled signed 9 bit. */ | |
7789 | static void | |
7790 | fldurs (sim_cpu *cpu, int32_t offset) | |
7791 | { | |
ef0d8ffc NC |
7792 | unsigned int rn = INSTR (9, 5); |
7793 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7794 | |
2cdad34c | 7795 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
7796 | aarch64_set_vec_u32 (cpu, st, 0, aarch64_get_mem_u32 |
7797 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset)); | |
2e8cf49e NC |
7798 | } |
7799 | ||
7800 | /* Load 64 bit unscaled signed 9 bit. */ | |
7801 | static void | |
7802 | fldurd (sim_cpu *cpu, int32_t offset) | |
7803 | { | |
ef0d8ffc NC |
7804 | unsigned int rn = INSTR (9, 5); |
7805 | unsigned int st = INSTR (4, 0); | |
2e8cf49e | 7806 | |
2cdad34c | 7807 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
7808 | aarch64_set_vec_u64 (cpu, st, 0, aarch64_get_mem_u64 |
7809 | (cpu, aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset)); | |
2e8cf49e NC |
7810 | } |
7811 | ||
7812 | /* Load 128 bit unscaled signed 9 bit. */ | |
7813 | static void | |
7814 | fldurq (sim_cpu *cpu, int32_t offset) | |
7815 | { | |
ef0d8ffc NC |
7816 | unsigned int rn = INSTR (9, 5); |
7817 | unsigned int st = INSTR (4, 0); | |
2e8cf49e NC |
7818 | FRegister a; |
7819 | uint64_t addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset; | |
7820 | ||
2cdad34c | 7821 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7822 | aarch64_get_mem_long_double (cpu, addr, & a); |
7823 | aarch64_set_FP_long_double (cpu, st, a); | |
7824 | } | |
7825 | ||
7826 | /* TODO store 8 bit unscaled signed 9 bit. */ | |
7827 | /* TODO store 16 bit unscaled signed 9 bit. */ | |
7828 | ||
7829 | ||
7830 | /* 1 source. */ | |
7831 | ||
7832 | /* Float absolute value. */ | |
7833 | static void | |
7834 | fabss (sim_cpu *cpu) | |
7835 | { | |
ef0d8ffc NC |
7836 | unsigned sn = INSTR (9, 5); |
7837 | unsigned sd = INSTR (4, 0); | |
2e8cf49e NC |
7838 | float value = aarch64_get_FP_float (cpu, sn); |
7839 | ||
2cdad34c | 7840 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7841 | aarch64_set_FP_float (cpu, sd, fabsf (value)); |
7842 | } | |
7843 | ||
7844 | /* Double absolute value. */ | |
7845 | static void | |
7846 | fabcpu (sim_cpu *cpu) | |
7847 | { | |
ef0d8ffc NC |
7848 | unsigned sn = INSTR (9, 5); |
7849 | unsigned sd = INSTR (4, 0); | |
2e8cf49e NC |
7850 | double value = aarch64_get_FP_double (cpu, sn); |
7851 | ||
2cdad34c | 7852 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7853 | aarch64_set_FP_double (cpu, sd, fabs (value)); |
7854 | } | |
7855 | ||
7856 | /* Float negative value. */ | |
7857 | static void | |
7858 | fnegs (sim_cpu *cpu) | |
7859 | { | |
ef0d8ffc NC |
7860 | unsigned sn = INSTR (9, 5); |
7861 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 7862 | |
2cdad34c | 7863 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7864 | aarch64_set_FP_float (cpu, sd, - aarch64_get_FP_float (cpu, sn)); |
7865 | } | |
7866 | ||
7867 | /* Double negative value. */ | |
7868 | static void | |
7869 | fnegd (sim_cpu *cpu) | |
7870 | { | |
ef0d8ffc NC |
7871 | unsigned sn = INSTR (9, 5); |
7872 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 7873 | |
2cdad34c | 7874 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7875 | aarch64_set_FP_double (cpu, sd, - aarch64_get_FP_double (cpu, sn)); |
7876 | } | |
7877 | ||
7878 | /* Float square root. */ | |
7879 | static void | |
7880 | fsqrts (sim_cpu *cpu) | |
7881 | { | |
ef0d8ffc NC |
7882 | unsigned sn = INSTR (9, 5); |
7883 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 7884 | |
2cdad34c | 7885 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
0f118bc7 | 7886 | aarch64_set_FP_float (cpu, sd, sqrtf (aarch64_get_FP_float (cpu, sn))); |
2e8cf49e NC |
7887 | } |
7888 | ||
7889 | /* Double square root. */ | |
7890 | static void | |
7891 | fsqrtd (sim_cpu *cpu) | |
7892 | { | |
ef0d8ffc NC |
7893 | unsigned sn = INSTR (9, 5); |
7894 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 7895 | |
2cdad34c | 7896 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7897 | aarch64_set_FP_double (cpu, sd, |
7898 | sqrt (aarch64_get_FP_double (cpu, sn))); | |
7899 | } | |
7900 | ||
7901 | /* Convert double to float. */ | |
7902 | static void | |
7903 | fcvtds (sim_cpu *cpu) | |
7904 | { | |
ef0d8ffc NC |
7905 | unsigned sn = INSTR (9, 5); |
7906 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 7907 | |
2cdad34c | 7908 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7909 | aarch64_set_FP_float (cpu, sd, (float) aarch64_get_FP_double (cpu, sn)); |
7910 | } | |
7911 | ||
7912 | /* Convert float to double. */ | |
7913 | static void | |
7914 | fcvtcpu (sim_cpu *cpu) | |
7915 | { | |
ef0d8ffc NC |
7916 | unsigned sn = INSTR (9, 5); |
7917 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 7918 | |
2cdad34c | 7919 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
7920 | aarch64_set_FP_double (cpu, sd, (double) aarch64_get_FP_float (cpu, sn)); |
7921 | } | |
7922 | ||
7923 | static void | |
7924 | do_FRINT (sim_cpu *cpu) | |
7925 | { | |
7926 | /* instr[31,23] = 0001 1110 0 | |
7927 | instr[22] = single(0)/double(1) | |
7928 | instr[21,18] = 1001 | |
7929 | instr[17,15] = rounding mode | |
7930 | instr[14,10] = 10000 | |
7931 | instr[9,5] = source | |
7932 | instr[4,0] = dest */ | |
7933 | ||
7934 | float val; | |
ef0d8ffc NC |
7935 | unsigned rs = INSTR (9, 5); |
7936 | unsigned rd = INSTR (4, 0); | |
7937 | unsigned int rmode = INSTR (17, 15); | |
2e8cf49e NC |
7938 | |
7939 | NYI_assert (31, 23, 0x03C); | |
7940 | NYI_assert (21, 18, 0x9); | |
7941 | NYI_assert (14, 10, 0x10); | |
7942 | ||
7943 | if (rmode == 6 || rmode == 7) | |
7944 | /* FIXME: Add support for rmode == 6 exactness check. */ | |
7945 | rmode = uimm (aarch64_get_FPSR (cpu), 23, 22); | |
7946 | ||
2cdad34c | 7947 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 7948 | if (INSTR (22, 22)) |
2e8cf49e NC |
7949 | { |
7950 | double val = aarch64_get_FP_double (cpu, rs); | |
7951 | ||
7952 | switch (rmode) | |
7953 | { | |
7954 | case 0: /* mode N: nearest or even. */ | |
7955 | { | |
7956 | double rval = round (val); | |
7957 | ||
7958 | if (val - rval == 0.5) | |
7959 | { | |
7960 | if (((rval / 2.0) * 2.0) != rval) | |
7961 | rval += 1.0; | |
7962 | } | |
7963 | ||
7964 | aarch64_set_FP_double (cpu, rd, round (val)); | |
7965 | return; | |
7966 | } | |
7967 | ||
7968 | case 1: /* mode P: towards +inf. */ | |
7969 | if (val < 0.0) | |
7970 | aarch64_set_FP_double (cpu, rd, trunc (val)); | |
7971 | else | |
7972 | aarch64_set_FP_double (cpu, rd, round (val)); | |
7973 | return; | |
7974 | ||
7975 | case 2: /* mode M: towards -inf. */ | |
7976 | if (val < 0.0) | |
7977 | aarch64_set_FP_double (cpu, rd, round (val)); | |
7978 | else | |
7979 | aarch64_set_FP_double (cpu, rd, trunc (val)); | |
7980 | return; | |
7981 | ||
7982 | case 3: /* mode Z: towards 0. */ | |
7983 | aarch64_set_FP_double (cpu, rd, trunc (val)); | |
7984 | return; | |
7985 | ||
7986 | case 4: /* mode A: away from 0. */ | |
7987 | aarch64_set_FP_double (cpu, rd, round (val)); | |
7988 | return; | |
7989 | ||
7990 | case 6: /* mode X: use FPCR with exactness check. */ | |
7991 | case 7: /* mode I: use FPCR mode. */ | |
7992 | HALT_NYI; | |
7993 | ||
7994 | default: | |
7995 | HALT_UNALLOC; | |
7996 | } | |
7997 | } | |
7998 | ||
7999 | val = aarch64_get_FP_float (cpu, rs); | |
8000 | ||
8001 | switch (rmode) | |
8002 | { | |
8003 | case 0: /* mode N: nearest or even. */ | |
8004 | { | |
8005 | float rval = roundf (val); | |
8006 | ||
8007 | if (val - rval == 0.5) | |
8008 | { | |
8009 | if (((rval / 2.0) * 2.0) != rval) | |
8010 | rval += 1.0; | |
8011 | } | |
8012 | ||
8013 | aarch64_set_FP_float (cpu, rd, rval); | |
8014 | return; | |
8015 | } | |
8016 | ||
8017 | case 1: /* mode P: towards +inf. */ | |
8018 | if (val < 0.0) | |
8019 | aarch64_set_FP_float (cpu, rd, truncf (val)); | |
8020 | else | |
8021 | aarch64_set_FP_float (cpu, rd, roundf (val)); | |
8022 | return; | |
8023 | ||
8024 | case 2: /* mode M: towards -inf. */ | |
8025 | if (val < 0.0) | |
8026 | aarch64_set_FP_float (cpu, rd, truncf (val)); | |
8027 | else | |
8028 | aarch64_set_FP_float (cpu, rd, roundf (val)); | |
8029 | return; | |
8030 | ||
8031 | case 3: /* mode Z: towards 0. */ | |
8032 | aarch64_set_FP_float (cpu, rd, truncf (val)); | |
8033 | return; | |
8034 | ||
8035 | case 4: /* mode A: away from 0. */ | |
8036 | aarch64_set_FP_float (cpu, rd, roundf (val)); | |
8037 | return; | |
8038 | ||
8039 | case 6: /* mode X: use FPCR with exactness check. */ | |
8040 | case 7: /* mode I: use FPCR mode. */ | |
8041 | HALT_NYI; | |
8042 | ||
8043 | default: | |
8044 | HALT_UNALLOC; | |
8045 | } | |
8046 | } | |
8047 | ||
5ab6d79e NC |
8048 | /* Convert half to float. */ |
8049 | static void | |
ef0d8ffc | 8050 | do_FCVT_half_to_single (sim_cpu *cpu) |
5ab6d79e NC |
8051 | { |
8052 | unsigned rn = INSTR (9, 5); | |
8053 | unsigned rd = INSTR (4, 0); | |
8054 | ||
8055 | NYI_assert (31, 10, 0x7B890); | |
8056 | ||
2cdad34c | 8057 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
8058 | aarch64_set_FP_float (cpu, rd, (float) aarch64_get_FP_half (cpu, rn)); |
8059 | } | |
8060 | ||
7517e550 | 8061 | /* Convert half to double. */ |
5ab6d79e | 8062 | static void |
ef0d8ffc | 8063 | do_FCVT_half_to_double (sim_cpu *cpu) |
5ab6d79e NC |
8064 | { |
8065 | unsigned rn = INSTR (9, 5); | |
8066 | unsigned rd = INSTR (4, 0); | |
8067 | ||
8068 | NYI_assert (31, 10, 0x7B8B0); | |
ef0d8ffc | 8069 | |
2cdad34c | 8070 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
8071 | aarch64_set_FP_double (cpu, rd, (double) aarch64_get_FP_half (cpu, rn)); |
8072 | } | |
8073 | ||
8074 | static void | |
ef0d8ffc | 8075 | do_FCVT_single_to_half (sim_cpu *cpu) |
5ab6d79e NC |
8076 | { |
8077 | unsigned rn = INSTR (9, 5); | |
8078 | unsigned rd = INSTR (4, 0); | |
8079 | ||
8080 | NYI_assert (31, 10, 0x788F0); | |
8081 | ||
2cdad34c | 8082 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
8083 | aarch64_set_FP_half (cpu, rd, aarch64_get_FP_float (cpu, rn)); |
8084 | } | |
8085 | ||
7517e550 | 8086 | /* Convert double to half. */ |
5ab6d79e | 8087 | static void |
ef0d8ffc | 8088 | do_FCVT_double_to_half (sim_cpu *cpu) |
5ab6d79e NC |
8089 | { |
8090 | unsigned rn = INSTR (9, 5); | |
8091 | unsigned rd = INSTR (4, 0); | |
8092 | ||
8093 | NYI_assert (31, 10, 0x798F0); | |
ef0d8ffc | 8094 | |
2cdad34c | 8095 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
8096 | aarch64_set_FP_half (cpu, rd, (float) aarch64_get_FP_double (cpu, rn)); |
8097 | } | |
8098 | ||
2e8cf49e NC |
8099 | static void |
8100 | dexSimpleFPDataProc1Source (sim_cpu *cpu) | |
8101 | { | |
8102 | /* instr[31] ==> M : 0 ==> OK, 1 ==> UNALLOC | |
8103 | instr[30] = 0 | |
8104 | instr[29] ==> S : 0 ==> OK, 1 ==> UNALLOC | |
8105 | instr[28,25] = 1111 | |
8106 | instr[24] = 0 | |
8107 | instr[23,22] ==> type : 00 ==> source is single, | |
8108 | 01 ==> source is double | |
8109 | 10 ==> UNALLOC | |
8110 | 11 ==> UNALLOC or source is half | |
8111 | instr[21] = 1 | |
8112 | instr[20,15] ==> opcode : with type 00 or 01 | |
8113 | 000000 ==> FMOV, 000001 ==> FABS, | |
8114 | 000010 ==> FNEG, 000011 ==> FSQRT, | |
8115 | 000100 ==> UNALLOC, 000101 ==> FCVT,(to single/double) | |
8116 | 000110 ==> UNALLOC, 000111 ==> FCVT (to half) | |
8117 | 001000 ==> FRINTN, 001001 ==> FRINTP, | |
8118 | 001010 ==> FRINTM, 001011 ==> FRINTZ, | |
8119 | 001100 ==> FRINTA, 001101 ==> UNALLOC | |
8120 | 001110 ==> FRINTX, 001111 ==> FRINTI | |
8121 | with type 11 | |
8122 | 000100 ==> FCVT (half-to-single) | |
8123 | 000101 ==> FCVT (half-to-double) | |
8124 | instr[14,10] = 10000. */ | |
8125 | ||
7517e550 | 8126 | uint32_t M_S = (INSTR (31, 31) << 1) | INSTR (29, 29); |
ef0d8ffc NC |
8127 | uint32_t type = INSTR (23, 22); |
8128 | uint32_t opcode = INSTR (20, 15); | |
2e8cf49e NC |
8129 | |
8130 | if (M_S != 0) | |
8131 | HALT_UNALLOC; | |
8132 | ||
8133 | if (type == 3) | |
8134 | { | |
5ab6d79e NC |
8135 | if (opcode == 4) |
8136 | do_FCVT_half_to_single (cpu); | |
8137 | else if (opcode == 5) | |
8138 | do_FCVT_half_to_double (cpu); | |
2e8cf49e NC |
8139 | else |
8140 | HALT_UNALLOC; | |
5ab6d79e | 8141 | return; |
2e8cf49e NC |
8142 | } |
8143 | ||
8144 | if (type == 2) | |
8145 | HALT_UNALLOC; | |
8146 | ||
8147 | switch (opcode) | |
8148 | { | |
8149 | case 0: | |
8150 | if (type) | |
8151 | ffmovd (cpu); | |
8152 | else | |
8153 | ffmovs (cpu); | |
8154 | return; | |
8155 | ||
8156 | case 1: | |
8157 | if (type) | |
8158 | fabcpu (cpu); | |
8159 | else | |
8160 | fabss (cpu); | |
8161 | return; | |
8162 | ||
8163 | case 2: | |
8164 | if (type) | |
8165 | fnegd (cpu); | |
8166 | else | |
8167 | fnegs (cpu); | |
8168 | return; | |
8169 | ||
8170 | case 3: | |
8171 | if (type) | |
8172 | fsqrtd (cpu); | |
8173 | else | |
8174 | fsqrts (cpu); | |
8175 | return; | |
8176 | ||
8177 | case 4: | |
8178 | if (type) | |
8179 | fcvtds (cpu); | |
8180 | else | |
8181 | HALT_UNALLOC; | |
8182 | return; | |
8183 | ||
8184 | case 5: | |
8185 | if (type) | |
8186 | HALT_UNALLOC; | |
8187 | fcvtcpu (cpu); | |
8188 | return; | |
8189 | ||
8190 | case 8: /* FRINTN etc. */ | |
8191 | case 9: | |
8192 | case 10: | |
8193 | case 11: | |
8194 | case 12: | |
8195 | case 14: | |
8196 | case 15: | |
8197 | do_FRINT (cpu); | |
8198 | return; | |
8199 | ||
5ab6d79e NC |
8200 | case 7: |
8201 | if (INSTR (22, 22)) | |
8202 | do_FCVT_double_to_half (cpu); | |
8203 | else | |
8204 | do_FCVT_single_to_half (cpu); | |
8205 | return; | |
8206 | ||
2e8cf49e NC |
8207 | case 13: |
8208 | HALT_NYI; | |
8209 | ||
8210 | default: | |
8211 | HALT_UNALLOC; | |
8212 | } | |
8213 | } | |
8214 | ||
8215 | /* 32 bit signed int to float. */ | |
8216 | static void | |
8217 | scvtf32 (sim_cpu *cpu) | |
8218 | { | |
ef0d8ffc NC |
8219 | unsigned rn = INSTR (9, 5); |
8220 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 8221 | |
2cdad34c | 8222 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8223 | aarch64_set_FP_float |
8224 | (cpu, sd, (float) aarch64_get_reg_s32 (cpu, rn, NO_SP)); | |
8225 | } | |
8226 | ||
8227 | /* signed int to float. */ | |
8228 | static void | |
8229 | scvtf (sim_cpu *cpu) | |
8230 | { | |
ef0d8ffc NC |
8231 | unsigned rn = INSTR (9, 5); |
8232 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 8233 | |
2cdad34c | 8234 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8235 | aarch64_set_FP_float |
8236 | (cpu, sd, (float) aarch64_get_reg_s64 (cpu, rn, NO_SP)); | |
8237 | } | |
8238 | ||
8239 | /* 32 bit signed int to double. */ | |
8240 | static void | |
8241 | scvtd32 (sim_cpu *cpu) | |
8242 | { | |
ef0d8ffc NC |
8243 | unsigned rn = INSTR (9, 5); |
8244 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 8245 | |
2cdad34c | 8246 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8247 | aarch64_set_FP_double |
8248 | (cpu, sd, (double) aarch64_get_reg_s32 (cpu, rn, NO_SP)); | |
8249 | } | |
8250 | ||
8251 | /* signed int to double. */ | |
8252 | static void | |
8253 | scvtd (sim_cpu *cpu) | |
8254 | { | |
ef0d8ffc NC |
8255 | unsigned rn = INSTR (9, 5); |
8256 | unsigned sd = INSTR (4, 0); | |
2e8cf49e | 8257 | |
2cdad34c | 8258 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8259 | aarch64_set_FP_double |
8260 | (cpu, sd, (double) aarch64_get_reg_s64 (cpu, rn, NO_SP)); | |
8261 | } | |
8262 | ||
8263 | static const float FLOAT_INT_MAX = (float) INT_MAX; | |
8264 | static const float FLOAT_INT_MIN = (float) INT_MIN; | |
8265 | static const double DOUBLE_INT_MAX = (double) INT_MAX; | |
8266 | static const double DOUBLE_INT_MIN = (double) INT_MIN; | |
8267 | static const float FLOAT_LONG_MAX = (float) LONG_MAX; | |
8268 | static const float FLOAT_LONG_MIN = (float) LONG_MIN; | |
8269 | static const double DOUBLE_LONG_MAX = (double) LONG_MAX; | |
8270 | static const double DOUBLE_LONG_MIN = (double) LONG_MIN; | |
8271 | ||
c0386d4d JW |
8272 | #define UINT_MIN 0 |
8273 | #define ULONG_MIN 0 | |
8274 | static const float FLOAT_UINT_MAX = (float) UINT_MAX; | |
8275 | static const float FLOAT_UINT_MIN = (float) UINT_MIN; | |
8276 | static const double DOUBLE_UINT_MAX = (double) UINT_MAX; | |
8277 | static const double DOUBLE_UINT_MIN = (double) UINT_MIN; | |
8278 | static const float FLOAT_ULONG_MAX = (float) ULONG_MAX; | |
8279 | static const float FLOAT_ULONG_MIN = (float) ULONG_MIN; | |
8280 | static const double DOUBLE_ULONG_MAX = (double) ULONG_MAX; | |
8281 | static const double DOUBLE_ULONG_MIN = (double) ULONG_MIN; | |
8282 | ||
2e8cf49e NC |
8283 | /* Check for FP exception conditions: |
8284 | NaN raises IO | |
8285 | Infinity raises IO | |
8286 | Out of Range raises IO and IX and saturates value | |
8287 | Denormal raises ID and IX and sets to zero. */ | |
8288 | #define RAISE_EXCEPTIONS(F, VALUE, FTYPE, ITYPE) \ | |
8289 | do \ | |
8290 | { \ | |
8291 | switch (fpclassify (F)) \ | |
8292 | { \ | |
8293 | case FP_INFINITE: \ | |
8294 | case FP_NAN: \ | |
8295 | aarch64_set_FPSR (cpu, IO); \ | |
8296 | if (signbit (F)) \ | |
8297 | VALUE = ITYPE##_MAX; \ | |
8298 | else \ | |
8299 | VALUE = ITYPE##_MIN; \ | |
8300 | break; \ | |
8301 | \ | |
8302 | case FP_NORMAL: \ | |
8303 | if (F >= FTYPE##_##ITYPE##_MAX) \ | |
8304 | { \ | |
8305 | aarch64_set_FPSR_bits (cpu, IO | IX, IO | IX); \ | |
8306 | VALUE = ITYPE##_MAX; \ | |
8307 | } \ | |
8308 | else if (F <= FTYPE##_##ITYPE##_MIN) \ | |
8309 | { \ | |
8310 | aarch64_set_FPSR_bits (cpu, IO | IX, IO | IX); \ | |
8311 | VALUE = ITYPE##_MIN; \ | |
8312 | } \ | |
8313 | break; \ | |
8314 | \ | |
8315 | case FP_SUBNORMAL: \ | |
8316 | aarch64_set_FPSR_bits (cpu, IO | IX | ID, IX | ID); \ | |
8317 | VALUE = 0; \ | |
8318 | break; \ | |
8319 | \ | |
8320 | default: \ | |
8321 | case FP_ZERO: \ | |
8322 | VALUE = 0; \ | |
8323 | break; \ | |
8324 | } \ | |
8325 | } \ | |
8326 | while (0) | |
8327 | ||
8328 | /* 32 bit convert float to signed int truncate towards zero. */ | |
8329 | static void | |
8330 | fcvtszs32 (sim_cpu *cpu) | |
8331 | { | |
ef0d8ffc NC |
8332 | unsigned sn = INSTR (9, 5); |
8333 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8334 | /* TODO : check that this rounds toward zero. */ |
8335 | float f = aarch64_get_FP_float (cpu, sn); | |
8336 | int32_t value = (int32_t) f; | |
8337 | ||
8338 | RAISE_EXCEPTIONS (f, value, FLOAT, INT); | |
8339 | ||
2cdad34c | 8340 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8341 | /* Avoid sign extension to 64 bit. */ |
8342 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (uint32_t) value); | |
8343 | } | |
8344 | ||
8345 | /* 64 bit convert float to signed int truncate towards zero. */ | |
8346 | static void | |
8347 | fcvtszs (sim_cpu *cpu) | |
8348 | { | |
ef0d8ffc NC |
8349 | unsigned sn = INSTR (9, 5); |
8350 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8351 | float f = aarch64_get_FP_float (cpu, sn); |
8352 | int64_t value = (int64_t) f; | |
8353 | ||
8354 | RAISE_EXCEPTIONS (f, value, FLOAT, LONG); | |
8355 | ||
2cdad34c | 8356 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8357 | aarch64_set_reg_s64 (cpu, rd, NO_SP, value); |
8358 | } | |
8359 | ||
8360 | /* 32 bit convert double to signed int truncate towards zero. */ | |
8361 | static void | |
8362 | fcvtszd32 (sim_cpu *cpu) | |
8363 | { | |
ef0d8ffc NC |
8364 | unsigned sn = INSTR (9, 5); |
8365 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8366 | /* TODO : check that this rounds toward zero. */ |
8367 | double d = aarch64_get_FP_double (cpu, sn); | |
8368 | int32_t value = (int32_t) d; | |
8369 | ||
8370 | RAISE_EXCEPTIONS (d, value, DOUBLE, INT); | |
8371 | ||
2cdad34c | 8372 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8373 | /* Avoid sign extension to 64 bit. */ |
8374 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (uint32_t) value); | |
8375 | } | |
8376 | ||
8377 | /* 64 bit convert double to signed int truncate towards zero. */ | |
8378 | static void | |
8379 | fcvtszd (sim_cpu *cpu) | |
8380 | { | |
ef0d8ffc NC |
8381 | unsigned sn = INSTR (9, 5); |
8382 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8383 | /* TODO : check that this rounds toward zero. */ |
8384 | double d = aarch64_get_FP_double (cpu, sn); | |
8385 | int64_t value; | |
8386 | ||
8387 | value = (int64_t) d; | |
8388 | ||
8389 | RAISE_EXCEPTIONS (d, value, DOUBLE, LONG); | |
8390 | ||
2cdad34c | 8391 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8392 | aarch64_set_reg_s64 (cpu, rd, NO_SP, value); |
8393 | } | |
8394 | ||
8395 | static void | |
8396 | do_fcvtzu (sim_cpu *cpu) | |
8397 | { | |
8398 | /* instr[31] = size: 32-bit (0), 64-bit (1) | |
8399 | instr[30,23] = 00111100 | |
8400 | instr[22] = type: single (0)/ double (1) | |
8401 | instr[21] = enable (0)/disable(1) precision | |
8402 | instr[20,16] = 11001 | |
8403 | instr[15,10] = precision | |
8404 | instr[9,5] = Rs | |
8405 | instr[4,0] = Rd. */ | |
8406 | ||
ef0d8ffc NC |
8407 | unsigned rs = INSTR (9, 5); |
8408 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8409 | |
8410 | NYI_assert (30, 23, 0x3C); | |
8411 | NYI_assert (20, 16, 0x19); | |
8412 | ||
ef0d8ffc | 8413 | if (INSTR (21, 21) != 1) |
2e8cf49e NC |
8414 | /* Convert to fixed point. */ |
8415 | HALT_NYI; | |
8416 | ||
2cdad34c | 8417 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 8418 | if (INSTR (31, 31)) |
2e8cf49e NC |
8419 | { |
8420 | /* Convert to unsigned 64-bit integer. */ | |
ef0d8ffc | 8421 | if (INSTR (22, 22)) |
2e8cf49e NC |
8422 | { |
8423 | double d = aarch64_get_FP_double (cpu, rs); | |
8424 | uint64_t value = (uint64_t) d; | |
8425 | ||
8426 | /* Do not raise an exception if we have reached ULONG_MAX. */ | |
ce224813 | 8427 | if (value != (1ULL << 63)) |
c0386d4d | 8428 | RAISE_EXCEPTIONS (d, value, DOUBLE, ULONG); |
2e8cf49e NC |
8429 | |
8430 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value); | |
8431 | } | |
8432 | else | |
8433 | { | |
8434 | float f = aarch64_get_FP_float (cpu, rs); | |
8435 | uint64_t value = (uint64_t) f; | |
8436 | ||
8437 | /* Do not raise an exception if we have reached ULONG_MAX. */ | |
ce224813 | 8438 | if (value != (1ULL << 63)) |
c0386d4d | 8439 | RAISE_EXCEPTIONS (f, value, FLOAT, ULONG); |
2e8cf49e NC |
8440 | |
8441 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value); | |
8442 | } | |
8443 | } | |
8444 | else | |
8445 | { | |
8446 | uint32_t value; | |
8447 | ||
8448 | /* Convert to unsigned 32-bit integer. */ | |
ef0d8ffc | 8449 | if (INSTR (22, 22)) |
2e8cf49e NC |
8450 | { |
8451 | double d = aarch64_get_FP_double (cpu, rs); | |
8452 | ||
8453 | value = (uint32_t) d; | |
8454 | /* Do not raise an exception if we have reached UINT_MAX. */ | |
8455 | if (value != (1UL << 31)) | |
c0386d4d | 8456 | RAISE_EXCEPTIONS (d, value, DOUBLE, UINT); |
2e8cf49e NC |
8457 | } |
8458 | else | |
8459 | { | |
8460 | float f = aarch64_get_FP_float (cpu, rs); | |
8461 | ||
8462 | value = (uint32_t) f; | |
8463 | /* Do not raise an exception if we have reached UINT_MAX. */ | |
8464 | if (value != (1UL << 31)) | |
c0386d4d | 8465 | RAISE_EXCEPTIONS (f, value, FLOAT, UINT); |
2e8cf49e NC |
8466 | } |
8467 | ||
8468 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value); | |
8469 | } | |
8470 | } | |
8471 | ||
8472 | static void | |
8473 | do_UCVTF (sim_cpu *cpu) | |
8474 | { | |
8475 | /* instr[31] = size: 32-bit (0), 64-bit (1) | |
8476 | instr[30,23] = 001 1110 0 | |
8477 | instr[22] = type: single (0)/ double (1) | |
8478 | instr[21] = enable (0)/disable(1) precision | |
8479 | instr[20,16] = 0 0011 | |
8480 | instr[15,10] = precision | |
8481 | instr[9,5] = Rs | |
8482 | instr[4,0] = Rd. */ | |
8483 | ||
ef0d8ffc NC |
8484 | unsigned rs = INSTR (9, 5); |
8485 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8486 | |
8487 | NYI_assert (30, 23, 0x3C); | |
8488 | NYI_assert (20, 16, 0x03); | |
8489 | ||
ef0d8ffc | 8490 | if (INSTR (21, 21) != 1) |
2e8cf49e NC |
8491 | HALT_NYI; |
8492 | ||
8493 | /* FIXME: Add exception raising. */ | |
2cdad34c | 8494 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 8495 | if (INSTR (31, 31)) |
2e8cf49e NC |
8496 | { |
8497 | uint64_t value = aarch64_get_reg_u64 (cpu, rs, NO_SP); | |
8498 | ||
ef0d8ffc | 8499 | if (INSTR (22, 22)) |
2e8cf49e NC |
8500 | aarch64_set_FP_double (cpu, rd, (double) value); |
8501 | else | |
8502 | aarch64_set_FP_float (cpu, rd, (float) value); | |
8503 | } | |
8504 | else | |
8505 | { | |
8506 | uint32_t value = aarch64_get_reg_u32 (cpu, rs, NO_SP); | |
8507 | ||
ef0d8ffc | 8508 | if (INSTR (22, 22)) |
2e8cf49e NC |
8509 | aarch64_set_FP_double (cpu, rd, (double) value); |
8510 | else | |
8511 | aarch64_set_FP_float (cpu, rd, (float) value); | |
8512 | } | |
8513 | } | |
8514 | ||
8515 | static void | |
8516 | float_vector_move (sim_cpu *cpu) | |
8517 | { | |
8518 | /* instr[31,17] == 100 1111 0101 0111 | |
8519 | instr[16] ==> direction 0=> to GR, 1=> from GR | |
8520 | instr[15,10] => ??? | |
8521 | instr[9,5] ==> source | |
8522 | instr[4,0] ==> dest. */ | |
8523 | ||
ef0d8ffc NC |
8524 | unsigned rn = INSTR (9, 5); |
8525 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8526 | |
8527 | NYI_assert (31, 17, 0x4F57); | |
8528 | ||
ef0d8ffc | 8529 | if (INSTR (15, 10) != 0) |
2e8cf49e NC |
8530 | HALT_UNALLOC; |
8531 | ||
2cdad34c | 8532 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 8533 | if (INSTR (16, 16)) |
2e8cf49e NC |
8534 | aarch64_set_vec_u64 (cpu, rd, 1, aarch64_get_reg_u64 (cpu, rn, NO_SP)); |
8535 | else | |
8536 | aarch64_set_reg_u64 (cpu, rd, NO_SP, aarch64_get_vec_u64 (cpu, rn, 1)); | |
8537 | } | |
8538 | ||
8539 | static void | |
8540 | dexSimpleFPIntegerConvert (sim_cpu *cpu) | |
8541 | { | |
8542 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
8543 | instr[30 = 0 | |
8544 | instr[29] = S : 0 ==> OK, 1 ==> UNALLOC | |
8545 | instr[28,25] = 1111 | |
8546 | instr[24] = 0 | |
8547 | instr[23,22] = type : 00 ==> single, 01 ==> double, 1x ==> UNALLOC | |
8548 | instr[21] = 1 | |
8549 | instr[20,19] = rmode | |
8550 | instr[18,16] = opcode | |
8551 | instr[15,10] = 10 0000 */ | |
8552 | ||
8553 | uint32_t rmode_opcode; | |
8554 | uint32_t size_type; | |
8555 | uint32_t type; | |
8556 | uint32_t size; | |
8557 | uint32_t S; | |
8558 | ||
ef0d8ffc | 8559 | if (INSTR (31, 17) == 0x4F57) |
2e8cf49e NC |
8560 | { |
8561 | float_vector_move (cpu); | |
8562 | return; | |
8563 | } | |
8564 | ||
ef0d8ffc NC |
8565 | size = INSTR (31, 31); |
8566 | S = INSTR (29, 29); | |
2e8cf49e NC |
8567 | if (S != 0) |
8568 | HALT_UNALLOC; | |
8569 | ||
ef0d8ffc | 8570 | type = INSTR (23, 22); |
2e8cf49e NC |
8571 | if (type > 1) |
8572 | HALT_UNALLOC; | |
8573 | ||
ef0d8ffc | 8574 | rmode_opcode = INSTR (20, 16); |
2e8cf49e NC |
8575 | size_type = (size << 1) | type; /* 0==32f, 1==32d, 2==64f, 3==64d. */ |
8576 | ||
8577 | switch (rmode_opcode) | |
8578 | { | |
8579 | case 2: /* SCVTF. */ | |
8580 | switch (size_type) | |
8581 | { | |
8582 | case 0: scvtf32 (cpu); return; | |
8583 | case 1: scvtd32 (cpu); return; | |
8584 | case 2: scvtf (cpu); return; | |
8585 | case 3: scvtd (cpu); return; | |
2e8cf49e NC |
8586 | } |
8587 | ||
8588 | case 6: /* FMOV GR, Vec. */ | |
8589 | switch (size_type) | |
8590 | { | |
8591 | case 0: gfmovs (cpu); return; | |
8592 | case 3: gfmovd (cpu); return; | |
8593 | default: HALT_UNALLOC; | |
8594 | } | |
8595 | ||
8596 | case 7: /* FMOV vec, GR. */ | |
8597 | switch (size_type) | |
8598 | { | |
8599 | case 0: fgmovs (cpu); return; | |
8600 | case 3: fgmovd (cpu); return; | |
8601 | default: HALT_UNALLOC; | |
8602 | } | |
8603 | ||
8604 | case 24: /* FCVTZS. */ | |
8605 | switch (size_type) | |
8606 | { | |
8607 | case 0: fcvtszs32 (cpu); return; | |
8608 | case 1: fcvtszd32 (cpu); return; | |
8609 | case 2: fcvtszs (cpu); return; | |
8610 | case 3: fcvtszd (cpu); return; | |
2e8cf49e NC |
8611 | } |
8612 | ||
8613 | case 25: do_fcvtzu (cpu); return; | |
8614 | case 3: do_UCVTF (cpu); return; | |
8615 | ||
8616 | case 0: /* FCVTNS. */ | |
8617 | case 1: /* FCVTNU. */ | |
8618 | case 4: /* FCVTAS. */ | |
8619 | case 5: /* FCVTAU. */ | |
8620 | case 8: /* FCVPTS. */ | |
8621 | case 9: /* FCVTPU. */ | |
8622 | case 16: /* FCVTMS. */ | |
8623 | case 17: /* FCVTMU. */ | |
8624 | default: | |
8625 | HALT_NYI; | |
8626 | } | |
8627 | } | |
8628 | ||
8629 | static void | |
8630 | set_flags_for_float_compare (sim_cpu *cpu, float fvalue1, float fvalue2) | |
8631 | { | |
8632 | uint32_t flags; | |
8633 | ||
87903eaf | 8634 | /* FIXME: Add exception raising. */ |
2e8cf49e NC |
8635 | if (isnan (fvalue1) || isnan (fvalue2)) |
8636 | flags = C|V; | |
87903eaf JW |
8637 | else if (isinf (fvalue1) && isinf (fvalue2)) |
8638 | { | |
8639 | /* Subtracting two infinities may give a NaN. We only need to compare | |
8640 | the signs, which we can get from isinf. */ | |
8641 | int result = isinf (fvalue1) - isinf (fvalue2); | |
8642 | ||
8643 | if (result == 0) | |
8644 | flags = Z|C; | |
8645 | else if (result < 0) | |
8646 | flags = N; | |
8647 | else /* (result > 0). */ | |
8648 | flags = C; | |
8649 | } | |
2e8cf49e NC |
8650 | else |
8651 | { | |
8652 | float result = fvalue1 - fvalue2; | |
8653 | ||
8654 | if (result == 0.0) | |
8655 | flags = Z|C; | |
8656 | else if (result < 0) | |
8657 | flags = N; | |
8658 | else /* (result > 0). */ | |
8659 | flags = C; | |
8660 | } | |
8661 | ||
8662 | aarch64_set_CPSR (cpu, flags); | |
8663 | } | |
8664 | ||
8665 | static void | |
8666 | fcmps (sim_cpu *cpu) | |
8667 | { | |
ef0d8ffc NC |
8668 | unsigned sm = INSTR (20, 16); |
8669 | unsigned sn = INSTR ( 9, 5); | |
2e8cf49e NC |
8670 | |
8671 | float fvalue1 = aarch64_get_FP_float (cpu, sn); | |
8672 | float fvalue2 = aarch64_get_FP_float (cpu, sm); | |
8673 | ||
2cdad34c | 8674 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8675 | set_flags_for_float_compare (cpu, fvalue1, fvalue2); |
