Commit | Line | Data |
---|---|---|
c906108c | 1 | /* |
9f70f8ec | 2 | * Simulator for the Renesas (formerly Hitachi) H8/300 architecture. |
c906108c SS |
3 | * |
4 | * Written by Steve Chamberlain of Cygnus Support. sac@cygnus.com | |
5 | * | |
6 | * This file is part of H8/300 sim | |
7 | * | |
8 | * | |
9 | * THIS SOFTWARE IS NOT COPYRIGHTED | |
10 | * | |
11 | * Cygnus offers the following for use in the public domain. Cygnus makes no | |
12 | * warranty with regard to the software or its performance and the user | |
13 | * accepts the software "AS IS" with all faults. | |
14 | * | |
15 | * CYGNUS DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO THIS | |
16 | * SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY | |
17 | * AND FITNESS FOR A PARTICULAR PURPOSE. | |
18 | */ | |
19 | ||
a6ff997c | 20 | #include "config.h" |
c906108c SS |
21 | #include <signal.h> |
22 | #ifdef HAVE_TIME_H | |
23 | #include <time.h> | |
24 | #endif | |
25 | #ifdef HAVE_STDLIB_H | |
26 | #include <stdlib.h> | |
27 | #endif | |
28 | #ifdef HAVE_SYS_PARAM_H | |
29 | #include <sys/param.h> | |
30 | #endif | |
dc5c3759 | 31 | |
c906108c | 32 | #include "bfd.h" |
dc5c3759 | 33 | #include "sim-main.h" |
a64bfde3 | 34 | #include "gdb/sim-h8300.h" |
bf174226 V |
35 | #include "sys/stat.h" |
36 | #include "sys/types.h" | |
c906108c SS |
37 | |
38 | #ifndef SIGTRAP | |
39 | # define SIGTRAP 5 | |
40 | #endif | |
41 | ||
42 | int debug; | |
43 | ||
44 | host_callback *sim_callback; | |
45 | ||
46 | static SIM_OPEN_KIND sim_kind; | |
47 | static char *myname; | |
48 | ||
49 | /* FIXME: Needs to live in header file. | |
50 | This header should also include the things in remote-sim.h. | |
51 | One could move this to remote-sim.h but this function isn't needed | |
52 | by gdb. */ | |
dc5c3759 | 53 | static void set_simcache_size (SIM_DESC, int); |
c906108c | 54 | |
dc5c3759 | 55 | #define X(op, size) (op * 4 + size) |
c906108c | 56 | |
59768597 | 57 | #define SP (h8300hmode && !h8300_normal_mode ? SL : SW) |
dc5c3759 | 58 | |
c906108c SS |
59 | #define h8_opcodes ops |
60 | #define DEFINE_TABLE | |
61 | #include "opcode/h8300.h" | |
62 | ||
dc5c3759 | 63 | /* CPU data object: */ |
c906108c | 64 | |
dc5c3759 MS |
65 | static int |
66 | sim_state_initialize (SIM_DESC sd, sim_cpu *cpu) | |
67 | { | |
68 | /* FIXME: not really necessary, since sim_cpu_alloc calls zalloc. */ | |
69 | ||
70 | memset (&cpu->regs, 0, sizeof(cpu->regs)); | |
71 | cpu->regs[SBR_REGNUM] = 0xFFFFFF00; | |
72 | cpu->pc = 0; | |
73 | cpu->delayed_branch = 0; | |
74 | cpu->memory = NULL; | |
75 | cpu->eightbit = NULL; | |
76 | cpu->mask = 0; | |
77 | ||
78 | /* Initialize local simulator state. */ | |
79 | sd->sim_cache = NULL; | |
80 | sd->sim_cache_size = 0; | |
