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d45a4bef JB |
1 | /* r8c.opc --- semantics for r8c opcodes. -*- mode: c -*- |
2 | ||
88b9d363 | 3 | Copyright (C) 2005-2022 Free Software Foundation, Inc. |
d45a4bef JB |
4 | Contributed by Red Hat, Inc. |
5 | ||
6 | This file is part of the GNU simulators. | |
7 | ||
4744ac1b JB |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
d45a4bef | 12 | |
4744ac1b JB |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
d45a4bef JB |
17 | |
18 | You should have received a copy of the GNU General Public License | |
4744ac1b | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
d45a4bef | 20 | |
ea6197bf JB |
21 | /* This must come before any other includes. */ |
22 | #include "defs.h" | |
d45a4bef JB |
23 | |
24 | #include <stdio.h> | |
25 | #include <stdlib.h> | |
26 | ||
f0c4dc40 | 27 | #include "ansidecl.h" |
d45a4bef JB |
28 | #include "cpu.h" |
29 | #include "mem.h" | |
30 | #include "misc.h" | |
31 | #include "int.h" | |
32 | ||
d45a4bef JB |
33 | #define tprintf if (trace) printf |
34 | ||
35 | static unsigned char | |
269e9c18 | 36 | getbyte (void) |
d45a4bef JB |
37 | { |
38 | int tsave = trace; | |
39 | unsigned char b; | |
40 | ||
41 | if (trace == 1) | |
42 | trace = 0; | |
43 | b = mem_get_pc (); | |
44 | regs.r_pc ++; | |
45 | trace = tsave; | |
46 | return b; | |
47 | } | |
48 | ||
49 | #define M16C_ONLY() /* FIXME: add something here */ | |
50 | ||
51 | #define GETBYTE() (op[opi++] = getbyte()) | |
52 | ||
53 | #define UNSUPPORTED() unsupported("unsupported", orig_pc) | |
54 | #define NOTYET() unsupported("unimplemented", orig_pc) | |
55 | ||
56 | static void | |
57 | unsupported (char *tag, int orig_pc) | |
58 | { | |
59 | int i; | |
60 | printf("%s opcode at %08x\n", tag, orig_pc); | |
61 | regs.r_pc = orig_pc; | |
62 | for (i=0; i<2; i++) | |
63 | { | |
64 | int b = mem_get_pc(); | |
65 | printf(" %s", bits(b>>4, 4)); | |
66 | printf(" %s", bits(b, 4)); | |
67 | regs.r_pc ++; | |
68 | } | |
69 | printf("\n"); | |
70 | regs.r_pc = orig_pc; | |
71 | for (i=0; i<6; i++) | |
72 | { | |
73 | printf(" %02x", mem_get_pc ()); | |
74 | regs.r_pc ++; | |
75 | } | |
76 | printf("\n"); | |
77 | exit(1); | |
78 | } | |
79 | ||
80 | static int | |
269e9c18 | 81 | IMM (int bw) |
d45a4bef JB |
82 | { |
83 | int rv = getbyte (); | |
84 | if (bw) | |
85 | rv = rv + 256 * getbyte(); | |
86 | if (bw == 2) | |
87 | rv = rv + 65536 * getbyte(); | |
88 | return rv; | |
89 | } | |
90 | ||
91 | #define IMM4() (immm >= 8 ? 7 - immm : immm + 1) | |
92 | ||
93 | #define UNARY_SOP \ | |
94 | dc = decode_srcdest4 (dest, w); \ | |
95 | v = sign_ext (get_src (dc), w?16:8); | |
96 | ||
97 | #define UNARY_UOP \ | |
98 | dc = decode_srcdest4 (dest, w); \ | |
99 | v = get_src (dc); | |
100 | ||
101 | #define BINARY_SOP \ | |
102 | sc = decode_srcdest4 (srcx, w); \ | |
103 | dc = decode_srcdest4 (dest, w); \ | |
104 | a = sign_ext (get_src (sc), w?16:8); \ | |
105 | b = sign_ext (get_src (dc), w?16:8); | |
106 | ||
107 | #define BINARY_UOP \ | |
108 | sc = decode_srcdest4 (srcx, w); \ | |
109 | dc = decode_srcdest4 (dest, w); \ | |
110 | a = get_src (sc); \ | |
111 | b = get_src (dc); | |
112 | ||
113 | #define carry (FLAG_C ? 1 : 0) | |
114 | ||
115 | static void | |
116 | cmp (int d, int s, int w) | |
117 | { | |
118 | int a, b, f=0; | |
119 | int mask = w ? 0xffff : 0xff; | |
120 | a = d - s; | |
121 | b = sign_ext (d, w?16:8) - sign_ext (s, w?16:8); | |
122 | tprintf ("cmp: %x - %x = %08x, %x - %x = %d\n", | |
123 | d, s, a, | |
124 | sign_ext(d,w?16:8), sign_ext(s,w?16:8), b); | |
125 | ||
126 | if (b == 0) | |
127 | f |= FLAGBIT_Z; | |
128 | if (b & (w ? 0x8000 : 0x80)) | |
129 | f |= FLAGBIT_S; | |
130 | if ((d & mask) >= (s & mask)) | |
131 | f |= FLAGBIT_C; | |
132 | if (b < (w ? -32768 : -128) || b > (w ? 32767 : 127)) | |
133 | f |= FLAGBIT_O; | |
134 | ||
135 | set_flags (FLAGBIT_Z | FLAGBIT_S | FLAGBIT_O | FLAGBIT_C, f); | |
136 | } | |
137 | ||
138 | static void | |
139 | div_op (int s, int u, int x, int w) | |
140 | { | |
141 | srcdest sc; | |
142 | int v, a, b; | |
143 | ||
144 | if (s == -1) | |
145 | s = IMM(w); | |
146 | else | |
147 | { | |
148 | sc = decode_srcdest4 (s, w); | |
149 | s = get_src (sc); | |
150 | } | |
151 | ||
152 | v = get_reg (w ? r2r0 : r0); | |
153 | ||
154 | if (!u) | |
155 | { | |
156 | s = sign_ext (s, w ? 16 : 8); | |
157 | v = sign_ext (v, w ? 16 : 8); | |
158 | } | |
159 | ||
160 | if (s == 0) | |
161 | { | |
162 | set_flags (FLAGBIT_O, FLAGBIT_O); | |
163 | return; | |
164 | } | |
165 | ||
166 | if (u) | |
167 | { | |
168 | a = (unsigned int)v / (unsigned int)s; | |
169 | b = (unsigned int)v % (unsigned int)s; | |
170 | } | |
171 | else | |
172 | { | |
173 | a = v / s; | |
174 | b = v % s; | |
175 | } | |
176 | if (x) | |
177 | { | |
178 | if ((s > 0 && b < 0) | |
179 | || (s < 0 && b > 0)) | |
180 | { | |
181 | a --; | |
182 | b += s; | |
183 | } | |
184 | } | |
185 | tprintf ("%d / %d = %d rem %d\n", v, s, a, b); | |
186 | if ((!u && (a > (w ? 32767 : 127) | |
187 | || a < (w ? -32768 : -129))) | |
188 | || (u && (a > (w ? 65536 : 255)))) | |
189 | set_flags (FLAGBIT_O, FLAGBIT_O); | |
190 | else | |
191 | set_flags (FLAGBIT_O, 0); | |
192 | ||
193 | put_reg (w ? r0 : r0l, a); | |
194 | put_reg (w ? r2 : r0h, b); | |
195 | } | |
196 | ||
197 | static void | |
198 | rot_op (srcdest sd, int rotc, int count) | |
199 | { | |
200 | int mask = (sd.bytes == 2) ? 0xffff : 0xff; | |
201 | int msb = (sd.bytes == 2) ? 0x8000 : 0x80; | |
202 | int v = get_src (sd); | |
203 | int c = carry, ct; | |
204 | ||
205 | tprintf("%s %x by %d\n", rotc ? "rotc" : "rot", v, count); | |
206 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
207 | while (count > 0) | |
208 | { | |
209 | ct = (v & msb) ? 1 : 0; | |