8676 | } | |
8677 | ||
8678 | /* Float compare to zero -- Invalid Operation exception | |
8679 | only on signaling NaNs. */ | |
8680 | static void | |
8681 | fcmpzs (sim_cpu *cpu) | |
8682 | { | |
ef0d8ffc | 8683 | unsigned sn = INSTR ( 9, 5); |
2e8cf49e NC |
8684 | float fvalue1 = aarch64_get_FP_float (cpu, sn); |
8685 | ||
2cdad34c | 8686 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8687 | set_flags_for_float_compare (cpu, fvalue1, 0.0f); |
8688 | } | |
8689 | ||
8690 | /* Float compare -- Invalid Operation exception on all NaNs. */ | |
8691 | static void | |
8692 | fcmpes (sim_cpu *cpu) | |
8693 | { | |
ef0d8ffc NC |
8694 | unsigned sm = INSTR (20, 16); |
8695 | unsigned sn = INSTR ( 9, 5); | |
2e8cf49e NC |
8696 | |
8697 | float fvalue1 = aarch64_get_FP_float (cpu, sn); | |
8698 | float fvalue2 = aarch64_get_FP_float (cpu, sm); | |
8699 | ||
2cdad34c | 8700 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8701 | set_flags_for_float_compare (cpu, fvalue1, fvalue2); |
8702 | } | |
8703 | ||
8704 | /* Float compare to zero -- Invalid Operation exception on all NaNs. */ | |
8705 | static void | |
8706 | fcmpzes (sim_cpu *cpu) | |
8707 | { | |
ef0d8ffc | 8708 | unsigned sn = INSTR ( 9, 5); |
2e8cf49e NC |
8709 | float fvalue1 = aarch64_get_FP_float (cpu, sn); |
8710 | ||
2cdad34c | 8711 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8712 | set_flags_for_float_compare (cpu, fvalue1, 0.0f); |
8713 | } | |
8714 | ||
8715 | static void | |
8716 | set_flags_for_double_compare (sim_cpu *cpu, double dval1, double dval2) | |
8717 | { | |
8718 | uint32_t flags; | |
8719 | ||
87903eaf | 8720 | /* FIXME: Add exception raising. */ |
2e8cf49e NC |
8721 | if (isnan (dval1) || isnan (dval2)) |
8722 | flags = C|V; | |
87903eaf JW |
8723 | else if (isinf (dval1) && isinf (dval2)) |
8724 | { | |
8725 | /* Subtracting two infinities may give a NaN. We only need to compare | |
8726 | the signs, which we can get from isinf. */ | |
8727 | int result = isinf (dval1) - isinf (dval2); | |
8728 | ||
8729 | if (result == 0) | |
8730 | flags = Z|C; | |
8731 | else if (result < 0) | |
8732 | flags = N; | |
8733 | else /* (result > 0). */ | |
8734 | flags = C; | |
8735 | } | |
2e8cf49e NC |
8736 | else |
8737 | { | |
8738 | double result = dval1 - dval2; | |
8739 | ||
8740 | if (result == 0.0) | |
8741 | flags = Z|C; | |
8742 | else if (result < 0) | |
8743 | flags = N; | |
8744 | else /* (result > 0). */ | |
8745 | flags = C; | |
8746 | } | |
8747 | ||
8748 | aarch64_set_CPSR (cpu, flags); | |
8749 | } | |
8750 | ||
8751 | /* Double compare -- Invalid Operation exception only on signaling NaNs. */ | |
8752 | static void | |
8753 | fcmpd (sim_cpu *cpu) | |
8754 | { | |
ef0d8ffc NC |
8755 | unsigned sm = INSTR (20, 16); |
8756 | unsigned sn = INSTR ( 9, 5); | |
2e8cf49e NC |
8757 | |
8758 | double dvalue1 = aarch64_get_FP_double (cpu, sn); | |
8759 | double dvalue2 = aarch64_get_FP_double (cpu, sm); | |
8760 | ||
2cdad34c | 8761 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8762 | set_flags_for_double_compare (cpu, dvalue1, dvalue2); |
8763 | } | |
8764 | ||
8765 | /* Double compare to zero -- Invalid Operation exception | |
8766 | only on signaling NaNs. */ | |
8767 | static void | |
8768 | fcmpzd (sim_cpu *cpu) | |
8769 | { | |
ef0d8ffc | 8770 | unsigned sn = INSTR ( 9, 5); |
2e8cf49e NC |
8771 | double dvalue1 = aarch64_get_FP_double (cpu, sn); |
8772 | ||
2cdad34c | 8773 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8774 | set_flags_for_double_compare (cpu, dvalue1, 0.0); |
8775 | } | |
8776 | ||
8777 | /* Double compare -- Invalid Operation exception on all NaNs. */ | |
8778 | static void | |
8779 | fcmped (sim_cpu *cpu) | |
8780 | { | |
ef0d8ffc NC |
8781 | unsigned sm = INSTR (20, 16); |
8782 | unsigned sn = INSTR ( 9, 5); | |
2e8cf49e NC |
8783 | |
8784 | double dvalue1 = aarch64_get_FP_double (cpu, sn); | |
8785 | double dvalue2 = aarch64_get_FP_double (cpu, sm); | |
8786 | ||
2cdad34c | 8787 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8788 | set_flags_for_double_compare (cpu, dvalue1, dvalue2); |
8789 | } | |
8790 | ||
8791 | /* Double compare to zero -- Invalid Operation exception on all NaNs. */ | |
8792 | static void | |
8793 | fcmpzed (sim_cpu *cpu) | |
8794 | { | |
ef0d8ffc | 8795 | unsigned sn = INSTR ( 9, 5); |
2e8cf49e NC |
8796 | double dvalue1 = aarch64_get_FP_double (cpu, sn); |
8797 | ||
2cdad34c | 8798 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8799 | set_flags_for_double_compare (cpu, dvalue1, 0.0); |
8800 | } | |
8801 | ||
8802 | static void | |
8803 | dexSimpleFPCompare (sim_cpu *cpu) | |
8804 | { | |
8805 | /* assert instr[28,25] == 1111 | |
8806 | instr[30:24:21:13,10] = 0011000 | |
8807 | instr[31] = M : 0 ==> OK, 1 ==> UNALLOC | |
8808 | instr[29] ==> S : 0 ==> OK, 1 ==> UNALLOC | |
8809 | instr[23,22] ==> type : 0 ==> single, 01 ==> double, 1x ==> UNALLOC | |
8810 | instr[15,14] ==> op : 00 ==> OK, ow ==> UNALLOC | |
8811 | instr[4,0] ==> opcode2 : 00000 ==> FCMP, 10000 ==> FCMPE, | |
8812 | 01000 ==> FCMPZ, 11000 ==> FCMPEZ, | |
8813 | ow ==> UNALLOC */ | |
8814 | uint32_t dispatch; | |
7517e550 | 8815 | uint32_t M_S = (INSTR (31, 31) << 1) | INSTR (29, 29); |
ef0d8ffc NC |
8816 | uint32_t type = INSTR (23, 22); |
8817 | uint32_t op = INSTR (15, 14); | |
8818 | uint32_t op2_2_0 = INSTR (2, 0); | |
2e8cf49e NC |
8819 | |
8820 | if (op2_2_0 != 0) | |
8821 | HALT_UNALLOC; | |
8822 | ||
8823 | if (M_S != 0) | |
8824 | HALT_UNALLOC; | |
8825 | ||
8826 | if (type > 1) | |
8827 | HALT_UNALLOC; | |
8828 | ||
8829 | if (op != 0) | |
8830 | HALT_UNALLOC; | |
8831 | ||
8832 | /* dispatch on type and top 2 bits of opcode. */ | |
ef0d8ffc | 8833 | dispatch = (type << 2) | INSTR (4, 3); |
2e8cf49e NC |
8834 | |
8835 | switch (dispatch) | |
8836 | { | |
8837 | case 0: fcmps (cpu); return; | |
8838 | case 1: fcmpzs (cpu); return; | |
8839 | case 2: fcmpes (cpu); return; | |
8840 | case 3: fcmpzes (cpu); return; | |
8841 | case 4: fcmpd (cpu); return; | |
8842 | case 5: fcmpzd (cpu); return; | |
8843 | case 6: fcmped (cpu); return; | |
8844 | case 7: fcmpzed (cpu); return; | |
2e8cf49e NC |
8845 | } |
8846 | } | |
8847 | ||
8848 | static void | |
8849 | do_scalar_FADDP (sim_cpu *cpu) | |
8850 | { | |
7517e550 | 8851 | /* instr [31,23] = 0111 1110 0 |
2e8cf49e | 8852 | instr [22] = single(0)/double(1) |
7517e550 | 8853 | instr [21,10] = 11 0000 1101 10 |
2e8cf49e NC |
8854 | instr [9,5] = Fn |
8855 | instr [4,0] = Fd. */ | |
8856 | ||
ef0d8ffc NC |
8857 | unsigned Fn = INSTR (9, 5); |
8858 | unsigned Fd = INSTR (4, 0); | |
2e8cf49e NC |
8859 | |
8860 | NYI_assert (31, 23, 0x0FC); | |
8861 | NYI_assert (21, 10, 0xC36); | |
8862 | ||
2cdad34c | 8863 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 8864 | if (INSTR (22, 22)) |
2e8cf49e NC |
8865 | { |
8866 | double val1 = aarch64_get_vec_double (cpu, Fn, 0); | |
8867 | double val2 = aarch64_get_vec_double (cpu, Fn, 1); | |
8868 | ||
8869 | aarch64_set_FP_double (cpu, Fd, val1 + val2); | |
8870 | } | |
8871 | else | |
8872 | { | |
8873 | float val1 = aarch64_get_vec_float (cpu, Fn, 0); | |
8874 | float val2 = aarch64_get_vec_float (cpu, Fn, 1); | |
8875 | ||
8876 | aarch64_set_FP_float (cpu, Fd, val1 + val2); | |
8877 | } | |
8878 | } | |
8879 | ||
8880 | /* Floating point absolute difference. */ | |
8881 | ||
8882 | static void | |
8883 | do_scalar_FABD (sim_cpu *cpu) | |
8884 | { | |
8885 | /* instr [31,23] = 0111 1110 1 | |
8886 | instr [22] = float(0)/double(1) | |
8887 | instr [21] = 1 | |
8888 | instr [20,16] = Rm | |
8889 | instr [15,10] = 1101 01 | |
8890 | instr [9, 5] = Rn | |
8891 | instr [4, 0] = Rd. */ | |
8892 | ||
ef0d8ffc NC |
8893 | unsigned rm = INSTR (20, 16); |
8894 | unsigned rn = INSTR (9, 5); | |
8895 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8896 | |
8897 | NYI_assert (31, 23, 0x0FD); | |
8898 | NYI_assert (21, 21, 1); | |
8899 | NYI_assert (15, 10, 0x35); | |
8900 | ||
2cdad34c | 8901 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 8902 | if (INSTR (22, 22)) |
2e8cf49e NC |
8903 | aarch64_set_FP_double (cpu, rd, |
8904 | fabs (aarch64_get_FP_double (cpu, rn) | |
8905 | - aarch64_get_FP_double (cpu, rm))); | |
8906 | else | |
8907 | aarch64_set_FP_float (cpu, rd, | |
8908 | fabsf (aarch64_get_FP_float (cpu, rn) | |
8909 | - aarch64_get_FP_float (cpu, rm))); | |
8910 | } | |
8911 | ||
8912 | static void | |
8913 | do_scalar_CMGT (sim_cpu *cpu) | |
8914 | { | |
8915 | /* instr [31,21] = 0101 1110 111 | |
8916 | instr [20,16] = Rm | |
8917 | instr [15,10] = 00 1101 | |
8918 | instr [9, 5] = Rn | |
8919 | instr [4, 0] = Rd. */ | |
8920 | ||
ef0d8ffc NC |
8921 | unsigned rm = INSTR (20, 16); |
8922 | unsigned rn = INSTR (9, 5); | |
8923 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8924 | |
8925 | NYI_assert (31, 21, 0x2F7); | |
8926 | NYI_assert (15, 10, 0x0D); | |
8927 | ||
2cdad34c | 8928 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8929 | aarch64_set_vec_u64 (cpu, rd, 0, |
8930 | aarch64_get_vec_u64 (cpu, rn, 0) > | |
8931 | aarch64_get_vec_u64 (cpu, rm, 0) ? -1L : 0L); | |
8932 | } | |
8933 | ||
8934 | static void | |
8935 | do_scalar_USHR (sim_cpu *cpu) | |
8936 | { | |
8937 | /* instr [31,23] = 0111 1111 0 | |
8938 | instr [22,16] = shift amount | |
8939 | instr [15,10] = 0000 01 | |
8940 | instr [9, 5] = Rn | |
8941 | instr [4, 0] = Rd. */ | |
8942 | ||
5ab6d79e NC |
8943 | unsigned amount = 128 - INSTR (22, 16); |
8944 | unsigned rn = INSTR (9, 5); | |
8945 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
8946 | |
8947 | NYI_assert (31, 23, 0x0FE); | |
8948 | NYI_assert (15, 10, 0x01); | |
8949 | ||
2cdad34c | 8950 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
8951 | aarch64_set_vec_u64 (cpu, rd, 0, |
8952 | aarch64_get_vec_u64 (cpu, rn, 0) >> amount); | |
8953 | } | |
8954 | ||
8955 | static void | |
5ab6d79e NC |
8956 | do_scalar_SSHL (sim_cpu *cpu) |
8957 | { | |
8958 | /* instr [31,21] = 0101 1110 111 | |
8959 | instr [20,16] = Rm | |
8960 | instr [15,10] = 0100 01 | |
8961 | instr [9, 5] = Rn | |
8962 | instr [4, 0] = Rd. */ | |
8963 | ||
8964 | unsigned rm = INSTR (20, 16); | |
8965 | unsigned rn = INSTR (9, 5); | |
8966 | unsigned rd = INSTR (4, 0); | |
8967 | signed int shift = aarch64_get_vec_s8 (cpu, rm, 0); | |
8968 | ||
8969 | NYI_assert (31, 21, 0x2F7); | |
8970 | NYI_assert (15, 10, 0x11); | |
8971 | ||
2cdad34c | 8972 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
8973 | if (shift >= 0) |
8974 | aarch64_set_vec_s64 (cpu, rd, 0, | |
8975 | aarch64_get_vec_s64 (cpu, rn, 0) << shift); | |
8976 | else | |
8977 | aarch64_set_vec_s64 (cpu, rd, 0, | |
ef0d8ffc | 8978 | aarch64_get_vec_s64 (cpu, rn, 0) >> - shift); |
5ab6d79e NC |
8979 | } |
8980 | ||
ae27d3fe JW |
8981 | /* Floating point scalar compare greater than or equal to 0. */ |
8982 | static void | |
8983 | do_scalar_FCMGE_zero (sim_cpu *cpu) | |
8984 | { | |
8985 | /* instr [31,23] = 0111 1110 1 | |
8986 | instr [22,22] = size | |
8987 | instr [21,16] = 1000 00 | |
8988 | instr [15,10] = 1100 10 | |
8989 | instr [9, 5] = Rn | |
8990 | instr [4, 0] = Rd. */ | |
8991 | ||
8992 | unsigned size = INSTR (22, 22); | |
8993 | unsigned rn = INSTR (9, 5); | |
8994 | unsigned rd = INSTR (4, 0); | |
8995 | ||
8996 | NYI_assert (31, 23, 0x0FD); | |
8997 | NYI_assert (21, 16, 0x20); | |
8998 | NYI_assert (15, 10, 0x32); | |
8999 | ||
9000 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
9001 | if (size) | |
9002 | aarch64_set_vec_u64 (cpu, rd, 0, | |
9003 | aarch64_get_vec_double (cpu, rn, 0) >= 0.0 ? -1 : 0); | |
9004 | else | |
9005 | aarch64_set_vec_u32 (cpu, rd, 0, | |
9006 | aarch64_get_vec_float (cpu, rn, 0) >= 0.0 ? -1 : 0); | |
9007 | } | |
9008 | ||
9009 | /* Floating point scalar compare less than or equal to 0. */ | |
9010 | static void | |
9011 | do_scalar_FCMLE_zero (sim_cpu *cpu) | |
9012 | { | |
9013 | /* instr [31,23] = 0111 1110 1 | |
9014 | instr [22,22] = size | |
9015 | instr [21,16] = 1000 00 | |
9016 | instr [15,10] = 1101 10 | |
9017 | instr [9, 5] = Rn | |
9018 | instr [4, 0] = Rd. */ | |
9019 | ||
9020 | unsigned size = INSTR (22, 22); | |
9021 | unsigned rn = INSTR (9, 5); | |
9022 | unsigned rd = INSTR (4, 0); | |
9023 | ||
9024 | NYI_assert (31, 23, 0x0FD); | |
9025 | NYI_assert (21, 16, 0x20); | |
9026 | NYI_assert (15, 10, 0x36); | |
9027 | ||
9028 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
9029 | if (size) | |
9030 | aarch64_set_vec_u64 (cpu, rd, 0, | |
9031 | aarch64_get_vec_double (cpu, rn, 0) <= 0.0 ? -1 : 0); | |
9032 | else | |
9033 | aarch64_set_vec_u32 (cpu, rd, 0, | |
9034 | aarch64_get_vec_float (cpu, rn, 0) <= 0.0 ? -1 : 0); | |
9035 | } | |
9036 | ||
9037 | /* Floating point scalar compare greater than 0. */ | |
9038 | static void | |
9039 | do_scalar_FCMGT_zero (sim_cpu *cpu) | |
9040 | { | |
9041 | /* instr [31,23] = 0101 1110 1 | |
9042 | instr [22,22] = size | |
9043 | instr [21,16] = 1000 00 | |
9044 | instr [15,10] = 1100 10 | |
9045 | instr [9, 5] = Rn | |
9046 | instr [4, 0] = Rd. */ | |
9047 | ||
9048 | unsigned size = INSTR (22, 22); | |
9049 | unsigned rn = INSTR (9, 5); | |
9050 | unsigned rd = INSTR (4, 0); | |
9051 | ||
9052 | NYI_assert (31, 23, 0x0BD); | |
9053 | NYI_assert (21, 16, 0x20); | |
9054 | NYI_assert (15, 10, 0x32); | |
9055 | ||
9056 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
9057 | if (size) | |
9058 | aarch64_set_vec_u64 (cpu, rd, 0, | |
9059 | aarch64_get_vec_double (cpu, rn, 0) > 0.0 ? -1 : 0); | |
9060 | else | |
9061 | aarch64_set_vec_u32 (cpu, rd, 0, | |
9062 | aarch64_get_vec_float (cpu, rn, 0) > 0.0 ? -1 : 0); | |
9063 | } | |
9064 | ||
9065 | /* Floating point scalar compare equal to 0. */ | |
9066 | static void | |
9067 | do_scalar_FCMEQ_zero (sim_cpu *cpu) | |
9068 | { | |
9069 | /* instr [31,23] = 0101 1110 1 | |
9070 | instr [22,22] = size | |
9071 | instr [21,16] = 1000 00 | |
9072 | instr [15,10] = 1101 10 | |
9073 | instr [9, 5] = Rn | |
9074 | instr [4, 0] = Rd. */ | |
9075 | ||
9076 | unsigned size = INSTR (22, 22); | |
9077 | unsigned rn = INSTR (9, 5); | |
9078 | unsigned rd = INSTR (4, 0); | |
9079 | ||
9080 | NYI_assert (31, 23, 0x0BD); | |
9081 | NYI_assert (21, 16, 0x20); | |
9082 | NYI_assert (15, 10, 0x36); | |
9083 | ||
9084 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
9085 | if (size) | |
9086 | aarch64_set_vec_u64 (cpu, rd, 0, | |
9087 | aarch64_get_vec_double (cpu, rn, 0) == 0.0 ? -1 : 0); | |
9088 | else | |
9089 | aarch64_set_vec_u32 (cpu, rd, 0, | |
9090 | aarch64_get_vec_float (cpu, rn, 0) == 0.0 ? -1 : 0); | |
9091 | } | |
9092 | ||
9093 | /* Floating point scalar compare less than 0. */ | |
9094 | static void | |
9095 | do_scalar_FCMLT_zero (sim_cpu *cpu) | |
9096 | { | |
9097 | /* instr [31,23] = 0101 1110 1 | |
9098 | instr [22,22] = size | |
9099 | instr [21,16] = 1000 00 | |
9100 | instr [15,10] = 1110 10 | |
9101 | instr [9, 5] = Rn | |
9102 | instr [4, 0] = Rd. */ | |
9103 | ||
9104 | unsigned size = INSTR (22, 22); | |
9105 | unsigned rn = INSTR (9, 5); | |
9106 | unsigned rd = INSTR (4, 0); | |
9107 | ||
9108 | NYI_assert (31, 23, 0x0BD); | |
9109 | NYI_assert (21, 16, 0x20); | |
9110 | NYI_assert (15, 10, 0x3A); | |
9111 | ||
9112 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
9113 | if (size) | |
9114 | aarch64_set_vec_u64 (cpu, rd, 0, | |
9115 | aarch64_get_vec_double (cpu, rn, 0) < 0.0 ? -1 : 0); | |
9116 | else | |
9117 | aarch64_set_vec_u32 (cpu, rd, 0, | |
9118 | aarch64_get_vec_float (cpu, rn, 0) < 0.0 ? -1 : 0); | |
9119 | } | |
9120 | ||
5ab6d79e NC |
9121 | static void |
9122 | do_scalar_shift (sim_cpu *cpu) | |
2e8cf49e | 9123 | { |
5ab6d79e | 9124 | /* instr [31,23] = 0101 1111 0 |
2e8cf49e | 9125 | instr [22,16] = shift amount |
5ab6d79e NC |
9126 | instr [15,10] = 0101 01 [SHL] |
9127 | instr [15,10] = 0000 01 [SSHR] | |
2e8cf49e NC |
9128 | instr [9, 5] = Rn |
9129 | instr [4, 0] = Rd. */ | |
9130 | ||
5ab6d79e NC |
9131 | unsigned rn = INSTR (9, 5); |
9132 | unsigned rd = INSTR (4, 0); | |
9133 | unsigned amount; | |
2e8cf49e NC |
9134 | |
9135 | NYI_assert (31, 23, 0x0BE); | |
2e8cf49e | 9136 | |
5ab6d79e | 9137 | if (INSTR (22, 22) == 0) |
2e8cf49e NC |
9138 | HALT_UNALLOC; |
9139 | ||
2cdad34c | 9140 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
9141 | switch (INSTR (15, 10)) |
9142 | { | |
9143 | case 0x01: /* SSHR */ | |
9144 | amount = 128 - INSTR (22, 16); | |
9145 | aarch64_set_vec_s64 (cpu, rd, 0, | |
9146 | aarch64_get_vec_s64 (cpu, rn, 0) >> amount); | |
9147 | return; | |
9148 | case 0x15: /* SHL */ | |
9149 | amount = INSTR (22, 16) - 64; | |
9150 | aarch64_set_vec_u64 (cpu, rd, 0, | |
9151 | aarch64_get_vec_u64 (cpu, rn, 0) << amount); | |
9152 | return; | |
9153 | default: | |
9154 | HALT_NYI; | |
9155 | } | |
2e8cf49e NC |
9156 | } |
9157 | ||
9158 | /* FCMEQ FCMGT FCMGE. */ | |
9159 | static void | |
9160 | do_scalar_FCM (sim_cpu *cpu) | |
9161 | { | |
9162 | /* instr [31,30] = 01 | |
9163 | instr [29] = U | |
9164 | instr [28,24] = 1 1110 | |
9165 | instr [23] = E | |
9166 | instr [22] = size | |
9167 | instr [21] = 1 | |
9168 | instr [20,16] = Rm | |
9169 | instr [15,12] = 1110 | |
9170 | instr [11] = AC | |
9171 | instr [10] = 1 | |
9172 | instr [9, 5] = Rn | |
9173 | instr [4, 0] = Rd. */ | |
9174 | ||
ef0d8ffc NC |
9175 | unsigned rm = INSTR (20, 16); |
9176 | unsigned rn = INSTR (9, 5); | |
9177 | unsigned rd = INSTR (4, 0); | |
7517e550 | 9178 | unsigned EUac = (INSTR (23, 23) << 2) | (INSTR (29, 29) << 1) | INSTR (11, 11); |
2e8cf49e NC |
9179 | unsigned result; |
9180 | float val1; | |
9181 | float val2; | |
9182 | ||
9183 | NYI_assert (31, 30, 1); | |
9184 | NYI_assert (28, 24, 0x1E); | |
9185 | NYI_assert (21, 21, 1); | |
9186 | NYI_assert (15, 12, 0xE); | |
9187 | NYI_assert (10, 10, 1); | |
9188 | ||
2cdad34c | 9189 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 9190 | if (INSTR (22, 22)) |
2e8cf49e NC |
9191 | { |
9192 | double val1 = aarch64_get_FP_double (cpu, rn); | |
9193 | double val2 = aarch64_get_FP_double (cpu, rm); | |
9194 | ||
9195 | switch (EUac) | |
9196 | { | |
9197 | case 0: /* 000 */ | |
9198 | result = val1 == val2; | |
9199 | break; | |
9200 | ||
9201 | case 3: /* 011 */ | |
9202 | val1 = fabs (val1); | |
9203 | val2 = fabs (val2); | |
9204 | /* Fall through. */ | |
9205 | case 2: /* 010 */ | |
9206 | result = val1 >= val2; | |
9207 | break; | |
9208 | ||
9209 | case 7: /* 111 */ | |
9210 | val1 = fabs (val1); | |
9211 | val2 = fabs (val2); | |
9212 | /* Fall through. */ | |
9213 | case 6: /* 110 */ | |
9214 | result = val1 > val2; | |
9215 | break; | |
9216 | ||
9217 | default: | |
9218 | HALT_UNALLOC; | |
9219 | } | |
9220 | ||
9221 | aarch64_set_vec_u32 (cpu, rd, 0, result ? -1 : 0); | |
9222 | return; | |
9223 | } | |
9224 | ||
9225 | val1 = aarch64_get_FP_float (cpu, rn); | |
9226 | val2 = aarch64_get_FP_float (cpu, rm); | |
9227 | ||
9228 | switch (EUac) | |
9229 | { | |
9230 | case 0: /* 000 */ | |
9231 | result = val1 == val2; | |
9232 | break; | |
9233 | ||
9234 | case 3: /* 011 */ | |
9235 | val1 = fabsf (val1); | |
9236 | val2 = fabsf (val2); | |
9237 | /* Fall through. */ | |
9238 | case 2: /* 010 */ | |
9239 | result = val1 >= val2; | |
9240 | break; | |
9241 | ||
9242 | case 7: /* 111 */ | |
9243 | val1 = fabsf (val1); | |
9244 | val2 = fabsf (val2); | |
9245 | /* Fall through. */ | |
9246 | case 6: /* 110 */ | |
9247 | result = val1 > val2; | |
9248 | break; | |
9249 | ||
9250 | default: | |
9251 | HALT_UNALLOC; | |
9252 | } | |
9253 | ||
9254 | aarch64_set_vec_u32 (cpu, rd, 0, result ? -1 : 0); | |
9255 | } | |
9256 | ||
9257 | /* An alias of DUP. */ | |
9258 | static void | |
9259 | do_scalar_MOV (sim_cpu *cpu) | |
9260 | { | |
9261 | /* instr [31,21] = 0101 1110 000 | |
9262 | instr [20,16] = imm5 | |
9263 | instr [15,10] = 0000 01 | |
9264 | instr [9, 5] = Rn | |
9265 | instr [4, 0] = Rd. */ | |
9266 | ||
ef0d8ffc NC |
9267 | unsigned rn = INSTR (9, 5); |
9268 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9269 | unsigned index; |
9270 | ||
9271 | NYI_assert (31, 21, 0x2F0); | |
9272 | NYI_assert (15, 10, 0x01); | |
9273 | ||
2cdad34c | 9274 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 9275 | if (INSTR (16, 16)) |
2e8cf49e NC |
9276 | { |
9277 | /* 8-bit. */ | |
ef0d8ffc | 9278 | index = INSTR (20, 17); |
2e8cf49e NC |
9279 | aarch64_set_vec_u8 |
9280 | (cpu, rd, 0, aarch64_get_vec_u8 (cpu, rn, index)); | |
9281 | } | |
ef0d8ffc | 9282 | else if (INSTR (17, 17)) |
2e8cf49e NC |
9283 | { |
9284 | /* 16-bit. */ | |
ef0d8ffc | 9285 | index = INSTR (20, 18); |
2e8cf49e NC |
9286 | aarch64_set_vec_u16 |
9287 | (cpu, rd, 0, aarch64_get_vec_u16 (cpu, rn, index)); | |
9288 | } | |
ef0d8ffc | 9289 | else if (INSTR (18, 18)) |
2e8cf49e NC |
9290 | { |
9291 | /* 32-bit. */ | |
ef0d8ffc | 9292 | index = INSTR (20, 19); |
2e8cf49e NC |
9293 | aarch64_set_vec_u32 |
9294 | (cpu, rd, 0, aarch64_get_vec_u32 (cpu, rn, index)); | |
9295 | } | |
ef0d8ffc | 9296 | else if (INSTR (19, 19)) |
2e8cf49e NC |
9297 | { |
9298 | /* 64-bit. */ | |
ef0d8ffc | 9299 | index = INSTR (20, 20); |
2e8cf49e NC |
9300 | aarch64_set_vec_u64 |
9301 | (cpu, rd, 0, aarch64_get_vec_u64 (cpu, rn, index)); | |
9302 | } | |
9303 | else | |
9304 | HALT_UNALLOC; | |
9305 | } | |
9306 | ||
e101a78b NC |
9307 | static void |
9308 | do_scalar_NEG (sim_cpu *cpu) | |
9309 | { | |
5ab6d79e | 9310 | /* instr [31,10] = 0111 1110 1110 0000 1011 10 |
e101a78b NC |
9311 | instr [9, 5] = Rn |
9312 | instr [4, 0] = Rd. */ | |
9313 | ||
ef0d8ffc NC |
9314 | unsigned rn = INSTR (9, 5); |
9315 | unsigned rd = INSTR (4, 0); | |
e101a78b | 9316 | |
5ab6d79e | 9317 | NYI_assert (31, 10, 0x1FB82E); |
e101a78b | 9318 | |
2cdad34c | 9319 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
e101a78b NC |
9320 | aarch64_set_vec_u64 (cpu, rd, 0, - aarch64_get_vec_u64 (cpu, rn, 0)); |
9321 | } | |
9322 | ||
5ab6d79e NC |
9323 | static void |
9324 | do_scalar_USHL (sim_cpu *cpu) | |
9325 | { | |
9326 | /* instr [31,21] = 0111 1110 111 | |
9327 | instr [20,16] = Rm | |
9328 | instr [15,10] = 0100 01 | |
9329 | instr [9, 5] = Rn | |
9330 | instr [4, 0] = Rd. */ | |
9331 | ||
9332 | unsigned rm = INSTR (20, 16); | |
9333 | unsigned rn = INSTR (9, 5); | |
9334 | unsigned rd = INSTR (4, 0); | |
9335 | signed int shift = aarch64_get_vec_s8 (cpu, rm, 0); | |
9336 | ||
9337 | NYI_assert (31, 21, 0x3F7); | |
9338 | NYI_assert (15, 10, 0x11); | |
9339 | ||
2cdad34c | 9340 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
9341 | if (shift >= 0) |
9342 | aarch64_set_vec_u64 (cpu, rd, 0, aarch64_get_vec_u64 (cpu, rn, 0) << shift); | |
9343 | else | |
9344 | aarch64_set_vec_u64 (cpu, rd, 0, aarch64_get_vec_u64 (cpu, rn, 0) >> - shift); | |
9345 | } | |
9346 | ||
2e8cf49e NC |
9347 | static void |
9348 | do_double_add (sim_cpu *cpu) | |
9349 | { | |
5ab6d79e NC |
9350 | /* instr [31,21] = 0101 1110 111 |
9351 | instr [20,16] = Fn | |
9352 | instr [15,10] = 1000 01 | |
9353 | instr [9,5] = Fm | |
9354 | instr [4,0] = Fd. */ | |
2e8cf49e NC |
9355 | unsigned Fd; |
9356 | unsigned Fm; | |
9357 | unsigned Fn; | |
9358 | double val1; | |
9359 | double val2; | |
9360 | ||
5ab6d79e NC |
9361 | NYI_assert (31, 21, 0x2F7); |
9362 | NYI_assert (15, 10, 0x21); | |
9363 | ||
9364 | Fd = INSTR (4, 0); | |
9365 | Fm = INSTR (9, 5); | |
9366 | Fn = INSTR (20, 16); | |
9367 | ||
2cdad34c | 9368 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
9369 | val1 = aarch64_get_FP_double (cpu, Fm); |
9370 | val2 = aarch64_get_FP_double (cpu, Fn); | |
9371 | ||
9372 | aarch64_set_FP_double (cpu, Fd, val1 + val2); | |
9373 | } | |
9374 | ||
7517e550 NC |
9375 | static void |
9376 | do_scalar_UCVTF (sim_cpu *cpu) | |
9377 | { | |
9378 | /* instr [31,23] = 0111 1110 0 | |
9379 | instr [22] = single(0)/double(1) | |
9380 | instr [21,10] = 10 0001 1101 10 | |
9381 | instr [9,5] = rn | |
9382 | instr [4,0] = rd. */ | |
9383 | ||
9384 | unsigned rn = INSTR (9, 5); | |
9385 | unsigned rd = INSTR (4, 0); | |
9386 | ||
9387 | NYI_assert (31, 23, 0x0FC); | |
9388 | NYI_assert (21, 10, 0x876); | |
9389 | ||
2cdad34c | 9390 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
7517e550 NC |
9391 | if (INSTR (22, 22)) |
9392 | { | |
9393 | uint64_t val = aarch64_get_vec_u64 (cpu, rn, 0); | |
9394 | ||
9395 | aarch64_set_vec_double (cpu, rd, 0, (double) val); | |
9396 | } | |
9397 | else | |
9398 | { | |
9399 | uint32_t val = aarch64_get_vec_u32 (cpu, rn, 0); | |
9400 | ||
9401 | aarch64_set_vec_float (cpu, rd, 0, (float) val); | |
9402 | } | |
9403 | } | |
9404 | ||
5ab6d79e NC |
9405 | static void |
9406 | do_scalar_vec (sim_cpu *cpu) | |
9407 | { | |
9408 | /* instr [30] = 1. */ | |
9409 | /* instr [28,25] = 1111. */ | |
ef0d8ffc | 9410 | switch (INSTR (31, 23)) |
2e8cf49e NC |
9411 | { |
9412 | case 0xBC: | |
ef0d8ffc | 9413 | switch (INSTR (15, 10)) |
2e8cf49e NC |
9414 | { |
9415 | case 0x01: do_scalar_MOV (cpu); return; | |
9416 | case 0x39: do_scalar_FCM (cpu); return; | |
9417 | case 0x3B: do_scalar_FCM (cpu); return; | |
9418 | } | |
9419 | break; | |
9420 | ||
5ab6d79e | 9421 | case 0xBE: do_scalar_shift (cpu); return; |
2e8cf49e NC |
9422 | |
9423 | case 0xFC: | |
ef0d8ffc | 9424 | switch (INSTR (15, 10)) |
2e8cf49e | 9425 | { |
7517e550 NC |
9426 | case 0x36: |
9427 | switch (INSTR (21, 16)) | |
9428 | { | |
9429 | case 0x30: do_scalar_FADDP (cpu); return; | |
9430 | case 0x21: do_scalar_UCVTF (cpu); return; | |
9431 | } | |
9432 | HALT_NYI; | |
2e8cf49e NC |
9433 | case 0x39: do_scalar_FCM (cpu); return; |
9434 | case 0x3B: do_scalar_FCM (cpu); return; | |
9435 | } | |
9436 | break; | |
9437 | ||
9438 | case 0xFD: | |
ef0d8ffc | 9439 | switch (INSTR (15, 10)) |
2e8cf49e NC |
9440 | { |
9441 | case 0x0D: do_scalar_CMGT (cpu); return; | |
5ab6d79e NC |
9442 | case 0x11: do_scalar_USHL (cpu); return; |
9443 | case 0x2E: do_scalar_NEG (cpu); return; | |
ae27d3fe | 9444 | case 0x32: do_scalar_FCMGE_zero (cpu); return; |
2e8cf49e | 9445 | case 0x35: do_scalar_FABD (cpu); return; |
ae27d3fe | 9446 | case 0x36: do_scalar_FCMLE_zero (cpu); return; |
2e8cf49e NC |
9447 | case 0x39: do_scalar_FCM (cpu); return; |
9448 | case 0x3B: do_scalar_FCM (cpu); return; | |
9449 | default: | |
9450 | HALT_NYI; | |
9451 | } | |
9452 | ||
9453 | case 0xFE: do_scalar_USHR (cpu); return; | |
5ab6d79e NC |
9454 | |
9455 | case 0xBD: | |
9456 | switch (INSTR (15, 10)) | |
9457 | { | |
9458 | case 0x21: do_double_add (cpu); return; | |
9459 | case 0x11: do_scalar_SSHL (cpu); return; | |
ae27d3fe JW |
9460 | case 0x32: do_scalar_FCMGT_zero (cpu); return; |
9461 | case 0x36: do_scalar_FCMEQ_zero (cpu); return; | |
9462 | case 0x3A: do_scalar_FCMLT_zero (cpu); return; | |
5ab6d79e NC |
9463 | default: |
9464 | HALT_NYI; | |
9465 | } | |
ef0d8ffc | 9466 | |
2e8cf49e | 9467 | default: |
5ab6d79e | 9468 | HALT_NYI; |
2e8cf49e | 9469 | } |
2e8cf49e NC |
9470 | } |
9471 | ||
9472 | static void | |
9473 | dexAdvSIMD1 (sim_cpu *cpu) | |
9474 | { | |
9475 | /* instr [28,25] = 1 111. */ | |
9476 | ||
5ab6d79e | 9477 | /* We are currently only interested in the basic |
2e8cf49e | 9478 | scalar fp routines which all have bit 30 = 0. */ |
ef0d8ffc | 9479 | if (INSTR (30, 30)) |
5ab6d79e | 9480 | do_scalar_vec (cpu); |
2e8cf49e NC |
9481 | |
9482 | /* instr[24] is set for FP data processing 3-source and clear for | |
9483 | all other basic scalar fp instruction groups. */ | |
ef0d8ffc | 9484 | else if (INSTR (24, 24)) |
2e8cf49e NC |
9485 | dexSimpleFPDataProc3Source (cpu); |
9486 | ||
9487 | /* instr[21] is clear for floating <-> fixed conversions and set for | |
9488 | all other basic scalar fp instruction groups. */ | |
ef0d8ffc | 9489 | else if (!INSTR (21, 21)) |
2e8cf49e NC |
9490 | dexSimpleFPFixedConvert (cpu); |
9491 | ||
9492 | /* instr[11,10] : 01 ==> cond compare, 10 ==> Data Proc 2 Source | |
9493 | 11 ==> cond select, 00 ==> other. */ | |
9494 | else | |
ef0d8ffc | 9495 | switch (INSTR (11, 10)) |
2e8cf49e NC |
9496 | { |
9497 | case 1: dexSimpleFPCondCompare (cpu); return; | |
9498 | case 2: dexSimpleFPDataProc2Source (cpu); return; | |
9499 | case 3: dexSimpleFPCondSelect (cpu); return; | |
9500 | ||
9501 | default: | |
9502 | /* Now an ordered cascade of tests. | |
ef0d8ffc NC |
9503 | FP immediate has instr [12] == 1. |
9504 | FP compare has instr [13] == 1. | |
9505 | FP Data Proc 1 Source has instr [14] == 1. | |
9506 | FP floating <--> integer conversions has instr [15] == 0. */ | |
9507 | if (INSTR (12, 12)) | |
2e8cf49e NC |
9508 | dexSimpleFPImmediate (cpu); |
9509 | ||
ef0d8ffc | 9510 | else if (INSTR (13, 13)) |
2e8cf49e NC |
9511 | dexSimpleFPCompare (cpu); |
9512 | ||
ef0d8ffc | 9513 | else if (INSTR (14, 14)) |
2e8cf49e NC |
9514 | dexSimpleFPDataProc1Source (cpu); |
9515 | ||
ef0d8ffc | 9516 | else if (!INSTR (15, 15)) |
2e8cf49e NC |
9517 | dexSimpleFPIntegerConvert (cpu); |
9518 | ||
9519 | else | |
9520 | /* If we get here then instr[15] == 1 which means UNALLOC. */ | |
9521 | HALT_UNALLOC; | |
9522 | } | |
9523 | } | |
9524 | ||
9525 | /* PC relative addressing. */ | |
9526 | ||
9527 | static void | |
9528 | pcadr (sim_cpu *cpu) | |
9529 | { | |
9530 | /* instr[31] = op : 0 ==> ADR, 1 ==> ADRP | |
9531 | instr[30,29] = immlo | |
9532 | instr[23,5] = immhi. */ | |
9533 | uint64_t address; | |
ef0d8ffc NC |
9534 | unsigned rd = INSTR (4, 0); |
9535 | uint32_t isPage = INSTR (31, 31); | |
2e8cf49e NC |
9536 | union { int64_t u64; uint64_t s64; } imm; |
9537 | uint64_t offset; | |
9538 | ||
9539 | imm.s64 = simm64 (aarch64_get_instr (cpu), 23, 5); | |
9540 | offset = imm.u64; | |
ef0d8ffc | 9541 | offset = (offset << 2) | INSTR (30, 29); |
2e8cf49e NC |
9542 | |
9543 | address = aarch64_get_PC (cpu); | |
9544 | ||
9545 | if (isPage) | |
9546 | { | |
9547 | offset <<= 12; | |