81 | sd->cache_idx = NULL; | |
82 | sd->cache_top = 0; | |
83 | sd->memory_size = 0; | |
84 | sd->compiles = 0; | |
85 | #ifdef ADEBUG | |
86 | memset (&cpu->stats, 0, sizeof (cpu->stats)); | |
87 | #endif | |
88 | return 0; | |
89 | } | |
7a292a7a | 90 | |
dc5c3759 MS |
91 | static unsigned int |
92 | h8_get_pc (SIM_DESC sd) | |
93 | { | |
94 | return (STATE_CPU (sd, 0)) -> pc; | |
95 | } | |
7a292a7a | 96 | |
dc5c3759 MS |
97 | static void |
98 | h8_set_pc (SIM_DESC sd, unsigned int val) | |
99 | { | |
100 | (STATE_CPU (sd, 0)) -> pc = val; | |
101 | } | |
fc974602 | 102 | |
dc5c3759 MS |
103 | static unsigned int |
104 | h8_get_ccr (SIM_DESC sd) | |
105 | { | |
106 | return (STATE_CPU (sd, 0)) -> regs[CCR_REGNUM]; | |
107 | } | |
c906108c | 108 | |
dc5c3759 MS |
109 | static void |
110 | h8_set_ccr (SIM_DESC sd, unsigned int val) | |
111 | { | |
112 | (STATE_CPU (sd, 0)) -> regs[CCR_REGNUM] = val; | |
113 | } | |
c906108c | 114 | |
dc5c3759 MS |
115 | static unsigned int |
116 | h8_get_exr (SIM_DESC sd) | |
117 | { | |
118 | return (STATE_CPU (sd, 0)) -> regs[EXR_REGNUM]; | |
119 | } | |
c906108c | 120 | |
dc5c3759 MS |
121 | static void |
122 | h8_set_exr (SIM_DESC sd, unsigned int val) | |
123 | { | |
124 | (STATE_CPU (sd, 0)) -> regs[EXR_REGNUM] = val; | |
125 | } | |
c906108c | 126 | |
dc5c3759 MS |
127 | static int |
128 | h8_get_sbr (SIM_DESC sd) | |
129 | { | |
130 | return (STATE_CPU (sd, 0)) -> regs[SBR_REGNUM]; | |
131 | } | |
c906108c | 132 | |
dc5c3759 MS |
133 | static void |
134 | h8_set_sbr (SIM_DESC sd, int val) | |
135 | { | |
136 | (STATE_CPU (sd, 0)) -> regs[SBR_REGNUM] = val; | |
137 | } | |
c906108c | 138 | |
c906108c | 139 | static int |
dc5c3759 MS |
140 | h8_get_vbr (SIM_DESC sd) |
141 | { | |
142 | return (STATE_CPU (sd, 0)) -> regs[VBR_REGNUM]; | |
143 | } | |
144 | ||
145 | static void | |
146 | h8_set_vbr (SIM_DESC sd, int val) | |
c906108c | 147 | { |
dc5c3759 | 148 | (STATE_CPU (sd, 0)) -> regs[VBR_REGNUM] = val; |
c906108c SS |
149 | } |
150 | ||
151 | static int | |
dc5c3759 | 152 | h8_get_cache_top (SIM_DESC sd) |
c906108c | 153 | { |
dc5c3759 MS |
154 | return sd -> cache_top; |
155 | } | |
156 | ||
157 | static void | |
158 | h8_set_cache_top (SIM_DESC sd, int val) | |
159 | { | |
160 | sd -> cache_top = val; | |
c906108c SS |
161 | } |
162 | ||
c906108c | 163 | static int |
dc5c3759 | 164 | h8_get_mask (SIM_DESC sd) |
c906108c | 165 | { |
dc5c3759 | 166 | return (STATE_CPU (sd, 0)) -> mask; |
c906108c SS |
167 | } |
168 | ||
dc5c3759 MS |
169 | static void |
170 | h8_set_mask (SIM_DESC sd, int val) | |
c906108c | 171 | { |
dc5c3759 MS |
172 | (STATE_CPU (sd, 0)) -> mask = val; |
173 | } | |
174 | #if 0 | |
175 | static int | |
176 | h8_get_exception (SIM_DESC sd) | |