210 | v <<= 1; | |
211 | v |= rotc ? c : ct; | |
212 | v &= mask; | |
213 | c = ct; | |
214 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
215 | count --; | |
216 | } | |
217 | while (count < 0) | |
218 | { | |
219 | ct = v & 1; | |
220 | v >>= 1; | |
221 | v |= (rotc ? c : ct) * msb; | |
222 | c = ct; | |
223 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
224 | count ++; | |
225 | } | |
226 | put_dest (sd, v); | |
227 | set_szc (v, sd.bytes, c); | |
228 | } | |
229 | ||
230 | static void | |
231 | shift_op (srcdest sd, int arith, int count) | |
232 | { | |
233 | int mask = (sd.bytes == 2) ? 0xffff : 0xff; | |
234 | int msb = (sd.bytes == 2) ? 0x8000 : 0x80; | |
235 | int v = get_src (sd); | |
236 | int c = 0; | |
237 | ||
238 | if (sd.bytes == 4) | |
239 | { | |
240 | mask = 0xffffffffU; | |
241 | msb = 0x80000000U; | |
727b6b4b DD |
242 | if (count > 16 || count < -16) |
243 | { | |
244 | fprintf(stderr, "Error: SI shift of %d undefined\n", count); | |
245 | exit(1); | |
246 | } | |
247 | if (count > 16) | |
248 | count = (count - 1) % 16 + 1; | |
249 | if (count < -16) | |
250 | count = -((-count - 1) % 16 + 1); | |
d45a4bef JB |
251 | } |
252 | ||
253 | tprintf("%s %x by %d\n", arith ? "sha" : "shl", v, count); | |
254 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
255 | while (count > 0) | |
256 | { | |
257 | c = (v & msb) ? 1 : 0; | |
258 | v <<= 1; | |
259 | v &= mask; | |
260 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
261 | count --; | |
262 | } | |
263 | while (count < 0) | |
264 | { | |
265 | c = v & 1; | |
266 | if (arith) | |
267 | v = (v & msb) | (v >> 1); | |
268 | else | |
269 | v = (v >> 1) & (msb - 1); | |
270 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
271 | count ++; | |
272 | } | |
273 | put_dest (sd, v); | |
274 | set_szc (v, sd.bytes, c); | |
275 | } | |
276 | ||
277 | #define MATH_OP(dc,s,c,op,carryrel) \ | |
278 | a = get_src(dc); \ | |
279 | b = s & b2mask[dc.bytes]; \ | |
280 | v2 = a op b op c; \ | |
281 | tprintf("0x%x " #op " 0x%x " #op " 0x%x = 0x%x\n", a, b, c, v2); \ | |
282 | a = sign_ext (a, dc.bytes * 8); \ | |
283 | b = sign_ext (s, dc.bytes * 8); \ | |
284 | v = a op b op c; \ | |
285 | tprintf("%d " #op " %d " #op " %d = %d\n", a, b, c, v); \ | |
286 | set_oszc (v, dc.bytes, v2 carryrel); \ | |
287 | put_dest (dc, v2); | |
288 | ||
289 | #define BIT_OP(field,expr) \ | |
290 | dc = decode_bit (field); \ | |
291 | b = get_bit (dc); \ | |
292 | v = expr; \ | |
293 | tprintf ("b=%d, carry=%d, %s = %d\n", b, carry, #expr, v); \ | |
294 | put_bit (dc, v); | |
295 | ||
296 | #define BIT_OPC(field,expr) \ | |
297 | dc = decode_bit (field); \ | |
298 | b = get_bit (dc); \ | |
299 | v = expr; \ | |
300 | tprintf ("b=%d, carry=%d, %s = %d\n", b, carry, #expr, v); \ | |
301 | set_c (v); | |
302 | ||
727b6b4b DD |
303 | /* The "BMcnd dest" opcode uses a different encoding for the */ |
304 | /* condition than other opcodes. */ | |
305 | static int bmcnd_cond_map[] = { | |
306 | 0, 1, 2, 3, 8, 9, 10, 11, 4, 5, 6, 7, 12, 13, 14, 15 | |
307 | }; | |
308 | ||
d45a4bef | 309 | int |
269e9c18 | 310 | decode_r8c (void) |
d45a4bef JB |
311 | { |
312 | unsigned char op[40]; | |
313 | int opi = 0; | |
314 | int v, v2, a, b; | |
315 | int orig_pc = get_reg (pc); | |
316 | srcdest sc, dc; | |
317 | int imm; | |
318 | ||
319 | step_result = M32C_MAKE_STEPPED (); | |
320 | ||
321 | tprintf("trace: decode pc = %05x\n", orig_pc); | |
322 | ||
323 | /** VARY dst 011 100 101 110 111 */ | |
324 | ||
325 | /** 0111 011w 1111 dest ABS.size dest */ | |
326 | ||
327 | UNARY_SOP; | |
328 | a = v<0 ? -v : v; | |
329 | tprintf("abs(%d) = %d\n", v, a); | |
330 | set_osz(a, w+1); | |
331 | put_dest (dc, a); | |
332 | ||
333 | /** 0111 011w 0110 dest ADC.size #IMM,dest */ | |
334 | ||
335 | dc = decode_srcdest4(dest, w); | |
336 | imm = IMM(w); | |
337 | MATH_OP (dc, imm, carry, +, > (w?0xffff:0xff)); | |
338 | ||
339 | /** 1011 000w srcx dest ADC.size src,dest */ | |
340 | ||
341 | sc = decode_srcdest4(srcx, w); | |
342 | dc = decode_srcdest4(dest, w); | |
343 | b = get_src (sc); | |
344 | MATH_OP (dc, b, carry, +, > (w?0xffff:0xff)); | |
345 | ||
346 | /** 0111 011w 1110 dest ADCF.size dest */ | |
347 | ||
348 | dc = decode_srcdest4(dest, w); | |
349 | MATH_OP (dc, 0, carry, +, > (w?0xffff:0xff)); | |
350 | ||
351 | /** 0111 011w 0100 dest ADD.size:G #imm,dest */ | |
352 | ||
353 | dc = decode_srcdest4(dest, w); | |
354 | imm = IMM(w); | |
355 | MATH_OP (dc, imm, 0, +, > (w?0xffff:0xff)); | |
356 | ||
357 | /** 1100 100w immm dest ADD.size:Q #IMM,dest */ | |
358 | ||
359 | dc = decode_srcdest4(dest, w); | |
360 | imm = sign_ext (immm, 4); | |
361 | MATH_OP (dc, imm, 0, +, > (w?0xffff:0xff)); | |
362 | ||
363 | /** 1000 0dst ADD.B:S #IMM8,dst */ | |
364 | ||
365 | imm = IMM(0); | |
366 | dc = decode_dest3 (dst, 0); | |
367 | MATH_OP (dc, imm, 0, +, > 0xff); | |
368 | ||
369 | /** 1010 000w srcx dest ADD.size:G src,dest */ | |
370 | ||
371 | sc = decode_srcdest4(srcx, w); | |
372 | dc = decode_srcdest4(dest, w); | |
373 | b = get_src (sc); | |
374 | MATH_OP (dc, b, 0, +, > (w?0xffff:0xff)); | |
375 | ||
376 | /** 0010 0d sr ADD.B:S src,R0L/R0H */ | |
377 | ||
378 | sc = decode_src2 (sr, 0, d); | |
379 | dc = decode_dest1 (d, 0); | |
380 | b = get_src (sc); | |
381 | MATH_OP (dc, b, 0, +, > 0xff); | |
382 | ||
383 | /** 0111 110w 1110 1011 ADD.size:G #IMM,sp */ | |
384 | ||
385 | dc = reg_sd (sp); | |
386 | imm = sign_ext (IMM(w), w?16:8); | |
387 | MATH_OP (dc, imm, 0, +, > 0xffff); | |
388 | ||
389 | /** 0111 1101 1011 immm ADD.size:Q #IMM,sp */ | |
390 | ||
391 | dc = reg_sd (sp); | |
392 | imm = sign_ext (immm, 4); | |
393 | MATH_OP (dc, imm, 0, +, > 0xffff); | |
394 | ||
395 | /** 1111 100w immm dest ADJNZ.size #IMM,dest,label */ | |