9548 | address &= ~0xfff; | |
9549 | } | |
9550 | ||
2cdad34c | 9551 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9552 | aarch64_set_reg_u64 (cpu, rd, NO_SP, address + offset); |
9553 | } | |
9554 | ||
9555 | /* Specific decode and execute for group Data Processing Immediate. */ | |
9556 | ||
9557 | static void | |
9558 | dexPCRelAddressing (sim_cpu *cpu) | |
9559 | { | |
9560 | /* assert instr[28,24] = 10000. */ | |
9561 | pcadr (cpu); | |
9562 | } | |
9563 | ||
9564 | /* Immediate logical. | |
9565 | The bimm32/64 argument is constructed by replicating a 2, 4, 8, | |
9566 | 16, 32 or 64 bit sequence pulled out at decode and possibly | |
9567 | inverting it.. | |
9568 | ||
9569 | N.B. the output register (dest) can normally be Xn or SP | |
9570 | the exception occurs for flag setting instructions which may | |
9571 | only use Xn for the output (dest). The input register can | |
9572 | never be SP. */ | |
9573 | ||
9574 | /* 32 bit and immediate. */ | |
9575 | static void | |
9576 | and32 (sim_cpu *cpu, uint32_t bimm) | |
9577 | { | |
ef0d8ffc NC |
9578 | unsigned rn = INSTR (9, 5); |
9579 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9580 | |
2cdad34c | 9581 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9582 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
9583 | aarch64_get_reg_u32 (cpu, rn, NO_SP) & bimm); | |
9584 | } | |
9585 | ||
9586 | /* 64 bit and immediate. */ | |
9587 | static void | |
9588 | and64 (sim_cpu *cpu, uint64_t bimm) | |
9589 | { | |
ef0d8ffc NC |
9590 | unsigned rn = INSTR (9, 5); |
9591 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9592 | |
2cdad34c | 9593 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9594 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
9595 | aarch64_get_reg_u64 (cpu, rn, NO_SP) & bimm); | |
9596 | } | |
9597 | ||
9598 | /* 32 bit and immediate set flags. */ | |
9599 | static void | |
9600 | ands32 (sim_cpu *cpu, uint32_t bimm) | |
9601 | { | |
ef0d8ffc NC |
9602 | unsigned rn = INSTR (9, 5); |
9603 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9604 | |
9605 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
9606 | uint32_t value2 = bimm; | |
9607 | ||
2cdad34c | 9608 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9609 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 & value2); |
9610 | set_flags_for_binop32 (cpu, value1 & value2); | |
9611 | } | |
9612 | ||
9613 | /* 64 bit and immediate set flags. */ | |
9614 | static void | |
9615 | ands64 (sim_cpu *cpu, uint64_t bimm) | |
9616 | { | |
ef0d8ffc NC |
9617 | unsigned rn = INSTR (9, 5); |
9618 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9619 | |
9620 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
9621 | uint64_t value2 = bimm; | |
9622 | ||
2cdad34c | 9623 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9624 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 & value2); |
9625 | set_flags_for_binop64 (cpu, value1 & value2); | |
9626 | } | |
9627 | ||
9628 | /* 32 bit exclusive or immediate. */ | |
9629 | static void | |
9630 | eor32 (sim_cpu *cpu, uint32_t bimm) | |
9631 | { | |
ef0d8ffc NC |
9632 | unsigned rn = INSTR (9, 5); |
9633 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9634 | |
2cdad34c | 9635 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9636 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
9637 | aarch64_get_reg_u32 (cpu, rn, NO_SP) ^ bimm); | |
9638 | } | |
9639 | ||
9640 | /* 64 bit exclusive or immediate. */ | |
9641 | static void | |
9642 | eor64 (sim_cpu *cpu, uint64_t bimm) | |
9643 | { | |
ef0d8ffc NC |
9644 | unsigned rn = INSTR (9, 5); |
9645 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9646 | |
2cdad34c | 9647 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9648 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
9649 | aarch64_get_reg_u64 (cpu, rn, NO_SP) ^ bimm); | |
9650 | } | |
9651 | ||
9652 | /* 32 bit or immediate. */ | |
9653 | static void | |
9654 | orr32 (sim_cpu *cpu, uint32_t bimm) | |
9655 | { | |
ef0d8ffc NC |
9656 | unsigned rn = INSTR (9, 5); |
9657 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9658 | |
2cdad34c | 9659 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9660 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
9661 | aarch64_get_reg_u32 (cpu, rn, NO_SP) | bimm); | |
9662 | } | |
9663 | ||
9664 | /* 64 bit or immediate. */ | |
9665 | static void | |
9666 | orr64 (sim_cpu *cpu, uint64_t bimm) | |
9667 | { | |
ef0d8ffc NC |
9668 | unsigned rn = INSTR (9, 5); |
9669 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9670 | |
2cdad34c | 9671 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9672 | aarch64_set_reg_u64 (cpu, rd, SP_OK, |
9673 | aarch64_get_reg_u64 (cpu, rn, NO_SP) | bimm); | |
9674 | } | |
9675 | ||
9676 | /* Logical shifted register. | |
9677 | These allow an optional LSL, ASR, LSR or ROR to the second source | |
9678 | register with a count up to the register bit count. | |
9679 | N.B register args may not be SP. */ | |
9680 | ||
9681 | /* 32 bit AND shifted register. */ | |
9682 | static void | |
9683 | and32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9684 | { | |
ef0d8ffc NC |
9685 | unsigned rm = INSTR (20, 16); |
9686 | unsigned rn = INSTR (9, 5); | |
9687 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9688 | |
2cdad34c | 9689 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9690 | aarch64_set_reg_u64 |
9691 | (cpu, rd, NO_SP, aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
9692 | & shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), shift, count)); | |
9693 | } | |
9694 | ||
9695 | /* 64 bit AND shifted register. */ | |
9696 | static void | |
9697 | and64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9698 | { | |
ef0d8ffc NC |
9699 | unsigned rm = INSTR (20, 16); |
9700 | unsigned rn = INSTR (9, 5); | |
9701 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9702 | |
2cdad34c | 9703 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9704 | aarch64_set_reg_u64 |
9705 | (cpu, rd, NO_SP, aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
9706 | & shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), shift, count)); | |
9707 | } | |
9708 | ||
9709 | /* 32 bit AND shifted register setting flags. */ | |
9710 | static void | |
9711 | ands32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9712 | { | |
ef0d8ffc NC |
9713 | unsigned rm = INSTR (20, 16); |
9714 | unsigned rn = INSTR (9, 5); | |
9715 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9716 | |
9717 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
9718 | uint32_t value2 = shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
9719 | shift, count); | |
9720 | ||
2cdad34c | 9721 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9722 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 & value2); |
9723 | set_flags_for_binop32 (cpu, value1 & value2); | |
9724 | } | |
9725 | ||
9726 | /* 64 bit AND shifted register setting flags. */ | |
9727 | static void | |
9728 | ands64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9729 | { | |
ef0d8ffc NC |
9730 | unsigned rm = INSTR (20, 16); |
9731 | unsigned rn = INSTR (9, 5); | |
9732 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9733 | |
9734 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
9735 | uint64_t value2 = shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), | |
9736 | shift, count); | |
9737 | ||
2cdad34c | 9738 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9739 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 & value2); |
9740 | set_flags_for_binop64 (cpu, value1 & value2); | |
9741 | } | |
9742 | ||
9743 | /* 32 bit BIC shifted register. */ | |
9744 | static void | |
9745 | bic32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9746 | { | |
ef0d8ffc NC |
9747 | unsigned rm = INSTR (20, 16); |
9748 | unsigned rn = INSTR (9, 5); | |
9749 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9750 | |
2cdad34c | 9751 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9752 | aarch64_set_reg_u64 |
9753 | (cpu, rd, NO_SP, aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
9754 | & ~ shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), shift, count)); | |
9755 | } | |
9756 | ||
9757 | /* 64 bit BIC shifted register. */ | |
9758 | static void | |
9759 | bic64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9760 | { | |
ef0d8ffc NC |
9761 | unsigned rm = INSTR (20, 16); |
9762 | unsigned rn = INSTR (9, 5); | |
9763 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9764 | |
2cdad34c | 9765 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9766 | aarch64_set_reg_u64 |
9767 | (cpu, rd, NO_SP, aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
9768 | & ~ shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), shift, count)); | |
9769 | } | |
9770 | ||
9771 | /* 32 bit BIC shifted register setting flags. */ | |
9772 | static void | |
9773 | bics32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9774 | { | |
ef0d8ffc NC |
9775 | unsigned rm = INSTR (20, 16); |
9776 | unsigned rn = INSTR (9, 5); | |
9777 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9778 | |
9779 | uint32_t value1 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
9780 | uint32_t value2 = ~ shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
9781 | shift, count); | |
9782 | ||
2cdad34c | 9783 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9784 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 & value2); |
9785 | set_flags_for_binop32 (cpu, value1 & value2); | |
9786 | } | |
9787 | ||
9788 | /* 64 bit BIC shifted register setting flags. */ | |
9789 | static void | |
9790 | bics64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9791 | { | |
ef0d8ffc NC |
9792 | unsigned rm = INSTR (20, 16); |
9793 | unsigned rn = INSTR (9, 5); | |
9794 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
9795 | |
9796 | uint64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
9797 | uint64_t value2 = ~ shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), | |
9798 | shift, count); | |
9799 | ||
2cdad34c | 9800 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9801 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value1 & value2); |
9802 | set_flags_for_binop64 (cpu, value1 & value2); | |
9803 | } | |
9804 | ||
9805 | /* 32 bit EON shifted register. */ | |
9806 | static void | |
9807 | eon32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9808 | { | |
ef0d8ffc NC |
9809 | unsigned rm = INSTR (20, 16); |
9810 | unsigned rn = INSTR (9, 5); | |
9811 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9812 | |
2cdad34c | 9813 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9814 | aarch64_set_reg_u64 |
9815 | (cpu, rd, NO_SP, aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
9816 | ^ ~ shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), shift, count)); | |
9817 | } | |
9818 | ||
9819 | /* 64 bit EON shifted register. */ | |
9820 | static void | |
9821 | eon64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9822 | { | |
ef0d8ffc NC |
9823 | unsigned rm = INSTR (20, 16); |
9824 | unsigned rn = INSTR (9, 5); | |
9825 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9826 | |
2cdad34c | 9827 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9828 | aarch64_set_reg_u64 |
9829 | (cpu, rd, NO_SP, aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
9830 | ^ ~ shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), shift, count)); | |
9831 | } | |
9832 | ||
9833 | /* 32 bit EOR shifted register. */ | |
9834 | static void | |
9835 | eor32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9836 | { | |
ef0d8ffc NC |
9837 | unsigned rm = INSTR (20, 16); |
9838 | unsigned rn = INSTR (9, 5); | |
9839 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9840 | |
2cdad34c | 9841 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9842 | aarch64_set_reg_u64 |
9843 | (cpu, rd, NO_SP, aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
9844 | ^ shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), shift, count)); | |
9845 | } | |
9846 | ||
9847 | /* 64 bit EOR shifted register. */ | |
9848 | static void | |
9849 | eor64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9850 | { | |
ef0d8ffc NC |
9851 | unsigned rm = INSTR (20, 16); |
9852 | unsigned rn = INSTR (9, 5); | |
9853 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9854 | |
2cdad34c | 9855 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9856 | aarch64_set_reg_u64 |
9857 | (cpu, rd, NO_SP, aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
9858 | ^ shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), shift, count)); | |
9859 | } | |
9860 | ||
9861 | /* 32 bit ORR shifted register. */ | |
9862 | static void | |
9863 | orr32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9864 | { | |
ef0d8ffc NC |
9865 | unsigned rm = INSTR (20, 16); |
9866 | unsigned rn = INSTR (9, 5); | |
9867 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9868 | |
2cdad34c | 9869 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9870 | aarch64_set_reg_u64 |
9871 | (cpu, rd, NO_SP, aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
9872 | | shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), shift, count)); | |
9873 | } | |
9874 | ||
9875 | /* 64 bit ORR shifted register. */ | |
9876 | static void | |
9877 | orr64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9878 | { | |
ef0d8ffc NC |
9879 | unsigned rm = INSTR (20, 16); |
9880 | unsigned rn = INSTR (9, 5); | |
9881 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9882 | |
2cdad34c | 9883 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9884 | aarch64_set_reg_u64 |
9885 | (cpu, rd, NO_SP, aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
9886 | | shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), shift, count)); | |
9887 | } | |
9888 | ||
9889 | /* 32 bit ORN shifted register. */ | |
9890 | static void | |
9891 | orn32_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9892 | { | |
ef0d8ffc NC |
9893 | unsigned rm = INSTR (20, 16); |
9894 | unsigned rn = INSTR (9, 5); | |
9895 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9896 | |
2cdad34c | 9897 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9898 | aarch64_set_reg_u64 |
9899 | (cpu, rd, NO_SP, aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
9900 | | ~ shifted32 (aarch64_get_reg_u32 (cpu, rm, NO_SP), shift, count)); | |
9901 | } | |
9902 | ||
9903 | /* 64 bit ORN shifted register. */ | |
9904 | static void | |
9905 | orn64_shift (sim_cpu *cpu, Shift shift, uint32_t count) | |
9906 | { | |
ef0d8ffc NC |
9907 | unsigned rm = INSTR (20, 16); |
9908 | unsigned rn = INSTR (9, 5); | |
9909 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 9910 | |
2cdad34c | 9911 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9912 | aarch64_set_reg_u64 |
9913 | (cpu, rd, NO_SP, aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
9914 | | ~ shifted64 (aarch64_get_reg_u64 (cpu, rm, NO_SP), shift, count)); | |
9915 | } | |
9916 | ||
9917 | static void | |
9918 | dexLogicalImmediate (sim_cpu *cpu) | |
9919 | { | |
9920 | /* assert instr[28,23] = 1001000 | |
9921 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
9922 | instr[30,29] = op : 0 ==> AND, 1 ==> ORR, 2 ==> EOR, 3 ==> ANDS | |
9923 | instr[22] = N : used to construct immediate mask | |
9924 | instr[21,16] = immr | |
9925 | instr[15,10] = imms | |
9926 | instr[9,5] = Rn | |
9927 | instr[4,0] = Rd */ | |
9928 | ||
9929 | /* 32 bit operations must have N = 0 or else we have an UNALLOC. */ | |
ef0d8ffc NC |
9930 | uint32_t size = INSTR (31, 31); |
9931 | uint32_t N = INSTR (22, 22); | |
9932 | /* uint32_t immr = INSTR (21, 16);. */ | |
9933 | /* uint32_t imms = INSTR (15, 10);. */ | |
9934 | uint32_t index = INSTR (22, 10); | |
2e8cf49e | 9935 | uint64_t bimm64 = LITable [index]; |
ef0d8ffc | 9936 | uint32_t dispatch = INSTR (30, 29); |
2e8cf49e NC |
9937 | |
9938 | if (~size & N) | |
9939 | HALT_UNALLOC; | |
9940 | ||
9941 | if (!bimm64) | |
9942 | HALT_UNALLOC; | |
9943 | ||
9944 | if (size == 0) | |
9945 | { | |
9946 | uint32_t bimm = (uint32_t) bimm64; | |
9947 | ||
9948 | switch (dispatch) | |
9949 | { | |
9950 | case 0: and32 (cpu, bimm); return; | |
9951 | case 1: orr32 (cpu, bimm); return; | |
9952 | case 2: eor32 (cpu, bimm); return; | |
9953 | case 3: ands32 (cpu, bimm); return; | |
9954 | } | |
9955 | } | |
9956 | else | |
9957 | { | |
9958 | switch (dispatch) | |
9959 | { | |
9960 | case 0: and64 (cpu, bimm64); return; | |
9961 | case 1: orr64 (cpu, bimm64); return; | |
9962 | case 2: eor64 (cpu, bimm64); return; | |
9963 | case 3: ands64 (cpu, bimm64); return; | |
9964 | } | |
9965 | } | |
9966 | HALT_UNALLOC; | |
9967 | } | |
9968 | ||
9969 | /* Immediate move. | |
9970 | The uimm argument is a 16 bit value to be inserted into the | |
9971 | target register the pos argument locates the 16 bit word in the | |
9972 | dest register i.e. it is in {0, 1} for 32 bit and {0, 1, 2, | |
9973 | 3} for 64 bit. | |
9974 | N.B register arg may not be SP so it should be. | |
9975 | accessed using the setGZRegisterXXX accessors. */ | |
9976 | ||
9977 | /* 32 bit move 16 bit immediate zero remaining shorts. */ | |
9978 | static void | |
9979 | movz32 (sim_cpu *cpu, uint32_t val, uint32_t pos) | |
9980 | { | |
ef0d8ffc | 9981 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 9982 | |
2cdad34c | 9983 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9984 | aarch64_set_reg_u64 (cpu, rd, NO_SP, val << (pos * 16)); |
9985 | } | |
9986 | ||
9987 | /* 64 bit move 16 bit immediate zero remaining shorts. */ | |
9988 | static void | |
9989 | movz64 (sim_cpu *cpu, uint32_t val, uint32_t pos) | |
9990 | { | |
ef0d8ffc | 9991 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 9992 | |
2cdad34c | 9993 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
9994 | aarch64_set_reg_u64 (cpu, rd, NO_SP, ((uint64_t) val) << (pos * 16)); |
9995 | } | |
9996 | ||
9997 | /* 32 bit move 16 bit immediate negated. */ | |
9998 | static void | |
9999 | movn32 (sim_cpu *cpu, uint32_t val, uint32_t pos) | |
10000 | { | |
ef0d8ffc | 10001 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 10002 | |
2cdad34c | 10003 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
10004 | aarch64_set_reg_u64 (cpu, rd, NO_SP, ((val << (pos * 16)) ^ 0xffffffffU)); |
10005 | } | |
10006 | ||
10007 | /* 64 bit move 16 bit immediate negated. */ | |
10008 | static void | |
10009 | movn64 (sim_cpu *cpu, uint32_t val, uint32_t pos) | |
10010 | { | |
ef0d8ffc | 10011 | unsigned rd = INSTR (4, 0); |
2e8cf49e | 10012 | |
2cdad34c | 10013 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
10014 | aarch64_set_reg_u64 |
10015 | (cpu, rd, NO_SP, ((((uint64_t) val) << (pos * 16)) | |
10016 | ^ 0xffffffffffffffffULL)); | |
10017 | } | |
10018 | ||
10019 | /* 32 bit move 16 bit immediate keep remaining shorts. */ | |
10020 | static void | |
10021 | movk32 (sim_cpu *cpu, uint32_t val, uint32_t pos) | |
10022 | { | |
ef0d8ffc | 10023 | unsigned rd = INSTR (4, 0); |
2e8cf49e NC |
10024 | uint32_t current = aarch64_get_reg_u32 (cpu, rd, NO_SP); |
10025 | uint32_t value = val << (pos * 16); | |
10026 | uint32_t mask = ~(0xffffU << (pos * 16)); | |
10027 | ||
2cdad34c | 10028 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
10029 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (value | (current & mask))); |
10030 | } | |
10031 | ||
10032 | /* 64 bit move 16 it immediate keep remaining shorts. */ | |
10033 | static void | |
10034 | movk64 (sim_cpu *cpu, uint32_t val, uint32_t pos) | |
10035 | { | |
ef0d8ffc | 10036 | unsigned rd = INSTR (4, 0); |
2e8cf49e NC |
10037 | uint64_t current = aarch64_get_reg_u64 (cpu, rd, NO_SP); |
10038 | uint64_t value = (uint64_t) val << (pos * 16); | |
10039 | uint64_t mask = ~(0xffffULL << (pos * 16)); | |
10040 | ||
2cdad34c | 10041 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
10042 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (value | (current & mask))); |
10043 | } | |
10044 | ||
10045 | static void | |
10046 | dexMoveWideImmediate (sim_cpu *cpu) | |
10047 | { | |
10048 | /* assert instr[28:23] = 100101 | |
10049 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
10050 | instr[30,29] = op : 0 ==> MOVN, 1 ==> UNALLOC, 2 ==> MOVZ, 3 ==> MOVK | |
10051 | instr[22,21] = shift : 00 == LSL#0, 01 = LSL#16, 10 = LSL#32, 11 = LSL#48 | |
10052 | instr[20,5] = uimm16 | |
10053 | instr[4,0] = Rd */ | |
10054 | ||
10055 | /* N.B. the (multiple of 16) shift is applied by the called routine, | |
10056 | we just pass the multiplier. */ | |
10057 | ||
10058 | uint32_t imm; | |
ef0d8ffc NC |
10059 | uint32_t size = INSTR (31, 31); |
10060 | uint32_t op = INSTR (30, 29); | |
10061 | uint32_t shift = INSTR (22, 21); | |
2e8cf49e NC |
10062 | |
10063 | /* 32 bit can only shift 0 or 1 lot of 16. | |
10064 | anything else is an unallocated instruction. */ | |
10065 | if (size == 0 && (shift > 1)) | |
10066 | HALT_UNALLOC; | |
10067 | ||
10068 | if (op == 1) | |
10069 | HALT_UNALLOC; | |
10070 | ||
ef0d8ffc | 10071 | imm = INSTR (20, 5); |
2e8cf49e NC |
10072 | |
10073 | if (size == 0) | |
10074 | { | |
10075 | if (op == 0) | |
10076 | movn32 (cpu, imm, shift); | |
10077 | else if (op == 2) | |
10078 | movz32 (cpu, imm, shift); | |
10079 | else | |
10080 | movk32 (cpu, imm, shift); | |
10081 | } | |
10082 | else | |
10083 | { | |
10084 | if (op == 0) | |
10085 | movn64 (cpu, imm, shift); | |
10086 | else if (op == 2) | |
10087 | movz64 (cpu, imm, shift); | |
10088 | else | |
10089 | movk64 (cpu, imm, shift); | |
10090 | } | |
10091 | } | |
10092 | ||
10093 | /* Bitfield operations. | |
10094 | These take a pair of bit positions r and s which are in {0..31} | |
10095 | or {0..63} depending on the instruction word size. | |
10096 | N.B register args may not be SP. */ | |
10097 | ||
10098 | /* OK, we start with ubfm which just needs to pick | |
10099 | some bits out of source zero the rest and write | |
10100 | the result to dest. Just need two logical shifts. */ | |
10101 | ||
10102 | /* 32 bit bitfield move, left and right of affected zeroed | |
10103 | if r <= s Wd<s-r:0> = Wn<s:r> else Wd<32+s-r,32-r> = Wn<s:0>. */ | |
10104 | static void | |
10105 | ubfm32 (sim_cpu *cpu, uint32_t r, uint32_t s) | |
10106 | { | |
10107 | unsigned rd; | |
ef0d8ffc | 10108 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
10109 | uint32_t value = aarch64_get_reg_u32 (cpu, rn, NO_SP); |
10110 | ||
10111 | /* Pick either s+1-r or s+1 consecutive bits out of the original word. */ | |
10112 | if (r <= s) | |
10113 | { | |
10114 | /* 31:...:s:xxx:r:...:0 ==> 31:...:s-r:xxx:0. | |
10115 | We want only bits s:xxx:r at the bottom of the word | |
10116 | so we LSL bit s up to bit 31 i.e. by 31 - s | |
10117 | and then we LSR to bring bit 31 down to bit s - r | |
10118 | i.e. by 31 + r - s. */ | |
10119 | value <<= 31 - s; | |
10120 | value >>= 31 + r - s; | |
10121 | } | |
10122 | else | |
10123 | { | |
10124 | /* 31:...:s:xxx:0 ==> 31:...:31-(r-1)+s:xxx:31-(r-1):...:0 | |
10125 | We want only bits s:xxx:0 starting at it 31-(r-1) | |
10126 | so we LSL bit s up to bit 31 i.e. by 31 - s | |
10127 | and then we LSL to bring bit 31 down to 31-(r-1)+s | |
10128 | i.e. by r - (s + 1). */ | |
10129 | value <<= 31 - s; | |
10130 | value >>= r - (s + 1); | |
10131 | } | |
10132 | ||
2cdad34c | 10133 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 10134 | rd = INSTR (4, 0); |
2e8cf49e NC |
10135 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value); |
10136 | } | |
10137 | ||
10138 | /* 64 bit bitfield move, left and right of affected zeroed | |
10139 | if r <= s Wd<s-r:0> = Wn<s:r> else Wd<64+s-r,64-r> = Wn<s:0>. */ | |
10140 | static void | |
10141 | ubfm (sim_cpu *cpu, uint32_t r, uint32_t s) | |
10142 | { | |
10143 | unsigned rd; | |
ef0d8ffc | 10144 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
10145 | uint64_t value = aarch64_get_reg_u64 (cpu, rn, NO_SP); |
10146 | ||
10147 | if (r <= s) | |
10148 | { | |
10149 | /* 63:...:s:xxx:r:...:0 ==> 63:...:s-r:xxx:0. | |
10150 | We want only bits s:xxx:r at the bottom of the word. | |
10151 | So we LSL bit s up to bit 63 i.e. by 63 - s | |
10152 | and then we LSR to bring bit 63 down to bit s - r | |
10153 | i.e. by 63 + r - s. */ | |
10154 | value <<= 63 - s; | |
10155 | value >>= 63 + r - s; | |
10156 | } | |
10157 | else | |
10158 | { | |
10159 | /* 63:...:s:xxx:0 ==> 63:...:63-(r-1)+s:xxx:63-(r-1):...:0. | |
10160 | We want only bits s:xxx:0 starting at it 63-(r-1). | |
10161 | So we LSL bit s up to bit 63 i.e. by 63 - s | |
10162 | and then we LSL to bring bit 63 down to 63-(r-1)+s | |
10163 | i.e. by r - (s + 1). */ | |
10164 | value <<= 63 - s; | |
10165 | value >>= r - (s + 1); | |
10166 | } | |
10167 | ||
2cdad34c | 10168 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 10169 | rd = INSTR (4, 0); |
2e8cf49e NC |
10170 | aarch64_set_reg_u64 (cpu, rd, NO_SP, value); |
10171 | } | |
10172 | ||
10173 | /* The signed versions need to insert sign bits | |
10174 | on the left of the inserted bit field. so we do | |
10175 | much the same as the unsigned version except we | |
10176 | use an arithmetic shift right -- this just means | |
10177 | we need to operate on signed values. */ | |
10178 | ||
10179 | /* 32 bit bitfield move, left of affected sign-extended, right zeroed. */ | |
10180 | /* If r <= s Wd<s-r:0> = Wn<s:r> else Wd<32+s-r,32-r> = Wn<s:0>. */ | |
10181 | static void | |
10182 | sbfm32 (sim_cpu *cpu, uint32_t r, uint32_t s) | |
10183 | { | |
10184 | unsigned rd; | |
ef0d8ffc | 10185 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
10186 | /* as per ubfm32 but use an ASR instead of an LSR. */ |
10187 | int32_t value = aarch64_get_reg_s32 (cpu, rn, NO_SP); | |
10188 | ||
10189 | if (r <= s) | |
10190 | { | |
10191 | value <<= 31 - s; | |
10192 | value >>= 31 + r - s; | |
10193 | } | |
10194 | else | |
10195 | { | |
10196 | value <<= 31 - s; | |
10197 | value >>= r - (s + 1); | |
10198 | } | |
10199 | ||
2cdad34c | 10200 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 10201 | rd = INSTR (4, 0); |
2e8cf49e NC |
10202 | aarch64_set_reg_u64 (cpu, rd, NO_SP, (uint32_t) value); |
10203 | } | |
10204 | ||
10205 | /* 64 bit bitfield move, left of affected sign-extended, right zeroed. */ | |
10206 | /* If r <= s Wd<s-r:0> = Wn<s:r> else Wd<64+s-r,64-r> = Wn<s:0>. */ | |
10207 | static void | |
10208 | sbfm (sim_cpu *cpu, uint32_t r, uint32_t s) | |
10209 | { | |
10210 | unsigned rd; | |
ef0d8ffc | 10211 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
10212 | /* acpu per ubfm but use an ASR instead of an LSR. */ |
10213 | int64_t value = aarch64_get_reg_s64 (cpu, rn, NO_SP); | |
10214 | ||
10215 | if (r <= s) | |
10216 | { | |
10217 | value <<= 63 - s; | |
10218 | value >>= 63 + r - s; | |
10219 | } | |
10220 | else | |
10221 | { | |
10222 | value <<= 63 - s; | |
10223 | value >>= r - (s + 1); | |
10224 | } | |
10225 | ||
2cdad34c | 10226 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 10227 | rd = INSTR (4, 0); |
2e8cf49e NC |
10228 | aarch64_set_reg_s64 (cpu, rd, NO_SP, value); |
10229 | } | |
10230 | ||
10231 | /* Finally, these versions leave non-affected bits | |
10232 | as is. so we need to generate the bits as per | |
10233 | ubfm and also generate a mask to pick the | |
10234 | bits from the original and computed values. */ | |
10235 | ||
10236 | /* 32 bit bitfield move, non-affected bits left as is. | |
10237 | If r <= s Wd<s-r:0> = Wn<s:r> else Wd<32+s-r,32-r> = Wn<s:0>. */ | |
10238 | static void | |
10239 | bfm32 (sim_cpu *cpu, uint32_t r, uint32_t s) | |
10240 | { | |
ef0d8ffc | 10241 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
10242 | uint32_t value = aarch64_get_reg_u32 (cpu, rn, NO_SP); |
10243 | uint32_t mask = -1; | |
10244 | unsigned rd; | |
10245 | uint32_t value2; | |
10246 | ||
10247 | /* Pick either s+1-r or s+1 consecutive bits out of the original word. */ | |
10248 | if (r <= s) | |
10249 | { | |
10250 | /* 31:...:s:xxx:r:...:0 ==> 31:...:s-r:xxx:0. | |
10251 | We want only bits s:xxx:r at the bottom of the word | |
10252 | so we LSL bit s up to bit 31 i.e. by 31 - s | |
10253 | and then we LSR to bring bit 31 down to bit s - r | |
10254 | i.e. by 31 + r - s. */ | |
10255 | value <<= 31 - s; | |
10256 | value >>= 31 + r - s; | |
10257 | /* the mask must include the same bits. */ | |
10258 | mask <<= 31 - s; | |
10259 | mask >>= 31 + r - s; | |
10260 | } | |
10261 | else | |
10262 | { | |
10263 | /* 31:...:s:xxx:0 ==> 31:...:31-(r-1)+s:xxx:31-(r-1):...:0. | |
10264 | We want only bits s:xxx:0 starting at it 31-(r-1) | |
10265 | so we LSL bit s up to bit 31 i.e. by 31 - s | |
10266 | and then we LSL to bring bit 31 down to 31-(r-1)+s | |
10267 | i.e. by r - (s + 1). */ | |
10268 | value <<= 31 - s; | |
10269 | value >>= r - (s + 1); | |
10270 | /* The mask must include the same bits. */ | |
10271 | mask <<= 31 - s; | |
10272 | mask >>= r - (s + 1); | |
10273 | } | |
10274 | ||
ef0d8ffc | 10275 | rd = INSTR (4, 0); |
2e8cf49e NC |
10276 | value2 = aarch64_get_reg_u32 (cpu, rd, NO_SP); |
10277 | ||
10278 | value2 &= ~mask; | |
10279 | value2 |= value; | |
10280 | ||
2cdad34c | 10281 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
10282 | aarch64_set_reg_u64 |
10283 | (cpu, rd, NO_SP, (aarch64_get_reg_u32 (cpu, rd, NO_SP) & ~mask) | value); | |
10284 | } | |
10285 | ||
10286 | /* 64 bit bitfield move, non-affected bits left as is. | |
10287 | If r <= s Wd<s-r:0> = Wn<s:r> else Wd<64+s-r,64-r> = Wn<s:0>. */ | |
10288 | static void | |
10289 | bfm (sim_cpu *cpu, uint32_t r, uint32_t s) | |
10290 | { | |
10291 | unsigned rd; | |
ef0d8ffc | 10292 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