177 | { | |
178 | return (STATE_CPU (sd, 0)) -> exception; | |
179 | } | |
c906108c | 180 | |
dc5c3759 MS |
181 | static void |
182 | h8_set_exception (SIM_DESC sd, int val) | |
183 | { | |
184 | (STATE_CPU (sd, 0)) -> exception = val; | |
185 | } | |
0ef9643e | 186 | |
dc5c3759 MS |
187 | static enum h8300_sim_state |
188 | h8_get_state (SIM_DESC sd) | |
189 | { | |
190 | return sd -> state; | |
c906108c SS |
191 | } |
192 | ||
dc5c3759 MS |
193 | static void |
194 | h8_set_state (SIM_DESC sd, enum h8300_sim_state val) | |
d1360fb0 | 195 | { |
dc5c3759 MS |
196 | sd -> state = val; |
197 | } | |
198 | #endif | |
199 | static unsigned int | |
200 | h8_get_cycles (SIM_DESC sd) | |
201 | { | |
202 | return (STATE_CPU (sd, 0)) -> regs[CYCLE_REGNUM]; | |
203 | } | |
204 | ||
205 | static void | |
206 | h8_set_cycles (SIM_DESC sd, unsigned int val) | |
207 | { | |
208 | (STATE_CPU (sd, 0)) -> regs[CYCLE_REGNUM] = val; | |
d1360fb0 V |
209 | } |
210 | ||
c906108c | 211 | static unsigned int |
dc5c3759 | 212 | h8_get_insts (SIM_DESC sd) |
c906108c | 213 | { |
dc5c3759 MS |
214 | return (STATE_CPU (sd, 0)) -> regs[INST_REGNUM]; |
215 | } | |
0ef9643e | 216 | |
dc5c3759 MS |
217 | static void |
218 | h8_set_insts (SIM_DESC sd, unsigned int val) | |
219 | { | |
220 | (STATE_CPU (sd, 0)) -> regs[INST_REGNUM] = val; | |
221 | } | |
0ef9643e | 222 | |
dc5c3759 MS |
223 | static unsigned int |
224 | h8_get_ticks (SIM_DESC sd) | |
225 | { | |
226 | return (STATE_CPU (sd, 0)) -> regs[TICK_REGNUM]; | |
227 | } | |
c906108c | 228 | |
dc5c3759 MS |
229 | static void |
230 | h8_set_ticks (SIM_DESC sd, unsigned int val) | |
231 | { | |
232 | (STATE_CPU (sd, 0)) -> regs[TICK_REGNUM] = val; | |
233 | } | |
c906108c | 234 | |
dc5c3759 MS |
235 | static unsigned int |
236 | h8_get_mach (SIM_DESC sd) | |
237 | { | |
238 | return (STATE_CPU (sd, 0)) -> regs[MACH_REGNUM]; | |
239 | } | |
c906108c | 240 | |
dc5c3759 MS |
241 | static void |
242 | h8_set_mach (SIM_DESC sd, unsigned int val) | |
243 | { | |
244 | (STATE_CPU (sd, 0)) -> regs[MACH_REGNUM] = val; | |
245 | } | |
0ef9643e | 246 | |
dc5c3759 MS |
247 | static unsigned int |
248 | h8_get_macl (SIM_DESC sd) | |
249 | { | |
250 | return (STATE_CPU (sd, 0)) -> regs[MACL_REGNUM]; | |
251 | } | |
0ef9643e | 252 | |
dc5c3759 MS |
253 | static void |
254 | h8_set_macl (SIM_DESC sd, unsigned int val) | |
255 | { | |
256 | (STATE_CPU (sd, 0)) -> regs[MACL_REGNUM] = val; | |
257 | } | |
0ef9643e | 258 | |
dc5c3759 MS |
259 | static int |
260 | h8_get_compiles (SIM_DESC sd) | |
261 | { | |
262 | return sd -> compiles; | |
263 | } | |
0ef9643e | 264 | |
dc5c3759 MS |
265 | static void |
266 | h8_increment_compiles (SIM_DESC sd) | |
267 | { | |
268 | sd -> compiles ++; | |
269 | } | |