396 | ||
397 | UNARY_UOP; | |
398 | imm = sign_ext(immm, 4); | |
399 | tprintf("%x + %d = %x\n", v, imm, v+imm); | |
400 | v += imm; | |
401 | put_dest (dc, v); | |
402 | a = sign_ext (IMM(0), 8); | |
403 | if ((v & (w ? 0xffff : 0xff)) != 0) | |
404 | { | |
405 | tprintf("jmp: %x + 2 + %d = ", get_reg (pc), a); | |
406 | put_reg (pc, orig_pc + 2 + a); | |
407 | tprintf("%x\n", get_reg (pc)); | |
408 | } | |
409 | ||
410 | /** 0111 011w 0010 dest AND.size:G #IMM,dest */ | |
411 | ||
412 | UNARY_UOP; | |
413 | imm = IMM(w); | |
414 | tprintf ("%x & %x = %x\n", v, imm, v & imm); | |
415 | v &= imm; | |
416 | set_sz (v, w+1); | |
417 | put_dest (dc, v); | |
418 | ||
419 | /** 1001 0dst AND.B:S #IMM8,dest */ | |
420 | ||
421 | imm = IMM(0); | |
422 | dc = decode_dest3 (dst, 0); | |
423 | v = get_src (dc); | |
424 | tprintf("%x & %x = %x\n", v, imm, v & imm); | |
425 | v &= imm; | |
426 | set_sz (v, 1); | |
427 | put_dest (dc, v); | |
428 | ||
429 | /** 1001 000w srcx dest AND.size:G src.dest */ | |
430 | ||
431 | BINARY_UOP; | |
432 | tprintf ("%x & %x = %x\n", a, b, a & b); | |
433 | v = a & b; | |
434 | set_sz (v, w+1); | |
435 | put_dest (dc, v); | |
436 | ||
437 | /** 0001 0d sr AND.B:S src,R0L/R0H */ | |
438 | ||
439 | sc = decode_src2 (sr, 0, d); | |
440 | dc = decode_dest1 (d, 0); | |
441 | a = get_src (sc); | |
442 | b = get_src (dc); | |
443 | v = a & b; | |
444 | tprintf("%x & %x = %x\n", a, b, v); | |
445 | set_sz (v, 1); | |
446 | put_dest (dc, v); | |
447 | ||
448 | /** 0111 1110 0100 srcx BAND src */ | |
449 | ||
450 | BIT_OPC (srcx, b & carry); | |
451 | ||
452 | /** 0111 1110 1000 dest BCLR:G dest */ | |
453 | ||
454 | dc = decode_bit (dest); | |
455 | put_bit (dc, 0); | |
456 | ||
457 | /** 0100 0bit BCLR:S bit,base:11[SB] */ | |
458 | ||
459 | dc = decode_bit11 (bit); | |
460 | put_bit (dc, 0); | |
461 | ||
462 | /** 0111 1110 0010 dest BMcnd dest */ | |
463 | ||
464 | dc = decode_bit (dest); | |
727b6b4b | 465 | if (condition_true (bmcnd_cond_map [IMM (0) & 15])) |
d45a4bef JB |
466 | put_bit (dc, 1); |
467 | else | |
468 | put_bit (dc, 0); | |
469 | ||
470 | /** 0111 1101 1101 cond BMcnd C */ | |
471 | ||
472 | if (condition_true (cond)) | |
473 | set_c (1); | |
474 | else | |
475 | set_c (0); | |
476 | ||
477 | /** 0111 1110 0101 srcx BNAND src */ | |
478 | ||
ed25d732 | 479 | BIT_OPC (srcx, (!b) & carry); |
d45a4bef JB |
480 | |
481 | /** 0111 1110 0111 srcx BNOR src */ | |
482 | ||
ed25d732 | 483 | BIT_OPC (srcx, (!b) | carry); |
d45a4bef JB |
484 | |
485 | /** 0111 1110 1010 dest BNOT:G dest */ | |
486 | ||
487 | BIT_OP (dest, !b); | |
488 | ||
489 | /** 0101 0bit BNOT:S bit,base:11[SB] */ | |
490 | ||
491 | dc = decode_bit11 (bit); | |
492 | put_bit (dc, !get_bit (dc)); | |
493 | ||
494 | /** 0111 1110 0011 srcx BNTST src */ | |
495 | ||
496 | dc = decode_bit (srcx); | |
497 | b = get_bit (dc); | |
498 | set_zc (!b, !b); | |
499 | ||
500 | /** 0111 1110 1101 srcx BNXOR src */ | |
501 | ||
502 | BIT_OPC (srcx, !b ^ carry); | |
503 | ||
504 | /** 0111 1110 0110 srcx BOR src */ | |
505 | ||
506 | BIT_OPC (srcx, b | carry); | |
507 | ||
508 | /** 0000 0000 BRK */ | |
509 | ||
510 | /* We report the break to our caller with the PC still pointing at the | |
511 | breakpoint instruction. */ | |
512 | put_reg (pc, orig_pc); | |
513 | if (verbose) | |
514 | printf("[break]\n"); | |
515 | return M32C_MAKE_HIT_BREAK (); | |
516 | ||
517 | /** 0111 1110 1001 dest BSET:G dest */ | |
518 | ||
519 | dc = decode_bit (dest); | |
520 | put_bit (dc, 1); | |
521 | ||
522 | /** 0100 1bit BSET:S bit,base:11[SB] */ | |
523 | ||
524 | dc = decode_bit11 (bit); | |
525 | put_bit (dc, 1); | |
526 | ||
527 | /** 0111 1110 1011 srcx BTST:G src */ | |
528 | ||
529 | dc = decode_bit (srcx); | |
530 | b = get_bit (dc); | |
531 | set_zc (!b, b); | |
532 | ||
533 | /** 0101 1bit BTST:S bit,base:11[SB] */ | |
534 | ||
535 | dc = decode_bit11 (bit); | |
536 | b = get_bit (dc); | |
537 | set_zc (!b, b); | |
538 | ||
539 | /** 0111 1110 0000 dest BTSTC dest */ | |
540 | ||
541 | dc = decode_bit (dest); | |
542 | b = get_bit (dc); | |
543 | set_zc (!b, b); | |
544 | put_bit (dc, 0); | |
545 | ||
546 | /** 0111 1110 0001 dest BTSTS dest */ | |
547 | ||
548 | dc = decode_bit (dest); | |
549 | b = get_bit (dc); | |
550 | set_zc (!b, b); | |
551 | put_bit (dc, 1); | |
552 | ||
553 | /** 0111 1110 1100 srcx BXOR src */ | |
554 | ||
555 | BIT_OPC (srcx, b ^ carry); | |
556 | ||
557 | /** 0111 011w 1000 dest CMP.size:G #IMM,dest */ | |
558 | ||
559 | UNARY_UOP; | |
560 | imm = IMM(w); | |
561 | cmp (v, imm, w); | |
562 | ||
563 | /** 1101 000w immm dest CMP.size:Q #IMM,dest */ | |
564 | ||
565 | UNARY_UOP; | |
566 | immm = sign_ext (immm, 4); | |
567 | cmp (v, immm, w); | |
568 | ||
569 | /** 1110 0dst CMP.B:S #IMM8,dest */ | |
570 | ||
571 | imm = IMM(0); | |
572 | dc = decode_dest3 (dst, 0); | |
573 | v = get_src (dc); | |
574 | cmp (v, imm, 0); | |
575 | ||
576 | /** 1100 000w srcx dest CMP.size:G src,dest */ | |
577 | ||
578 | BINARY_UOP; | |
579 | cmp(b, a, w); | |
580 | ||
581 | /** 0011 1d sr CMP.B:S src,R0L/R0H */ | |
582 | ||
583 | sc = decode_src2 (sr, 0, d); | |
584 | dc = decode_dest1 (d, 0); | |
585 | a = get_src (sc); | |
586 | b = get_src (dc); | |
587 | cmp (b, a, 0); | |
588 | ||
589 | /** 0111 110w 1110 i1c s DADC,DADD,DSBB,DSUB */ | |
590 | ||
591 | /* w = width, i = immediate, c = carry, s = subtract */ | |
592 | ||
0ae995e2 | 593 | { |
d45a4bef JB |
594 | int src = i ? IMM(w) : get_reg (w ? r1 : r0h); |
595 | int dest = get_reg (w ? r0 : r0l); | |
596 | int res; | |
597 | ||
598 | src = bcd2int(src, w); | |
599 | dest = bcd2int(dest, w); | |
600 | ||
601 | tprintf("decimal: %d %s %d", dest, s?"-":"+", src); | |
602 | if (c) | |