10293 | uint64_t value = aarch64_get_reg_u64 (cpu, rn, NO_SP); |
10294 | uint64_t mask = 0xffffffffffffffffULL; | |
10295 | ||
10296 | if (r <= s) | |
10297 | { | |
10298 | /* 63:...:s:xxx:r:...:0 ==> 63:...:s-r:xxx:0. | |
10299 | We want only bits s:xxx:r at the bottom of the word | |
10300 | so we LSL bit s up to bit 63 i.e. by 63 - s | |
10301 | and then we LSR to bring bit 63 down to bit s - r | |
10302 | i.e. by 63 + r - s. */ | |
10303 | value <<= 63 - s; | |
10304 | value >>= 63 + r - s; | |
10305 | /* The mask must include the same bits. */ | |
10306 | mask <<= 63 - s; | |
10307 | mask >>= 63 + r - s; | |
10308 | } | |
10309 | else | |
10310 | { | |
10311 | /* 63:...:s:xxx:0 ==> 63:...:63-(r-1)+s:xxx:63-(r-1):...:0 | |
10312 | We want only bits s:xxx:0 starting at it 63-(r-1) | |
10313 | so we LSL bit s up to bit 63 i.e. by 63 - s | |
10314 | and then we LSL to bring bit 63 down to 63-(r-1)+s | |
10315 | i.e. by r - (s + 1). */ | |
10316 | value <<= 63 - s; | |
10317 | value >>= r - (s + 1); | |
10318 | /* The mask must include the same bits. */ | |
10319 | mask <<= 63 - s; | |
10320 | mask >>= r - (s + 1); | |
10321 | } | |
10322 | ||
2cdad34c | 10323 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
ef0d8ffc | 10324 | rd = INSTR (4, 0); |
2e8cf49e NC |
10325 | aarch64_set_reg_u64 |
10326 | (cpu, rd, NO_SP, (aarch64_get_reg_u64 (cpu, rd, NO_SP) & ~mask) | value); | |
10327 | } | |
10328 | ||
10329 | static void | |
10330 | dexBitfieldImmediate (sim_cpu *cpu) | |
10331 | { | |
10332 | /* assert instr[28:23] = 100110 | |
10333 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
10334 | instr[30,29] = op : 0 ==> SBFM, 1 ==> BFM, 2 ==> UBFM, 3 ==> UNALLOC | |
10335 | instr[22] = N : must be 0 for 32 bit, 1 for 64 bit ow UNALLOC | |
10336 | instr[21,16] = immr : 0xxxxx for 32 bit, xxxxxx for 64 bit | |
10337 | instr[15,10] = imms : 0xxxxx for 32 bit, xxxxxx for 64 bit | |
10338 | instr[9,5] = Rn | |
10339 | instr[4,0] = Rd */ | |
10340 | ||
10341 | /* 32 bit operations must have N = 0 or else we have an UNALLOC. */ | |
10342 | uint32_t dispatch; | |
10343 | uint32_t imms; | |
ef0d8ffc NC |
10344 | uint32_t size = INSTR (31, 31); |
10345 | uint32_t N = INSTR (22, 22); | |
2e8cf49e NC |
10346 | /* 32 bit operations must have immr[5] = 0 and imms[5] = 0. */ |
10347 | /* or else we have an UNALLOC. */ | |
ef0d8ffc | 10348 | uint32_t immr = INSTR (21, 16); |
2e8cf49e NC |
10349 | |
10350 | if (~size & N) | |
10351 | HALT_UNALLOC; | |
10352 | ||
10353 | if (!size && uimm (immr, 5, 5)) | |
10354 | HALT_UNALLOC; | |
10355 | ||
ef0d8ffc | 10356 | imms = INSTR (15, 10); |
2e8cf49e NC |
10357 | if (!size && uimm (imms, 5, 5)) |
10358 | HALT_UNALLOC; | |
10359 | ||
10360 | /* Switch on combined size and op. */ | |
ef0d8ffc | 10361 | dispatch = INSTR (31, 29); |
2e8cf49e NC |
10362 | switch (dispatch) |
10363 | { | |
10364 | case 0: sbfm32 (cpu, immr, imms); return; | |
10365 | case 1: bfm32 (cpu, immr, imms); return; | |
10366 | case 2: ubfm32 (cpu, immr, imms); return; | |
10367 | case 4: sbfm (cpu, immr, imms); return; | |
10368 | case 5: bfm (cpu, immr, imms); return; | |
10369 | case 6: ubfm (cpu, immr, imms); return; | |
10370 | default: HALT_UNALLOC; | |
10371 | } | |
10372 | } | |
10373 | ||
10374 | static void | |
10375 | do_EXTR_32 (sim_cpu *cpu) | |
10376 | { | |
10377 | /* instr[31:21] = 00010011100 | |
10378 | instr[20,16] = Rm | |
10379 | instr[15,10] = imms : 0xxxxx for 32 bit | |
10380 | instr[9,5] = Rn | |
10381 | instr[4,0] = Rd */ | |
ef0d8ffc NC |
10382 | unsigned rm = INSTR (20, 16); |
10383 | unsigned imms = INSTR (15, 10) & 31; | |
10384 | unsigned rn = INSTR ( 9, 5); | |
10385 | unsigned rd = INSTR ( 4, 0); | |
2e8cf49e NC |
10386 | uint64_t val1; |
10387 | uint64_t val2; | |
10388 | ||
10389 | val1 = aarch64_get_reg_u32 (cpu, rm, NO_SP); | |
10390 | val1 >>= imms; | |
10391 | val2 = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
10392 | val2 <<= (32 - imms); | |
10393 | ||
2cdad34c | 10394 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
10395 | aarch64_set_reg_u64 (cpu, rd, NO_SP, val1 | val2); |
10396 | } | |
10397 | ||
10398 | static void | |
10399 | do_EXTR_64 (sim_cpu *cpu) | |
10400 | { | |
10401 | /* instr[31:21] = 10010011100 | |
10402 | instr[20,16] = Rm | |
10403 | instr[15,10] = imms | |
10404 | instr[9,5] = Rn | |
10405 | instr[4,0] = Rd */ | |
ef0d8ffc NC |
10406 | unsigned rm = INSTR (20, 16); |
10407 | unsigned imms = INSTR (15, 10) & 63; | |
10408 | unsigned rn = INSTR ( 9, 5); | |
10409 | unsigned rd = INSTR ( 4, 0); | |
2e8cf49e NC |
10410 | uint64_t val; |
10411 | ||
10412 | val = aarch64_get_reg_u64 (cpu, rm, NO_SP); | |
10413 | val >>= imms; | |
10414 | val |= (aarch64_get_reg_u64 (cpu, rn, NO_SP) << (64 - imms)); | |
10415 | ||
10416 | aarch64_set_reg_u64 (cpu, rd, NO_SP, val); | |
10417 | } | |
10418 | ||
10419 | static void | |
10420 | dexExtractImmediate (sim_cpu *cpu) | |
10421 | { | |
10422 | /* assert instr[28:23] = 100111 | |
10423 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
10424 | instr[30,29] = op21 : 0 ==> EXTR, 1,2,3 ==> UNALLOC | |
10425 | instr[22] = N : must be 0 for 32 bit, 1 for 64 bit or UNALLOC | |
10426 | instr[21] = op0 : must be 0 or UNALLOC | |
10427 | instr[20,16] = Rm | |
10428 | instr[15,10] = imms : 0xxxxx for 32 bit, xxxxxx for 64 bit | |
10429 | instr[9,5] = Rn | |
10430 | instr[4,0] = Rd */ | |
10431 | ||
10432 | /* 32 bit operations must have N = 0 or else we have an UNALLOC. */ | |
10433 | /* 64 bit operations must have N = 1 or else we have an UNALLOC. */ | |
10434 | uint32_t dispatch; | |
ef0d8ffc NC |
10435 | uint32_t size = INSTR (31, 31); |
10436 | uint32_t N = INSTR (22, 22); | |
2e8cf49e NC |
10437 | /* 32 bit operations must have imms[5] = 0 |
10438 | or else we have an UNALLOC. */ | |
ef0d8ffc | 10439 | uint32_t imms = INSTR (15, 10); |
2e8cf49e NC |
10440 | |
10441 | if (size ^ N) | |
10442 | HALT_UNALLOC; | |
10443 | ||
10444 | if (!size && uimm (imms, 5, 5)) | |
10445 | HALT_UNALLOC; | |
10446 | ||
10447 | /* Switch on combined size and op. */ | |
ef0d8ffc | 10448 | dispatch = INSTR (31, 29); |
2e8cf49e NC |
10449 | |
10450 | if (dispatch == 0) | |
10451 | do_EXTR_32 (cpu); | |
10452 | ||
10453 | else if (dispatch == 4) | |
10454 | do_EXTR_64 (cpu); | |
10455 | ||
10456 | else if (dispatch == 1) | |
10457 | HALT_NYI; | |
10458 | else | |
10459 | HALT_UNALLOC; | |
10460 | } | |
10461 | ||
10462 | static void | |
10463 | dexDPImm (sim_cpu *cpu) | |
10464 | { | |
10465 | /* uint32_t group = dispatchGroup (aarch64_get_instr (cpu)); | |
10466 | assert group == GROUP_DPIMM_1000 || grpoup == GROUP_DPIMM_1001 | |
10467 | bits [25,23] of a DPImm are the secondary dispatch vector. */ | |
10468 | uint32_t group2 = dispatchDPImm (aarch64_get_instr (cpu)); | |
10469 | ||
10470 | switch (group2) | |
10471 | { | |
10472 | case DPIMM_PCADR_000: | |
10473 | case DPIMM_PCADR_001: | |
10474 | dexPCRelAddressing (cpu); | |
10475 | return; | |
10476 | ||
10477 | case DPIMM_ADDSUB_010: | |
10478 | case DPIMM_ADDSUB_011: | |
10479 | dexAddSubtractImmediate (cpu); | |
10480 | return; | |
10481 | ||
10482 | case DPIMM_LOG_100: | |
10483 | dexLogicalImmediate (cpu); | |
10484 | return; | |
10485 | ||
10486 | case DPIMM_MOV_101: | |
10487 | dexMoveWideImmediate (cpu); | |
10488 | return; | |
10489 | ||
10490 | case DPIMM_BITF_110: | |
10491 | dexBitfieldImmediate (cpu); | |
10492 | return; | |
10493 | ||
10494 | case DPIMM_EXTR_111: | |
10495 | dexExtractImmediate (cpu); | |
10496 | return; | |
10497 | ||
10498 | default: | |
10499 | /* Should never reach here. */ | |
10500 | HALT_NYI; | |
10501 | } | |
10502 | } | |
10503 | ||
10504 | static void | |
10505 | dexLoadUnscaledImmediate (sim_cpu *cpu) | |
10506 | { | |
10507 | /* instr[29,24] == 111_00 | |
10508 | instr[21] == 0 | |
10509 | instr[11,10] == 00 | |
10510 | instr[31,30] = size | |
10511 | instr[26] = V | |
10512 | instr[23,22] = opc | |
10513 | instr[20,12] = simm9 | |
10514 | instr[9,5] = rn may be SP. */ | |
ef0d8ffc NC |
10515 | /* unsigned rt = INSTR (4, 0); */ |
10516 | uint32_t V = INSTR (26, 26); | |
7517e550 | 10517 | uint32_t dispatch = ((INSTR (31, 30) << 2) | INSTR (23, 22)); |
2e8cf49e NC |
10518 | int32_t imm = simm32 (aarch64_get_instr (cpu), 20, 12); |
10519 | ||
10520 | if (!V) | |
10521 | { | |
10522 | /* GReg operations. */ | |
10523 | switch (dispatch) | |
10524 | { | |
10525 | case 0: sturb (cpu, imm); return; | |
10526 | case 1: ldurb32 (cpu, imm); return; | |
10527 | case 2: ldursb64 (cpu, imm); return; | |
10528 | case 3: ldursb32 (cpu, imm); return; | |
10529 | case 4: sturh (cpu, imm); return; | |
10530 | case 5: ldurh32 (cpu, imm); return; | |
10531 | case 6: ldursh64 (cpu, imm); return; | |
10532 | case 7: ldursh32 (cpu, imm); return; | |
10533 | case 8: stur32 (cpu, imm); return; | |
10534 | case 9: ldur32 (cpu, imm); return; | |
10535 | case 10: ldursw (cpu, imm); return; | |
10536 | case 12: stur64 (cpu, imm); return; | |
10537 | case 13: ldur64 (cpu, imm); return; | |
10538 | ||
10539 | case 14: | |
10540 | /* PRFUM NYI. */ | |
10541 | HALT_NYI; | |
10542 | ||
10543 | default: | |
10544 | case 11: | |
10545 | case 15: | |
10546 | HALT_UNALLOC; | |
10547 | } | |
10548 | } | |
10549 | ||
10550 | /* FReg operations. */ | |
10551 | switch (dispatch) | |
10552 | { | |
10553 | case 2: fsturq (cpu, imm); return; | |
10554 | case 3: fldurq (cpu, imm); return; | |
10555 | case 8: fsturs (cpu, imm); return; | |
10556 | case 9: fldurs (cpu, imm); return; | |
10557 | case 12: fsturd (cpu, imm); return; | |
10558 | case 13: fldurd (cpu, imm); return; | |
10559 | ||
10560 | case 0: /* STUR 8 bit FP. */ | |
10561 | case 1: /* LDUR 8 bit FP. */ | |
10562 | case 4: /* STUR 16 bit FP. */ | |
10563 | case 5: /* LDUR 8 bit FP. */ | |
10564 | HALT_NYI; | |
10565 | ||
10566 | default: | |
10567 | case 6: | |
10568 | case 7: | |
10569 | case 10: | |
10570 | case 11: | |
10571 | case 14: | |
10572 | case 15: | |
10573 | HALT_UNALLOC; | |
10574 | } | |
10575 | } | |
10576 | ||
10577 | /* N.B. A preliminary note regarding all the ldrs<x>32 | |
10578 | instructions | |
10579 | ||
10580 | The signed value loaded by these instructions is cast to unsigned | |
10581 | before being assigned to aarch64_get_reg_u64 (cpu, N) i.e. to the | |
10582 | 64 bit element of the GReg union. this performs a 32 bit sign extension | |
10583 | (as required) but avoids 64 bit sign extension, thus ensuring that the | |
10584 | top half of the register word is zero. this is what the spec demands | |
10585 | when a 32 bit load occurs. */ | |
10586 | ||
10587 | /* 32 bit load sign-extended byte scaled unsigned 12 bit. */ | |
10588 | static void | |
10589 | ldrsb32_abs (sim_cpu *cpu, uint32_t offset) | |
10590 | { | |
ef0d8ffc NC |
10591 | unsigned int rn = INSTR (9, 5); |
10592 | unsigned int rt = INSTR (4, 0); | |
2e8cf49e NC |
10593 | |
10594 | /* The target register may not be SP but the source may be | |
10595 | there is no scaling required for a byte load. */ | |
10596 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset; | |
10597 | aarch64_set_reg_u64 (cpu, rt, NO_SP, | |
10598 | (int64_t) aarch64_get_mem_s8 (cpu, address)); | |
10599 | } | |
10600 | ||
10601 | /* 32 bit load sign-extended byte scaled or unscaled zero- | |
10602 | or sign-extended 32-bit register offset. */ | |
10603 | static void | |
10604 | ldrsb32_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
10605 | { | |
ef0d8ffc NC |
10606 | unsigned int rm = INSTR (20, 16); |
10607 | unsigned int rn = INSTR (9, 5); | |
10608 | unsigned int rt = INSTR (4, 0); | |
2e8cf49e NC |
10609 | |
10610 | /* rn may reference SP, rm and rt must reference ZR. */ | |
10611 | ||
10612 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10613 | int64_t displacement = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
10614 | extension); | |
10615 | ||
10616 | /* There is no scaling required for a byte load. */ | |
10617 | aarch64_set_reg_u64 | |
10618 | (cpu, rt, NO_SP, (int64_t) aarch64_get_mem_s8 (cpu, address | |
10619 | + displacement)); | |
10620 | } | |
10621 | ||
10622 | /* 32 bit load sign-extended byte unscaled signed 9 bit with | |
10623 | pre- or post-writeback. */ | |
10624 | static void | |
10625 | ldrsb32_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
10626 | { | |
10627 | uint64_t address; | |
ef0d8ffc NC |
10628 | unsigned int rn = INSTR (9, 5); |
10629 | unsigned int rt = INSTR (4, 0); | |
2e8cf49e NC |
10630 | |
10631 | if (rn == rt && wb != NoWriteBack) | |
10632 | HALT_UNALLOC; | |
10633 | ||
10634 | address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10635 | ||
10636 | if (wb == Pre) | |
10637 | address += offset; | |
10638 | ||
10639 | aarch64_set_reg_u64 (cpu, rt, NO_SP, | |
10640 | (int64_t) aarch64_get_mem_s8 (cpu, address)); | |
10641 | ||
10642 | if (wb == Post) | |
10643 | address += offset; | |
10644 | ||
10645 | if (wb != NoWriteBack) | |
10646 | aarch64_set_reg_u64 (cpu, rn, NO_SP, address); | |
10647 | } | |
10648 | ||
10649 | /* 8 bit store scaled. */ | |
10650 | static void | |
10651 | fstrb_abs (sim_cpu *cpu, uint32_t offset) | |
10652 | { | |
ef0d8ffc NC |
10653 | unsigned st = INSTR (4, 0); |
10654 | unsigned rn = INSTR (9, 5); | |
2e8cf49e NC |
10655 | |
10656 | aarch64_set_mem_u8 (cpu, | |
10657 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + offset, | |
10658 | aarch64_get_vec_u8 (cpu, st, 0)); | |
10659 | } | |
10660 | ||
10661 | /* 8 bit store scaled or unscaled zero- or | |
10662 | sign-extended 8-bit register offset. */ | |
10663 | static void | |
10664 | fstrb_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
10665 | { | |
ef0d8ffc NC |
10666 | unsigned rm = INSTR (20, 16); |
10667 | unsigned rn = INSTR (9, 5); | |
10668 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10669 | |
10670 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10671 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
10672 | extension); | |
7517e550 | 10673 | uint64_t displacement = scaling == Scaled ? extended : 0; |
2e8cf49e NC |
10674 | |
10675 | aarch64_set_mem_u8 | |
10676 | (cpu, address + displacement, aarch64_get_vec_u8 (cpu, st, 0)); | |
10677 | } | |
10678 | ||
10679 | /* 16 bit store scaled. */ | |
10680 | static void | |
10681 | fstrh_abs (sim_cpu *cpu, uint32_t offset) | |
10682 | { | |
ef0d8ffc NC |
10683 | unsigned st = INSTR (4, 0); |
10684 | unsigned rn = INSTR (9, 5); | |
2e8cf49e NC |
10685 | |
10686 | aarch64_set_mem_u16 | |
10687 | (cpu, | |
10688 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 16), | |
10689 | aarch64_get_vec_u16 (cpu, st, 0)); | |
10690 | } | |
10691 | ||
10692 | /* 16 bit store scaled or unscaled zero- | |
10693 | or sign-extended 16-bit register offset. */ | |
10694 | static void | |
10695 | fstrh_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
10696 | { | |
ef0d8ffc NC |
10697 | unsigned rm = INSTR (20, 16); |
10698 | unsigned rn = INSTR (9, 5); | |
10699 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10700 | |
10701 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10702 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
10703 | extension); | |
7517e550 | 10704 | uint64_t displacement = OPT_SCALE (extended, 16, scaling); |
2e8cf49e NC |
10705 | |
10706 | aarch64_set_mem_u16 | |
10707 | (cpu, address + displacement, aarch64_get_vec_u16 (cpu, st, 0)); | |
10708 | } | |
10709 | ||
10710 | /* 32 bit store scaled unsigned 12 bit. */ | |
10711 | static void | |
10712 | fstrs_abs (sim_cpu *cpu, uint32_t offset) | |
10713 | { | |
ef0d8ffc NC |
10714 | unsigned st = INSTR (4, 0); |
10715 | unsigned rn = INSTR (9, 5); | |
2e8cf49e | 10716 | |
e101a78b | 10717 | aarch64_set_mem_u32 |
2e8cf49e NC |
10718 | (cpu, |
10719 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 32), | |
e101a78b | 10720 | aarch64_get_vec_u32 (cpu, st, 0)); |
2e8cf49e NC |
10721 | } |
10722 | ||
10723 | /* 32 bit store unscaled signed 9 bit with pre- or post-writeback. */ | |
10724 | static void | |
10725 | fstrs_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
10726 | { | |
ef0d8ffc NC |
10727 | unsigned rn = INSTR (9, 5); |
10728 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10729 | |
10730 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10731 | ||
10732 | if (wb != Post) | |
10733 | address += offset; | |
10734 | ||
e101a78b | 10735 | aarch64_set_mem_u32 (cpu, address, aarch64_get_vec_u32 (cpu, st, 0)); |
2e8cf49e NC |
10736 | |
10737 | if (wb == Post) | |
10738 | address += offset; | |
10739 | ||
10740 | if (wb != NoWriteBack) | |
10741 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
10742 | } | |
10743 | ||
10744 | /* 32 bit store scaled or unscaled zero- | |
10745 | or sign-extended 32-bit register offset. */ | |
10746 | static void | |
10747 | fstrs_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
10748 | { | |
ef0d8ffc NC |
10749 | unsigned rm = INSTR (20, 16); |
10750 | unsigned rn = INSTR (9, 5); | |
10751 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10752 | |
10753 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10754 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
10755 | extension); | |
10756 | uint64_t displacement = OPT_SCALE (extended, 32, scaling); | |
10757 | ||
e101a78b NC |
10758 | aarch64_set_mem_u32 |
10759 | (cpu, address + displacement, aarch64_get_vec_u32 (cpu, st, 0)); | |
2e8cf49e NC |
10760 | } |
10761 | ||
10762 | /* 64 bit store scaled unsigned 12 bit. */ | |
10763 | static void | |
10764 | fstrd_abs (sim_cpu *cpu, uint32_t offset) | |
10765 | { | |
ef0d8ffc NC |
10766 | unsigned st = INSTR (4, 0); |
10767 | unsigned rn = INSTR (9, 5); | |
2e8cf49e | 10768 | |
e101a78b | 10769 | aarch64_set_mem_u64 |
2e8cf49e NC |
10770 | (cpu, |
10771 | aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 64), | |
e101a78b | 10772 | aarch64_get_vec_u64 (cpu, st, 0)); |
2e8cf49e NC |
10773 | } |
10774 | ||
10775 | /* 64 bit store unscaled signed 9 bit with pre- or post-writeback. */ | |
10776 | static void | |
10777 | fstrd_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
10778 | { | |
ef0d8ffc NC |
10779 | unsigned rn = INSTR (9, 5); |
10780 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10781 | |
10782 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10783 | ||
10784 | if (wb != Post) | |
10785 | address += offset; | |
10786 | ||
e101a78b | 10787 | aarch64_set_mem_u64 (cpu, address, aarch64_get_vec_u64 (cpu, st, 0)); |
2e8cf49e NC |
10788 | |
10789 | if (wb == Post) | |
10790 | address += offset; | |
10791 | ||
10792 | if (wb != NoWriteBack) | |
10793 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
10794 | } | |
10795 | ||
10796 | /* 64 bit store scaled or unscaled zero- | |
10797 | or sign-extended 32-bit register offset. */ | |
10798 | static void | |
10799 | fstrd_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
10800 | { | |
ef0d8ffc NC |
10801 | unsigned rm = INSTR (20, 16); |
10802 | unsigned rn = INSTR (9, 5); | |
10803 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10804 | |
10805 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10806 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
10807 | extension); | |
10808 | uint64_t displacement = OPT_SCALE (extended, 64, scaling); | |
10809 | ||
e101a78b NC |
10810 | aarch64_set_mem_u64 |
10811 | (cpu, address + displacement, aarch64_get_vec_u64 (cpu, st, 0)); | |
2e8cf49e NC |
10812 | } |
10813 | ||
10814 | /* 128 bit store scaled unsigned 12 bit. */ | |
10815 | static void | |
10816 | fstrq_abs (sim_cpu *cpu, uint32_t offset) | |
10817 | { | |
10818 | FRegister a; | |
ef0d8ffc NC |
10819 | unsigned st = INSTR (4, 0); |
10820 | unsigned rn = INSTR (9, 5); | |
2e8cf49e NC |
10821 | uint64_t addr; |
10822 | ||
10823 | aarch64_get_FP_long_double (cpu, st, & a); | |
10824 | ||
10825 | addr = aarch64_get_reg_u64 (cpu, rn, SP_OK) + SCALE (offset, 128); | |
10826 | aarch64_set_mem_long_double (cpu, addr, a); | |
10827 | } | |
10828 | ||
10829 | /* 128 bit store unscaled signed 9 bit with pre- or post-writeback. */ | |
10830 | static void | |
10831 | fstrq_wb (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
10832 | { | |
10833 | FRegister a; | |
ef0d8ffc NC |
10834 | unsigned rn = INSTR (9, 5); |
10835 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10836 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); |
10837 | ||
10838 | if (wb != Post) | |
10839 | address += offset; | |
10840 | ||
10841 | aarch64_get_FP_long_double (cpu, st, & a); | |
10842 | aarch64_set_mem_long_double (cpu, address, a); | |
10843 | ||
10844 | if (wb == Post) | |
10845 | address += offset; | |
10846 | ||
10847 | if (wb != NoWriteBack) | |
10848 | aarch64_set_reg_u64 (cpu, rn, SP_OK, address); | |
10849 | } | |
10850 | ||
10851 | /* 128 bit store scaled or unscaled zero- | |
10852 | or sign-extended 32-bit register offset. */ | |
10853 | static void | |
10854 | fstrq_scale_ext (sim_cpu *cpu, Scaling scaling, Extension extension) | |
10855 | { | |
ef0d8ffc NC |
10856 | unsigned rm = INSTR (20, 16); |
10857 | unsigned rn = INSTR (9, 5); | |
10858 | unsigned st = INSTR (4, 0); | |
2e8cf49e NC |
10859 | |
10860 | uint64_t address = aarch64_get_reg_u64 (cpu, rn, SP_OK); | |
10861 | int64_t extended = extend (aarch64_get_reg_u32 (cpu, rm, NO_SP), | |
10862 | extension); | |
10863 | uint64_t displacement = OPT_SCALE (extended, 128, scaling); | |
10864 | ||
10865 | FRegister a; | |
10866 | ||
10867 | aarch64_get_FP_long_double (cpu, st, & a); | |
10868 | aarch64_set_mem_long_double (cpu, address + displacement, a); | |
10869 | } | |
10870 | ||
10871 | static void | |
10872 | dexLoadImmediatePrePost (sim_cpu *cpu) | |
10873 | { | |
ef0d8ffc NC |
10874 | /* instr[31,30] = size |
10875 | instr[29,27] = 111 | |
10876 | instr[26] = V | |
10877 | instr[25,24] = 00 | |
2e8cf49e | 10878 | instr[23,22] = opc |
ef0d8ffc | 10879 | instr[21] = 0 |
2e8cf49e | 10880 | instr[20,12] = simm9 |
ef0d8ffc NC |
10881 | instr[11] = wb : 0 ==> Post, 1 ==> Pre |
10882 | instr[10] = 0 | |
10883 | instr[9,5] = Rn may be SP. | |
10884 | instr[4,0] = Rt */ | |
10885 | ||
10886 | uint32_t V = INSTR (26, 26); | |
10887 | uint32_t dispatch = ((INSTR (31, 30) << 2) | INSTR (23, 22)); | |
10888 | int32_t imm = simm32 (aarch64_get_instr (cpu), 20, 12); | |
10889 | WriteBack wb = INSTR (11, 11); | |
2e8cf49e NC |
10890 | |
10891 | if (!V) | |
10892 | { | |
10893 | /* GReg operations. */ | |
10894 | switch (dispatch) | |
10895 | { | |
10896 | case 0: strb_wb (cpu, imm, wb); return; | |
10897 | case 1: ldrb32_wb (cpu, imm, wb); return; | |
10898 | case 2: ldrsb_wb (cpu, imm, wb); return; | |
10899 | case 3: ldrsb32_wb (cpu, imm, wb); return; | |
10900 | case 4: strh_wb (cpu, imm, wb); return; | |
10901 | case 5: ldrh32_wb (cpu, imm, wb); return; | |
10902 | case 6: ldrsh64_wb (cpu, imm, wb); return; | |
10903 | case 7: ldrsh32_wb (cpu, imm, wb); return; | |
10904 | case 8: str32_wb (cpu, imm, wb); return; | |
10905 | case 9: ldr32_wb (cpu, imm, wb); return; | |
10906 | case 10: ldrsw_wb (cpu, imm, wb); return; | |
10907 | case 12: str_wb (cpu, imm, wb); return; | |
10908 | case 13: ldr_wb (cpu, imm, wb); return; | |
10909 | ||
10910 | default: | |
10911 | case 11: | |
10912 | case 14: | |
10913 | case 15: | |
10914 | HALT_UNALLOC; | |
10915 | } | |
10916 | } | |
10917 | ||
10918 | /* FReg operations. */ | |
10919 | switch (dispatch) | |
10920 | { | |
10921 | case 2: fstrq_wb (cpu, imm, wb); return; | |
10922 | case 3: fldrq_wb (cpu, imm, wb); return; | |
10923 | case 8: fstrs_wb (cpu, imm, wb); return; | |
10924 | case 9: fldrs_wb (cpu, imm, wb); return; | |
10925 | case 12: fstrd_wb (cpu, imm, wb); return; | |
10926 | case 13: fldrd_wb (cpu, imm, wb); return; | |
10927 | ||
10928 | case 0: /* STUR 8 bit FP. */ | |
10929 | case 1: /* LDUR 8 bit FP. */ | |
10930 | case 4: /* STUR 16 bit FP. */ | |
10931 | case 5: /* LDUR 8 bit FP. */ | |
10932 | HALT_NYI; | |
10933 | ||
10934 | default: | |
10935 | case 6: | |
10936 | case 7: | |
10937 | case 10: | |
10938 | case 11: | |
10939 | case 14: | |
10940 | case 15: | |
10941 | HALT_UNALLOC; | |
10942 | } | |
10943 | } | |
10944 | ||
10945 | static void | |
10946 | dexLoadRegisterOffset (sim_cpu *cpu) | |
10947 | { | |
10948 | /* instr[31,30] = size | |
10949 | instr[29,27] = 111 | |
10950 | instr[26] = V | |
10951 | instr[25,24] = 00 | |
10952 | instr[23,22] = opc | |
10953 | instr[21] = 1 | |
10954 | instr[20,16] = rm | |
10955 | instr[15,13] = option : 010 ==> UXTW, 011 ==> UXTX/LSL, | |
10956 | 110 ==> SXTW, 111 ==> SXTX, | |
10957 | ow ==> RESERVED | |
10958 | instr[12] = scaled | |
10959 | instr[11,10] = 10 | |
10960 | instr[9,5] = rn | |
10961 | instr[4,0] = rt. */ | |
10962 | ||
ef0d8ffc NC |
10963 | uint32_t V = INSTR (26, 26); |
10964 | uint32_t dispatch = ((INSTR (31, 30) << 2) | INSTR (23, 22)); | |
10965 | Scaling scale = INSTR (12, 12); | |
10966 | Extension extensionType = INSTR (15, 13); | |
2e8cf49e NC |
10967 | |
10968 | /* Check for illegal extension types. */ | |
10969 | if (uimm (extensionType, 1, 1) == 0) | |
10970 | HALT_UNALLOC; | |
10971 | ||
10972 | if (extensionType == UXTX || extensionType == SXTX) | |
10973 | extensionType = NoExtension; | |
10974 | ||
10975 | if (!V) | |
10976 | { | |
10977 | /* GReg operations. */ | |
10978 | switch (dispatch) | |
10979 | { | |
10980 | case 0: strb_scale_ext (cpu, scale, extensionType); return; | |
10981 | case 1: ldrb32_scale_ext (cpu, scale, extensionType); return; | |
10982 | case 2: ldrsb_scale_ext (cpu, scale, extensionType); return; | |
10983 | case 3: ldrsb32_scale_ext (cpu, scale, extensionType); return; | |
10984 | case 4: strh_scale_ext (cpu, scale, extensionType); return; | |
10985 | case 5: ldrh32_scale_ext (cpu, scale, extensionType); return; | |
10986 | case 6: ldrsh_scale_ext (cpu, scale, extensionType); return; | |
10987 | case 7: ldrsh32_scale_ext (cpu, scale, extensionType); return; | |
10988 | case 8: str32_scale_ext (cpu, scale, extensionType); return; | |
10989 | case 9: ldr32_scale_ext (cpu, scale, extensionType); return; | |
10990 | case 10: ldrsw_scale_ext (cpu, scale, extensionType); return; | |
10991 | case 12: str_scale_ext (cpu, scale, extensionType); return; | |
10992 | case 13: ldr_scale_ext (cpu, scale, extensionType); return; | |
10993 | case 14: prfm_scale_ext (cpu, scale, extensionType); return; | |
10994 | ||
10995 | default: | |
10996 | case 11: | |
10997 | case 15: | |
10998 | HALT_UNALLOC; | |
10999 | } | |
11000 | } | |
11001 | ||
11002 | /* FReg operations. */ | |
11003 | switch (dispatch) | |
11004 | { | |
11005 | case 1: /* LDUR 8 bit FP. */ | |
11006 | HALT_NYI; | |
11007 | case 3: fldrq_scale_ext (cpu, scale, extensionType); return; | |
11008 | case 5: /* LDUR 8 bit FP. */ | |
11009 | HALT_NYI; | |
11010 | case 9: fldrs_scale_ext (cpu, scale, extensionType); return; | |
11011 | case 13: fldrd_scale_ext (cpu, scale, extensionType); return; | |
11012 | ||
11013 | case 0: fstrb_scale_ext (cpu, scale, extensionType); return; | |
11014 | case 2: fstrq_scale_ext (cpu, scale, extensionType); return; | |
11015 | case 4: fstrh_scale_ext (cpu, scale, extensionType); return; | |
11016 | case 8: fstrs_scale_ext (cpu, scale, extensionType); return; | |
11017 | case 12: fstrd_scale_ext (cpu, scale, extensionType); return; | |
11018 | ||
11019 | default: | |
11020 | case 6: | |
11021 | case 7: | |
11022 | case 10: | |
11023 | case 11: | |
11024 | case 14: | |
11025 | case 15: | |
11026 | HALT_UNALLOC; | |
11027 | } | |
11028 | } | |
11029 | ||
11030 | static void | |
11031 | dexLoadUnsignedImmediate (sim_cpu *cpu) | |
11032 | { | |
5ab6d79e | 11033 | /* instr[29,24] == 111_01 |
2e8cf49e | 11034 | instr[31,30] = size |
5ab6d79e | 11035 | instr[26] = V |
2e8cf49e NC |
11036 | instr[23,22] = opc |
11037 | instr[21,10] = uimm12 : unsigned immediate offset | |
5ab6d79e NC |
11038 | instr[9,5] = rn may be SP. |
11039 | instr[4,0] = rt. */ | |
ef0d8ffc NC |
11040 | |
11041 | uint32_t V = INSTR (26,26); | |
7517e550 | 11042 | uint32_t dispatch = ((INSTR (31, 30) << 2) | INSTR (23, 22)); |
ef0d8ffc | 11043 | uint32_t imm = INSTR (21, 10); |
2e8cf49e NC |
11044 | |
11045 | if (!V) | |
11046 | { | |
11047 | /* GReg operations. */ | |
11048 | switch (dispatch) | |
11049 | { | |
11050 | case 0: strb_abs (cpu, imm); return; | |
11051 | case 1: ldrb32_abs (cpu, imm); return; | |
11052 | case 2: ldrsb_abs (cpu, imm); return; | |
11053 | case 3: ldrsb32_abs (cpu, imm); return; | |
11054 | case 4: strh_abs (cpu, imm); return; | |
11055 | case 5: ldrh32_abs (cpu, imm); return; | |
11056 | case 6: ldrsh_abs (cpu, imm); return; | |
11057 | case 7: ldrsh32_abs (cpu, imm); return; | |
11058 | case 8: str32_abs (cpu, imm); return; | |
11059 | case 9: ldr32_abs (cpu, imm); return; | |
11060 | case 10: ldrsw_abs (cpu, imm); return; | |
11061 | case 12: str_abs (cpu, imm); return; | |
11062 | case 13: ldr_abs (cpu, imm); return; | |
11063 | case 14: prfm_abs (cpu, imm); return; | |
11064 | ||
11065 | default: | |
11066 | case 11: | |
11067 | case 15: | |
11068 | HALT_UNALLOC; | |
11069 | } | |
11070 | } | |
11071 | ||
11072 | /* FReg operations. */ | |
11073 | switch (dispatch) | |
11074 | { | |
2e8cf49e | 11075 | case 0: fstrb_abs (cpu, imm); return; |
2e8cf49e NC |
11076 | case 4: fstrh_abs (cpu, imm); return; |
11077 | case 8: fstrs_abs (cpu, imm); return; | |
11078 | case 12: fstrd_abs (cpu, imm); return; | |
5ab6d79e | 11079 | case 2: fstrq_abs (cpu, imm); return; |
2e8cf49e | 11080 | |
5ab6d79e NC |
11081 | case 1: fldrb_abs (cpu, imm); return; |
11082 | case 5: fldrh_abs (cpu, imm); return; | |
11083 | case 9: fldrs_abs (cpu, imm); return; | |
11084 | case 13: fldrd_abs (cpu, imm); return; | |
11085 | case 3: fldrq_abs (cpu, imm); return; | |
2e8cf49e NC |
11086 | |
11087 | default: | |
11088 | case 6: | |