0ef9643e | 270 | |
dc5c3759 MS |
271 | static unsigned int * |
272 | h8_get_reg_buf (SIM_DESC sd) | |
273 | { | |
274 | return &(((STATE_CPU (sd, 0)) -> regs)[0]); | |
275 | } | |
0ef9643e | 276 | |
dc5c3759 MS |
277 | static unsigned int |
278 | h8_get_reg (SIM_DESC sd, int regnum) | |
279 | { | |
280 | return (STATE_CPU (sd, 0)) -> regs[regnum]; | |
281 | } | |
c906108c | 282 | |
dc5c3759 MS |
283 | static void |
284 | h8_set_reg (SIM_DESC sd, int regnum, int val) | |
285 | { | |
286 | (STATE_CPU (sd, 0)) -> regs[regnum] = val; | |
287 | } | |
0ef9643e | 288 | |
dc5c3759 MS |
289 | #ifdef ADEBUG |
290 | static int | |
291 | h8_get_stats (SIM_DESC sd, int idx) | |
292 | { | |
293 | return sd -> stats[idx]; | |
294 | } | |
c906108c | 295 | |
dc5c3759 MS |
296 | static void |
297 | h8_increment_stats (SIM_DESC sd, int idx) | |
298 | { | |
299 | sd -> stats[idx] ++; | |
300 | } | |
301 | #endif /* ADEBUG */ | |
c906108c | 302 | |
dc5c3759 MS |
303 | static unsigned short * |
304 | h8_get_cache_idx_buf (SIM_DESC sd) | |
305 | { | |
306 | return sd -> cache_idx; | |
307 | } | |
c906108c | 308 | |
dc5c3759 MS |
309 | static void |
310 | h8_set_cache_idx_buf (SIM_DESC sd, unsigned short *ptr) | |
311 | { | |
312 | sd -> cache_idx = ptr; | |
313 | } | |
c906108c | 314 | |
dc5c3759 MS |
315 | static unsigned short |
316 | h8_get_cache_idx (SIM_DESC sd, unsigned int idx) | |
317 | { | |
318 | if (idx > sd->memory_size) | |
319 | return (unsigned short) -1; | |
320 | return sd -> cache_idx[idx]; | |
321 | } | |
c906108c | 322 | |
dc5c3759 MS |
323 | static void |
324 | h8_set_cache_idx (SIM_DESC sd, int idx, unsigned int val) | |
325 | { | |
326 | sd -> cache_idx[idx] = (unsigned short) val; | |
327 | } | |
c906108c | 328 | |
dc5c3759 MS |
329 | static unsigned char * |
330 | h8_get_memory_buf (SIM_DESC sd) | |
331 | { | |
332 | return (STATE_CPU (sd, 0)) -> memory; | |
333 | } | |
c906108c | 334 | |
dc5c3759 MS |
335 | static void |
336 | h8_set_memory_buf (SIM_DESC sd, unsigned char *ptr) | |
337 | { | |
338 | (STATE_CPU (sd, 0)) -> memory = ptr; | |
339 | } | |
c906108c | 340 | |
dc5c3759 MS |
341 | static unsigned char |
342 | h8_get_memory (SIM_DESC sd, int idx) | |
343 | { | |
344 | return (STATE_CPU (sd, 0)) -> memory[idx]; | |
345 | } | |
c906108c | 346 | |
dc5c3759 MS |
347 | static void |
348 | h8_set_memory (SIM_DESC sd, int idx, unsigned int val) | |
349 | { | |
350 | (STATE_CPU (sd, 0)) -> memory[idx] = (unsigned char) val; | |
351 | } | |
c906108c | 352 | |
dc5c3759 MS |
353 | static unsigned char * |
354 | h8_get_eightbit_buf (SIM_DESC sd) | |
355 | { | |
356 | return (STATE_CPU (sd, 0)) -> eightbit; | |
357 | } | |
c906108c | 358 | |
dc5c3759 MS |
359 | static void |