603 | tprintf(" c=%d", carry); | |
604 | ||
605 | if (!s) | |
606 | { | |
607 | res = dest + src; | |
608 | if (c) | |
609 | res += carry; | |
610 | c = res > (w ? 9999 : 99); | |
611 | } | |
612 | else | |
613 | { | |
614 | res = dest - src; | |
615 | if (c) | |
616 | res -= (1-carry); | |
617 | c = res >= 0; | |
618 | if (res < 0) | |
619 | res += w ? 10000 : 100; | |
620 | } | |
621 | ||
622 | res = int2bcd (res, w); | |
623 | tprintf(" = %x\n", res); | |
624 | ||
625 | set_szc (res, w+1, c); | |
626 | ||
627 | put_reg (w ? r0 : r0l, res); | |
0ae995e2 | 628 | } |
d45a4bef JB |
629 | |
630 | /** 1010 1dst DEC.B dest */ | |
631 | ||
632 | dc = decode_dest3 (dst, 0); | |
633 | v = get_src (dc); | |
634 | tprintf("%x -- = %x\n", v, v-1); | |
635 | v --; | |
636 | set_sz (v, 1); | |
637 | put_dest (dc, v); | |
638 | ||
639 | /** 1111 d010 DEC.W dest */ | |
640 | ||
641 | v = get_reg (d ? a1 : a0); | |
642 | tprintf("%x -- = %x\n", v, v-1); | |
643 | v --; | |
644 | set_sz (v, 2); | |
645 | put_reg (d ? a1 : a0, v); | |
646 | ||
647 | /** 0111 110w 1110 0001 DIV.size #IMM */ | |
648 | ||
649 | div_op (-1, 0, 0, w); | |
650 | ||
651 | /** 0111 011w 1101 srcx DIV.size src */ | |
652 | ||
653 | div_op (srcx, 0, 0, w); | |
654 | ||
655 | /** 0111 110w 1110 0000 DIVU.size #IMM */ | |
656 | ||
657 | div_op (-1, 1, 0, w); | |
658 | ||
659 | /** 0111 011w 1100 srcx DIVU.size src */ | |
660 | ||
661 | div_op (srcx, 1, 0, w); | |
662 | ||
663 | /** 0111 110w 1110 0011 DIVX.size #IMM */ | |
664 | ||
665 | div_op (-1, 0, 1, w); | |
666 | ||
667 | /** 0111 011w 1001 srcx DIVX.size src */ | |
668 | ||
669 | div_op (srcx, 0, 1, w); | |
670 | ||
671 | /** 0111 1100 1111 0010 ENTER #IMM8 */ | |
672 | ||
673 | imm = IMM(0); | |
674 | put_reg (sp, get_reg (sp) - 2); | |
675 | mem_put_hi (get_reg (sp), get_reg (fb)); | |
676 | put_reg (fb, get_reg (sp)); | |
677 | put_reg (sp, get_reg (sp) - imm); | |
678 | ||
679 | /** 0111 1101 1111 0010 EXITD */ | |
680 | ||
681 | put_reg (sp, get_reg (fb)); | |
682 | put_reg (fb, mem_get_hi (get_reg (sp))); | |
683 | put_reg (sp, get_reg (sp) + 2); | |
684 | put_reg (pc, mem_get_psi (get_reg (sp))); | |
685 | put_reg (sp, get_reg (sp) + 3); | |
686 | ||
687 | /** 0111 1100 0110 dest EXTS.B dest */ | |
688 | ||
689 | dc = decode_srcdest4 (dest, 0); | |
690 | v = sign_ext (get_src (dc), 8); | |
691 | dc = widen_sd (dc); | |
692 | put_dest (dc, v); | |
693 | set_sz (v, 1); | |
694 | ||
695 | /** 0111 1100 1111 0011 EXTS.W R0 */ | |
696 | ||
697 | v = sign_ext (get_reg (r0), 16); | |
698 | put_reg (r2r0, v); | |
699 | set_sz (v, 2); | |
700 | ||
701 | /** 1110 1011 0flg 0101 FCLR dest */ | |
702 | ||
703 | set_flags (1 << flg, 0); | |
704 | ||
705 | /** 1110 1011 0flg 0100 FSET dest */ | |
706 | ||
707 | set_flags (1 << flg, 1 << flg); | |
708 | ||
709 | /** 1010 0dst INC.B dest */ | |
710 | ||
711 | dc = decode_dest3 (dst, 0); | |
712 | v = get_src (dc); | |
713 | tprintf("%x ++ = %x\n", v, v+1); | |
714 | v ++; | |
715 | set_sz (v, 1); | |
716 | put_dest (dc, v); | |
717 | ||
718 | /** 1011 d010 INC.W dest */ | |
719 | ||
720 | v = get_reg (d ? a1 : a0); | |
721 | tprintf("%x ++ = %x\n", v, v+1); | |
722 | v ++; | |
723 | set_sz (v, 2); | |
724 | put_reg (d ? a1 : a0, v); | |
725 | ||
726 | /** 1110 1011 11vector INT #imm */ | |
727 | ||
728 | trigger_based_interrupt (vector); | |
729 | ||
730 | /** 1111 0110 INTO */ | |
731 | ||
732 | if (FLAG_O) | |
733 | trigger_fixed_interrupt (0xffe0); | |
734 | ||
735 | /** 0110 1cnd Jcnd label */ | |
736 | ||
737 | v = sign_ext (IMM(0), 8); | |
738 | if (condition_true (cnd)) | |
739 | put_reg (pc, orig_pc + 1 + v); | |
740 | ||
741 | /** 0111 1101 1100 cond Jcnd label */ | |
742 | ||
743 | v = sign_ext (IMM(0), 8); | |
744 | if (condition_true (cond)) | |
745 | put_reg (pc, orig_pc + 2 + v); | |
746 | ||
747 | /** 0110 0dsp JMP.S label */ | |
748 | ||
749 | put_reg (pc, orig_pc + 2 + dsp); | |
750 | ||
751 | /** 1111 1110 JMP.B label */ | |
752 | ||
753 | imm = sign_ext (IMM(0), 8); | |
754 | if (imm == -1) | |
755 | { | |
756 | if (verbose) | |
757 | printf("[jmp-to-self detected as exit]\n"); | |
758 | return M32C_MAKE_HIT_BREAK (); | |
759 | } | |
760 | put_reg (pc, orig_pc + 1 + imm); | |
761 | ||
762 | /** 1111 0100 JMP.W label */ | |
763 | ||
764 | imm = sign_ext (IMM(1), 16); | |
765 | put_reg (pc, orig_pc + 1 + imm); | |
766 | ||
767 | /** 1111 1100 JMP.A label */ | |
768 | ||
769 | imm = IMM(2); | |
770 | put_reg (pc, imm); | |
771 | ||
772 | /** 0111 1101 0010 srcx JMPI.W src */ | |
773 | ||
774 | sc = decode_jumpdest (srcx, 1); | |
775 | a = get_src (sc); | |
776 | a = sign_ext (a, 16); | |
777 | put_reg (pc, orig_pc + a); | |
778 | ||
779 | /** 0111 1101 0000 srcx JMPI.A src */ | |
780 | ||
781 | sc = decode_jumpdest (srcx, 0); | |
782 | a = get_src (sc); | |
783 | put_reg (pc, a); | |
784 | ||
785 | /** 1110 1110 JMPS #IMM8 */ | |
786 | ||
787 | M16C_ONLY(); | |
788 | ||
789 | imm = IMM(0); | |
790 | a = 0xf0000 + mem_get_hi (0xffffe - imm * 2); | |
791 | put_reg (pc, a); | |
792 | ||
793 | /** 1111 0101 JSR.W label */ | |
794 | ||
795 | imm = sign_ext (IMM(1), 16); | |
796 | put_reg (sp, get_reg (sp) - 3); | |
797 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
798 | put_reg (pc, orig_pc + imm + 1); | |
799 | ||
800 | /** 1111 1101 JSR.A label */ | |
801 | ||
802 | imm = IMM(2); | |
803 | put_reg (sp, get_reg (sp) - 3); | |
804 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
805 | put_reg (pc, imm); | |
806 | ||
807 | /** 0111 1101 0011 srcx JSRI.W src */ | |
808 | ||
809 | sc = decode_jumpdest (srcx, 1); | |
810 | a = get_src (sc); | |
811 | a = sign_ext (a, 16); | |
812 | ||
813 | put_reg (sp, get_reg (sp) - 3); | |
814 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