11089 | case 7: | |
11090 | case 10: | |
11091 | case 11: | |
11092 | case 14: | |
11093 | case 15: | |
11094 | HALT_UNALLOC; | |
11095 | } | |
11096 | } | |
11097 | ||
11098 | static void | |
11099 | dexLoadExclusive (sim_cpu *cpu) | |
11100 | { | |
11101 | /* assert instr[29:24] = 001000; | |
11102 | instr[31,30] = size | |
11103 | instr[23] = 0 if exclusive | |
11104 | instr[22] = L : 1 if load, 0 if store | |
11105 | instr[21] = 1 if pair | |
11106 | instr[20,16] = Rs | |
11107 | instr[15] = o0 : 1 if ordered | |
11108 | instr[14,10] = Rt2 | |
11109 | instr[9,5] = Rn | |
11110 | instr[4.0] = Rt. */ | |
11111 | ||
ef0d8ffc | 11112 | switch (INSTR (22, 21)) |
2e8cf49e NC |
11113 | { |
11114 | case 2: ldxr (cpu); return; | |
11115 | case 0: stxr (cpu); return; | |
11116 | default: HALT_NYI; | |
11117 | } | |
11118 | } | |
11119 | ||
11120 | static void | |
11121 | dexLoadOther (sim_cpu *cpu) | |
11122 | { | |
11123 | uint32_t dispatch; | |
11124 | ||
11125 | /* instr[29,25] = 111_0 | |
11126 | instr[24] == 0 ==> dispatch, 1 ==> ldst reg unsigned immediate | |
11127 | instr[21:11,10] is the secondary dispatch. */ | |
ef0d8ffc | 11128 | if (INSTR (24, 24)) |
2e8cf49e NC |
11129 | { |
11130 | dexLoadUnsignedImmediate (cpu); | |
11131 | return; | |
11132 | } | |
11133 | ||
7517e550 | 11134 | dispatch = ((INSTR (21, 21) << 2) | INSTR (11, 10)); |
2e8cf49e NC |
11135 | switch (dispatch) |
11136 | { | |
11137 | case 0: dexLoadUnscaledImmediate (cpu); return; | |
11138 | case 1: dexLoadImmediatePrePost (cpu); return; | |
11139 | case 3: dexLoadImmediatePrePost (cpu); return; | |
11140 | case 6: dexLoadRegisterOffset (cpu); return; | |
11141 | ||
11142 | default: | |
11143 | case 2: | |
11144 | case 4: | |
11145 | case 5: | |
11146 | case 7: | |
11147 | HALT_NYI; | |
11148 | } | |
11149 | } | |
11150 | ||
11151 | static void | |
11152 | store_pair_u32 (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11153 | { | |
ef0d8ffc NC |
11154 | unsigned rn = INSTR (14, 10); |
11155 | unsigned rd = INSTR (9, 5); | |
11156 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11157 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11158 | ||
11159 | if ((rn == rd || rm == rd) && wb != NoWriteBack) | |
11160 | HALT_UNALLOC; /* ??? */ | |
11161 | ||
11162 | offset <<= 2; | |
11163 | ||
11164 | if (wb != Post) | |
11165 | address += offset; | |
11166 | ||
11167 | aarch64_set_mem_u32 (cpu, address, | |
11168 | aarch64_get_reg_u32 (cpu, rm, NO_SP)); | |
11169 | aarch64_set_mem_u32 (cpu, address + 4, | |
11170 | aarch64_get_reg_u32 (cpu, rn, NO_SP)); | |
11171 | ||
11172 | if (wb == Post) | |
11173 | address += offset; | |
11174 | ||
11175 | if (wb != NoWriteBack) | |
11176 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11177 | } | |
11178 | ||
11179 | static void | |
11180 | store_pair_u64 (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11181 | { | |
ef0d8ffc NC |
11182 | unsigned rn = INSTR (14, 10); |
11183 | unsigned rd = INSTR (9, 5); | |
11184 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11185 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11186 | ||
11187 | if ((rn == rd || rm == rd) && wb != NoWriteBack) | |
11188 | HALT_UNALLOC; /* ??? */ | |
11189 | ||
11190 | offset <<= 3; | |
11191 | ||
11192 | if (wb != Post) | |
11193 | address += offset; | |
11194 | ||
11195 | aarch64_set_mem_u64 (cpu, address, | |
7517e550 | 11196 | aarch64_get_reg_u64 (cpu, rm, NO_SP)); |
2e8cf49e | 11197 | aarch64_set_mem_u64 (cpu, address + 8, |
7517e550 | 11198 | aarch64_get_reg_u64 (cpu, rn, NO_SP)); |
2e8cf49e NC |
11199 | |
11200 | if (wb == Post) | |
11201 | address += offset; | |
11202 | ||
11203 | if (wb != NoWriteBack) | |
11204 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11205 | } | |
11206 | ||
11207 | static void | |
11208 | load_pair_u32 (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11209 | { | |
ef0d8ffc NC |
11210 | unsigned rn = INSTR (14, 10); |
11211 | unsigned rd = INSTR (9, 5); | |
11212 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11213 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11214 | ||
7517e550 | 11215 | /* Treat this as unalloc to make sure we don't do it. */ |
2e8cf49e NC |
11216 | if (rn == rm) |
11217 | HALT_UNALLOC; | |
11218 | ||
11219 | offset <<= 2; | |
11220 | ||
11221 | if (wb != Post) | |
11222 | address += offset; | |
11223 | ||
11224 | aarch64_set_reg_u64 (cpu, rm, SP_OK, aarch64_get_mem_u32 (cpu, address)); | |
11225 | aarch64_set_reg_u64 (cpu, rn, SP_OK, aarch64_get_mem_u32 (cpu, address + 4)); | |
11226 | ||
11227 | if (wb == Post) | |
11228 | address += offset; | |
11229 | ||
11230 | if (wb != NoWriteBack) | |
11231 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11232 | } | |
11233 | ||
11234 | static void | |
11235 | load_pair_s32 (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11236 | { | |
ef0d8ffc NC |
11237 | unsigned rn = INSTR (14, 10); |
11238 | unsigned rd = INSTR (9, 5); | |
11239 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11240 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11241 | ||
11242 | /* Treat this as unalloc to make sure we don't do it. */ | |
11243 | if (rn == rm) | |
11244 | HALT_UNALLOC; | |
11245 | ||
11246 | offset <<= 2; | |
11247 | ||
11248 | if (wb != Post) | |
11249 | address += offset; | |
11250 | ||
11251 | aarch64_set_reg_s64 (cpu, rm, SP_OK, aarch64_get_mem_s32 (cpu, address)); | |
11252 | aarch64_set_reg_s64 (cpu, rn, SP_OK, aarch64_get_mem_s32 (cpu, address + 4)); | |
11253 | ||
11254 | if (wb == Post) | |
11255 | address += offset; | |
11256 | ||
11257 | if (wb != NoWriteBack) | |
11258 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11259 | } | |
11260 | ||
11261 | static void | |
11262 | load_pair_u64 (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11263 | { | |
ef0d8ffc NC |
11264 | unsigned rn = INSTR (14, 10); |
11265 | unsigned rd = INSTR (9, 5); | |
11266 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11267 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11268 | ||
11269 | /* Treat this as unalloc to make sure we don't do it. */ | |
11270 | if (rn == rm) | |
11271 | HALT_UNALLOC; | |
11272 | ||
11273 | offset <<= 3; | |
11274 | ||
11275 | if (wb != Post) | |
11276 | address += offset; | |
11277 | ||
11278 | aarch64_set_reg_u64 (cpu, rm, SP_OK, aarch64_get_mem_u64 (cpu, address)); | |
11279 | aarch64_set_reg_u64 (cpu, rn, SP_OK, aarch64_get_mem_u64 (cpu, address + 8)); | |
11280 | ||
11281 | if (wb == Post) | |
11282 | address += offset; | |
11283 | ||
11284 | if (wb != NoWriteBack) | |
11285 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11286 | } | |
11287 | ||
11288 | static void | |
11289 | dex_load_store_pair_gr (sim_cpu *cpu) | |
11290 | { | |
11291 | /* instr[31,30] = size (10=> 64-bit, 01=> signed 32-bit, 00=> 32-bit) | |
11292 | instr[29,25] = instruction encoding: 101_0 | |
11293 | instr[26] = V : 1 if fp 0 if gp | |
11294 | instr[24,23] = addressing mode (10=> offset, 01=> post, 11=> pre) | |
11295 | instr[22] = load/store (1=> load) | |
11296 | instr[21,15] = signed, scaled, offset | |
11297 | instr[14,10] = Rn | |
11298 | instr[ 9, 5] = Rd | |
11299 | instr[ 4, 0] = Rm. */ | |
11300 | ||
7517e550 | 11301 | uint32_t dispatch = ((INSTR (31, 30) << 3) | INSTR (24, 22)); |
2e8cf49e NC |
11302 | int32_t offset = simm32 (aarch64_get_instr (cpu), 21, 15); |
11303 | ||
11304 | switch (dispatch) | |
11305 | { | |
11306 | case 2: store_pair_u32 (cpu, offset, Post); return; | |
11307 | case 3: load_pair_u32 (cpu, offset, Post); return; | |
11308 | case 4: store_pair_u32 (cpu, offset, NoWriteBack); return; | |
11309 | case 5: load_pair_u32 (cpu, offset, NoWriteBack); return; | |
11310 | case 6: store_pair_u32 (cpu, offset, Pre); return; | |
11311 | case 7: load_pair_u32 (cpu, offset, Pre); return; | |
11312 | ||
11313 | case 11: load_pair_s32 (cpu, offset, Post); return; | |
11314 | case 13: load_pair_s32 (cpu, offset, NoWriteBack); return; | |
11315 | case 15: load_pair_s32 (cpu, offset, Pre); return; | |
11316 | ||
11317 | case 18: store_pair_u64 (cpu, offset, Post); return; | |
11318 | case 19: load_pair_u64 (cpu, offset, Post); return; | |
11319 | case 20: store_pair_u64 (cpu, offset, NoWriteBack); return; | |
11320 | case 21: load_pair_u64 (cpu, offset, NoWriteBack); return; | |
11321 | case 22: store_pair_u64 (cpu, offset, Pre); return; | |
11322 | case 23: load_pair_u64 (cpu, offset, Pre); return; | |
11323 | ||
11324 | default: | |
11325 | HALT_UNALLOC; | |
11326 | } | |
11327 | } | |
11328 | ||
11329 | static void | |
11330 | store_pair_float (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11331 | { | |
ef0d8ffc NC |
11332 | unsigned rn = INSTR (14, 10); |
11333 | unsigned rd = INSTR (9, 5); | |
11334 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11335 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11336 | ||
11337 | offset <<= 2; | |
11338 | ||
11339 | if (wb != Post) | |
11340 | address += offset; | |
11341 | ||
e101a78b NC |
11342 | aarch64_set_mem_u32 (cpu, address, aarch64_get_vec_u32 (cpu, rm, 0)); |
11343 | aarch64_set_mem_u32 (cpu, address + 4, aarch64_get_vec_u32 (cpu, rn, 0)); | |
2e8cf49e NC |
11344 | |
11345 | if (wb == Post) | |
11346 | address += offset; | |
11347 | ||
11348 | if (wb != NoWriteBack) | |
11349 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11350 | } | |
11351 | ||
11352 | static void | |
11353 | store_pair_double (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11354 | { | |
ef0d8ffc NC |
11355 | unsigned rn = INSTR (14, 10); |
11356 | unsigned rd = INSTR (9, 5); | |
11357 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11358 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11359 | ||
11360 | offset <<= 3; | |
11361 | ||
11362 | if (wb != Post) | |
11363 | address += offset; | |
11364 | ||
e101a78b NC |
11365 | aarch64_set_mem_u64 (cpu, address, aarch64_get_vec_u64 (cpu, rm, 0)); |
11366 | aarch64_set_mem_u64 (cpu, address + 8, aarch64_get_vec_u64 (cpu, rn, 0)); | |
2e8cf49e NC |
11367 | |
11368 | if (wb == Post) | |
11369 | address += offset; | |
11370 | ||
11371 | if (wb != NoWriteBack) | |
11372 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11373 | } | |
11374 | ||
11375 | static void | |
11376 | store_pair_long_double (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11377 | { | |
11378 | FRegister a; | |
ef0d8ffc NC |
11379 | unsigned rn = INSTR (14, 10); |
11380 | unsigned rd = INSTR (9, 5); | |
11381 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11382 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11383 | ||
11384 | offset <<= 4; | |
11385 | ||
11386 | if (wb != Post) | |
11387 | address += offset; | |
11388 | ||
11389 | aarch64_get_FP_long_double (cpu, rm, & a); | |
11390 | aarch64_set_mem_long_double (cpu, address, a); | |
11391 | aarch64_get_FP_long_double (cpu, rn, & a); | |
11392 | aarch64_set_mem_long_double (cpu, address + 16, a); | |
11393 | ||
11394 | if (wb == Post) | |
11395 | address += offset; | |
11396 | ||
11397 | if (wb != NoWriteBack) | |
11398 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11399 | } | |
11400 | ||
11401 | static void | |
11402 | load_pair_float (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11403 | { | |
ef0d8ffc NC |
11404 | unsigned rn = INSTR (14, 10); |
11405 | unsigned rd = INSTR (9, 5); | |
11406 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11407 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11408 | ||
11409 | if (rm == rn) | |
11410 | HALT_UNALLOC; | |
11411 | ||
11412 | offset <<= 2; | |
11413 | ||
11414 | if (wb != Post) | |
11415 | address += offset; | |
11416 | ||
e101a78b NC |
11417 | aarch64_set_vec_u32 (cpu, rm, 0, aarch64_get_mem_u32 (cpu, address)); |
11418 | aarch64_set_vec_u32 (cpu, rn, 0, aarch64_get_mem_u32 (cpu, address + 4)); | |
2e8cf49e NC |
11419 | |
11420 | if (wb == Post) | |
11421 | address += offset; | |
11422 | ||
11423 | if (wb != NoWriteBack) | |
11424 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11425 | } | |
11426 | ||
11427 | static void | |
11428 | load_pair_double (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11429 | { | |
ef0d8ffc NC |
11430 | unsigned rn = INSTR (14, 10); |
11431 | unsigned rd = INSTR (9, 5); | |
11432 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11433 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11434 | ||
11435 | if (rm == rn) | |
11436 | HALT_UNALLOC; | |
11437 | ||
11438 | offset <<= 3; | |
11439 | ||
11440 | if (wb != Post) | |
11441 | address += offset; | |
11442 | ||
e101a78b NC |
11443 | aarch64_set_vec_u64 (cpu, rm, 0, aarch64_get_mem_u64 (cpu, address)); |
11444 | aarch64_set_vec_u64 (cpu, rn, 0, aarch64_get_mem_u64 (cpu, address + 8)); | |
2e8cf49e NC |
11445 | |
11446 | if (wb == Post) | |
11447 | address += offset; | |
11448 | ||
11449 | if (wb != NoWriteBack) | |
11450 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11451 | } | |
11452 | ||
11453 | static void | |
11454 | load_pair_long_double (sim_cpu *cpu, int32_t offset, WriteBack wb) | |
11455 | { | |
11456 | FRegister a; | |
ef0d8ffc NC |
11457 | unsigned rn = INSTR (14, 10); |
11458 | unsigned rd = INSTR (9, 5); | |
11459 | unsigned rm = INSTR (4, 0); | |
2e8cf49e NC |
11460 | uint64_t address = aarch64_get_reg_u64 (cpu, rd, SP_OK); |
11461 | ||
11462 | if (rm == rn) | |
11463 | HALT_UNALLOC; | |
11464 | ||
11465 | offset <<= 4; | |
11466 | ||
11467 | if (wb != Post) | |
11468 | address += offset; | |
11469 | ||
11470 | aarch64_get_mem_long_double (cpu, address, & a); | |
11471 | aarch64_set_FP_long_double (cpu, rm, a); | |
11472 | aarch64_get_mem_long_double (cpu, address + 16, & a); | |
11473 | aarch64_set_FP_long_double (cpu, rn, a); | |
11474 | ||
11475 | if (wb == Post) | |
11476 | address += offset; | |
11477 | ||
11478 | if (wb != NoWriteBack) | |
11479 | aarch64_set_reg_u64 (cpu, rd, SP_OK, address); | |
11480 | } | |
11481 | ||
11482 | static void | |
11483 | dex_load_store_pair_fp (sim_cpu *cpu) | |
11484 | { | |
11485 | /* instr[31,30] = size (10=> 128-bit, 01=> 64-bit, 00=> 32-bit) | |
11486 | instr[29,25] = instruction encoding | |
11487 | instr[24,23] = addressing mode (10=> offset, 01=> post, 11=> pre) | |
11488 | instr[22] = load/store (1=> load) | |
11489 | instr[21,15] = signed, scaled, offset | |
11490 | instr[14,10] = Rn | |
11491 | instr[ 9, 5] = Rd | |
11492 | instr[ 4, 0] = Rm */ | |
11493 | ||
7517e550 | 11494 | uint32_t dispatch = ((INSTR (31, 30) << 3) | INSTR (24, 22)); |
2e8cf49e NC |
11495 | int32_t offset = simm32 (aarch64_get_instr (cpu), 21, 15); |
11496 | ||
11497 | switch (dispatch) | |
11498 | { | |
11499 | case 2: store_pair_float (cpu, offset, Post); return; | |
11500 | case 3: load_pair_float (cpu, offset, Post); return; | |
11501 | case 4: store_pair_float (cpu, offset, NoWriteBack); return; | |
11502 | case 5: load_pair_float (cpu, offset, NoWriteBack); return; | |
11503 | case 6: store_pair_float (cpu, offset, Pre); return; | |
11504 | case 7: load_pair_float (cpu, offset, Pre); return; | |
11505 | ||
11506 | case 10: store_pair_double (cpu, offset, Post); return; | |
11507 | case 11: load_pair_double (cpu, offset, Post); return; | |
11508 | case 12: store_pair_double (cpu, offset, NoWriteBack); return; | |
11509 | case 13: load_pair_double (cpu, offset, NoWriteBack); return; | |
11510 | case 14: store_pair_double (cpu, offset, Pre); return; | |
11511 | case 15: load_pair_double (cpu, offset, Pre); return; | |
11512 | ||
11513 | case 18: store_pair_long_double (cpu, offset, Post); return; | |
11514 | case 19: load_pair_long_double (cpu, offset, Post); return; | |
11515 | case 20: store_pair_long_double (cpu, offset, NoWriteBack); return; | |
11516 | case 21: load_pair_long_double (cpu, offset, NoWriteBack); return; | |
11517 | case 22: store_pair_long_double (cpu, offset, Pre); return; | |
11518 | case 23: load_pair_long_double (cpu, offset, Pre); return; | |
11519 | ||
11520 | default: | |
11521 | HALT_UNALLOC; | |
11522 | } | |
11523 | } | |
11524 | ||
11525 | static inline unsigned | |
11526 | vec_reg (unsigned v, unsigned o) | |
11527 | { | |
11528 | return (v + o) & 0x3F; | |
11529 | } | |
11530 | ||
bf155438 | 11531 | /* Load multiple N-element structures to M consecutive registers. */ |
2e8cf49e | 11532 | static void |
bf155438 | 11533 | vec_load (sim_cpu *cpu, uint64_t address, unsigned N, unsigned M) |
2e8cf49e | 11534 | { |
ef0d8ffc NC |
11535 | int all = INSTR (30, 30); |
11536 | unsigned size = INSTR (11, 10); | |
11537 | unsigned vd = INSTR (4, 0); | |
bf155438 JW |
11538 | unsigned rpt = (N == M) ? 1 : M; |
11539 | unsigned selem = N; | |
11540 | unsigned i, j, k; | |
2e8cf49e NC |
11541 | |
11542 | switch (size) | |
11543 | { | |
11544 | case 0: /* 8-bit operations. */ | |
bf155438 JW |
11545 | for (i = 0; i < rpt; i++) |
11546 | for (j = 0; j < (8 + (8 * all)); j++) | |
11547 | for (k = 0; k < selem; k++) | |
11548 | { | |
11549 | aarch64_set_vec_u8 (cpu, vec_reg (vd, i + k), j, | |
11550 | aarch64_get_mem_u8 (cpu, address)); | |
11551 | address += 1; | |
11552 | } | |
2e8cf49e NC |
11553 | return; |
11554 | ||
11555 | case 1: /* 16-bit operations. */ | |
bf155438 JW |
11556 | for (i = 0; i < rpt; i++) |
11557 | for (j = 0; j < (4 + (4 * all)); j++) | |
11558 | for (k = 0; k < selem; k++) | |
11559 | { | |
11560 | aarch64_set_vec_u16 (cpu, vec_reg (vd, i + k), j, | |
11561 | aarch64_get_mem_u16 (cpu, address)); | |
11562 | address += 2; | |
11563 | } | |
2e8cf49e NC |
11564 | return; |
11565 | ||
11566 | case 2: /* 32-bit operations. */ | |
bf155438 JW |
11567 | for (i = 0; i < rpt; i++) |
11568 | for (j = 0; j < (2 + (2 * all)); j++) | |
11569 | for (k = 0; k < selem; k++) | |
11570 | { | |
11571 | aarch64_set_vec_u32 (cpu, vec_reg (vd, i + k), j, | |
11572 | aarch64_get_mem_u32 (cpu, address)); | |
11573 | address += 4; | |
11574 | } | |
2e8cf49e NC |
11575 | return; |
11576 | ||
11577 | case 3: /* 64-bit operations. */ | |
bf155438 JW |
11578 | for (i = 0; i < rpt; i++) |
11579 | for (j = 0; j < (1 + all); j++) | |
11580 | for (k = 0; k < selem; k++) | |
11581 | { | |
11582 | aarch64_set_vec_u64 (cpu, vec_reg (vd, i + k), j, | |
11583 | aarch64_get_mem_u64 (cpu, address)); | |
11584 | address += 8; | |
11585 | } | |
2e8cf49e | 11586 | return; |
2e8cf49e NC |
11587 | } |
11588 | } | |
11589 | ||
bf155438 | 11590 | /* Load multiple 4-element structures into four consecutive registers. */ |
2e8cf49e NC |
11591 | static void |
11592 | LD4 (sim_cpu *cpu, uint64_t address) | |
11593 | { | |
bf155438 | 11594 | vec_load (cpu, address, 4, 4); |
2e8cf49e NC |
11595 | } |
11596 | ||
bf155438 | 11597 | /* Load multiple 3-element structures into three consecutive registers. */ |
2e8cf49e NC |
11598 | static void |
11599 | LD3 (sim_cpu *cpu, uint64_t address) | |
11600 | { | |
bf155438 | 11601 | vec_load (cpu, address, 3, 3); |
2e8cf49e NC |
11602 | } |
11603 | ||
bf155438 | 11604 | /* Load multiple 2-element structures into two consecutive registers. */ |
2e8cf49e NC |
11605 | static void |
11606 | LD2 (sim_cpu *cpu, uint64_t address) | |
11607 | { | |
bf155438 | 11608 | vec_load (cpu, address, 2, 2); |
2e8cf49e NC |
11609 | } |
11610 | ||
11611 | /* Load multiple 1-element structures into one register. */ | |
11612 | static void | |
11613 | LD1_1 (sim_cpu *cpu, uint64_t address) | |
11614 | { | |
bf155438 | 11615 | vec_load (cpu, address, 1, 1); |
2e8cf49e NC |
11616 | } |
11617 | ||
11618 | /* Load multiple 1-element structures into two registers. */ | |
11619 | static void | |
11620 | LD1_2 (sim_cpu *cpu, uint64_t address) | |
11621 | { | |
bf155438 | 11622 | vec_load (cpu, address, 1, 2); |
2e8cf49e NC |
11623 | } |
11624 | ||
11625 | /* Load multiple 1-element structures into three registers. */ | |
11626 | static void | |
11627 | LD1_3 (sim_cpu *cpu, uint64_t address) | |
11628 | { | |
bf155438 | 11629 | vec_load (cpu, address, 1, 3); |
2e8cf49e NC |
11630 | } |
11631 | ||
11632 | /* Load multiple 1-element structures into four registers. */ | |
11633 | static void | |
11634 | LD1_4 (sim_cpu *cpu, uint64_t address) | |
11635 | { | |
bf155438 | 11636 | vec_load (cpu, address, 1, 4); |
2e8cf49e NC |
11637 | } |
11638 | ||
bf155438 | 11639 | /* Store multiple N-element structures from M consecutive registers. */ |
2e8cf49e | 11640 | static void |
bf155438 | 11641 | vec_store (sim_cpu *cpu, uint64_t address, unsigned N, unsigned M) |
2e8cf49e | 11642 | { |
ef0d8ffc NC |
11643 | int all = INSTR (30, 30); |
11644 | unsigned size = INSTR (11, 10); | |
11645 | unsigned vd = INSTR (4, 0); | |
bf155438 JW |
11646 | unsigned rpt = (N == M) ? 1 : M; |
11647 | unsigned selem = N; | |
11648 | unsigned i, j, k; | |
2e8cf49e NC |
11649 | |
11650 | switch (size) | |
11651 | { | |
11652 | case 0: /* 8-bit operations. */ | |
bf155438 JW |
11653 | for (i = 0; i < rpt; i++) |
11654 | for (j = 0; j < (8 + (8 * all)); j++) | |
11655 | for (k = 0; k < selem; k++) | |
11656 | { | |
11657 | aarch64_set_mem_u8 | |
11658 | (cpu, address, | |
11659 | aarch64_get_vec_u8 (cpu, vec_reg (vd, i + k), j)); | |
11660 | address += 1; | |
11661 | } | |
2e8cf49e NC |
11662 | return; |
11663 | ||
11664 | case 1: /* 16-bit operations. */ | |
bf155438 JW |
11665 | for (i = 0; i < rpt; i++) |
11666 | for (j = 0; j < (4 + (4 * all)); j++) | |
11667 | for (k = 0; k < selem; k++) | |
11668 | { | |
11669 | aarch64_set_mem_u16 | |
11670 | (cpu, address, | |
11671 | aarch64_get_vec_u16 (cpu, vec_reg (vd, i + k), j)); | |
11672 | address += 2; | |
11673 | } | |
2e8cf49e NC |
11674 | return; |
11675 | ||
11676 | case 2: /* 32-bit operations. */ | |
bf155438 JW |
11677 | for (i = 0; i < rpt; i++) |
11678 | for (j = 0; j < (2 + (2 * all)); j++) | |
11679 | for (k = 0; k < selem; k++) | |
11680 | { | |
11681 | aarch64_set_mem_u32 | |
11682 | (cpu, address, | |
11683 | aarch64_get_vec_u32 (cpu, vec_reg (vd, i + k), j)); | |
11684 | address += 4; | |
11685 | } | |
2e8cf49e NC |
11686 | return; |
11687 | ||
11688 | case 3: /* 64-bit operations. */ | |
bf155438 JW |
11689 | for (i = 0; i < rpt; i++) |
11690 | for (j = 0; j < (1 + all); j++) | |
11691 | for (k = 0; k < selem; k++) | |
11692 | { | |
11693 | aarch64_set_mem_u64 | |
11694 | (cpu, address, | |
11695 | aarch64_get_vec_u64 (cpu, vec_reg (vd, i + k), j)); | |
11696 | address += 8; | |
11697 | } | |
2e8cf49e | 11698 | return; |
2e8cf49e NC |
11699 | } |
11700 | } | |
11701 | ||
bf155438 | 11702 | /* Store multiple 4-element structure from four consecutive registers. */ |
2e8cf49e NC |
11703 | static void |
11704 | ST4 (sim_cpu *cpu, uint64_t address) | |
11705 | { | |
bf155438 | 11706 | vec_store (cpu, address, 4, 4); |
2e8cf49e NC |
11707 | } |
11708 | ||
bf155438 | 11709 | /* Store multiple 3-element structures from three consecutive registers. */ |
2e8cf49e NC |
11710 | static void |
11711 | ST3 (sim_cpu *cpu, uint64_t address) | |
11712 | { | |
bf155438 | 11713 | vec_store (cpu, address, 3, 3); |
2e8cf49e NC |
11714 | } |
11715 | ||
bf155438 | 11716 | /* Store multiple 2-element structures from two consecutive registers. */ |
2e8cf49e NC |
11717 | static void |
11718 | ST2 (sim_cpu *cpu, uint64_t address) | |
11719 | { | |
bf155438 | 11720 | vec_store (cpu, address, 2, 2); |
2e8cf49e NC |
11721 | } |
11722 | ||
bf155438 | 11723 | /* Store multiple 1-element structures from one register. */ |
2e8cf49e NC |
11724 | static void |
11725 | ST1_1 (sim_cpu *cpu, uint64_t address) | |
11726 | { | |
bf155438 | 11727 | vec_store (cpu, address, 1, 1); |
2e8cf49e NC |
11728 | } |
11729 | ||
bf155438 | 11730 | /* Store multiple 1-element structures from two registers. */ |
2e8cf49e NC |
11731 | static void |
11732 | ST1_2 (sim_cpu *cpu, uint64_t address) | |
11733 | { | |
bf155438 | 11734 | vec_store (cpu, address, 1, 2); |
2e8cf49e NC |
11735 | } |
11736 | ||
bf155438 | 11737 | /* Store multiple 1-element structures from three registers. */ |
2e8cf49e NC |
11738 | static void |
11739 | ST1_3 (sim_cpu *cpu, uint64_t address) | |
11740 | { | |
bf155438 | 11741 | vec_store (cpu, address, 1, 3); |
2e8cf49e NC |
11742 | } |
11743 | ||
bf155438 | 11744 | /* Store multiple 1-element structures from four registers. */ |
2e8cf49e NC |
11745 | static void |
11746 | ST1_4 (sim_cpu *cpu, uint64_t address) | |
11747 | { | |
bf155438 | 11748 | vec_store (cpu, address, 1, 4); |
2e8cf49e NC |
11749 | } |
11750 | ||
e8f42b5e JW |
11751 | #define LDn_STn_SINGLE_LANE_AND_SIZE() \ |
11752 | do \ | |
11753 | { \ | |
11754 | switch (INSTR (15, 14)) \ | |
11755 | { \ | |
11756 | case 0: \ | |
11757 | lane = (full << 3) | (s << 2) | size; \ | |
11758 | size = 0; \ | |
11759 | break; \ | |
11760 | \ | |
11761 | case 1: \ | |
11762 | if ((size & 1) == 1) \ | |
11763 | HALT_UNALLOC; \ | |
11764 | lane = (full << 2) | (s << 1) | (size >> 1); \ | |
11765 | size = 1; \ | |
11766 | break; \ | |
11767 | \ | |
11768 | case 2: \ | |
11769 | if ((size & 2) == 2) \ | |
11770 | HALT_UNALLOC; \ | |
11771 | \ | |
11772 | if ((size & 1) == 0) \ | |
11773 | { \ | |
11774 | lane = (full << 1) | s; \ | |
11775 | size = 2; \ | |
11776 | } \ | |
11777 | else \ | |
11778 | { \ | |
11779 | if (s) \ | |
11780 | HALT_UNALLOC; \ | |
11781 | lane = full; \ | |
11782 | size = 3; \ | |
11783 | } \ | |
11784 | break; \ | |
11785 | \ | |
11786 | default: \ | |
11787 | HALT_UNALLOC; \ | |
11788 | } \ | |
11789 | } \ | |
11790 | while (0) | |
11791 | ||
11792 | /* Load single structure into one lane of N registers. */ | |
2e8cf49e | 11793 | static void |
e8f42b5e | 11794 | do_vec_LDn_single (sim_cpu *cpu, uint64_t address) |
2e8cf49e NC |
11795 | { |
11796 | /* instr[31] = 0 | |
11797 | instr[30] = element selector 0=>half, 1=>all elements | |
11798 | instr[29,24] = 00 1101 | |
11799 | instr[23] = 0=>simple, 1=>post | |
11800 | instr[22] = 1 | |
e8f42b5e | 11801 | instr[21] = width: LD1-or-LD3 (0) / LD2-or-LD4 (1) |
2e8cf49e NC |
11802 | instr[20,16] = 0 0000 (simple), Vinc (reg-post-inc, no SP), |
11803 | 11111 (immediate post inc) | |
e8f42b5e JW |
11804 | instr[15,13] = opcode |
11805 | instr[12] = S, used for lane number | |
11806 | instr[11,10] = size, also used for lane number | |
2e8cf49e NC |
11807 | instr[9,5] = address |
11808 | instr[4,0] = Vd */ | |
11809 | ||
ef0d8ffc NC |
11810 | unsigned full = INSTR (30, 30); |
11811 | unsigned vd = INSTR (4, 0); | |
11812 | unsigned size = INSTR (11, 10); | |
e8f42b5e JW |
11813 | unsigned s = INSTR (12, 12); |
11814 | int nregs = ((INSTR (13, 13) << 1) | INSTR (21, 21)) + 1; | |
11815 | int lane = 0; | |
2e8cf49e NC |
11816 | int i; |
11817 | ||
11818 | NYI_assert (29, 24, 0x0D); | |
11819 | NYI_assert (22, 22, 1); | |
2e8cf49e | 11820 | |
e8f42b5e JW |
11821 | /* Compute the lane number first (using size), and then compute size. */ |
11822 | LDn_STn_SINGLE_LANE_AND_SIZE (); | |
2e8cf49e | 11823 | |
e8f42b5e JW |
11824 | for (i = 0; i < nregs; i++) |
11825 | switch (size) | |
11826 | { | |
11827 | case 0: | |
11828 | { | |
11829 | uint8_t val = aarch64_get_mem_u8 (cpu, address + i); | |
11830 | aarch64_set_vec_u8 (cpu, vd + i, lane, val); | |
11831 | break; | |
2e8cf49e | 11832 | } |
2e8cf49e | 11833 | |
e8f42b5e | 11834 | case 1: |
2e8cf49e | 11835 | { |
e8f42b5e JW |
11836 | uint16_t val = aarch64_get_mem_u16 (cpu, address + (i * 2)); |
11837 | aarch64_set_vec_u16 (cpu, vd + i, lane, val); | |
11838 | break; | |
11839 | } | |
2e8cf49e | 11840 | |
e8f42b5e JW |
11841 | case 2: |
11842 | { | |
11843 | uint32_t val = aarch64_get_mem_u32 (cpu, address + (i * 4)); | |
11844 | aarch64_set_vec_u32 (cpu, vd + i, lane, val); | |
11845 | break; | |
11846 | } | |
2e8cf49e | 11847 | |
e8f42b5e JW |
11848 | case 3: |
11849 | { | |
11850 | uint64_t val = aarch64_get_mem_u64 (cpu, address + (i * 8)); | |
11851 | aarch64_set_vec_u64 (cpu, vd + i, lane, val); | |
11852 | break; | |
11853 | } | |
11854 | } | |
11855 | } | |
2e8cf49e | 11856 | |
e8f42b5e JW |
11857 | /* Store single structure from one lane from N registers. */ |
11858 | static void | |
11859 | do_vec_STn_single (sim_cpu *cpu, uint64_t address) | |
11860 | { | |
11861 | /* instr[31] = 0 | |
11862 | instr[30] = element selector 0=>half, 1=>all elements | |
11863 | instr[29,24] = 00 1101 | |
11864 | instr[23] = 0=>simple, 1=>post | |
11865 | instr[22] = 0 | |
11866 | instr[21] = width: LD1-or-LD3 (0) / LD2-or-LD4 (1) | |
11867 | instr[20,16] = 0 0000 (simple), Vinc (reg-post-inc, no SP), | |
11868 | 11111 (immediate post inc) | |
11869 | instr[15,13] = opcode | |
11870 | instr[12] = S, used for lane number | |
11871 | instr[11,10] = size, also used for lane number | |
11872 | instr[9,5] = address | |
11873 | instr[4,0] = Vd */ | |
2e8cf49e | 11874 | |
e8f42b5e JW |
11875 | unsigned full = INSTR (30, 30); |
11876 | unsigned vd = INSTR (4, 0); | |
11877 | unsigned size = INSTR (11, 10); | |
11878 | unsigned s = INSTR (12, 12); | |
11879 | int nregs = ((INSTR (13, 13) << 1) | INSTR (21, 21)) + 1; | |
11880 | int lane = 0; | |
11881 | int i; | |
2e8cf49e | 11882 | |
e8f42b5e JW |
11883 | NYI_assert (29, 24, 0x0D); |
11884 | NYI_assert (22, 22, 0); | |
2e8cf49e | 11885 | |
e8f42b5e JW |
11886 | /* Compute the lane number first (using size), and then compute size. */ |
11887 | LDn_STn_SINGLE_LANE_AND_SIZE (); | |
2e8cf49e | 11888 | |
e8f42b5e JW |
11889 | for (i = 0; i < nregs; i++) |
11890 | switch (size) | |
11891 | { | |
11892 | case 0: | |
11893 | { | |
11894 | uint8_t val = aarch64_get_vec_u8 (cpu, vd + i, lane); | |
11895 | aarch64_set_mem_u8 (cpu, address + i, val); | |
11896 | break; | |
2e8cf49e | 11897 | } |
2e8cf49e | 11898 | |
e8f42b5e | 11899 | case 1: |
2e8cf49e | 11900 | { |
e8f42b5e JW |
11901 | uint16_t val = aarch64_get_vec_u16 (cpu, vd + i, lane); |
11902 | aarch64_set_mem_u16 (cpu, address + (i * 2), val); | |
2e8cf49e | 11903 | break; |
e8f42b5e | 11904 | } |
2e8cf49e | 11905 | |
e8f42b5e JW |
11906 | case 2: |
11907 | { | |
11908 | uint32_t val = aarch64_get_vec_u32 (cpu, vd + i, lane); | |
11909 | aarch64_set_mem_u32 (cpu, address + (i * 4), val); | |
2e8cf49e | 11910 | break; |
e8f42b5e | 11911 | } |
2e8cf49e | 11912 | |
e8f42b5e JW |
11913 | case 3: |
11914 | { | |
11915 | uint64_t val = aarch64_get_vec_u64 (cpu, vd + i, lane); | |
11916 | aarch64_set_mem_u64 (cpu, address + (i * 8), val); | |
2e8cf49e | 11917 | break; |
e8f42b5e JW |
11918 | } |
11919 | } | |
11920 | } | |
2e8cf49e | 11921 | |
e8f42b5e JW |
11922 | /* Load single structure into all lanes of N registers. */ |
11923 | static void | |
11924 | do_vec_LDnR (sim_cpu *cpu, uint64_t address) | |
11925 | { | |
11926 | /* instr[31] = 0 | |
11927 | instr[30] = element selector 0=>half, 1=>all elements | |
11928 | instr[29,24] = 00 1101 | |
11929 | instr[23] = 0=>simple, 1=>post | |
11930 | instr[22] = 1 | |
11931 | instr[21] = width: LD1R-or-LD3R (0) / LD2R-or-LD4R (1) | |
11932 | instr[20,16] = 0 0000 (simple), Vinc (reg-post-inc, no SP), | |
11933 | 11111 (immediate post inc) | |
11934 | instr[15,14] = 11 | |
11935 | instr[13] = width: LD1R-or-LD2R (0) / LD3R-or-LD4R (1) | |
11936 | instr[12] = 0 | |
11937 | instr[11,10] = element size 00=> byte(b), 01=> half(h), | |
11938 | 10=> word(s), 11=> double(d) | |
11939 | instr[9,5] = address | |
11940 | instr[4,0] = Vd */ | |
2e8cf49e | 11941 | |
e8f42b5e JW |
11942 | unsigned full = INSTR (30, 30); |
11943 | unsigned vd = INSTR (4, 0); | |
11944 | unsigned size = INSTR (11, 10); | |
11945 | int nregs = ((INSTR (13, 13) << 1) | INSTR (21, 21)) + 1; | |
11946 | int i, n; | |
2e8cf49e | 11947 | |
e8f42b5e JW |
11948 | NYI_assert (29, 24, 0x0D); |
11949 | NYI_assert (22, 22, 1); | |
11950 | NYI_assert (15, 14, 3); | |
11951 | NYI_assert (12, 12, 0); | |
2e8cf49e | 11952 | |
e8f42b5e JW |
11953 | for (n = 0; n < nregs; n++) |
11954 | switch (size) | |
11955 | { | |
11956 | case 0: | |
2e8cf49e | 11957 | { |
e8f42b5e JW |
11958 | uint8_t val = aarch64_get_mem_u8 (cpu, address + n); |
11959 | for (i = 0; i < (full ? 16 : 8); i++) | |
11960 | aarch64_set_vec_u8 (cpu, vd + n, i, val); | |
2e8cf49e | 11961 | break; |
e8f42b5e | 11962 | } |
2e8cf49e | 11963 | |
e8f42b5e JW |
11964 | case 1: |
11965 | { | |
11966 | uint16_t val = aarch64_get_mem_u16 (cpu, address + (n * 2)); | |
11967 | for (i = 0; i < (full ? 8 : 4); i++) | |
11968 | aarch64_set_vec_u16 (cpu, vd + n, i, val); | |
2e8cf49e | 11969 | break; |
e8f42b5e | 11970 | } |
2e8cf49e | 11971 | |
e8f42b5e JW |
11972 | case 2: |
11973 | { | |
11974 | uint32_t val = aarch64_get_mem_u32 (cpu, address + (n * 4)); | |
11975 | for (i = 0; i < (full ? 4 : 2); i++) | |
11976 | aarch64_set_vec_u32 (cpu, vd + n, i, val); | |
2e8cf49e | 11977 | break; |
e8f42b5e | 11978 | } |
2e8cf49e | 11979 | |
e8f42b5e JW |
11980 | case 3: |
11981 | { | |
11982 | uint64_t val = aarch64_get_mem_u64 (cpu, address + (n * 8)); | |
11983 | for (i = 0; i < (full ? 2 : 1); i++) | |
11984 | aarch64_set_vec_u64 (cpu, vd + n, i, val); | |
2e8cf49e | 11985 | break; |
2e8cf49e | 11986 | } |
2e8cf49e | 11987 | |
e8f42b5e JW |
11988 | default: |
11989 | HALT_UNALLOC; | |
11990 | } | |
2e8cf49e NC |
11991 | } |
11992 | ||
11993 | static void | |
11994 | do_vec_load_store (sim_cpu *cpu) | |
11995 | { | |
11996 | /* {LD|ST}<N> {Vd..Vd+N}, vaddr | |
11997 | ||
11998 | instr[31] = 0 | |
11999 | instr[30] = element selector 0=>half, 1=>all elements | |
12000 | instr[29,25] = 00110 | |
e8f42b5e | 12001 | instr[24] = 0=>multiple struct, 1=>single struct |
2e8cf49e NC |
12002 | instr[23] = 0=>simple, 1=>post |
12003 | instr[22] = 0=>store, 1=>load | |
12004 | instr[21] = 0 (LDn) / small(0)-large(1) selector (LDnR) | |
12005 | instr[20,16] = 00000 (simple), Vinc (reg-post-inc, no SP), | |
12006 | 11111 (immediate post inc) | |
12007 | instr[15,12] = elements and destinations. eg for load: | |
12008 | 0000=>LD4 => load multiple 4-element to | |
12009 | four consecutive registers | |
12010 | 0100=>LD3 => load multiple 3-element to | |
12011 | three consecutive registers | |
12012 | 1000=>LD2 => load multiple 2-element to | |
12013 | two consecutive registers | |
12014 | 0010=>LD1 => load multiple 1-element to | |
12015 | four consecutive registers | |
12016 | 0110=>LD1 => load multiple 1-element to | |
12017 | three consecutive registers | |
12018 | 1010=>LD1 => load multiple 1-element to | |
12019 | two consecutive registers | |
12020 | 0111=>LD1 => load multiple 1-element to | |
12021 | one register | |
12022 | 1100=>LDR1,LDR2 | |
12023 | 1110=>LDR3,LDR4 | |
12024 | instr[11,10] = element size 00=> byte(b), 01=> half(h), | |
12025 | 10=> word(s), 11=> double(d) | |
12026 | instr[9,5] = Vn, can be SP | |
12027 | instr[4,0] = Vd */ | |
12028 | ||
e8f42b5e | 12029 | int single; |
2e8cf49e NC |
12030 | int post; |
12031 | int load; | |
12032 | unsigned vn; | |
12033 | uint64_t address; | |
12034 | int type; | |
12035 | ||
7517e550 | 12036 | if (INSTR (31, 31) != 0 || INSTR (29, 25) != 0x06) |
2e8cf49e NC |
12037 | HALT_NYI; |
12038 | ||
e8f42b5e | 12039 | single = INSTR (24, 24); |
ef0d8ffc NC |
12040 | post = INSTR (23, 23); |
12041 | load = INSTR (22, 22); | |
e8f42b5e | 12042 | type = INSTR (15, 12); |
ef0d8ffc | 12043 | vn = INSTR (9, 5); |
2e8cf49e NC |
12044 | address = aarch64_get_reg_u64 (cpu, vn, SP_OK); |
12045 | ||
e8f42b5e JW |
12046 | if (! single && INSTR (21, 21) != 0) |
12047 | HALT_UNALLOC; | |
12048 | ||
2e8cf49e NC |
12049 | if (post) |
12050 | { | |
ef0d8ffc | 12051 | unsigned vm = INSTR (20, 16); |
2e8cf49e NC |
12052 | |
12053 | if (vm == R31) | |
12054 | { | |
12055 | unsigned sizeof_operation; | |
12056 | ||
e8f42b5e | 12057 | if (single) |
2e8cf49e | 12058 | { |
e8f42b5e JW |
12059 | if ((type >= 0) && (type <= 11)) |
12060 | { | |
12061 | int nregs = ((INSTR (13, 13) << 1) | INSTR (21, 21)) + 1; | |
12062 | switch (INSTR (15, 14)) | |
12063 | { | |
12064 | case 0: | |
12065 | sizeof_operation = nregs * 1; | |
12066 | break; | |
12067 | case 1: | |
12068 | sizeof_operation = nregs * 2; | |
12069 | break; | |
12070 | case 2: | |
12071 | if (INSTR (10, 10) == 0) | |
12072 | sizeof_operation = nregs * 4; | |
12073 | else | |
12074 | sizeof_operation = nregs * 8; | |
12075 | break; | |
12076 | default: | |
12077 | HALT_UNALLOC; | |
12078 | } | |
12079 | } | |
12080 | else if (type == 0xC) | |
12081 | { | |
12082 | sizeof_operation = INSTR (21, 21) ? 2 : 1; | |
12083 | sizeof_operation <<= INSTR (11, 10); | |
12084 | } | |
12085 | else if (type == 0xE) | |
12086 | { | |
12087 | sizeof_operation = INSTR (21, 21) ? 4 : 3; | |
12088 | sizeof_operation <<= INSTR (11, 10); | |
12089 | } | |
12090 | else | |
12091 | HALT_UNALLOC; | |
12092 | } | |
12093 | else | |
12094 | { | |
12095 | switch (type) | |
12096 | { | |
12097 | case 0: sizeof_operation = 32; break; | |
12098 | case 4: sizeof_operation = 24; break; | |
12099 | case 8: sizeof_operation = 16; break; | |
2e8cf49e | 12100 | |
e8f42b5e JW |
12101 | case 7: |
12102 | /* One register, immediate offset variant. */ | |
12103 | sizeof_operation = 8; | |
12104 | break; | |
2e8cf49e | 12105 | |
e8f42b5e JW |
12106 | case 10: |
12107 | /* Two registers, immediate offset variant. */ | |
12108 | sizeof_operation = 16; | |
12109 | break; | |
ef0d8ffc | 12110 | |
e8f42b5e JW |
12111 | case 6: |
12112 | /* Three registers, immediate offset variant. */ | |
12113 | sizeof_operation = 24; | |
12114 | break; | |
57aa1742 | 12115 | |
e8f42b5e JW |
12116 | case 2: |
12117 | /* Four registers, immediate offset variant. */ | |
12118 | sizeof_operation = 32; | |
12119 | break; | |
57aa1742 | 12120 | |
e8f42b5e JW |
12121 | default: |
12122 | HALT_UNALLOC; | |
12123 | } | |
2e8cf49e | 12124 | |
e8f42b5e JW |
12125 | if (INSTR (30, 30)) |
12126 | sizeof_operation *= 2; | |
2e8cf49e NC |
12127 | } |
12128 | ||
2e8cf49e NC |
12129 | aarch64_set_reg_u64 (cpu, vn, SP_OK, address + sizeof_operation); |
12130 | } | |
12131 | else | |
12132 | aarch64_set_reg_u64 (cpu, vn, SP_OK, | |
12133 | address + aarch64_get_reg_u64 (cpu, vm, NO_SP)); | |
12134 | } | |
12135 | else | |
12136 | { | |
12137 | NYI_assert (20, 16, 0); | |
12138 | } | |
12139 | ||
e8f42b5e JW |
12140 | if (single) |
12141 | { | |
12142 | if (load) | |
12143 | { | |
12144 | if ((type >= 0) && (type <= 11)) | |
12145 | do_vec_LDn_single (cpu, address); | |
12146 | else if ((type == 0xC) || (type == 0xE)) | |
12147 | do_vec_LDnR (cpu, address); | |
12148 | else | |
12149 | HALT_UNALLOC; | |
12150 | return; | |
12151 | } | |
12152 | ||
12153 | /* Stores. */ | |
12154 | if ((type >= 0) && (type <= 11)) | |
12155 | { | |
12156 | do_vec_STn_single (cpu, address); | |
12157 | return; | |
12158 | } | |
12159 | ||
12160 | HALT_UNALLOC; | |
12161 | } | |
12162 | ||
2e8cf49e NC |
12163 | if (load) |
12164 | { | |
12165 | switch (type) | |
12166 | { | |
12167 | case 0: LD4 (cpu, address); return; | |
12168 | case 4: LD3 (cpu, address); return; | |
12169 | case 8: LD2 (cpu, address); return; | |
12170 | case 2: LD1_4 (cpu, address); return; | |
12171 | case 6: LD1_3 (cpu, address); return; | |
12172 | case 10: LD1_2 (cpu, address); return; | |
12173 | case 7: LD1_1 (cpu, address); return; | |
12174 | ||
2e8cf49e | 12175 | default: |
e8f42b5e | 12176 | HALT_UNALLOC; |
2e8cf49e NC |
12177 | } |
12178 | } | |
12179 | ||
12180 | /* Stores. */ | |
12181 | switch (type) | |
12182 | { | |
12183 | case 0: ST4 (cpu, address); return; | |
12184 | case 4: ST3 (cpu, address); return; | |
12185 | case 8: ST2 (cpu, address); return; | |
12186 | case 2: ST1_4 (cpu, address); return; | |
12187 | case 6: ST1_3 (cpu, address); return; | |
12188 | case 10: ST1_2 (cpu, address); return; | |
12189 | case 7: ST1_1 (cpu, address); return; | |
12190 | default: | |
e8f42b5e | 12191 | HALT_UNALLOC; |
2e8cf49e NC |
12192 | } |
12193 | } | |
12194 | ||
12195 | static void | |
12196 | dexLdSt (sim_cpu *cpu) | |
12197 | { | |
12198 | /* uint32_t group = dispatchGroup (aarch64_get_instr (cpu)); | |
12199 | assert group == GROUP_LDST_0100 || group == GROUP_LDST_0110 || | |
12200 | group == GROUP_LDST_1100 || group == GROUP_LDST_1110 | |
12201 | bits [29,28:26] of a LS are the secondary dispatch vector. */ | |
12202 | uint32_t group2 = dispatchLS (aarch64_get_instr (cpu)); | |
12203 | ||
12204 | switch (group2) | |
12205 | { | |
12206 | case LS_EXCL_000: | |
12207 | dexLoadExclusive (cpu); return; | |
12208 | ||
12209 | case LS_LIT_010: | |
12210 | case LS_LIT_011: | |
12211 | dexLoadLiteral (cpu); return; | |
12212 | ||
12213 | case LS_OTHER_110: | |
12214 | case LS_OTHER_111: | |
12215 | dexLoadOther (cpu); return; | |
12216 | ||
12217 | case LS_ADVSIMD_001: | |
12218 | do_vec_load_store (cpu); return; | |
12219 | ||
12220 | case LS_PAIR_100: | |
12221 | dex_load_store_pair_gr (cpu); return; | |
12222 | ||
12223 | case LS_PAIR_101: | |
12224 | dex_load_store_pair_fp (cpu); return; | |
12225 | ||
12226 | default: | |
12227 | /* Should never reach here. */ | |
12228 | HALT_NYI; | |
12229 | } | |
12230 | } | |
12231 | ||
12232 | /* Specific decode and execute for group Data Processing Register. */ | |
12233 | ||
12234 | static void | |
12235 | dexLogicalShiftedRegister (sim_cpu *cpu) | |
12236 | { | |
ef0d8ffc NC |
12237 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit |
12238 | instr[30,29] = op | |
12239 | instr[28:24] = 01010 | |
2e8cf49e | 12240 | instr[23,22] = shift : 0 ==> LSL, 1 ==> LSR, 2 ==> ASR, 3 ==> ROR |
ef0d8ffc NC |
12241 | instr[21] = N |
12242 | instr[20,16] = Rm | |
2e8cf49e | 12243 | instr[15,10] = count : must be 0xxxxx for 32 bit |
ef0d8ffc NC |
12244 | instr[9,5] = Rn |
12245 | instr[4,0] = Rd */ | |
2e8cf49e | 12246 | |
ef0d8ffc NC |
12247 | uint32_t size = INSTR (31, 31); |
12248 | Shift shiftType = INSTR (23, 22); | |
12249 | uint32_t count = INSTR (15, 10); | |
2e8cf49e | 12250 | |
ef0d8ffc NC |
12251 | /* 32 bit operations must have count[5] = 0. |
12252 | or else we have an UNALLOC. */ | |
12253 | if (size == 0 && uimm (count, 5, 5)) | |
2e8cf49e NC |
12254 | HALT_UNALLOC; |
12255 | ||
ef0d8ffc NC |
12256 | /* Dispatch on size:op:N. */ |
12257 | switch ((INSTR (31, 29) << 1) | INSTR (21, 21)) | |
2e8cf49e NC |
12258 | { |
12259 | case 0: and32_shift (cpu, shiftType, count); return; | |
12260 | case 1: bic32_shift (cpu, shiftType, count); return; | |
12261 | case 2: orr32_shift (cpu, shiftType, count); return; | |
12262 | case 3: orn32_shift (cpu, shiftType, count); return; | |
12263 | case 4: eor32_shift (cpu, shiftType, count); return; | |
12264 | case 5: eon32_shift (cpu, shiftType, count); return; | |
12265 | case 6: ands32_shift (cpu, shiftType, count); return; | |
12266 | case 7: bics32_shift (cpu, shiftType, count); return; | |
12267 | case 8: and64_shift (cpu, shiftType, count); return; | |
12268 | case 9: bic64_shift (cpu, shiftType, count); return; | |
12269 | case 10:orr64_shift (cpu, shiftType, count); return; | |
12270 | case 11:orn64_shift (cpu, shiftType, count); return; | |
12271 | case 12:eor64_shift (cpu, shiftType, count); return; | |
12272 | case 13:eon64_shift (cpu, shiftType, count); return; | |
12273 | case 14:ands64_shift (cpu, shiftType, count); return; | |
12274 | case 15:bics64_shift (cpu, shiftType, count); return; | |
2e8cf49e NC |
12275 | } |
12276 | } | |
12277 | ||
12278 | /* 32 bit conditional select. */ | |
12279 | static void | |
12280 | csel32 (sim_cpu *cpu, CondCode cc) | |
12281 | { | |
ef0d8ffc NC |
12282 | unsigned rm = INSTR (20, 16); |
12283 | unsigned rn = INSTR (9, 5); | |
12284 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12285 | |
12286 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12287 | testConditionCode (cpu, cc) | |
12288 | ? aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
12289 | : aarch64_get_reg_u32 (cpu, rm, NO_SP)); | |
12290 | } | |
12291 | ||
12292 | /* 64 bit conditional select. */ | |
12293 | static void | |
12294 | csel64 (sim_cpu *cpu, CondCode cc) | |
12295 | { | |
ef0d8ffc NC |
12296 | unsigned rm = INSTR (20, 16); |
12297 | unsigned rn = INSTR (9, 5); | |
12298 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12299 | |
12300 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12301 | testConditionCode (cpu, cc) | |
12302 | ? aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
12303 | : aarch64_get_reg_u64 (cpu, rm, NO_SP)); | |
12304 | } | |
12305 | ||
12306 | /* 32 bit conditional increment. */ | |
12307 | static void | |
12308 | csinc32 (sim_cpu *cpu, CondCode cc) | |
12309 | { | |
ef0d8ffc NC |
12310 | unsigned rm = INSTR (20, 16); |
12311 | unsigned rn = INSTR (9, 5); | |
12312 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12313 | |
12314 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12315 | testConditionCode (cpu, cc) | |
12316 | ? aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
12317 | : aarch64_get_reg_u32 (cpu, rm, NO_SP) + 1); | |
12318 | } | |
12319 | ||
12320 | /* 64 bit conditional increment. */ | |
12321 | static void | |
12322 | csinc64 (sim_cpu *cpu, CondCode cc) | |
12323 | { | |
ef0d8ffc NC |
12324 | unsigned rm = INSTR (20, 16); |
12325 | unsigned rn = INSTR (9, 5); | |
12326 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12327 | |
12328 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12329 | testConditionCode (cpu, cc) | |
12330 | ? aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
12331 | : aarch64_get_reg_u64 (cpu, rm, NO_SP) + 1); | |
12332 | } | |
12333 | ||
12334 | /* 32 bit conditional invert. */ | |
12335 | static void | |
12336 | csinv32 (sim_cpu *cpu, CondCode cc) | |
12337 | { | |
ef0d8ffc NC |
12338 | unsigned rm = INSTR (20, 16); |
12339 | unsigned rn = INSTR (9, 5); | |
12340 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12341 | |
12342 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12343 | testConditionCode (cpu, cc) | |
12344 | ? aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
12345 | : ~ aarch64_get_reg_u32 (cpu, rm, NO_SP)); | |
12346 | } | |
12347 | ||
12348 | /* 64 bit conditional invert. */ | |
12349 | static void | |
12350 | csinv64 (sim_cpu *cpu, CondCode cc) | |
12351 | { | |
ef0d8ffc NC |
12352 | unsigned rm = INSTR (20, 16); |
12353 | unsigned rn = INSTR (9, 5); | |
12354 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12355 | |
12356 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12357 | testConditionCode (cpu, cc) | |
12358 | ? aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
12359 | : ~ aarch64_get_reg_u64 (cpu, rm, NO_SP)); | |
12360 | } | |
12361 | ||
12362 | /* 32 bit conditional negate. */ | |
12363 | static void | |
12364 | csneg32 (sim_cpu *cpu, CondCode cc) | |
12365 | { | |
ef0d8ffc NC |
12366 | unsigned rm = INSTR (20, 16); |
12367 | unsigned rn = INSTR (9, 5); | |
12368 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12369 | |
12370 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12371 | testConditionCode (cpu, cc) | |
12372 | ? aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
12373 | : - aarch64_get_reg_u32 (cpu, rm, NO_SP)); | |
12374 | } | |
12375 | ||
12376 | /* 64 bit conditional negate. */ | |
12377 | static void | |
12378 | csneg64 (sim_cpu *cpu, CondCode cc) | |
12379 | { | |
ef0d8ffc NC |
12380 | unsigned rm = INSTR (20, 16); |
12381 | unsigned rn = INSTR (9, 5); | |
12382 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12383 | |
12384 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12385 | testConditionCode (cpu, cc) | |
12386 | ? aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
12387 | : - aarch64_get_reg_u64 (cpu, rm, NO_SP)); | |
12388 | } | |
12389 | ||
12390 | static void | |
12391 | dexCondSelect (sim_cpu *cpu) | |
12392 | { | |
ef0d8ffc NC |
12393 | /* instr[28,21] = 11011011 |
12394 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
2e8cf49e NC |
12395 | instr[30:11,10] = op : 000 ==> CSEL, 001 ==> CSINC, |
12396 | 100 ==> CSINV, 101 ==> CSNEG, | |
12397 | _1_ ==> UNALLOC | |
12398 | instr[29] = S : 0 ==> ok, 1 ==> UNALLOC | |
12399 | instr[15,12] = cond | |
12400 | instr[29] = S : 0 ==> ok, 1 ==> UNALLOC */ | |
12401 | ||
ef0d8ffc NC |
12402 | CondCode cc = INSTR (15, 12); |
12403 | uint32_t S = INSTR (29, 29); | |
12404 | uint32_t op2 = INSTR (11, 10); | |
2e8cf49e NC |
12405 | |
12406 | if (S == 1) | |
12407 | HALT_UNALLOC; | |
12408 | ||
12409 | if (op2 & 0x2) | |
12410 | HALT_UNALLOC; | |
12411 | ||
ef0d8ffc | 12412 | switch ((INSTR (31, 30) << 1) | op2) |
2e8cf49e NC |
12413 | { |
12414 | case 0: csel32 (cpu, cc); return; | |
12415 | case 1: csinc32 (cpu, cc); return; | |
12416 | case 2: csinv32 (cpu, cc); return; | |
12417 | case 3: csneg32 (cpu, cc); return; | |
12418 | case 4: csel64 (cpu, cc); return; | |
12419 | case 5: csinc64 (cpu, cc); return; | |
12420 | case 6: csinv64 (cpu, cc); return; | |
12421 | case 7: csneg64 (cpu, cc); return; | |
2e8cf49e NC |
12422 | } |
12423 | } | |
12424 | ||
12425 | /* Some helpers for counting leading 1 or 0 bits. */ | |
12426 | ||
12427 | /* Counts the number of leading bits which are the same | |
12428 | in a 32 bit value in the range 1 to 32. */ | |
12429 | static uint32_t | |
12430 | leading32 (uint32_t value) | |
12431 | { | |
12432 | int32_t mask= 0xffff0000; | |
12433 | uint32_t count= 16; /* Counts number of bits set in mask. */ | |
12434 | uint32_t lo = 1; /* Lower bound for number of sign bits. */ | |
12435 | uint32_t hi = 32; /* Upper bound for number of sign bits. */ | |
12436 | ||
12437 | while (lo + 1 < hi) | |
12438 | { | |
12439 | int32_t test = (value & mask); | |
12440 | ||
12441 | if (test == 0 || test == mask) | |
12442 | { | |
12443 | lo = count; | |
12444 | count = (lo + hi) / 2; | |
12445 | mask >>= (count - lo); | |
12446 | } | |
12447 | else | |
12448 | { | |
12449 | hi = count; | |
12450 | count = (lo + hi) / 2; | |
12451 | mask <<= hi - count; | |
12452 | } | |
12453 | } | |
12454 | ||
12455 | if (lo != hi) | |
12456 | { | |
12457 | int32_t test; | |
12458 | ||
12459 | mask >>= 1; | |
12460 | test = (value & mask); | |
12461 | ||
12462 | if (test == 0 || test == mask) | |
12463 | count = hi; | |
12464 | else | |
12465 | count = lo; | |
12466 | } | |
12467 | ||
12468 | return count; | |
12469 | } | |
12470 | ||
12471 | /* Counts the number of leading bits which are the same | |
12472 | in a 64 bit value in the range 1 to 64. */ | |
12473 | static uint64_t | |
12474 | leading64 (uint64_t value) | |
12475 | { | |
12476 | int64_t mask= 0xffffffff00000000LL; | |
12477 | uint64_t count = 32; /* Counts number of bits set in mask. */ | |
12478 | uint64_t lo = 1; /* Lower bound for number of sign bits. */ | |
12479 | uint64_t hi = 64; /* Upper bound for number of sign bits. */ | |
12480 | ||
12481 | while (lo + 1 < hi) | |
12482 | { | |
12483 | int64_t test = (value & mask); | |
12484 | ||
12485 | if (test == 0 || test == mask) | |
12486 | { | |
12487 | lo = count; | |
12488 | count = (lo + hi) / 2; | |
12489 | mask >>= (count - lo); | |
12490 | } | |
12491 | else | |
12492 | { | |
12493 | hi = count; | |
12494 | count = (lo + hi) / 2; | |
12495 | mask <<= hi - count; | |
12496 | } | |
12497 | } | |
12498 | ||
12499 | if (lo != hi) | |
12500 | { | |
12501 | int64_t test; | |
12502 | ||
12503 | mask >>= 1; | |
12504 | test = (value & mask); | |
12505 | ||
12506 | if (test == 0 || test == mask) | |
12507 | count = hi; | |
12508 | else | |
12509 | count = lo; | |
12510 | } | |
12511 | ||
12512 | return count; | |
12513 | } | |
12514 | ||
12515 | /* Bit operations. */ | |
12516 | /* N.B register args may not be SP. */ | |
12517 | ||
12518 | /* 32 bit count leading sign bits. */ | |
12519 | static void | |
12520 | cls32 (sim_cpu *cpu) | |
12521 | { | |
ef0d8ffc NC |
12522 | unsigned rn = INSTR (9, 5); |
12523 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12524 | |
12525 | /* N.B. the result needs to exclude the leading bit. */ | |
12526 | aarch64_set_reg_u64 | |
12527 | (cpu, rd, NO_SP, leading32 (aarch64_get_reg_u32 (cpu, rn, NO_SP)) - 1); | |
12528 | } | |
12529 | ||
12530 | /* 64 bit count leading sign bits. */ | |
12531 | static void | |
12532 | cls64 (sim_cpu *cpu) | |
12533 | { | |
ef0d8ffc NC |
12534 | unsigned rn = INSTR (9, 5); |
12535 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12536 | |
12537 | /* N.B. the result needs to exclude the leading bit. */ | |
12538 | aarch64_set_reg_u64 | |
12539 | (cpu, rd, NO_SP, leading64 (aarch64_get_reg_u64 (cpu, rn, NO_SP)) - 1); | |
12540 | } | |
12541 | ||
12542 | /* 32 bit count leading zero bits. */ | |
12543 | static void | |
12544 | clz32 (sim_cpu *cpu) | |
12545 | { | |
ef0d8ffc NC |
12546 | unsigned rn = INSTR (9, 5); |
12547 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12548 | uint32_t value = aarch64_get_reg_u32 (cpu, rn, NO_SP); |
12549 | ||
12550 | /* if the sign (top) bit is set then the count is 0. */ | |
12551 | if (pick32 (value, 31, 31)) | |
12552 | aarch64_set_reg_u64 (cpu, rd, NO_SP, 0L); | |
12553 | else | |
12554 | aarch64_set_reg_u64 (cpu, rd, NO_SP, leading32 (value)); | |
12555 | } | |
12556 | ||
12557 | /* 64 bit count leading zero bits. */ | |
12558 | static void | |
12559 | clz64 (sim_cpu *cpu) | |
12560 | { | |
ef0d8ffc NC |
12561 | unsigned rn = INSTR (9, 5); |
12562 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12563 | uint64_t value = aarch64_get_reg_u64 (cpu, rn, NO_SP); |
12564 | ||
12565 | /* if the sign (top) bit is set then the count is 0. */ | |
12566 | if (pick64 (value, 63, 63)) | |
12567 | aarch64_set_reg_u64 (cpu, rd, NO_SP, 0L); | |
12568 | else | |
12569 | aarch64_set_reg_u64 (cpu, rd, NO_SP, leading64 (value)); | |
12570 | } | |
12571 | ||
12572 | /* 32 bit reverse bits. */ | |
12573 | static void | |
12574 | rbit32 (sim_cpu *cpu) | |
12575 | { | |
ef0d8ffc NC |
12576 | unsigned rn = INSTR (9, 5); |
12577 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12578 | uint32_t value = aarch64_get_reg_u32 (cpu, rn, NO_SP); |
12579 | uint32_t result = 0; | |
12580 | int i; | |
12581 | ||
12582 | for (i = 0; i < 32; i++) | |
12583 | { | |
12584 | result <<= 1; | |
12585 | result |= (value & 1); | |
12586 | value >>= 1; | |
12587 | } | |
12588 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); | |
12589 | } | |
12590 | ||
12591 | /* 64 bit reverse bits. */ | |
12592 | static void | |
12593 | rbit64 (sim_cpu *cpu) | |
12594 | { | |
ef0d8ffc NC |
12595 | unsigned rn = INSTR (9, 5); |
12596 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12597 | uint64_t value = aarch64_get_reg_u64 (cpu, rn, NO_SP); |
12598 | uint64_t result = 0; | |
12599 | int i; | |
12600 | ||
12601 | for (i = 0; i < 64; i++) | |
12602 | { | |
12603 | result <<= 1; | |
57aa1742 | 12604 | result |= (value & 1UL); |
2e8cf49e NC |
12605 | value >>= 1; |
12606 | } | |
12607 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); | |
12608 | } | |
12609 | ||
12610 | /* 32 bit reverse bytes. */ | |
12611 | static void | |
12612 | rev32 (sim_cpu *cpu) | |
12613 | { | |
ef0d8ffc NC |
12614 | unsigned rn = INSTR (9, 5); |
12615 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12616 | uint32_t value = aarch64_get_reg_u32 (cpu, rn, NO_SP); |
12617 | uint32_t result = 0; | |
12618 | int i; | |
12619 | ||
12620 | for (i = 0; i < 4; i++) | |
12621 | { | |
12622 | result <<= 8; | |
12623 | result |= (value & 0xff); | |
12624 | value >>= 8; | |
12625 | } | |
12626 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); | |
12627 | } | |
12628 | ||
12629 | /* 64 bit reverse bytes. */ | |
12630 | static void | |
12631 | rev64 (sim_cpu *cpu) | |
12632 | { | |
ef0d8ffc NC |
12633 | unsigned rn = INSTR (9, 5); |
12634 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12635 | uint64_t value = aarch64_get_reg_u64 (cpu, rn, NO_SP); |
12636 | uint64_t result = 0; | |
12637 | int i; | |
12638 | ||
12639 | for (i = 0; i < 8; i++) | |
12640 | { | |
12641 | result <<= 8; | |
12642 | result |= (value & 0xffULL); | |
12643 | value >>= 8; | |
12644 | } | |
12645 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); | |
12646 | } | |
12647 | ||
12648 | /* 32 bit reverse shorts. */ | |
12649 | /* N.B.this reverses the order of the bytes in each half word. */ | |
12650 | static void | |
12651 | revh32 (sim_cpu *cpu) | |
12652 | { | |
ef0d8ffc NC |
12653 | unsigned rn = INSTR (9, 5); |
12654 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12655 | uint32_t value = aarch64_get_reg_u32 (cpu, rn, NO_SP); |
12656 | uint32_t result = 0; | |
12657 | int i; | |
12658 | ||
12659 | for (i = 0; i < 2; i++) | |
12660 | { | |
12661 | result <<= 8; | |
12662 | result |= (value & 0x00ff00ff); | |
12663 | value >>= 8; | |
12664 | } | |
12665 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); | |
12666 | } | |
12667 | ||
12668 | /* 64 bit reverse shorts. */ | |
12669 | /* N.B.this reverses the order of the bytes in each half word. */ | |
12670 | static void | |
12671 | revh64 (sim_cpu *cpu) | |
12672 | { | |
ef0d8ffc NC |
12673 | unsigned rn = INSTR (9, 5); |
12674 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12675 | uint64_t value = aarch64_get_reg_u64 (cpu, rn, NO_SP); |
12676 | uint64_t result = 0; | |
12677 | int i; | |
12678 | ||
12679 | for (i = 0; i < 2; i++) | |
12680 | { | |
12681 | result <<= 8; | |
12682 | result |= (value & 0x00ff00ff00ff00ffULL); | |
12683 | value >>= 8; | |
12684 | } | |
12685 | aarch64_set_reg_u64 (cpu, rd, NO_SP, result); | |
12686 | } | |
12687 | ||
12688 | static void | |
12689 | dexDataProc1Source (sim_cpu *cpu) | |
12690 | { | |
ef0d8ffc NC |
12691 | /* instr[30] = 1 |
12692 | instr[28,21] = 111010110 | |
12693 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
12694 | instr[29] = S : 0 ==> ok, 1 ==> UNALLOC | |
2e8cf49e NC |
12695 | instr[20,16] = opcode2 : 00000 ==> ok, ow ==> UNALLOC |
12696 | instr[15,10] = opcode : 000000 ==> RBIT, 000001 ==> REV16, | |
12697 | 000010 ==> REV, 000011 ==> UNALLOC | |
12698 | 000100 ==> CLZ, 000101 ==> CLS | |
12699 | ow ==> UNALLOC | |
ef0d8ffc NC |
12700 | instr[9,5] = rn : may not be SP |
12701 | instr[4,0] = rd : may not be SP. */ | |
2e8cf49e | 12702 | |
ef0d8ffc NC |
12703 | uint32_t S = INSTR (29, 29); |
12704 | uint32_t opcode2 = INSTR (20, 16); | |
12705 | uint32_t opcode = INSTR (15, 10); | |
12706 | uint32_t dispatch = ((INSTR (31, 31) << 3) | opcode); | |
2e8cf49e NC |
12707 | |
12708 | if (S == 1) | |
12709 | HALT_UNALLOC; | |
12710 | ||
12711 | if (opcode2 != 0) | |
12712 | HALT_UNALLOC; | |
12713 | ||
12714 | if (opcode & 0x38) | |
12715 | HALT_UNALLOC; | |
12716 | ||
12717 | switch (dispatch) | |
12718 | { | |
12719 | case 0: rbit32 (cpu); return; | |
12720 | case 1: revh32 (cpu); return; | |
12721 | case 2: rev32 (cpu); return; | |
12722 | case 4: clz32 (cpu); return; | |
12723 | case 5: cls32 (cpu); return; | |
12724 | case 8: rbit64 (cpu); return; | |
12725 | case 9: revh64 (cpu); return; | |
12726 | case 10:rev32 (cpu); return; | |
12727 | case 11:rev64 (cpu); return; | |
12728 | case 12:clz64 (cpu); return; | |
12729 | case 13:cls64 (cpu); return; | |
12730 | default: HALT_UNALLOC; | |
12731 | } | |
12732 | } | |
12733 | ||
12734 | /* Variable shift. | |
12735 | Shifts by count supplied in register. | |
12736 | N.B register args may not be SP. | |
12737 | These all use the shifted auxiliary function for | |
12738 | simplicity and clarity. Writing the actual shift | |
12739 | inline would avoid a branch and so be faster but | |
12740 | would also necessitate getting signs right. */ | |
12741 | ||
12742 | /* 32 bit arithmetic shift right. */ | |
12743 | static void | |
12744 | asrv32 (sim_cpu *cpu) | |
12745 | { | |
ef0d8ffc NC |
12746 | unsigned rm = INSTR (20, 16); |
12747 | unsigned rn = INSTR (9, 5); | |
12748 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12749 | |
12750 | aarch64_set_reg_u64 | |
12751 | (cpu, rd, NO_SP, | |
12752 | shifted32 (aarch64_get_reg_u32 (cpu, rn, NO_SP), ASR, | |