815 | put_reg (pc, orig_pc + a); | |
816 | ||
817 | /** 0111 1101 0001 srcx JSRI.A src */ | |
818 | ||
819 | sc = decode_jumpdest (srcx, 0); | |
820 | a = get_src (sc); | |
821 | ||
822 | put_reg (sp, get_reg (sp) - 3); | |
823 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
824 | put_reg (pc, a); | |
825 | ||
826 | /** 1110 1111 JSRS #IMM8 */ | |
827 | ||
828 | M16C_ONLY(); | |
829 | ||
830 | imm = IMM(0); | |
831 | a = 0xf0000 + mem_get_hi (0xffffe - imm * 2); | |
832 | ||
833 | put_reg (sp, get_reg (sp) - 3); | |
834 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
835 | put_reg (pc, a); | |
836 | ||
837 | /** 1110 1011 0reg 0000 LDC #IMM16,dest */ | |
838 | ||
839 | dc = decode_cr (reg); | |
840 | imm = IMM(1); | |
841 | put_dest (dc, imm); | |
842 | ||
843 | /** 0111 1010 1reg srcx LDC src,dest */ | |
844 | ||
845 | dc = decode_cr (reg); | |
846 | sc = decode_srcdest4 (srcx,1); | |
847 | put_dest (dc, get_src (sc)); | |
848 | ||
849 | /** 0111 1100 1111 0000 LDCTX abs16,abs20 */ | |
850 | ||
851 | NOTYET(); | |
852 | ||
853 | /** 0111 010w 1000 dest LDE.size abs20,dest */ | |
854 | ||
855 | dc = decode_srcdest4 (dest, w); | |
856 | imm = IMM(2); | |
857 | if (w) | |
858 | v = mem_get_hi (imm); | |
859 | else | |
860 | v = mem_get_qi (imm); | |
861 | put_dest (dc, v); | |
862 | ||
863 | /** 0111 010w 1001 dest LDE.size dsp:20[a0], dest */ | |
864 | ||
865 | dc = decode_srcdest4 (dest, w); | |
866 | imm = IMM(2) + get_reg (a0); | |
867 | if (w) | |
868 | v = mem_get_hi (imm); | |
869 | else | |
870 | v = mem_get_qi (imm); | |
871 | put_dest (dc, v); | |
872 | ||
873 | /** 0111 010w 1010 dest LDE.size [a1a0],dest */ | |
874 | ||
875 | dc = decode_srcdest4 (dest, w); | |
876 | imm = get_reg (a1a0); | |
877 | if (w) | |
878 | v = mem_get_hi (imm); | |
879 | else | |
880 | v = mem_get_qi (imm); | |
881 | put_dest (dc, v); | |
882 | ||
883 | /** 0111 1101 1010 0imm LDIPL #IMM */ | |
884 | ||
885 | set_flags (0x700, imm*0x100); | |
886 | ||
887 | /** 0111 010w 1100 dest MOV.size:G #IMM,dest */ | |
888 | ||
f4f21c20 | 889 | dc = decode_srcdest4 (dest, w); |
d45a4bef JB |
890 | imm = IMM(w); |
891 | v = imm; | |
892 | tprintf("%x = %x\n", v, v); | |
893 | set_sz(v, w+1); | |
894 | put_dest (dc, v); | |
895 | ||
896 | /** 1101 100w immm dest MOV.size:Q #IMM,dest */ | |
897 | ||
f4f21c20 | 898 | dc = decode_srcdest4 (dest, w); |
d45a4bef JB |
899 | v = sign_ext (immm, 4); |
900 | tprintf ("%x = %x\n", v, v); | |
901 | set_sz (v, w+1); | |
902 | put_dest (dc, v); | |
903 | ||
904 | /** 1100 0dst MOV.B:S #IMM8,dest */ | |
905 | ||
906 | imm = IMM(0); | |
907 | dc = decode_dest3 (dst, 0); | |
908 | v = imm; | |
909 | tprintf("%x = %x\n", v, v); | |
910 | set_sz (v, 1); | |
911 | put_dest (dc, v); | |
912 | ||
913 | /** 1w10 d010 MOV.size:S #IMM,dest */ | |
914 | ||
915 | /* Note that for w, 0=W and 1=B unlike the usual meaning. */ | |
916 | v = IMM(1-w); | |
917 | tprintf("%x = %x\n", v, v); | |
918 | set_sz (v, 2-w); | |
919 | put_reg (d ? a1 : a0, v); | |
920 | ||
921 | /** 1011 0dst MOV.B:Z #0,dest */ | |
922 | ||
923 | dc = decode_dest3 (dst, 0); | |
924 | v = 0; | |
925 | set_sz (v, 1); | |
926 | put_dest (dc, v); | |
927 | ||
928 | /** 0111 001w srcx dest MOV.size:G src,dest */ | |
929 | ||
930 | sc = decode_srcdest4 (srcx, w); | |
931 | dc = decode_srcdest4 (dest, w); | |
932 | v = get_src (sc); | |
933 | set_sz (v, w+1); | |
934 | put_dest (dc, v); | |
935 | ||
936 | /** 0011 0d sr MOV.B:S src,dest */ | |
937 | ||
938 | sc = decode_src2 (sr, 0, d); | |
939 | v = get_src (sc); | |
940 | set_sz (v, 1); | |
941 | put_reg (d ? a1 : a0, v); | |
942 | ||
943 | /** 0000 0s ds MOV.B:S R0L/R0H,dest */ | |
944 | ||
945 | if (ds == 0) | |
946 | UNSUPPORTED(); | |
947 | dc = decode_src2 (ds, 0, s); | |
948 | v = get_reg (s ? r0h : r0l); | |
949 | set_sz (v, 1); | |
950 | put_dest (dc, v); | |
951 | ||
952 | /** 0000 1d sr MOV.B:S src,R0L/R0H */ | |
953 | ||
954 | sc = decode_src2 (sr, 0, d); | |
955 | v = get_src (sc); | |
956 | set_sz (v, 1); | |
957 | put_reg (d ? r0h : r0l, v); | |
958 | ||
959 | /** 0111 010w 1011 dest MOV.size:G dsp:8[SP], dest */ | |
960 | ||
961 | dc = decode_srcdest4 (dest, w); | |
962 | imm = IMM(0); | |
963 | a = get_reg (sp) + sign_ext (imm, 8); | |
964 | a &= addr_mask; | |
965 | if (w) | |
966 | v = mem_get_hi (a); | |
967 | else | |
968 | v = mem_get_qi (a); | |
969 | set_sz (v, w+1); | |
970 | put_dest (dc, v); | |
971 | ||
972 | /** 0111 010w 0011 srcx MOV.size:G src, disp8[SP] */ | |
973 | ||
974 | sc = decode_srcdest4 (srcx, w); | |
975 | imm = IMM(0); | |
976 | a = get_reg (sp) + sign_ext (imm, 8); | |
977 | a &= addr_mask; | |
978 | v = get_src (sc); | |
979 | if (w) | |
980 | mem_put_hi (a, v); | |
981 | else | |
982 | mem_put_qi (a, v); | |
983 | set_sz (v, w+1); | |
984 | ||
985 | /** 1110 1011 0reg 1src MOVA src,dest */ | |
986 | ||
0ae995e2 | 987 | { |
d45a4bef JB |
988 | static reg_id map[] = { r0, r1, r2, r3, a0, a1, 0, 0 }; |
989 | sc = decode_srcdest4 (8 + src, 0); | |
990 | put_reg (map[reg], sc.u.addr); | |
0ae995e2 | 991 | } |
d45a4bef JB |
992 | |
993 | /** 0111 1100 10hl dest MOVdir R0L,dest */ | |
994 | ||
995 | if (dest == 0 || dest == 4 || dest == 5) | |
996 | UNSUPPORTED(); | |
997 | dc = decode_srcdest4 (dest, 0); | |
998 | a = get_src (dc); | |
999 | b = get_reg (r0l); | |
1000 | switch (hl) | |
1001 | { | |
1002 | case 0: a = (a & 0xf0) | (b & 0x0f); break; | |
1003 | case 1: a = (a & 0xf0) | ((b>>4) & 0x0f); break; | |
1004 | case 2: a = (a & 0x0f) | ((b & 0x0f)<<4); break; | |
1005 | case 3: a = (a & 0x0f) | (b & 0xf0); break; | |
1006 | } | |
1007 | put_dest (dc, a); | |
1008 | ||
1009 | /** 0111 1100 00hl srcx MOVdir src,R0L */ | |
1010 | ||
1011 | if (srcx == 0 || srcx == 4 || srcx == 5) | |
1012 | UNSUPPORTED(); | |