12753 | (aarch64_get_reg_u32 (cpu, rm, NO_SP) & 0x1f))); | |
12754 | } | |
12755 | ||
12756 | /* 64 bit arithmetic shift right. */ | |
12757 | static void | |
12758 | asrv64 (sim_cpu *cpu) | |
12759 | { | |
ef0d8ffc NC |
12760 | unsigned rm = INSTR (20, 16); |
12761 | unsigned rn = INSTR (9, 5); | |
12762 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12763 | |
12764 | aarch64_set_reg_u64 | |
12765 | (cpu, rd, NO_SP, | |
12766 | shifted64 (aarch64_get_reg_u64 (cpu, rn, NO_SP), ASR, | |
12767 | (aarch64_get_reg_u64 (cpu, rm, NO_SP) & 0x3f))); | |
12768 | } | |
12769 | ||
12770 | /* 32 bit logical shift left. */ | |
12771 | static void | |
12772 | lslv32 (sim_cpu *cpu) | |
12773 | { | |
ef0d8ffc NC |
12774 | unsigned rm = INSTR (20, 16); |
12775 | unsigned rn = INSTR (9, 5); | |
12776 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12777 | |
12778 | aarch64_set_reg_u64 | |
12779 | (cpu, rd, NO_SP, | |
12780 | shifted32 (aarch64_get_reg_u32 (cpu, rn, NO_SP), LSL, | |
12781 | (aarch64_get_reg_u32 (cpu, rm, NO_SP) & 0x1f))); | |
12782 | } | |
12783 | ||
12784 | /* 64 bit arithmetic shift left. */ | |
12785 | static void | |
12786 | lslv64 (sim_cpu *cpu) | |
12787 | { | |
ef0d8ffc NC |
12788 | unsigned rm = INSTR (20, 16); |
12789 | unsigned rn = INSTR (9, 5); | |
12790 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12791 | |
12792 | aarch64_set_reg_u64 | |
12793 | (cpu, rd, NO_SP, | |
12794 | shifted64 (aarch64_get_reg_u64 (cpu, rn, NO_SP), LSL, | |
12795 | (aarch64_get_reg_u64 (cpu, rm, NO_SP) & 0x3f))); | |
12796 | } | |
12797 | ||
12798 | /* 32 bit logical shift right. */ | |
12799 | static void | |
12800 | lsrv32 (sim_cpu *cpu) | |
12801 | { | |
ef0d8ffc NC |
12802 | unsigned rm = INSTR (20, 16); |
12803 | unsigned rn = INSTR (9, 5); | |
12804 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12805 | |
12806 | aarch64_set_reg_u64 | |
12807 | (cpu, rd, NO_SP, | |
12808 | shifted32 (aarch64_get_reg_u32 (cpu, rn, NO_SP), LSR, | |
12809 | (aarch64_get_reg_u32 (cpu, rm, NO_SP) & 0x1f))); | |
12810 | } | |
12811 | ||
12812 | /* 64 bit logical shift right. */ | |
12813 | static void | |
12814 | lsrv64 (sim_cpu *cpu) | |
12815 | { | |
ef0d8ffc NC |
12816 | unsigned rm = INSTR (20, 16); |
12817 | unsigned rn = INSTR (9, 5); | |
12818 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12819 | |
12820 | aarch64_set_reg_u64 | |
12821 | (cpu, rd, NO_SP, | |
12822 | shifted64 (aarch64_get_reg_u64 (cpu, rn, NO_SP), LSR, | |
12823 | (aarch64_get_reg_u64 (cpu, rm, NO_SP) & 0x3f))); | |
12824 | } | |
12825 | ||
12826 | /* 32 bit rotate right. */ | |
12827 | static void | |
12828 | rorv32 (sim_cpu *cpu) | |
12829 | { | |
ef0d8ffc NC |
12830 | unsigned rm = INSTR (20, 16); |
12831 | unsigned rn = INSTR (9, 5); | |
12832 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12833 | |
12834 | aarch64_set_reg_u64 | |
12835 | (cpu, rd, NO_SP, | |
12836 | shifted32 (aarch64_get_reg_u32 (cpu, rn, NO_SP), ROR, | |
12837 | (aarch64_get_reg_u32 (cpu, rm, NO_SP) & 0x1f))); | |
12838 | } | |
12839 | ||
12840 | /* 64 bit rotate right. */ | |
12841 | static void | |
12842 | rorv64 (sim_cpu *cpu) | |
12843 | { | |
ef0d8ffc NC |
12844 | unsigned rm = INSTR (20, 16); |
12845 | unsigned rn = INSTR (9, 5); | |
12846 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12847 | |
12848 | aarch64_set_reg_u64 | |
12849 | (cpu, rd, NO_SP, | |
12850 | shifted64 (aarch64_get_reg_u64 (cpu, rn, NO_SP), ROR, | |
12851 | (aarch64_get_reg_u64 (cpu, rm, NO_SP) & 0x3f))); | |
12852 | } | |
12853 | ||
12854 | ||
12855 | /* divide. */ | |
12856 | ||
12857 | /* 32 bit signed divide. */ | |
12858 | static void | |
12859 | cpuiv32 (sim_cpu *cpu) | |
12860 | { | |
ef0d8ffc NC |
12861 | unsigned rm = INSTR (20, 16); |
12862 | unsigned rn = INSTR (9, 5); | |
12863 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12864 | /* N.B. the pseudo-code does the divide using 64 bit data. */ |
12865 | /* TODO : check that this rounds towards zero as required. */ | |
12866 | int64_t dividend = aarch64_get_reg_s32 (cpu, rn, NO_SP); | |
12867 | int64_t divisor = aarch64_get_reg_s32 (cpu, rm, NO_SP); | |
12868 | ||
12869 | aarch64_set_reg_s64 (cpu, rd, NO_SP, | |
12870 | divisor ? ((int32_t) (dividend / divisor)) : 0); | |
12871 | } | |
12872 | ||
12873 | /* 64 bit signed divide. */ | |
12874 | static void | |
12875 | cpuiv64 (sim_cpu *cpu) | |
12876 | { | |
ef0d8ffc NC |
12877 | unsigned rm = INSTR (20, 16); |
12878 | unsigned rn = INSTR (9, 5); | |
12879 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12880 | |
12881 | /* TODO : check that this rounds towards zero as required. */ | |
12882 | int64_t divisor = aarch64_get_reg_s64 (cpu, rm, NO_SP); | |
12883 | ||
12884 | aarch64_set_reg_s64 | |
12885 | (cpu, rd, NO_SP, | |
12886 | divisor ? (aarch64_get_reg_s64 (cpu, rn, NO_SP) / divisor) : 0); | |
12887 | } | |
12888 | ||
12889 | /* 32 bit unsigned divide. */ | |
12890 | static void | |
12891 | udiv32 (sim_cpu *cpu) | |
12892 | { | |
ef0d8ffc NC |
12893 | unsigned rm = INSTR (20, 16); |
12894 | unsigned rn = INSTR (9, 5); | |
12895 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12896 | |
12897 | /* N.B. the pseudo-code does the divide using 64 bit data. */ | |
12898 | uint64_t dividend = aarch64_get_reg_u32 (cpu, rn, NO_SP); | |
12899 | uint64_t divisor = aarch64_get_reg_u32 (cpu, rm, NO_SP); | |
12900 | ||
12901 | aarch64_set_reg_u64 (cpu, rd, NO_SP, | |
12902 | divisor ? (uint32_t) (dividend / divisor) : 0); | |
12903 | } | |
12904 | ||
12905 | /* 64 bit unsigned divide. */ | |
12906 | static void | |
12907 | udiv64 (sim_cpu *cpu) | |
12908 | { | |
ef0d8ffc NC |
12909 | unsigned rm = INSTR (20, 16); |
12910 | unsigned rn = INSTR (9, 5); | |
12911 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
12912 | |
12913 | /* TODO : check that this rounds towards zero as required. */ | |
12914 | uint64_t divisor = aarch64_get_reg_u64 (cpu, rm, NO_SP); | |
12915 | ||
12916 | aarch64_set_reg_u64 | |
12917 | (cpu, rd, NO_SP, | |
12918 | divisor ? (aarch64_get_reg_u64 (cpu, rn, NO_SP) / divisor) : 0); | |
12919 | } | |
12920 | ||
12921 | static void | |
12922 | dexDataProc2Source (sim_cpu *cpu) | |
12923 | { | |
12924 | /* assert instr[30] == 0 | |
12925 | instr[28,21] == 11010110 | |
12926 | instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit | |
12927 | instr[29] = S : 0 ==> ok, 1 ==> UNALLOC | |
12928 | instr[15,10] = opcode : 000010 ==> UDIV, 000011 ==> CPUIV, | |
12929 | 001000 ==> LSLV, 001001 ==> LSRV | |
12930 | 001010 ==> ASRV, 001011 ==> RORV | |
12931 | ow ==> UNALLOC. */ | |
12932 | ||
12933 | uint32_t dispatch; | |
ef0d8ffc NC |
12934 | uint32_t S = INSTR (29, 29); |
12935 | uint32_t opcode = INSTR (15, 10); | |
2e8cf49e NC |
12936 | |
12937 | if (S == 1) | |
12938 | HALT_UNALLOC; | |
12939 | ||
12940 | if (opcode & 0x34) | |
12941 | HALT_UNALLOC; | |
12942 | ||
ef0d8ffc | 12943 | dispatch = ( (INSTR (31, 31) << 3) |
2e8cf49e NC |
12944 | | (uimm (opcode, 3, 3) << 2) |
12945 | | uimm (opcode, 1, 0)); | |
12946 | switch (dispatch) | |
12947 | { | |
12948 | case 2: udiv32 (cpu); return; | |
12949 | case 3: cpuiv32 (cpu); return; | |
12950 | case 4: lslv32 (cpu); return; | |
12951 | case 5: lsrv32 (cpu); return; | |
12952 | case 6: asrv32 (cpu); return; | |
12953 | case 7: rorv32 (cpu); return; | |
12954 | case 10: udiv64 (cpu); return; | |
12955 | case 11: cpuiv64 (cpu); return; | |
12956 | case 12: lslv64 (cpu); return; | |
12957 | case 13: lsrv64 (cpu); return; | |
12958 | case 14: asrv64 (cpu); return; | |
12959 | case 15: rorv64 (cpu); return; | |
12960 | default: HALT_UNALLOC; | |
12961 | } | |
12962 | } | |
12963 | ||
12964 | ||
12965 | /* Multiply. */ | |
12966 | ||
12967 | /* 32 bit multiply and add. */ | |
12968 | static void | |
12969 | madd32 (sim_cpu *cpu) | |
12970 | { | |
ef0d8ffc NC |
12971 | unsigned rm = INSTR (20, 16); |
12972 | unsigned ra = INSTR (14, 10); | |
12973 | unsigned rn = INSTR (9, 5); | |
12974 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 12975 | |
2cdad34c | 12976 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
12977 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
12978 | aarch64_get_reg_u32 (cpu, ra, NO_SP) | |
12979 | + aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
12980 | * aarch64_get_reg_u32 (cpu, rm, NO_SP)); | |
12981 | } | |
12982 | ||
12983 | /* 64 bit multiply and add. */ | |
12984 | static void | |
12985 | madd64 (sim_cpu *cpu) | |
12986 | { | |
ef0d8ffc NC |
12987 | unsigned rm = INSTR (20, 16); |
12988 | unsigned ra = INSTR (14, 10); | |
12989 | unsigned rn = INSTR (9, 5); | |
12990 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 12991 | |
2cdad34c | 12992 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
12993 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
12994 | aarch64_get_reg_u64 (cpu, ra, NO_SP) | |
2cdad34c NC |
12995 | + (aarch64_get_reg_u64 (cpu, rn, NO_SP) |
12996 | * aarch64_get_reg_u64 (cpu, rm, NO_SP))); | |
2e8cf49e NC |
12997 | } |
12998 | ||
12999 | /* 32 bit multiply and sub. */ | |
13000 | static void | |
13001 | msub32 (sim_cpu *cpu) | |
13002 | { | |
ef0d8ffc NC |
13003 | unsigned rm = INSTR (20, 16); |
13004 | unsigned ra = INSTR (14, 10); | |
13005 | unsigned rn = INSTR (9, 5); | |
13006 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 13007 | |
2cdad34c | 13008 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13009 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
13010 | aarch64_get_reg_u32 (cpu, ra, NO_SP) | |
13011 | - aarch64_get_reg_u32 (cpu, rn, NO_SP) | |
13012 | * aarch64_get_reg_u32 (cpu, rm, NO_SP)); | |
13013 | } | |
13014 | ||
13015 | /* 64 bit multiply and sub. */ | |
13016 | static void | |
13017 | msub64 (sim_cpu *cpu) | |
13018 | { | |
ef0d8ffc NC |
13019 | unsigned rm = INSTR (20, 16); |
13020 | unsigned ra = INSTR (14, 10); | |
13021 | unsigned rn = INSTR (9, 5); | |
13022 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 13023 | |
2cdad34c | 13024 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13025 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
13026 | aarch64_get_reg_u64 (cpu, ra, NO_SP) | |
13027 | - aarch64_get_reg_u64 (cpu, rn, NO_SP) | |
13028 | * aarch64_get_reg_u64 (cpu, rm, NO_SP)); | |
13029 | } | |
13030 | ||
13031 | /* Signed multiply add long -- source, source2 : 32 bit, source3 : 64 bit. */ | |
13032 | static void | |
13033 | smaddl (sim_cpu *cpu) | |
13034 | { | |
ef0d8ffc NC |
13035 | unsigned rm = INSTR (20, 16); |
13036 | unsigned ra = INSTR (14, 10); | |
13037 | unsigned rn = INSTR (9, 5); | |
13038 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
13039 | |
13040 | /* N.B. we need to multiply the signed 32 bit values in rn, rm to | |
13041 | obtain a 64 bit product. */ | |
13042 | aarch64_set_reg_s64 | |
13043 | (cpu, rd, NO_SP, | |
13044 | aarch64_get_reg_s64 (cpu, ra, NO_SP) | |
13045 | + ((int64_t) aarch64_get_reg_s32 (cpu, rn, NO_SP)) | |
13046 | * ((int64_t) aarch64_get_reg_s32 (cpu, rm, NO_SP))); | |
13047 | } | |
13048 | ||
13049 | /* Signed multiply sub long -- source, source2 : 32 bit, source3 : 64 bit. */ | |
13050 | static void | |
13051 | smsubl (sim_cpu *cpu) | |
13052 | { | |
ef0d8ffc NC |
13053 | unsigned rm = INSTR (20, 16); |
13054 | unsigned ra = INSTR (14, 10); | |
13055 | unsigned rn = INSTR (9, 5); | |
13056 | unsigned rd = INSTR (4, 0); | |
2e8cf49e NC |
13057 | |
13058 | /* N.B. we need to multiply the signed 32 bit values in rn, rm to | |
13059 | obtain a 64 bit product. */ | |
13060 | aarch64_set_reg_s64 | |
13061 | (cpu, rd, NO_SP, | |
13062 | aarch64_get_reg_s64 (cpu, ra, NO_SP) | |
13063 | - ((int64_t) aarch64_get_reg_s32 (cpu, rn, NO_SP)) | |
13064 | * ((int64_t) aarch64_get_reg_s32 (cpu, rm, NO_SP))); | |
13065 | } | |
13066 | ||
13067 | /* Integer Multiply/Divide. */ | |
13068 | ||
13069 | /* First some macros and a helper function. */ | |
13070 | /* Macros to test or access elements of 64 bit words. */ | |
13071 | ||
13072 | /* Mask used to access lo 32 bits of 64 bit unsigned int. */ | |
13073 | #define LOW_WORD_MASK ((1ULL << 32) - 1) | |
13074 | /* Return the lo 32 bit word of a 64 bit unsigned int as a 64 bit unsigned int. */ | |
13075 | #define lowWordToU64(_value_u64) ((_value_u64) & LOW_WORD_MASK) | |
13076 | /* Return the hi 32 bit word of a 64 bit unsigned int as a 64 bit unsigned int. */ | |
13077 | #define highWordToU64(_value_u64) ((_value_u64) >> 32) | |
13078 | ||
13079 | /* Offset of sign bit in 64 bit signed integger. */ | |
13080 | #define SIGN_SHIFT_U64 63 | |
13081 | /* The sign bit itself -- also identifies the minimum negative int value. */ | |
13082 | #define SIGN_BIT_U64 (1UL << SIGN_SHIFT_U64) | |
13083 | /* Return true if a 64 bit signed int presented as an unsigned int is the | |
13084 | most negative value. */ | |
13085 | #define isMinimumU64(_value_u64) ((_value_u64) == SIGN_BIT_U64) | |
13086 | /* Return true (non-zero) if a 64 bit signed int presented as an unsigned | |
13087 | int has its sign bit set to false. */ | |
13088 | #define isSignSetU64(_value_u64) ((_value_u64) & SIGN_BIT_U64) | |
13089 | /* Return 1L or -1L according to whether a 64 bit signed int presented as | |
13090 | an unsigned int has its sign bit set or not. */ | |
13091 | #define signOfU64(_value_u64) (1L + (((value_u64) >> SIGN_SHIFT_U64) * -2L) | |
13092 | /* Clear the sign bit of a 64 bit signed int presented as an unsigned int. */ | |
13093 | #define clearSignU64(_value_u64) ((_value_u64) &= ~SIGN_BIT_U64) | |
13094 | ||
13095 | /* Multiply two 64 bit ints and return. | |
13096 | the hi 64 bits of the 128 bit product. */ | |
13097 | ||
13098 | static uint64_t | |
13099 | mul64hi (uint64_t value1, uint64_t value2) | |
13100 | { | |
13101 | uint64_t resultmid1; | |
13102 | uint64_t result; | |
13103 | uint64_t value1_lo = lowWordToU64 (value1); | |
13104 | uint64_t value1_hi = highWordToU64 (value1) ; | |
13105 | uint64_t value2_lo = lowWordToU64 (value2); | |
13106 | uint64_t value2_hi = highWordToU64 (value2); | |
13107 | ||
13108 | /* Cross-multiply and collect results. */ | |
2e8cf49e NC |
13109 | uint64_t xproductlo = value1_lo * value2_lo; |
13110 | uint64_t xproductmid1 = value1_lo * value2_hi; | |
13111 | uint64_t xproductmid2 = value1_hi * value2_lo; | |
13112 | uint64_t xproducthi = value1_hi * value2_hi; | |
13113 | uint64_t carry = 0; | |
13114 | /* Start accumulating 64 bit results. */ | |
13115 | /* Drop bottom half of lowest cross-product. */ | |
13116 | uint64_t resultmid = xproductlo >> 32; | |
13117 | /* Add in middle products. */ | |
13118 | resultmid = resultmid + xproductmid1; | |
13119 | ||
13120 | /* Check for overflow. */ | |
13121 | if (resultmid < xproductmid1) | |
13122 | /* Carry over 1 into top cross-product. */ | |
13123 | carry++; | |
13124 | ||
13125 | resultmid1 = resultmid + xproductmid2; | |
13126 | ||
13127 | /* Check for overflow. */ | |
13128 | if (resultmid1 < xproductmid2) | |
13129 | /* Carry over 1 into top cross-product. */ | |
13130 | carry++; | |
13131 | ||
13132 | /* Drop lowest 32 bits of middle cross-product. */ | |
13133 | result = resultmid1 >> 32; | |
8ecbe595 JW |
13134 | /* Move carry bit to just above middle cross-product highest bit. */ |
13135 | carry = carry << 32; | |
2e8cf49e NC |
13136 | |
13137 | /* Add top cross-product plus and any carry. */ | |
13138 | result += xproducthi + carry; | |
13139 | ||
13140 | return result; | |
13141 | } | |
13142 | ||
13143 | /* Signed multiply high, source, source2 : | |
13144 | 64 bit, dest <-- high 64-bit of result. */ | |
13145 | static void | |
13146 | smulh (sim_cpu *cpu) | |
13147 | { | |
13148 | uint64_t uresult; | |
ef0d8ffc NC |
13149 | int64_t result; |
13150 | unsigned rm = INSTR (20, 16); | |
13151 | unsigned rn = INSTR (9, 5); | |
13152 | unsigned rd = INSTR (4, 0); | |
13153 | GReg ra = INSTR (14, 10); | |
13154 | int64_t value1 = aarch64_get_reg_u64 (cpu, rn, NO_SP); | |
13155 | int64_t value2 = aarch64_get_reg_u64 (cpu, rm, NO_SP); | |
2e8cf49e NC |
13156 | uint64_t uvalue1; |
13157 | uint64_t uvalue2; | |
8ecbe595 | 13158 | int negate = 0; |
2e8cf49e NC |
13159 | |
13160 | if (ra != R31) | |
13161 | HALT_UNALLOC; | |
13162 | ||
13163 | /* Convert to unsigned and use the unsigned mul64hi routine | |
13164 | the fix the sign up afterwards. */ | |
13165 | if (value1 < 0) | |
13166 | { | |
8ecbe595 | 13167 | negate = !negate; |
2e8cf49e NC |
13168 | uvalue1 = -value1; |
13169 | } | |
13170 | else | |
13171 | { | |
13172 | uvalue1 = value1; | |
13173 | } | |
13174 | ||
13175 | if (value2 < 0) | |
13176 | { | |
8ecbe595 | 13177 | negate = !negate; |
2e8cf49e NC |
13178 | uvalue2 = -value2; |
13179 | } | |
13180 | else | |
13181 | { | |
13182 | uvalue2 = value2; | |
13183 | } | |
13184 | ||
2cdad34c | 13185 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
8ecbe595 | 13186 | |
2e8cf49e NC |
13187 | uresult = mul64hi (uvalue1, uvalue2); |
13188 | result = uresult; | |
8ecbe595 JW |
13189 | |
13190 | if (negate) | |
13191 | { | |
13192 | /* Multiply 128-bit result by -1, which means highpart gets inverted, | |
13193 | and has carry in added only if low part is 0. */ | |
13194 | result = ~result; | |
13195 | if ((uvalue1 * uvalue2) == 0) | |
13196 | result += 1; | |
13197 | } | |
2e8cf49e NC |
13198 | |
13199 | aarch64_set_reg_s64 (cpu, rd, NO_SP, result); | |
13200 | } | |
13201 | ||
13202 | /* Unsigned multiply add long -- source, source2 : | |
13203 | 32 bit, source3 : 64 bit. */ | |
13204 | static void | |
13205 | umaddl (sim_cpu *cpu) | |
13206 | { | |
ef0d8ffc NC |
13207 | unsigned rm = INSTR (20, 16); |
13208 | unsigned ra = INSTR (14, 10); | |
13209 | unsigned rn = INSTR (9, 5); | |
13210 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 13211 | |
2cdad34c | 13212 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13213 | /* N.B. we need to multiply the signed 32 bit values in rn, rm to |
13214 | obtain a 64 bit product. */ | |
13215 | aarch64_set_reg_u64 | |
13216 | (cpu, rd, NO_SP, | |
13217 | aarch64_get_reg_u64 (cpu, ra, NO_SP) | |
13218 | + ((uint64_t) aarch64_get_reg_u32 (cpu, rn, NO_SP)) | |
13219 | * ((uint64_t) aarch64_get_reg_u32 (cpu, rm, NO_SP))); | |
13220 | } | |
13221 | ||
13222 | /* Unsigned multiply sub long -- source, source2 : 32 bit, source3 : 64 bit. */ | |
13223 | static void | |
13224 | umsubl (sim_cpu *cpu) | |
13225 | { | |
ef0d8ffc NC |
13226 | unsigned rm = INSTR (20, 16); |
13227 | unsigned ra = INSTR (14, 10); | |
13228 | unsigned rn = INSTR (9, 5); | |
13229 | unsigned rd = INSTR (4, 0); | |
2e8cf49e | 13230 | |
2cdad34c | 13231 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13232 | /* N.B. we need to multiply the signed 32 bit values in rn, rm to |
13233 | obtain a 64 bit product. */ | |
13234 | aarch64_set_reg_u64 | |
13235 | (cpu, rd, NO_SP, | |
13236 | aarch64_get_reg_u64 (cpu, ra, NO_SP) | |
13237 | - ((uint64_t) aarch64_get_reg_u32 (cpu, rn, NO_SP)) | |
13238 | * ((uint64_t) aarch64_get_reg_u32 (cpu, rm, NO_SP))); | |
13239 | } | |
13240 | ||
13241 | /* Unsigned multiply high, source, source2 : | |
13242 | 64 bit, dest <-- high 64-bit of result. */ | |
13243 | static void | |
13244 | umulh (sim_cpu *cpu) | |
13245 | { | |
ef0d8ffc NC |
13246 | unsigned rm = INSTR (20, 16); |
13247 | unsigned rn = INSTR (9, 5); | |
13248 | unsigned rd = INSTR (4, 0); | |
13249 | GReg ra = INSTR (14, 10); | |
2e8cf49e NC |
13250 | |
13251 | if (ra != R31) | |
13252 | HALT_UNALLOC; | |
13253 | ||
2cdad34c | 13254 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13255 | aarch64_set_reg_u64 (cpu, rd, NO_SP, |
13256 | mul64hi (aarch64_get_reg_u64 (cpu, rn, NO_SP), | |
13257 | aarch64_get_reg_u64 (cpu, rm, NO_SP))); | |
13258 | } | |
13259 | ||
13260 | static void | |
13261 | dexDataProc3Source (sim_cpu *cpu) | |
13262 | { | |
13263 | /* assert instr[28,24] == 11011. */ | |
13264 | /* instr[31] = size : 0 ==> 32 bit, 1 ==> 64 bit (for rd at least) | |
13265 | instr[30,29] = op54 : 00 ==> ok, ow ==> UNALLOC | |
13266 | instr[23,21] = op31 : 111 ==> UNALLOC, o2 ==> ok | |
13267 | instr[15] = o0 : 0/1 ==> ok | |
13268 | instr[23,21:15] ==> op : 0000 ==> MADD, 0001 ==> MSUB, (32/64 bit) | |
13269 | 0010 ==> SMADDL, 0011 ==> SMSUBL, (64 bit only) | |
13270 | 0100 ==> SMULH, (64 bit only) | |
13271 | 1010 ==> UMADDL, 1011 ==> UNSUBL, (64 bit only) | |
13272 | 1100 ==> UMULH (64 bit only) | |
13273 | ow ==> UNALLOC. */ | |
13274 | ||
13275 | uint32_t dispatch; | |
ef0d8ffc NC |
13276 | uint32_t size = INSTR (31, 31); |
13277 | uint32_t op54 = INSTR (30, 29); | |
13278 | uint32_t op31 = INSTR (23, 21); | |
13279 | uint32_t o0 = INSTR (15, 15); | |
2e8cf49e NC |
13280 | |
13281 | if (op54 != 0) | |
13282 | HALT_UNALLOC; | |
13283 | ||
13284 | if (size == 0) | |
13285 | { | |
13286 | if (op31 != 0) | |
13287 | HALT_UNALLOC; | |
13288 | ||
13289 | if (o0 == 0) | |
13290 | madd32 (cpu); | |
13291 | else | |
13292 | msub32 (cpu); | |
13293 | return; | |
13294 | } | |
13295 | ||
13296 | dispatch = (op31 << 1) | o0; | |
13297 | ||
13298 | switch (dispatch) | |
13299 | { | |
13300 | case 0: madd64 (cpu); return; | |
13301 | case 1: msub64 (cpu); return; | |
13302 | case 2: smaddl (cpu); return; | |
13303 | case 3: smsubl (cpu); return; | |
13304 | case 4: smulh (cpu); return; | |
13305 | case 10: umaddl (cpu); return; | |
13306 | case 11: umsubl (cpu); return; | |
13307 | case 12: umulh (cpu); return; | |
13308 | default: HALT_UNALLOC; | |
13309 | } | |
13310 | } | |
13311 | ||
13312 | static void | |
13313 | dexDPReg (sim_cpu *cpu) | |
13314 | { | |
13315 | /* uint32_t group = dispatchGroup (aarch64_get_instr (cpu)); | |
13316 | assert group == GROUP_DPREG_0101 || group == GROUP_DPREG_1101 | |
13317 | bits [28:24:21] of a DPReg are the secondary dispatch vector. */ | |
13318 | uint32_t group2 = dispatchDPReg (aarch64_get_instr (cpu)); | |
13319 | ||
13320 | switch (group2) | |
13321 | { | |
13322 | case DPREG_LOG_000: | |
13323 | case DPREG_LOG_001: | |
13324 | dexLogicalShiftedRegister (cpu); return; | |
13325 | ||
13326 | case DPREG_ADDSHF_010: | |
13327 | dexAddSubtractShiftedRegister (cpu); return; | |
13328 | ||
13329 | case DPREG_ADDEXT_011: | |
13330 | dexAddSubtractExtendedRegister (cpu); return; | |
13331 | ||
13332 | case DPREG_ADDCOND_100: | |
13333 | { | |
13334 | /* This set bundles a variety of different operations. */ | |
13335 | /* Check for. */ | |
13336 | /* 1) add/sub w carry. */ | |
13337 | uint32_t mask1 = 0x1FE00000U; | |
13338 | uint32_t val1 = 0x1A000000U; | |
13339 | /* 2) cond compare register/immediate. */ | |
13340 | uint32_t mask2 = 0x1FE00000U; | |
13341 | uint32_t val2 = 0x1A400000U; | |
13342 | /* 3) cond select. */ | |
13343 | uint32_t mask3 = 0x1FE00000U; | |
13344 | uint32_t val3 = 0x1A800000U; | |
13345 | /* 4) data proc 1/2 source. */ | |
13346 | uint32_t mask4 = 0x1FE00000U; | |
13347 | uint32_t val4 = 0x1AC00000U; | |
13348 | ||
13349 | if ((aarch64_get_instr (cpu) & mask1) == val1) | |
13350 | dexAddSubtractWithCarry (cpu); | |
13351 | ||
13352 | else if ((aarch64_get_instr (cpu) & mask2) == val2) | |
13353 | CondCompare (cpu); | |
13354 | ||
13355 | else if ((aarch64_get_instr (cpu) & mask3) == val3) | |
13356 | dexCondSelect (cpu); | |
13357 | ||
13358 | else if ((aarch64_get_instr (cpu) & mask4) == val4) | |
13359 | { | |
13360 | /* Bit 30 is clear for data proc 2 source | |
13361 | and set for data proc 1 source. */ | |
13362 | if (aarch64_get_instr (cpu) & (1U << 30)) | |
13363 | dexDataProc1Source (cpu); | |
13364 | else | |
13365 | dexDataProc2Source (cpu); | |
13366 | } | |
13367 | ||
13368 | else | |
13369 | /* Should not reach here. */ | |
13370 | HALT_NYI; | |
13371 | ||
13372 | return; | |
13373 | } | |
13374 | ||
13375 | case DPREG_3SRC_110: | |
13376 | dexDataProc3Source (cpu); return; | |
13377 | ||
13378 | case DPREG_UNALLOC_101: | |
13379 | HALT_UNALLOC; | |
13380 | ||
13381 | case DPREG_3SRC_111: | |
13382 | dexDataProc3Source (cpu); return; | |
13383 | ||
13384 | default: | |
13385 | /* Should never reach here. */ | |
13386 | HALT_NYI; | |
13387 | } | |
13388 | } | |
13389 | ||
13390 | /* Unconditional Branch immediate. | |
13391 | Offset is a PC-relative byte offset in the range +/- 128MiB. | |
13392 | The offset is assumed to be raw from the decode i.e. the | |
13393 | simulator is expected to scale them from word offsets to byte. */ | |
13394 | ||
13395 | /* Unconditional branch. */ | |
13396 | static void | |
13397 | buc (sim_cpu *cpu, int32_t offset) | |
13398 | { | |
13399 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13400 | } | |
13401 | ||
13402 | static unsigned stack_depth = 0; | |
13403 | ||
13404 | /* Unconditional branch and link -- writes return PC to LR. */ | |
13405 | static void | |
13406 | bl (sim_cpu *cpu, int32_t offset) | |
13407 | { | |
2cdad34c | 13408 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13409 | aarch64_save_LR (cpu); |
13410 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13411 | ||
13412 | if (TRACE_BRANCH_P (cpu)) | |
13413 | { | |
13414 | ++ stack_depth; | |
13415 | TRACE_BRANCH (cpu, | |
13416 | " %*scall %" PRIx64 " [%s]" | |
13417 | " [args: %" PRIx64 " %" PRIx64 " %" PRIx64 "]", | |
13418 | stack_depth, " ", aarch64_get_next_PC (cpu), | |
5357150c MF |
13419 | aarch64_get_func (CPU_STATE (cpu), |
13420 | aarch64_get_next_PC (cpu)), | |
2e8cf49e NC |
13421 | aarch64_get_reg_u64 (cpu, 0, NO_SP), |
13422 | aarch64_get_reg_u64 (cpu, 1, NO_SP), | |
13423 | aarch64_get_reg_u64 (cpu, 2, NO_SP) | |
13424 | ); | |
13425 | } | |
13426 | } | |
13427 | ||
13428 | /* Unconditional Branch register. | |
13429 | Branch/return address is in source register. */ | |
13430 | ||
13431 | /* Unconditional branch. */ | |
13432 | static void | |
13433 | br (sim_cpu *cpu) | |
13434 | { | |
ef0d8ffc | 13435 | unsigned rn = INSTR (9, 5); |
2cdad34c | 13436 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13437 | aarch64_set_next_PC (cpu, aarch64_get_reg_u64 (cpu, rn, NO_SP)); |
13438 | } | |
13439 | ||
13440 | /* Unconditional branch and link -- writes return PC to LR. */ | |
13441 | static void | |
13442 | blr (sim_cpu *cpu) | |
13443 | { | |
69b1ffdb CB |
13444 | /* Ensure we read the destination before we write LR. */ |
13445 | uint64_t target = aarch64_get_reg_u64 (cpu, INSTR (9, 5), NO_SP); | |
2e8cf49e | 13446 | |
2cdad34c | 13447 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e | 13448 | aarch64_save_LR (cpu); |
69b1ffdb | 13449 | aarch64_set_next_PC (cpu, target); |
2e8cf49e NC |
13450 | |
13451 | if (TRACE_BRANCH_P (cpu)) | |
13452 | { | |
13453 | ++ stack_depth; | |
13454 | TRACE_BRANCH (cpu, | |
13455 | " %*scall %" PRIx64 " [%s]" | |
13456 | " [args: %" PRIx64 " %" PRIx64 " %" PRIx64 "]", | |
13457 | stack_depth, " ", aarch64_get_next_PC (cpu), | |
5357150c MF |
13458 | aarch64_get_func (CPU_STATE (cpu), |
13459 | aarch64_get_next_PC (cpu)), | |
2e8cf49e NC |
13460 | aarch64_get_reg_u64 (cpu, 0, NO_SP), |
13461 | aarch64_get_reg_u64 (cpu, 1, NO_SP), | |
13462 | aarch64_get_reg_u64 (cpu, 2, NO_SP) | |
13463 | ); | |
13464 | } | |
13465 | } | |
13466 | ||
13467 | /* Return -- assembler will default source to LR this is functionally | |
13468 | equivalent to br but, presumably, unlike br it side effects the | |
13469 | branch predictor. */ | |
13470 | static void | |
13471 | ret (sim_cpu *cpu) | |
13472 | { | |
ef0d8ffc | 13473 | unsigned rn = INSTR (9, 5); |
2e8cf49e NC |
13474 | aarch64_set_next_PC (cpu, aarch64_get_reg_u64 (cpu, rn, NO_SP)); |
13475 | ||
2cdad34c | 13476 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13477 | if (TRACE_BRANCH_P (cpu)) |
13478 | { | |
13479 | TRACE_BRANCH (cpu, | |
13480 | " %*sreturn [result: %" PRIx64 "]", | |
13481 | stack_depth, " ", aarch64_get_reg_u64 (cpu, 0, NO_SP)); | |
13482 | -- stack_depth; | |
13483 | } | |
13484 | } | |
13485 | ||
13486 | /* NOP -- we implement this and call it from the decode in case we | |
13487 | want to intercept it later. */ | |
13488 | ||
13489 | static void | |
13490 | nop (sim_cpu *cpu) | |
13491 | { | |
2cdad34c | 13492 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13493 | } |
13494 | ||
13495 | /* Data synchronization barrier. */ | |
13496 | ||
13497 | static void | |
13498 | dsb (sim_cpu *cpu) | |
13499 | { | |
2cdad34c | 13500 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13501 | } |
13502 | ||
13503 | /* Data memory barrier. */ | |
13504 | ||
13505 | static void | |
13506 | dmb (sim_cpu *cpu) | |
13507 | { | |
2cdad34c | 13508 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13509 | } |
13510 | ||
13511 | /* Instruction synchronization barrier. */ | |
13512 | ||
13513 | static void | |
13514 | isb (sim_cpu *cpu) | |
13515 | { | |
2cdad34c | 13516 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13517 | } |
13518 | ||
13519 | static void | |
13520 | dexBranchImmediate (sim_cpu *cpu) | |
13521 | { | |
13522 | /* assert instr[30,26] == 00101 | |
13523 | instr[31] ==> 0 == B, 1 == BL | |
13524 | instr[25,0] == imm26 branch offset counted in words. */ | |
13525 | ||
ef0d8ffc | 13526 | uint32_t top = INSTR (31, 31); |
2e8cf49e NC |
13527 | /* We have a 26 byte signed word offset which we need to pass to the |
13528 | execute routine as a signed byte offset. */ | |
13529 | int32_t offset = simm32 (aarch64_get_instr (cpu), 25, 0) << 2; | |
13530 | ||
13531 | if (top) | |
13532 | bl (cpu, offset); | |
13533 | else | |
13534 | buc (cpu, offset); | |
13535 | } | |
13536 | ||
13537 | /* Control Flow. */ | |
13538 | ||
13539 | /* Conditional branch | |
13540 | ||
13541 | Offset is a PC-relative byte offset in the range +/- 1MiB pos is | |
13542 | a bit position in the range 0 .. 63 | |
13543 | ||
13544 | cc is a CondCode enum value as pulled out of the decode | |
13545 | ||
13546 | N.B. any offset register (source) can only be Xn or Wn. */ | |