1013 | sc = decode_srcdest4 (srcx, 0); | |
1014 | a = get_reg (r0l); | |
1015 | b = get_src (sc); | |
1016 | switch (hl) | |
1017 | { | |
1018 | case 0: a = (a & 0xf0) | (b & 0x0f); break; | |
1019 | case 1: a = (a & 0xf0) | ((b>>4) & 0x0f); break; | |
1020 | case 2: a = (a & 0x0f) | ((b & 0x0f)<<4); break; | |
1021 | case 3: a = (a & 0x0f) | (b & 0xf0); break; | |
1022 | } | |
1023 | put_reg (r0l, a); | |
1024 | ||
1025 | /** 0111 110w 0101 dest MUL.size #IMM,dest */ | |
1026 | ||
1027 | UNARY_SOP; | |
1028 | imm = sign_ext (IMM(w), w?16:8); | |
1029 | tprintf("%d * %d = %d\n", v, imm, v*imm); | |
1030 | v *= imm; | |
1031 | dc = widen_sd (dc); | |
1032 | put_dest (dc, v); | |
1033 | ||
1034 | /** 0111 100w srcx dest MUL.size src,dest */ | |
1035 | ||
1036 | BINARY_SOP; | |
1037 | v = a * b; | |
1038 | tprintf("%d * %d = %d\n", a, b, v); | |
1039 | dc = widen_sd (dc); | |
1040 | put_dest (dc, v); | |
1041 | ||
1042 | /** 0111 110w 0100 dest MULU.size #IMM,dest */ | |
1043 | ||
1044 | UNARY_UOP; | |
1045 | imm = IMM(w); | |
1046 | tprintf("%u * %u = %u\n", v, imm, v*imm); | |
1047 | v *= imm; | |
1048 | dc = widen_sd (dc); | |
1049 | put_dest (dc, v); | |
1050 | ||
1051 | /** 0111 000w srcx dest MULU.size src,dest */ | |
1052 | ||
1053 | BINARY_UOP; | |
1054 | v = a * b; | |
1055 | tprintf("%u * %u = %u\n", a, b, v); | |
1056 | dc = widen_sd (dc); | |
1057 | put_dest (dc, v); | |
1058 | ||
1059 | /** 0111 010w 0101 dest NEG.size dest */ | |
1060 | ||
1061 | UNARY_SOP; | |
1062 | tprintf("%d * -1 = %d\n", v, -v); | |
1063 | v = -v; | |
1064 | set_oszc (v, w+1, v == 0); | |
1065 | put_dest (dc, v); | |
1066 | ||
1067 | /** 0000 0100 NOP */ | |
1068 | ||
1069 | tprintf("nop\n"); | |
1070 | ||
1071 | /** 0111 010w 0111 dest NOT.size:G */ | |
1072 | ||
1073 | UNARY_UOP; | |
1074 | tprintf("~ %x = %x\n", v, ~v); | |
1075 | v = ~v; | |
1076 | set_sz (v, w+1); | |
1077 | put_dest (dc, v); | |
1078 | ||
1079 | /** 1011 1dst NOT.B:S dest */ | |
1080 | ||
1081 | dc = decode_dest3 (dst, 0); | |
1082 | v = get_src (dc); | |
1083 | tprintf("~ %x = %x\n", v, ~v); | |
1084 | v = ~v; | |
1085 | set_sz (v, 1); | |
1086 | put_dest (dc, v); | |
1087 | ||
1088 | /** 0111 011w 0011 dest OR.size:G #IMM,dest */ | |
1089 | ||
1090 | UNARY_UOP; | |
1091 | imm = IMM(w); | |
1092 | tprintf ("%x | %x = %x\n", v, imm, v | imm); | |
1093 | v |= imm; | |
1094 | set_sz (v, w+1); | |
1095 | put_dest (dc, v); | |
1096 | ||
1097 | /** 1001 1dst OR.B:S #IMM8,dest */ | |
1098 | ||
1099 | imm = IMM(0); | |
1100 | dc = decode_dest3 (dst, 0); | |
1101 | v = get_src (dc); | |
1102 | tprintf("%x | %x = %x\n", v, imm, v|imm); | |
1103 | v |= imm; | |
1104 | set_sz (v, 1); | |
1105 | put_dest (dc, v); | |
1106 | ||
1107 | /** 1001 100w srcx dest OR.size:G src,dest */ | |
1108 | ||
1109 | BINARY_UOP; | |
1110 | tprintf ("%x | %x = %x\n", a, b, a | b); | |
1111 | v = a | b; | |
1112 | set_sz (v, w+1); | |
1113 | put_dest (dc, v); | |
1114 | ||
1115 | /** 0001 1d sr OR.B:S src,R0L/R0H */ | |
1116 | ||
1117 | sc = decode_src2 (sr, 0, d); | |
1118 | dc = decode_dest1 (d, 0); | |
1119 | a = get_src (sc); | |
1120 | b = get_src (dc); | |
1121 | v = a | b; | |
1122 | tprintf("%x | %x = %x\n", a, b, v); | |
1123 | set_sz (v, 1); | |
1124 | put_dest (dc, v); | |
1125 | ||
1126 | /** 0111 010w 1101 dest POP.size:G dest */ | |
1127 | ||
1128 | dc = decode_srcdest4 (dest, w); | |
1129 | if (w) | |
1130 | { | |
1131 | v = mem_get_hi (get_reg (sp)); | |
1132 | put_reg (sp, get_reg (sp) + 2); | |
1133 | tprintf("pophi: %x\n", v); | |
1134 | } | |
1135 | else | |
1136 | { | |
1137 | v = mem_get_qi (get_reg (sp)); | |
1138 | put_reg (sp, get_reg (sp) + 1); | |
1139 | tprintf("popqi: %x\n", v); | |
1140 | } | |
1141 | put_dest (dc, v); | |
1142 | ||
1143 | /** 1001 d010 POP.B:S dest */ | |
1144 | ||
1145 | v = mem_get_qi (get_reg (sp)); | |
1146 | put_reg (d ? r0h : r0l, v); | |
1147 | put_reg (sp, get_reg (sp) + 1); | |
1148 | tprintf("popqi: %x\n", v); | |
1149 | ||
1150 | /** 1101 d010 POP.W:S dest */ | |
1151 | ||
1152 | v = mem_get_hi (get_reg (sp)); | |
1153 | put_reg (d ? a1 : a0, v); | |
1154 | put_reg (sp, get_reg (sp) + 2); | |
1155 | tprintf("pophi: %x\n", v); | |
1156 | ||
1157 | /** 1110 1011 0reg 0011 POPC dest */ | |
1158 | ||
1159 | dc = decode_cr (reg); | |
1160 | v = mem_get_hi (get_reg (sp)); | |
1161 | put_dest (dc, v); | |
1162 | put_reg (sp, get_reg (sp) + 2); | |
1163 | tprintf("popc: %x\n", v); | |
1164 | ||
1165 | /** 1110 1101 POPM dest */ | |
1166 | ||
0ae995e2 | 1167 | { |
d45a4bef JB |
1168 | static int map[] = { r0, r1, r2, r3, a0, a1, sb, fb }; |
1169 | imm = IMM(0); | |
1170 | tprintf("popm: %x\n", imm); | |
1171 | for (a=0; a<8; a++) | |
1172 | if (imm & (1<<a)) | |
1173 | { | |
1174 | v = mem_get_hi (get_reg (sp)); | |
1175 | put_reg (map[a], v); | |
1176 | put_reg (sp, get_reg (sp) + 2); | |
1177 | } | |
0ae995e2 | 1178 | } |
d45a4bef JB |
1179 | |
1180 | /** 0111 110w 1110 0010 PUSH.size:G #IMM */ | |
1181 | ||
1182 | imm = IMM(w); | |
1183 | if (w) | |
1184 | { | |
1185 | put_reg (sp, get_reg (sp) - 2); | |
1186 | mem_put_hi (get_reg (sp), imm); | |
1187 | tprintf("pushhi %04x\n", imm); | |
1188 | } | |
1189 | else | |
1190 | { | |
1191 | put_reg (sp, get_reg (sp) - 1); | |
1192 | mem_put_qi (get_reg (sp), imm); | |
1193 | tprintf("pushqi %02x\n", imm); | |
1194 | } | |
1195 | ||
1196 | /** 0111 010w 0100 srcx PUSH.size:G src */ | |
1197 | ||
1198 | sc = decode_srcdest4 (srcx, w); | |
1199 | v = get_src (sc); | |
1200 | if (w) | |
1201 | { | |
1202 | put_reg (sp, get_reg (sp) - 2); | |
1203 | mem_put_hi (get_reg (sp), v); | |
1204 | tprintf("pushhi: %x\n", v); | |
1205 | } | |
1206 | else | |
1207 | { | |
1208 | put_reg (sp, get_reg (sp) - 1); | |
1209 | mem_put_qi (get_reg (sp), v); | |
1210 | tprintf("pushqi: %x\n", v); | |
1211 | } | |
1212 | ||
1213 | /** 1000 s010 PUSH.B:S src */ | |
1214 | ||
1215 | v = get_reg (s ? r0h : r0l); | |
1216 | put_reg (sp, get_reg (sp) - 1); | |
1217 | mem_put_qi (get_reg (sp), v); | |
1218 | tprintf("pushqi: %x\n", v); | |
1219 | ||
1220 | /** 1100 s010 PUSH.W:S src */ | |
1221 | ||
1222 | v = get_reg (s ? a1 : a0); | |
1223 | put_reg (sp, get_reg (sp) - 2); | |
1224 | mem_put_hi (get_reg (sp), v); | |
1225 | tprintf("pushhi: %x\n", v); | |
1226 | ||
1227 | /** 0111 1101 1001 srcx PUSHA src */ | |
1228 | ||
1229 | sc = decode_srcdest4 (srcx, 0); | |
1230 | put_reg (sp, get_reg (sp) - 2); | |
1231 | mem_put_hi (get_reg (sp), sc.u.addr); | |
1232 | tprintf("pushhi: %x\n", sc.u.addr); | |
1233 | ||
1234 | /** 1110 1011 0src 0010 PUSHC src */ | |
1235 | ||
1236 | sc = decode_cr (src); | |
1237 | put_reg (sp, get_reg (sp) - 2); | |
1238 | v = get_src (sc); | |
1239 | mem_put_hi (get_reg (sp), v); | |
1240 | tprintf("pushc: %x\n", v); | |
1241 | ||
1242 | /** 1110 1100 PUSHM src */ | |
1243 | ||
0ae995e2 | 1244 | { |
d45a4bef JB |
1245 | static int map[] = { fb, sb, a1, a0, r3, r2, r1, r0 }; |
1246 | imm = IMM(0); | |
1247 | tprintf("pushm: %x\n", imm); | |
1248 | for (a=0; a<8; a++) | |
1249 | if (imm & (1<<a)) | |
1250 | { | |
1251 | put_reg (sp, get_reg (sp) - 2); | |
1252 | v = get_reg (map[a]); | |
1253 | mem_put_hi (get_reg (sp), v); | |
1254 | } | |
0ae995e2 | 1255 | } |
d45a4bef JB |
1256 | |
1257 | /** 1111 1011 REIT */ | |
1258 | ||
1259 | a = get_reg (sp); | |
1260 | v = (mem_get_hi (a) | |
3877a145 | 1261 | + 4096 * (mem_get_qi (a+3) & 0xf0)); |
d45a4bef | 1262 | b = (mem_get_qi (a+2) |
3877a145 | 1263 | + 256 * (mem_get_qi (a+3) & 0xff)); |
d45a4bef JB |
1264 | put_reg (pc, v); |
1265 | put_reg (flags, b); | |
1266 | put_reg (sp, get_reg (sp) + 4); | |
1267 | ||
1268 | /** 0111 110w 1111 0001 RMPA.size */ | |
1269 | ||
0ae995e2 | 1270 | { |
d45a4bef JB |
1271 | int count = get_reg (r3); |
1272 | int list1 = get_reg (a0); | |
1273 | int list2 = get_reg (a1); | |
1274 | int sum = get_reg (w ? r2r0 : r0); | |
1275 | ||
1276 | while (count) | |
1277 | { | |
1278 | if (w) | |
1279 | { | |
1280 | a = sign_ext (mem_get_hi (list1), 16); | |
1281 | b = sign_ext (mem_get_hi (list2), 16); | |
1282 | } | |
1283 | else | |
1284 | { | |
1285 | a = sign_ext (mem_get_qi (list1), 8); | |
1286 | b = sign_ext (mem_get_qi (list2), 8); | |
1287 | } | |
1288 | tprintf("%d + %d * %d = ", sum, a, b); | |
1289 | sum += a * b; | |
1290 | tprintf("%d\n", sum); | |
1291 | list1 += w ? 2 : 1; | |
1292 | list2 += w ? 2 : 1; | |
1293 | count --; | |
1294 | } | |
1295 | put_reg (r3, count); | |
1296 | put_reg (a0, list1); | |
1297 | put_reg (a1, list2); | |
1298 | put_reg (w ? r2r0 : r0, sum); | |
0ae995e2 | 1299 | } |
d45a4bef JB |
1300 | |
1301 | /** 0111 011w 1010 dest ROLC.size dest */ | |
1302 | ||
1303 | dc = decode_srcdest4 (dest, w); | |
1304 | rot_op (dc, 1, 1); | |
1305 | ||
1306 | /** 0111 011w 1011 dest RORC.size dest */ | |
1307 | ||
1308 | dc = decode_srcdest4 (dest, w); | |
1309 | rot_op (dc, 1, -1); | |
1310 | ||
1311 | /** 1110 000w immm dest ROT.size #IMM,dest */ | |
1312 | ||
1313 | dc = decode_srcdest4 (dest, w); | |
1314 | rot_op (dc, 0, IMM4()); | |
1315 | ||
1316 | /** 0111 010w 0110 dest ROT.size R1H,dest */ | |
1317 | ||
1318 | dc = decode_srcdest4 (dest, w); | |
1319 | rot_op (dc, 0, sign_ext (get_reg (r1h), 8)); | |
1320 | ||
1321 | /** 1111 0011 RTS */ | |
1322 | ||
1323 | put_reg (pc, mem_get_psi (get_reg (sp))); | |
1324 | put_reg (sp, get_reg (sp) + 3); | |
1325 | ||
1326 | /** 0111 011w 0111 dest SBB.size #IMM,dest */ | |
1327 | ||
1328 | dc = decode_srcdest4 (dest, w); | |
1329 | imm = IMM(w); | |
1330 | MATH_OP (dc, imm, !carry, -, >= 0); | |
1331 | ||
1332 | /** 1011 100w srcx dest SBB.size src,dest */ | |
1333 | ||
1334 | sc = decode_srcdest4(srcx, w); | |
1335 | dc = decode_srcdest4(dest, w); | |
1336 | b = get_src (sc); | |
1337 | MATH_OP (dc, b, !carry, -, >= 0); | |
1338 | ||
1339 | /** 1111 000w immm dest SHA.size #IMM, dest */ | |
1340 | ||
1341 | dc = decode_srcdest4(dest, w); | |
1342 | shift_op (dc, 1, IMM4()); | |
1343 | ||
1344 | /** 0111 010w 1111 dest SHA.size R1H,dest */ | |
1345 | ||
1346 | dc = decode_srcdest4(dest, w); | |
1347 | a = sign_ext (get_reg (r1h), 8); | |
1348 | shift_op (dc, 1, a); | |
1349 | ||
1350 | /** 1110 1011 101d immm SHA.L #IMM, dest */ | |
1351 | ||
1352 | dc = reg_sd (d ? r3r1 : r2r0); | |
1353 | shift_op (dc, 1, IMM4()); | |
1354 | ||
1355 | /** 1110 1011 001d 0001 SHA.L R1H,dest */ | |
1356 | ||
1357 | dc = reg_sd (d ? r3r1 : r2r0); | |
1358 | a = sign_ext (get_reg (r1h), 8); | |
1359 | shift_op (dc, 1, a); | |
1360 | ||
1361 | /** 1110 100w immm dest SHL.size #IMM, dest */ | |
1362 | ||
1363 | dc = decode_srcdest4(dest, w); | |
1364 | shift_op (dc, 0, IMM4()); | |
1365 | ||
1366 | /** 0111 010w 1110 dest SHL.size R1H,dest */ | |
1367 | ||
1368 | dc = decode_srcdest4(dest, w); | |
1369 | a = sign_ext (get_reg (r1h), 8); | |
1370 | shift_op (dc, 0, a); | |
1371 | ||
1372 | /** 1110 1011 100d immm SHL.L #IMM,dest */ | |
1373 | ||
1374 | dc = reg_sd (d ? r3r1 : r2r0); | |
1375 | shift_op (dc, 0, IMM4()); | |
1376 | ||
1377 | /** 1110 1011 000d 0001 SHL.L R1H,dest */ | |
1378 | ||
1379 | dc = reg_sd (d ? r3r1 : r2r0); | |
1380 | a = sign_ext (get_reg (r1h), 8); | |
1381 | shift_op (dc, 0, a); | |
1382 | ||
1383 | /** 0111 110w 1110 100b SMOVB.size */ | |
1384 | ||
0ae995e2 | 1385 | { |
d45a4bef JB |
1386 | int count = get_reg (r3); |
1387 | int s1 = get_reg (a0) + (get_reg (r1h) << 16); | |
1388 | int s2 = get_reg (a1); | |
1389 | int inc = (w ? 2 : 1) * (b ? -1 : 1); | |
1390 | ||
1391 | while (count) | |
1392 | { | |
1393 | if (w) | |
1394 | { | |