13547 | ||
13548 | static void | |
13549 | bcc (sim_cpu *cpu, int32_t offset, CondCode cc) | |
13550 | { | |
2cdad34c NC |
13551 | /* The test returns TRUE if CC is met. */ |
13552 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); | |
2e8cf49e NC |
13553 | if (testConditionCode (cpu, cc)) |
13554 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13555 | } | |
13556 | ||
13557 | /* 32 bit branch on register non-zero. */ | |
13558 | static void | |
13559 | cbnz32 (sim_cpu *cpu, int32_t offset) | |
13560 | { | |
ef0d8ffc | 13561 | unsigned rt = INSTR (4, 0); |
2e8cf49e | 13562 | |
2cdad34c | 13563 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13564 | if (aarch64_get_reg_u32 (cpu, rt, NO_SP) != 0) |
13565 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13566 | } | |
13567 | ||
13568 | /* 64 bit branch on register zero. */ | |
13569 | static void | |
13570 | cbnz (sim_cpu *cpu, int32_t offset) | |
13571 | { | |
ef0d8ffc | 13572 | unsigned rt = INSTR (4, 0); |
2e8cf49e | 13573 | |
2cdad34c | 13574 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13575 | if (aarch64_get_reg_u64 (cpu, rt, NO_SP) != 0) |
13576 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13577 | } | |
13578 | ||
13579 | /* 32 bit branch on register non-zero. */ | |
13580 | static void | |
13581 | cbz32 (sim_cpu *cpu, int32_t offset) | |
13582 | { | |
ef0d8ffc | 13583 | unsigned rt = INSTR (4, 0); |
2e8cf49e | 13584 | |
2cdad34c | 13585 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13586 | if (aarch64_get_reg_u32 (cpu, rt, NO_SP) == 0) |
13587 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13588 | } | |
13589 | ||
13590 | /* 64 bit branch on register zero. */ | |
13591 | static void | |
13592 | cbz (sim_cpu *cpu, int32_t offset) | |
13593 | { | |
ef0d8ffc | 13594 | unsigned rt = INSTR (4, 0); |
2e8cf49e | 13595 | |
2cdad34c | 13596 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13597 | if (aarch64_get_reg_u64 (cpu, rt, NO_SP) == 0) |
13598 | aarch64_set_next_PC_by_offset (cpu, offset); | |
13599 | } | |
13600 | ||
13601 | /* Branch on register bit test non-zero -- one size fits all. */ | |
13602 | static void | |
13603 | tbnz (sim_cpu *cpu, uint32_t pos, int32_t offset) | |
13604 | { | |
ef0d8ffc | 13605 | unsigned rt = INSTR (4, 0); |
2e8cf49e | 13606 | |
2cdad34c | 13607 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
668650d5 | 13608 | if (aarch64_get_reg_u64 (cpu, rt, NO_SP) & (((uint64_t) 1) << pos)) |
2e8cf49e NC |
13609 | aarch64_set_next_PC_by_offset (cpu, offset); |
13610 | } | |
13611 | ||
2cdad34c | 13612 | /* Branch on register bit test zero -- one size fits all. */ |
2e8cf49e NC |
13613 | static void |
13614 | tbz (sim_cpu *cpu, uint32_t pos, int32_t offset) | |
13615 | { | |
ef0d8ffc | 13616 | unsigned rt = INSTR (4, 0); |
2e8cf49e | 13617 | |
2cdad34c | 13618 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
668650d5 | 13619 | if (!(aarch64_get_reg_u64 (cpu, rt, NO_SP) & (((uint64_t) 1) << pos))) |
2e8cf49e NC |
13620 | aarch64_set_next_PC_by_offset (cpu, offset); |
13621 | } | |
13622 | ||
13623 | static void | |
13624 | dexCompareBranchImmediate (sim_cpu *cpu) | |
13625 | { | |
13626 | /* instr[30,25] = 01 1010 | |
13627 | instr[31] = size : 0 ==> 32, 1 ==> 64 | |
13628 | instr[24] = op : 0 ==> CBZ, 1 ==> CBNZ | |
13629 | instr[23,5] = simm19 branch offset counted in words | |
13630 | instr[4,0] = rt */ | |
13631 | ||
ef0d8ffc NC |
13632 | uint32_t size = INSTR (31, 31); |
13633 | uint32_t op = INSTR (24, 24); | |
2e8cf49e NC |
13634 | int32_t offset = simm32 (aarch64_get_instr (cpu), 23, 5) << 2; |
13635 | ||
13636 | if (size == 0) | |
13637 | { | |
13638 | if (op == 0) | |
13639 | cbz32 (cpu, offset); | |
13640 | else | |
13641 | cbnz32 (cpu, offset); | |
13642 | } | |
13643 | else | |
13644 | { | |
13645 | if (op == 0) | |
13646 | cbz (cpu, offset); | |
13647 | else | |
13648 | cbnz (cpu, offset); | |
13649 | } | |
13650 | } | |
13651 | ||
13652 | static void | |
13653 | dexTestBranchImmediate (sim_cpu *cpu) | |
13654 | { | |
13655 | /* instr[31] = b5 : bit 5 of test bit idx | |
13656 | instr[30,25] = 01 1011 | |
13657 | instr[24] = op : 0 ==> TBZ, 1 == TBNZ | |
13658 | instr[23,19] = b40 : bits 4 to 0 of test bit idx | |
13659 | instr[18,5] = simm14 : signed offset counted in words | |
13660 | instr[4,0] = uimm5 */ | |
13661 | ||
668650d5 | 13662 | uint32_t pos = ((INSTR (31, 31) << 5) | INSTR (23, 19)); |
2e8cf49e NC |
13663 | int32_t offset = simm32 (aarch64_get_instr (cpu), 18, 5) << 2; |
13664 | ||
13665 | NYI_assert (30, 25, 0x1b); | |
13666 | ||
ef0d8ffc | 13667 | if (INSTR (24, 24) == 0) |
2e8cf49e NC |
13668 | tbz (cpu, pos, offset); |
13669 | else | |
13670 | tbnz (cpu, pos, offset); | |
13671 | } | |
13672 | ||
13673 | static void | |
13674 | dexCondBranchImmediate (sim_cpu *cpu) | |
13675 | { | |
13676 | /* instr[31,25] = 010 1010 | |
13677 | instr[24] = op1; op => 00 ==> B.cond | |
13678 | instr[23,5] = simm19 : signed offset counted in words | |
13679 | instr[4] = op0 | |
13680 | instr[3,0] = cond */ | |
13681 | ||
13682 | int32_t offset; | |
ef0d8ffc | 13683 | uint32_t op = ((INSTR (24, 24) << 1) | INSTR (4, 4)); |
2e8cf49e NC |
13684 | |
13685 | NYI_assert (31, 25, 0x2a); | |
13686 | ||
13687 | if (op != 0) | |
13688 | HALT_UNALLOC; | |
13689 | ||
13690 | offset = simm32 (aarch64_get_instr (cpu), 23, 5) << 2; | |
2e8cf49e | 13691 | |
ef0d8ffc | 13692 | bcc (cpu, offset, INSTR (3, 0)); |
2e8cf49e NC |
13693 | } |
13694 | ||
13695 | static void | |
13696 | dexBranchRegister (sim_cpu *cpu) | |
13697 | { | |
13698 | /* instr[31,25] = 110 1011 | |
13699 | instr[24,21] = op : 0 ==> BR, 1 => BLR, 2 => RET, 3 => ERET, 4 => DRPS | |
13700 | instr[20,16] = op2 : must be 11111 | |
13701 | instr[15,10] = op3 : must be 000000 | |
13702 | instr[4,0] = op2 : must be 11111. */ | |
13703 | ||
ef0d8ffc NC |
13704 | uint32_t op = INSTR (24, 21); |
13705 | uint32_t op2 = INSTR (20, 16); | |
13706 | uint32_t op3 = INSTR (15, 10); | |
13707 | uint32_t op4 = INSTR (4, 0); | |
2e8cf49e NC |
13708 | |
13709 | NYI_assert (31, 25, 0x6b); | |
13710 | ||
13711 | if (op2 != 0x1F || op3 != 0 || op4 != 0) | |
13712 | HALT_UNALLOC; | |
13713 | ||
13714 | if (op == 0) | |
13715 | br (cpu); | |
13716 | ||
13717 | else if (op == 1) | |
13718 | blr (cpu); | |
13719 | ||
13720 | else if (op == 2) | |
13721 | ret (cpu); | |
13722 | ||
13723 | else | |
13724 | { | |
ef0d8ffc | 13725 | /* ERET and DRPS accept 0b11111 for rn = instr [4,0]. */ |
2e8cf49e | 13726 | /* anything else is unallocated. */ |
ef0d8ffc | 13727 | uint32_t rn = INSTR (4, 0); |
2e8cf49e NC |
13728 | |
13729 | if (rn != 0x1f) | |
13730 | HALT_UNALLOC; | |
13731 | ||
13732 | if (op == 4 || op == 5) | |
13733 | HALT_NYI; | |
13734 | ||
13735 | HALT_UNALLOC; | |
13736 | } | |
13737 | } | |
13738 | ||
13739 | /* FIXME: We should get the Angel SWI values from ../../libgloss/aarch64/svc.h | |
13740 | but this may not be available. So instead we define the values we need | |
13741 | here. */ | |
13742 | #define AngelSVC_Reason_Open 0x01 | |
13743 | #define AngelSVC_Reason_Close 0x02 | |
13744 | #define AngelSVC_Reason_Write 0x05 | |
13745 | #define AngelSVC_Reason_Read 0x06 | |
13746 | #define AngelSVC_Reason_IsTTY 0x09 | |
13747 | #define AngelSVC_Reason_Seek 0x0A | |
13748 | #define AngelSVC_Reason_FLen 0x0C | |
13749 | #define AngelSVC_Reason_Remove 0x0E | |
13750 | #define AngelSVC_Reason_Rename 0x0F | |
13751 | #define AngelSVC_Reason_Clock 0x10 | |
13752 | #define AngelSVC_Reason_Time 0x11 | |
13753 | #define AngelSVC_Reason_System 0x12 | |
13754 | #define AngelSVC_Reason_Errno 0x13 | |
13755 | #define AngelSVC_Reason_GetCmdLine 0x15 | |
13756 | #define AngelSVC_Reason_HeapInfo 0x16 | |
13757 | #define AngelSVC_Reason_ReportException 0x18 | |
13758 | #define AngelSVC_Reason_Elapsed 0x30 | |
13759 | ||
13760 | ||
13761 | static void | |
13762 | handle_halt (sim_cpu *cpu, uint32_t val) | |
13763 | { | |
13764 | uint64_t result = 0; | |
13765 | ||
2cdad34c | 13766 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
2e8cf49e NC |
13767 | if (val != 0xf000) |
13768 | { | |
13769 | TRACE_SYSCALL (cpu, " HLT [0x%x]", val); | |
13770 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13771 | sim_stopped, SIM_SIGTRAP); | |
13772 | } | |
13773 | ||
13774 | /* We have encountered an Angel SVC call. See if we can process it. */ | |
13775 | switch (aarch64_get_reg_u32 (cpu, 0, NO_SP)) | |
13776 | { | |
13777 | case AngelSVC_Reason_HeapInfo: | |
13778 | { | |
13779 | /* Get the values. */ | |
13780 | uint64_t stack_top = aarch64_get_stack_start (cpu); | |
13781 | uint64_t heap_base = aarch64_get_heap_start (cpu); | |
13782 | ||
13783 | /* Get the pointer */ | |
13784 | uint64_t ptr = aarch64_get_reg_u64 (cpu, 1, SP_OK); | |
13785 | ptr = aarch64_get_mem_u64 (cpu, ptr); | |
13786 | ||
13787 | /* Fill in the memory block. */ | |
13788 | /* Start addr of heap. */ | |
13789 | aarch64_set_mem_u64 (cpu, ptr + 0, heap_base); | |
13790 | /* End addr of heap. */ | |
13791 | aarch64_set_mem_u64 (cpu, ptr + 8, stack_top); | |
13792 | /* Lowest stack addr. */ | |
13793 | aarch64_set_mem_u64 (cpu, ptr + 16, heap_base); | |
13794 | /* Initial stack addr. */ | |
13795 | aarch64_set_mem_u64 (cpu, ptr + 24, stack_top); | |
13796 | ||
13797 | TRACE_SYSCALL (cpu, " AngelSVC: Get Heap Info"); | |
13798 | } | |
13799 | break; | |
13800 | ||
13801 | case AngelSVC_Reason_Open: | |
13802 | { | |
13803 | /* Get the pointer */ | |
13804 | /* uint64_t ptr = aarch64_get_reg_u64 (cpu, 1, SP_OK);. */ | |
13805 | /* FIXME: For now we just assume that we will only be asked | |
13806 | to open the standard file descriptors. */ | |
13807 | static int fd = 0; | |
13808 | result = fd ++; | |
13809 | ||
13810 | TRACE_SYSCALL (cpu, " AngelSVC: Open file %d", fd - 1); | |
13811 | } | |
13812 | break; | |
13813 | ||
13814 | case AngelSVC_Reason_Close: | |
13815 | { | |
13816 | uint64_t fh = aarch64_get_reg_u64 (cpu, 1, SP_OK); | |
13817 | TRACE_SYSCALL (cpu, " AngelSVC: Close file %d", (int) fh); | |
13818 | result = 0; | |
13819 | } | |
13820 | break; | |
13821 | ||
13822 | case AngelSVC_Reason_Errno: | |
13823 | result = 0; | |
13824 | TRACE_SYSCALL (cpu, " AngelSVC: Get Errno"); | |
13825 | break; | |
13826 | ||
13827 | case AngelSVC_Reason_Clock: | |
13828 | result = | |
13829 | #ifdef CLOCKS_PER_SEC | |
13830 | (CLOCKS_PER_SEC >= 100) | |
13831 | ? (clock () / (CLOCKS_PER_SEC / 100)) | |
13832 | : ((clock () * 100) / CLOCKS_PER_SEC) | |
13833 | #else | |
13834 | /* Presume unix... clock() returns microseconds. */ | |
13835 | (clock () / 10000) | |
13836 | #endif | |
13837 | ; | |
13838 | TRACE_SYSCALL (cpu, " AngelSVC: Get Clock"); | |
13839 | break; | |
13840 | ||
13841 | case AngelSVC_Reason_GetCmdLine: | |
13842 | { | |
13843 | /* Get the pointer */ | |
13844 | uint64_t ptr = aarch64_get_reg_u64 (cpu, 1, SP_OK); | |
13845 | ptr = aarch64_get_mem_u64 (cpu, ptr); | |
13846 | ||
13847 | /* FIXME: No command line for now. */ | |
13848 | aarch64_set_mem_u64 (cpu, ptr, 0); | |
13849 | TRACE_SYSCALL (cpu, " AngelSVC: Get Command Line"); | |
13850 | } | |
13851 | break; | |
13852 | ||
13853 | case AngelSVC_Reason_IsTTY: | |
13854 | result = 1; | |
13855 | TRACE_SYSCALL (cpu, " AngelSVC: IsTTY ?"); | |
13856 | break; | |
13857 | ||
13858 | case AngelSVC_Reason_Write: | |
13859 | { | |
13860 | /* Get the pointer */ | |
13861 | uint64_t ptr = aarch64_get_reg_u64 (cpu, 1, SP_OK); | |
13862 | /* Get the write control block. */ | |
13863 | uint64_t fd = aarch64_get_mem_u64 (cpu, ptr); | |
13864 | uint64_t buf = aarch64_get_mem_u64 (cpu, ptr + 8); | |
13865 | uint64_t len = aarch64_get_mem_u64 (cpu, ptr + 16); | |
13866 | ||
13867 | TRACE_SYSCALL (cpu, "write of %" PRIx64 " bytes from %" | |
13868 | PRIx64 " on descriptor %" PRIx64, | |
13869 | len, buf, fd); | |
13870 | ||
13871 | if (len > 1280) | |
13872 | { | |
13873 | TRACE_SYSCALL (cpu, | |
13874 | " AngelSVC: Write: Suspiciously long write: %ld", | |
13875 | (long) len); | |
13876 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13877 | sim_stopped, SIM_SIGBUS); | |
13878 | } | |
13879 | else if (fd == 1) | |
13880 | { | |
13881 | printf ("%.*s", (int) len, aarch64_get_mem_ptr (cpu, buf)); | |
2e8cf49e NC |
13882 | } |
13883 | else if (fd == 2) | |
13884 | { | |
13885 | TRACE (cpu, 0, "\n"); | |
13886 | sim_io_eprintf (CPU_STATE (cpu), "%.*s", | |
13887 | (int) len, aarch64_get_mem_ptr (cpu, buf)); | |
13888 | TRACE (cpu, 0, "\n"); | |
13889 | } | |
13890 | else | |
13891 | { | |
13892 | TRACE_SYSCALL (cpu, | |
13893 | " AngelSVC: Write: Unexpected file handle: %d", | |
13894 | (int) fd); | |
13895 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13896 | sim_stopped, SIM_SIGABRT); | |
13897 | } | |
13898 | } | |
13899 | break; | |
13900 | ||
13901 | case AngelSVC_Reason_ReportException: | |
13902 | { | |
13903 | /* Get the pointer */ | |
13904 | uint64_t ptr = aarch64_get_reg_u64 (cpu, 1, SP_OK); | |
13905 | /*ptr = aarch64_get_mem_u64 (cpu, ptr);. */ | |
13906 | uint64_t type = aarch64_get_mem_u64 (cpu, ptr); | |
13907 | uint64_t state = aarch64_get_mem_u64 (cpu, ptr + 8); | |
13908 | ||
13909 | TRACE_SYSCALL (cpu, | |
13910 | "Angel Exception: type 0x%" PRIx64 " state %" PRIx64, | |
13911 | type, state); | |
13912 | ||
13913 | if (type == 0x20026) | |
13914 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13915 | sim_exited, state); | |
13916 | else | |
13917 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13918 | sim_stopped, SIM_SIGINT); | |
13919 | } | |
13920 | break; | |
13921 | ||
13922 | case AngelSVC_Reason_Read: | |
13923 | case AngelSVC_Reason_FLen: | |
13924 | case AngelSVC_Reason_Seek: | |
13925 | case AngelSVC_Reason_Remove: | |
13926 | case AngelSVC_Reason_Time: | |
13927 | case AngelSVC_Reason_System: | |
13928 | case AngelSVC_Reason_Rename: | |
13929 | case AngelSVC_Reason_Elapsed: | |
13930 | default: | |
13931 | TRACE_SYSCALL (cpu, " HLT [Unknown angel %x]", | |
13932 | aarch64_get_reg_u32 (cpu, 0, NO_SP)); | |
13933 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13934 | sim_stopped, SIM_SIGTRAP); | |
13935 | } | |
13936 | ||
13937 | aarch64_set_reg_u64 (cpu, 0, NO_SP, result); | |
13938 | } | |
13939 | ||
13940 | static void | |
13941 | dexExcpnGen (sim_cpu *cpu) | |
13942 | { | |
13943 | /* instr[31:24] = 11010100 | |
13944 | instr[23,21] = opc : 000 ==> GEN EXCPN, 001 ==> BRK | |
13945 | 010 ==> HLT, 101 ==> DBG GEN EXCPN | |
13946 | instr[20,5] = imm16 | |
13947 | instr[4,2] = opc2 000 ==> OK, ow ==> UNALLOC | |
13948 | instr[1,0] = LL : discriminates opc */ | |
13949 | ||
ef0d8ffc NC |
13950 | uint32_t opc = INSTR (23, 21); |
13951 | uint32_t imm16 = INSTR (20, 5); | |
13952 | uint32_t opc2 = INSTR (4, 2); | |
2e8cf49e NC |
13953 | uint32_t LL; |
13954 | ||
13955 | NYI_assert (31, 24, 0xd4); | |
13956 | ||
13957 | if (opc2 != 0) | |
13958 | HALT_UNALLOC; | |
13959 | ||
ef0d8ffc | 13960 | LL = INSTR (1, 0); |
2e8cf49e NC |
13961 | |
13962 | /* We only implement HLT and BRK for now. */ | |
13963 | if (opc == 1 && LL == 0) | |
13964 | { | |
13965 | TRACE_EVENTS (cpu, " BRK [0x%x]", imm16); | |
13966 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), | |
13967 | sim_exited, aarch64_get_reg_s32 (cpu, R0, SP_OK)); | |
13968 | } | |
13969 | ||
13970 | if (opc == 2 && LL == 0) | |
13971 | handle_halt (cpu, imm16); | |
13972 | ||
13973 | else if (opc == 0 || opc == 5) | |
13974 | HALT_NYI; | |
13975 | ||
13976 | else | |
13977 | HALT_UNALLOC; | |
13978 | } | |
13979 | ||
5ab6d79e | 13980 | /* Stub for accessing system registers. */ |
caa8d700 NC |
13981 | |
13982 | static uint64_t | |
13983 | system_get (sim_cpu *cpu, unsigned op0, unsigned op1, unsigned crn, | |
13984 | unsigned crm, unsigned op2) | |
13985 | { | |
13986 | if (crn == 0 && op1 == 3 && crm == 0 && op2 == 7) | |
13987 | /* DCZID_EL0 - the Data Cache Zero ID register. | |
13988 | We do not support DC ZVA at the moment, so | |
5ab6d79e NC |
13989 | we return a value with the disable bit set. |
13990 | We implement support for the DCZID register since | |
13991 | it is used by the C library's memset function. */ | |
caa8d700 NC |
13992 | return ((uint64_t) 1) << 4; |
13993 | ||
5ab6d79e NC |
13994 | if (crn == 0 && op1 == 3 && crm == 0 && op2 == 1) |
13995 | /* Cache Type Register. */ | |
13996 | return 0x80008000UL; | |
13997 | ||
13998 | if (crn == 13 && op1 == 3 && crm == 0 && op2 == 2) | |
13999 | /* TPIDR_EL0 - thread pointer id. */ | |
14000 | return aarch64_get_thread_id (cpu); | |
14001 | ||
14002 | if (op1 == 3 && crm == 4 && op2 == 0) | |
14003 | return aarch64_get_FPCR (cpu); | |
14004 | ||
14005 | if (op1 == 3 && crm == 4 && op2 == 1) | |
14006 | return aarch64_get_FPSR (cpu); | |
14007 | ||
14008 | else if (op1 == 3 && crm == 2 && op2 == 0) | |
14009 | return aarch64_get_CPSR (cpu); | |
14010 | ||
caa8d700 NC |
14011 | HALT_NYI; |
14012 | } | |
14013 | ||
5ab6d79e NC |
14014 | static void |
14015 | system_set (sim_cpu *cpu, unsigned op0, unsigned op1, unsigned crn, | |
14016 | unsigned crm, unsigned op2, uint64_t val) | |
14017 | { | |
14018 | if (op1 == 3 && crm == 4 && op2 == 0) | |
14019 | aarch64_set_FPCR (cpu, val); | |
14020 | ||
14021 | else if (op1 == 3 && crm == 4 && op2 == 1) | |
14022 | aarch64_set_FPSR (cpu, val); | |
14023 | ||
14024 | else if (op1 == 3 && crm == 2 && op2 == 0) | |
14025 | aarch64_set_CPSR (cpu, val); | |
14026 | ||
14027 | else | |
14028 | HALT_NYI; | |
14029 | } | |
ef0d8ffc | 14030 | |
caa8d700 NC |
14031 | static void |
14032 | do_mrs (sim_cpu *cpu) | |
14033 | { | |
5ab6d79e | 14034 | /* instr[31:20] = 1101 0101 0001 1 |
caa8d700 NC |
14035 | instr[19] = op0 |
14036 | instr[18,16] = op1 | |
14037 | instr[15,12] = CRn | |
14038 | instr[11,8] = CRm | |
14039 | instr[7,5] = op2 | |
14040 | instr[4,0] = Rt */ | |
ef0d8ffc NC |
14041 | unsigned sys_op0 = INSTR (19, 19) + 2; |
14042 | unsigned sys_op1 = INSTR (18, 16); | |
14043 | unsigned sys_crn = INSTR (15, 12); | |
14044 | unsigned sys_crm = INSTR (11, 8); | |
14045 | unsigned sys_op2 = INSTR (7, 5); | |
14046 | unsigned rt = INSTR (4, 0); | |
caa8d700 | 14047 | |
2cdad34c | 14048 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
caa8d700 NC |
14049 | aarch64_set_reg_u64 (cpu, rt, NO_SP, |
14050 | system_get (cpu, sys_op0, sys_op1, sys_crn, sys_crm, sys_op2)); | |
14051 | } | |
14052 | ||
5ab6d79e NC |
14053 | static void |
14054 | do_MSR_immediate (sim_cpu *cpu) | |
14055 | { | |
14056 | /* instr[31:19] = 1101 0101 0000 0 | |
14057 | instr[18,16] = op1 | |
14058 | instr[15,12] = 0100 | |
14059 | instr[11,8] = CRm | |
14060 | instr[7,5] = op2 | |
14061 | instr[4,0] = 1 1111 */ | |
14062 | ||
ef0d8ffc NC |
14063 | unsigned op1 = INSTR (18, 16); |
14064 | /*unsigned crm = INSTR (11, 8);*/ | |
14065 | unsigned op2 = INSTR (7, 5); | |
5ab6d79e NC |
14066 | |
14067 | NYI_assert (31, 19, 0x1AA0); | |
14068 | NYI_assert (15, 12, 0x4); | |
14069 | NYI_assert (4, 0, 0x1F); | |
14070 | ||
14071 | if (op1 == 0) | |
14072 | { | |
14073 | if (op2 == 5) | |
14074 | HALT_NYI; /* set SPSel. */ | |
14075 | else | |
14076 | HALT_UNALLOC; | |
14077 | } | |
14078 | else if (op1 == 3) | |
14079 | { | |
14080 | if (op2 == 6) | |
14081 | HALT_NYI; /* set DAIFset. */ | |
14082 | else if (op2 == 7) | |
14083 | HALT_NYI; /* set DAIFclr. */ | |
14084 | else | |
14085 | HALT_UNALLOC; | |
14086 | } | |
14087 | else | |
14088 | HALT_UNALLOC; | |
14089 | } | |
14090 | ||
14091 | static void | |
14092 | do_MSR_reg (sim_cpu *cpu) | |
14093 | { | |
14094 | /* instr[31:20] = 1101 0101 0001 | |
14095 | instr[19] = op0 | |
14096 | instr[18,16] = op1 | |
14097 | instr[15,12] = CRn | |
14098 | instr[11,8] = CRm | |
14099 | instr[7,5] = op2 | |
14100 | instr[4,0] = Rt */ | |
14101 | ||
ef0d8ffc NC |
14102 | unsigned sys_op0 = INSTR (19, 19) + 2; |
14103 | unsigned sys_op1 = INSTR (18, 16); | |
14104 | unsigned sys_crn = INSTR (15, 12); | |
14105 | unsigned sys_crm = INSTR (11, 8); | |
14106 | unsigned sys_op2 = INSTR (7, 5); | |
14107 | unsigned rt = INSTR (4, 0); | |
5ab6d79e NC |
14108 | |
14109 | NYI_assert (31, 20, 0xD51); | |
ef0d8ffc | 14110 | |
2cdad34c | 14111 | TRACE_DECODE (cpu, "emulated at line %d", __LINE__); |
5ab6d79e NC |
14112 | system_set (cpu, sys_op0, sys_op1, sys_crn, sys_crm, sys_op2, |
14113 | aarch64_get_reg_u64 (cpu, rt, NO_SP)); | |
14114 | } | |
14115 | ||
14116 | static void | |
ef0d8ffc | 14117 | do_SYS (sim_cpu *cpu) |
5ab6d79e NC |
14118 | { |
14119 | /* instr[31,19] = 1101 0101 0000 1 | |
14120 | instr[18,16] = op1 | |
14121 | instr[15,12] = CRn | |
14122 | instr[11,8] = CRm | |
14123 | instr[7,5] = op2 | |
14124 | instr[4,0] = Rt */ | |
14125 | NYI_assert (31, 19, 0x1AA1); | |
14126 | ||
14127 | /* FIXME: For now we just silently accept system ops. */ | |
14128 | } | |
ef0d8ffc | 14129 | |
2e8cf49e NC |
14130 | static void |
14131 | dexSystem (sim_cpu *cpu) | |
14132 | { | |
14133 | /* instr[31:22] = 1101 01010 0 | |
14134 | instr[21] = L | |
14135 | instr[20,19] = op0 | |
14136 | instr[18,16] = op1 | |
14137 | instr[15,12] = CRn | |
14138 | instr[11,8] = CRm | |
14139 | instr[7,5] = op2 | |
14140 | instr[4,0] = uimm5 */ | |
14141 | ||
14142 | /* We are interested in HINT, DSB, DMB and ISB | |
14143 | ||
14144 | Hint #0 encodes NOOP (this is the only hint we care about) | |
14145 | L == 0, op0 == 0, op1 = 011, CRn = 0010, Rt = 11111, | |
14146 | CRm op2 != 0000 000 OR CRm op2 == 0000 000 || CRm op > 0000 101 | |
14147 | ||
14148 | DSB, DMB, ISB are data store barrier, data memory barrier and | |
14149 | instruction store barrier, respectively, where | |
14150 | ||
14151 | L == 0, op0 == 0, op1 = 011, CRn = 0011, Rt = 11111, | |
14152 | op2 : DSB ==> 100, DMB ==> 101, ISB ==> 110 | |
14153 | CRm<3:2> ==> domain, CRm<1:0> ==> types, | |
14154 | domain : 00 ==> OuterShareable, 01 ==> Nonshareable, | |
14155 | 10 ==> InerShareable, 11 ==> FullSystem | |
14156 | types : 01 ==> Reads, 10 ==> Writes, | |
14157 | 11 ==> All, 00 ==> All (domain == FullSystem). */ | |
14158 | ||
ef0d8ffc | 14159 | unsigned rt = INSTR (4, 0); |
2e8cf49e NC |
14160 | |
14161 | NYI_assert (31, 22, 0x354); | |
14162 | ||
5ab6d79e | 14163 | switch (INSTR (21, 12)) |
2e8cf49e NC |
14164 | { |
14165 | case 0x032: | |
14166 | if (rt == 0x1F) | |
14167 | { | |
14168 | /* NOP has CRm != 0000 OR. */ | |
14169 | /* (CRm == 0000 AND (op2 == 000 OR op2 > 101)). */ | |
ef0d8ffc NC |
14170 | uint32_t crm = INSTR (11, 8); |
14171 | uint32_t op2 = INSTR (7, 5); | |
2e8cf49e NC |
14172 | |
14173 | if (crm != 0 || (op2 == 0 || op2 > 5)) | |
14174 | { | |
14175 | /* Actually call nop method so we can reimplement it later. */ | |
14176 | nop (cpu); | |
14177 | return; | |
14178 | } | |
14179 | } | |
14180 | HALT_NYI; | |
14181 | ||
14182 | case 0x033: | |
14183 | { | |
ef0d8ffc | 14184 | uint32_t op2 = INSTR (7, 5); |
2e8cf49e NC |
14185 | |
14186 | switch (op2) | |
14187 | { | |
caa8d700 | 14188 | case 2: HALT_NYI; |
2e8cf49e NC |
14189 | case 4: dsb (cpu); return; |
14190 | case 5: dmb (cpu); return; | |
14191 | case 6: isb (cpu); return; | |
2e8cf49e NC |
14192 | default: HALT_UNALLOC; |
14193 | } | |
14194 | } | |
14195 | ||
14196 | case 0x3B0: | |
2e8cf49e NC |
14197 | case 0x3B4: |
14198 | case 0x3BD: | |
caa8d700 | 14199 | do_mrs (cpu); |
2e8cf49e NC |
14200 | return; |
14201 | ||
14202 | case 0x0B7: | |
5ab6d79e | 14203 | do_SYS (cpu); /* DC is an alias of SYS. */ |
2e8cf49e NC |
14204 | return; |
14205 | ||
14206 | default: | |
ef0d8ffc | 14207 | if (INSTR (21, 20) == 0x1) |
5ab6d79e NC |
14208 | do_MSR_reg (cpu); |
14209 | else if (INSTR (21, 19) == 0 && INSTR (15, 12) == 0x4) | |
14210 | do_MSR_immediate (cpu); | |
14211 | else | |
14212 | HALT_NYI; | |
caa8d700 | 14213 | return; |
2e8cf49e NC |
14214 | } |
14215 | } | |
14216 | ||
14217 | static void | |
14218 | dexBr (sim_cpu *cpu) | |
14219 | { | |
14220 | /* uint32_t group = dispatchGroup (aarch64_get_instr (cpu)); | |
14221 | assert group == GROUP_BREXSYS_1010 || group == GROUP_BREXSYS_1011 | |
14222 | bits [31,29] of a BrExSys are the secondary dispatch vector. */ | |
14223 | uint32_t group2 = dispatchBrExSys (aarch64_get_instr (cpu)); | |
14224 | ||
14225 | switch (group2) | |
14226 | { | |
14227 | case BR_IMM_000: | |
14228 | return dexBranchImmediate (cpu); | |
14229 | ||
14230 | case BR_IMMCMP_001: | |
14231 | /* Compare has bit 25 clear while test has it set. */ | |
ef0d8ffc | 14232 | if (!INSTR (25, 25)) |
2e8cf49e NC |
14233 | dexCompareBranchImmediate (cpu); |
14234 | else | |
14235 | dexTestBranchImmediate (cpu); | |
14236 | return; | |
14237 | ||
14238 | case BR_IMMCOND_010: | |
14239 | /* This is a conditional branch if bit 25 is clear otherwise | |
14240 | unallocated. */ | |
ef0d8ffc | 14241 | if (!INSTR (25, 25)) |
2e8cf49e NC |
14242 | dexCondBranchImmediate (cpu); |
14243 | else | |
14244 | HALT_UNALLOC; | |
14245 | return; | |
14246 | ||
14247 | case BR_UNALLOC_011: | |
14248 | HALT_UNALLOC; | |
14249 | ||
14250 | case BR_IMM_100: | |
14251 | dexBranchImmediate (cpu); | |
14252 | return; | |
14253 | ||
14254 | case BR_IMMCMP_101: | |
14255 | /* Compare has bit 25 clear while test has it set. */ | |
ef0d8ffc | 14256 | if (!INSTR (25, 25)) |
2e8cf49e NC |
14257 | dexCompareBranchImmediate (cpu); |
14258 | else | |
14259 | dexTestBranchImmediate (cpu); | |
14260 | return; | |
14261 | ||
14262 | case BR_REG_110: | |
14263 | /* Unconditional branch reg has bit 25 set. */ | |
ef0d8ffc | 14264 | if (INSTR (25, 25)) |
2e8cf49e NC |
14265 | dexBranchRegister (cpu); |
14266 | ||
14267 | /* This includes both Excpn Gen, System and unalloc operations. | |
14268 | We need to decode the Excpn Gen operation BRK so we can plant | |
14269 | debugger entry points. | |
ef0d8ffc | 14270 | Excpn Gen operations have instr [24] = 0. |
2e8cf49e NC |
14271 | we need to decode at least one of the System operations NOP |
14272 | which is an alias for HINT #0. | |
ef0d8ffc NC |
14273 | System operations have instr [24,22] = 100. */ |
14274 | else if (INSTR (24, 24) == 0) | |
2e8cf49e NC |
14275 | dexExcpnGen (cpu); |
14276 | ||
ef0d8ffc | 14277 | else if (INSTR (24, 22) == 4) |
2e8cf49e NC |
14278 | dexSystem (cpu); |
14279 | ||
14280 | else | |
14281 | HALT_UNALLOC; | |
14282 | ||
14283 | return; | |
14284 | ||
14285 | case BR_UNALLOC_111: | |
14286 | HALT_UNALLOC; | |
14287 | ||
14288 | default: | |
14289 | /* Should never reach here. */ | |
14290 | HALT_NYI; | |
14291 | } | |
14292 | } | |
14293 | ||
14294 | static void | |
14295 | aarch64_decode_and_execute (sim_cpu *cpu, uint64_t pc) | |
14296 | { | |
14297 | /* We need to check if gdb wants an in here. */ | |
14298 | /* checkBreak (cpu);. */ | |
14299 | ||
14300 | uint64_t group = dispatchGroup (aarch64_get_instr (cpu)); | |
14301 | ||
14302 | switch (group) | |
14303 | { | |
14304 | case GROUP_PSEUDO_0000: dexPseudo (cpu); break; | |
14305 | case GROUP_LDST_0100: dexLdSt (cpu); break; | |
14306 | case GROUP_DPREG_0101: dexDPReg (cpu); break; | |
14307 | case GROUP_LDST_0110: dexLdSt (cpu); break; | |
14308 | case GROUP_ADVSIMD_0111: dexAdvSIMD0 (cpu); break; | |
14309 | case GROUP_DPIMM_1000: dexDPImm (cpu); break; | |
14310 | case GROUP_DPIMM_1001: dexDPImm (cpu); break; | |
14311 | case GROUP_BREXSYS_1010: dexBr (cpu); break; | |
14312 | case GROUP_BREXSYS_1011: dexBr (cpu); break; | |
14313 | case GROUP_LDST_1100: dexLdSt (cpu); break; | |
14314 | case GROUP_DPREG_1101: dexDPReg (cpu); break; | |
14315 | case GROUP_LDST_1110: dexLdSt (cpu); break; | |
14316 | case GROUP_ADVSIMD_1111: dexAdvSIMD1 (cpu); break; | |
14317 | ||
14318 | case GROUP_UNALLOC_0001: | |
14319 | case GROUP_UNALLOC_0010: | |
14320 | case GROUP_UNALLOC_0011: | |
14321 | HALT_UNALLOC; | |
14322 | ||
14323 | default: | |
14324 | /* Should never reach here. */ | |
14325 | HALT_NYI; | |
14326 | } | |
14327 | } | |
14328 | ||
b14bdb3b | 14329 | static bfd_boolean |
2e8cf49e NC |
14330 | aarch64_step (sim_cpu *cpu) |
14331 | { | |
14332 | uint64_t pc = aarch64_get_PC (cpu); | |
14333 | ||
14334 | if (pc == TOP_LEVEL_RETURN_PC) | |
14335 | return FALSE; | |
14336 | ||
14337 | aarch64_set_next_PC (cpu, pc + 4); | |
c7be4414 JW |
14338 | |
14339 | /* Code is always little-endian. */ | |
14340 | sim_core_read_buffer (CPU_STATE (cpu), cpu, read_map, | |
14341 | & aarch64_get_instr (cpu), pc, 4); | |
14342 | aarch64_get_instr (cpu) = endian_le2h_4 (aarch64_get_instr (cpu)); | |
2e8cf49e | 14343 | |
57aa1742 | 14344 | TRACE_INSN (cpu, " pc = %" PRIx64 " instr = %08x", pc, |
1a846c62 MF |
14345 | aarch64_get_instr (cpu)); |
14346 | TRACE_DISASM (cpu, pc); | |
2e8cf49e NC |
14347 | |
14348 | aarch64_decode_and_execute (cpu, pc); | |
14349 | ||
14350 | return TRUE; | |
14351 | } | |
14352 | ||
14353 | void | |
14354 | aarch64_run (SIM_DESC sd) | |
14355 | { | |
14356 | sim_cpu *cpu = STATE_CPU (sd, 0); | |
14357 | ||
14358 | while (aarch64_step (cpu)) | |
b14bdb3b NC |
14359 | { |
14360 | aarch64_update_PC (cpu); | |
14361 | ||
14362 | if (sim_events_tick (sd)) | |
14363 | sim_events_process (sd); | |
14364 | } | |
2e8cf49e | 14365 | |
b14bdb3b NC |
14366 | sim_engine_halt (sd, cpu, NULL, aarch64_get_PC (cpu), |
14367 | sim_exited, aarch64_get_reg_s32 (cpu, R0, NO_SP)); | |
2e8cf49e NC |
14368 | } |
14369 | ||
14370 | void | |
14371 | aarch64_init (sim_cpu *cpu, uint64_t pc) | |
14372 | { | |
14373 | uint64_t sp = aarch64_get_stack_start (cpu); | |
14374 | ||
14375 | /* Install SP, FP and PC and set LR to -20 | |
14376 | so we can detect a top-level return. */ | |
14377 | aarch64_set_reg_u64 (cpu, SP, SP_OK, sp); | |
14378 | aarch64_set_reg_u64 (cpu, FP, SP_OK, sp); | |
14379 | aarch64_set_reg_u64 (cpu, LR, SP_OK, TOP_LEVEL_RETURN_PC); | |
14380 | aarch64_set_next_PC (cpu, pc); | |
14381 | aarch64_update_PC (cpu); | |
14382 | aarch64_init_LIT_table (); | |
14383 | } |