1395 | v = mem_get_hi (s1); | |
1396 | mem_put_hi (s2, v); | |
1397 | } | |
1398 | else | |
1399 | { | |
1400 | v = mem_get_qi (s1); | |
1401 | mem_put_qi (s2, v); | |
1402 | } | |
1403 | s1 += inc; | |
1404 | s2 += inc; | |
1405 | count --; | |
1406 | } | |
1407 | put_reg (r3, count); | |
1408 | put_reg (a0, s1 & 0xffff); | |
1409 | put_reg (a1, s2); | |
1410 | put_reg (r1h, s1 >> 16); | |
0ae995e2 | 1411 | } |
d45a4bef JB |
1412 | |
1413 | /** 0111 110w 1110 1010 SSTR.size */ | |
1414 | ||
0ae995e2 | 1415 | { |
d45a4bef JB |
1416 | int count = get_reg (r3); |
1417 | int s1 = get_reg (a1); | |
3877a145 | 1418 | v = get_reg (w ? r0 : r0l); |
d45a4bef JB |
1419 | |
1420 | while (count) | |
1421 | { | |
1422 | if (w) | |
1423 | { | |
1424 | mem_put_hi (s1, v); | |
1425 | s1 += 2; | |
1426 | } | |
1427 | else | |
1428 | { | |
1429 | mem_put_qi (s1, v); | |
1430 | s1 += 1; | |
1431 | } | |
1432 | count --; | |
1433 | } | |
1434 | put_reg (r3, count); | |
1435 | put_reg (a1, s1); | |
0ae995e2 | 1436 | } |
d45a4bef JB |
1437 | |
1438 | /** 0111 1011 1src dest STC src,dest */ | |
1439 | ||
1440 | dc = decode_srcdest4 (dest, 1); | |
1441 | sc = decode_cr (src); | |
1442 | put_dest (dc, get_src(sc)); | |
1443 | ||
1444 | /** 0111 1100 1100 dest STC PC,dest */ | |
1445 | ||
1446 | dc = decode_srcdest4 (dest, 1); | |
1447 | dc.bytes = 3; | |
1448 | put_dest (dc, orig_pc); | |
1449 | ||
1450 | /** 0111 1101 1111 0000 STCTX abs16,abs20 */ | |
1451 | ||
1452 | NOTYET(); | |
1453 | ||
1454 | /** 0111 010w 0000 srcx STE.size src,abs20 */ | |
1455 | ||
1456 | sc = decode_srcdest4 (srcx, w); | |
1457 | a = IMM(2); | |
1458 | v = get_src (sc); | |
1459 | if (w) | |
1460 | mem_put_hi (a, v); | |
1461 | else | |
1462 | mem_put_qi (a, v); | |
1463 | if (srcx == 4 || srcx == 5) | |
1464 | { | |
1465 | v = get_reg (sc.u.reg); | |
1466 | set_sz (v, 2); | |
1467 | } | |
1468 | else | |
1469 | set_sz (v, w+1); | |
1470 | ||
1471 | /** 0111 010w 0001 srcx STE.size src,disp20[a0] */ | |
1472 | ||
1473 | sc = decode_srcdest4 (srcx, w); | |
1474 | a = get_reg(a0) + IMM(2); | |
1475 | v = get_src (sc); | |
1476 | if (w) | |
1477 | mem_put_hi (a, v); | |
1478 | else | |
1479 | mem_put_qi (a, v); | |
1480 | if (srcx == 4 || srcx == 5) | |
1481 | { | |
1482 | v = get_reg (sc.u.reg); | |
1483 | set_sz (v, 2); | |
1484 | } | |
1485 | else | |
1486 | set_sz (v, w+1); | |
1487 | ||
1488 | /** 0111 010w 0010 srcx STE.size src,[a1a0] */ | |
1489 | ||
1490 | sc = decode_srcdest4 (srcx, w); | |
1491 | a = get_reg(a1a0); | |
1492 | v = get_src (sc); | |
1493 | if (w) | |
1494 | mem_put_hi (a, v); | |
1495 | else | |
1496 | mem_put_qi (a, v); | |
1497 | if (srcx == 4 || srcx == 5) | |
1498 | { | |
1499 | v = get_reg (sc.u.reg); | |
1500 | set_sz (v, 2); | |
1501 | } | |
1502 | else | |
1503 | set_sz (v, w+1); | |
1504 | ||
1505 | /** 1101 0dst STNZ #IMM8,dest */ | |
1506 | ||
1507 | imm = IMM(0); | |
1508 | dc = decode_dest3(dst, 0); | |
1509 | if (!FLAG_Z) | |
1510 | put_dest (dc, imm); | |
1511 | ||
1512 | /** 1100 1dst STZ #IMM8,dest */ | |
1513 | ||
1514 | imm = IMM(0); | |
1515 | dc = decode_dest3(dst, 0); | |
1516 | if (FLAG_Z) | |
1517 | put_dest (dc, imm); | |
1518 | ||
1519 | /** 1101 1dst STZX #IMM81,#IMM82,dest */ | |
1520 | ||
1521 | a = IMM(0); | |
1522 | dc = decode_dest3(dst, 0); | |
1523 | b = IMM(0); | |
1524 | if (FLAG_Z) | |
1525 | put_dest (dc, a); | |
1526 | else | |
1527 | put_dest (dc, b); | |
1528 | ||
1529 | /** 0111 011w 0101 dest SUB.size:G #IMM,dest */ | |
1530 | ||
1531 | dc = decode_srcdest4 (dest, w); | |
1532 | imm = IMM(w); | |
1533 | MATH_OP (dc, imm, 0, -, >= 0); | |
1534 | ||
1535 | /** 1000 1dst SUB.B:S #IMM8,dest */ | |
1536 | ||
1537 | imm = IMM(0); | |
1538 | dc = decode_dest3 (dst, 0); | |
1539 | MATH_OP (dc, imm, 0, -, >= 0); | |
1540 | ||
1541 | /** 1010 100w srcx dest SUB.size:G src,dest */ | |
1542 | ||
1543 | sc = decode_srcdest4(srcx, w); | |
1544 | dc = decode_srcdest4(dest, w); | |
1545 | b = get_src (sc); | |
f4f21c20 | 1546 | MATH_OP (dc, b, 0, -, >= 0); |
d45a4bef JB |
1547 | |
1548 | /** 0010 1d sr SUB.B:S src,R0L/R0H */ | |
1549 | ||
1550 | sc = decode_src2 (sr, 0, d); | |
1551 | dc = decode_dest1 (d, 0); | |
1552 | b = get_src (sc); | |
f4f21c20 | 1553 | MATH_OP (dc, b, 0, -, >= 0); |
d45a4bef JB |
1554 | |
1555 | /** 0111 011w 0000 dest TST.size #IMM, dest */ | |
1556 | ||
1557 | UNARY_UOP; | |
1558 | imm = IMM(w); | |
1559 | tprintf ("%x & %x = %x\n", v, imm, v & imm); | |
1560 | v &= imm; | |
1561 | set_sz (v, w+1); | |
1562 | ||
1563 | /** 1000 000w srcx dest TST.size src,dest */ | |
1564 | ||
1565 | BINARY_UOP; | |
1566 | tprintf ("%x & %x = %x\n", a, b, a & b); | |
1567 | v = a & b; | |
1568 | set_sz (v, w+1); | |
1569 | ||
1570 | /** 1111 1111 UND */ | |
1571 | ||
1572 | trigger_fixed_interrupt (0xffdc); | |
1573 | ||
1574 | /** 0111 1101 1111 0011 WAIT */ | |
1575 | ||
1576 | tprintf("waiting...\n"); | |
1577 | ||
1578 | /** 0111 101w 00sr dest XCHG.size src,dest */ | |
1579 | ||
1580 | sc = decode_srcdest4 (sr, w); | |
1581 | dc = decode_srcdest4 (dest, w); | |
1582 | a = get_src (sc); | |
1583 | b = get_src (dc); | |
1584 | put_dest (dc, a); | |
1585 | put_dest (sc, b); | |
1586 | ||
1587 | /** 0111 011w 0001 dest XOR.size #IMM,dest */ | |
1588 | ||
1589 | UNARY_UOP; | |
1590 | imm = IMM(w); | |
1591 | tprintf ("%x ^ %x = %x\n", v, imm, v ^ imm); | |
1592 | v ^= imm; | |
1593 | set_sz (v, w+1); | |
1594 | put_dest (dc, v); | |
1595 | ||
1596 | /** 1000 100w srcx dest XOR.size src,dest */ | |
1597 | ||
1598 | BINARY_UOP; | |
1599 | tprintf ("%x ^ %x = %x\n", a, b, a ^ b); | |
1600 | v = a ^ b; | |
1601 | set_sz (v, w+1); | |
1602 | put_dest (dc, v); | |
1603 | ||
1604 | /** OP */ | |
1605 | /** */ | |
1606 | ||
1607 | return step_result; | |
1608 | } |