360 | h8_set_eightbit_buf (SIM_DESC sd, unsigned char *ptr) | |
361 | { | |
362 | (STATE_CPU (sd, 0)) -> eightbit = ptr; | |
363 | } | |
c906108c | 364 | |
dc5c3759 MS |
365 | static unsigned char |
366 | h8_get_eightbit (SIM_DESC sd, int idx) | |
367 | { | |
368 | return (STATE_CPU (sd, 0)) -> eightbit[idx]; | |
369 | } | |
c906108c | 370 | |
dc5c3759 MS |
371 | static void |
372 | h8_set_eightbit (SIM_DESC sd, int idx, unsigned int val) | |
373 | { | |
374 | (STATE_CPU (sd, 0)) -> eightbit[idx] = (unsigned char) val; | |
375 | } | |
c906108c | 376 | |
dc5c3759 MS |
377 | static unsigned int |
378 | h8_get_delayed_branch (SIM_DESC sd) | |
379 | { | |
380 | return (STATE_CPU (sd, 0)) -> delayed_branch; | |
c906108c SS |
381 | } |
382 | ||
c906108c | 383 | static void |
dc5c3759 | 384 | h8_set_delayed_branch (SIM_DESC sd, unsigned int dest) |
c906108c | 385 | { |
dc5c3759 MS |
386 | (STATE_CPU (sd, 0)) -> delayed_branch = dest; |
387 | } | |
c906108c | 388 | |
dc5c3759 MS |
389 | static char ** |
390 | h8_get_command_line (SIM_DESC sd) | |
391 | { | |
392 | return (STATE_CPU (sd, 0)) -> command_line; | |
393 | } | |
c906108c | 394 | |
dc5c3759 MS |
395 | static void |
396 | h8_set_command_line (SIM_DESC sd, char ** val) | |
397 | { | |
398 | (STATE_CPU (sd, 0)) -> command_line = val; | |
399 | } | |
c906108c | 400 | |
dc5c3759 MS |
401 | static char * |
402 | h8_get_cmdline_arg (SIM_DESC sd, int index) | |
403 | { | |
404 | return (STATE_CPU (sd, 0)) -> command_line[index]; | |
405 | } | |
c906108c | 406 | |
dc5c3759 MS |
407 | static void |
408 | h8_set_cmdline_arg (SIM_DESC sd, int index, char * val) | |
409 | { | |
410 | (STATE_CPU (sd, 0)) -> command_line[index] = val; | |
411 | } | |
c906108c | 412 | |
dc5c3759 MS |
413 | /* MAC Saturation Mode */ |
414 | static int | |
415 | h8_get_macS (SIM_DESC sd) | |
416 | { | |
417 | return (STATE_CPU (sd, 0)) -> macS; | |
c906108c SS |
418 | } |
419 | ||
dc5c3759 MS |
420 | static void |
421 | h8_set_macS (SIM_DESC sd, int val) | |
422 | { | |
423 | (STATE_CPU (sd, 0)) -> macS = (val != 0); | |
424 | } | |
c906108c | 425 | |
dc5c3759 MS |
426 | /* MAC Zero Flag */ |
427 | static int | |
428 | h8_get_macZ (SIM_DESC sd) | |
429 | { | |
430 | return (STATE_CPU (sd, 0)) -> macZ; | |
431 | } | |
c906108c | 432 | |
dc5c3759 MS |
433 | static void |
434 | h8_set_macZ (SIM_DESC sd, int val) | |
435 | { | |
436 | (STATE_CPU (sd, 0)) -> macZ = (val != 0); | |
437 | } | |
c906108c | 438 | |
dc5c3759 MS |
439 | /* MAC Negative Flag */ |
440 | static int | |
441 | h8_get_macN (SIM_DESC sd) | |
442 | { | |
443 | return (STATE_CPU (sd, 0)) -> macN; | |
444 | } | |
c906108c | 445 | |
dc5c3759 MS |
446 | static void |
447 | h8_set_macN (SIM_DESC sd, int val) | |
448 | { | |
449 | (STATE_CPU (sd, 0)) -> macN = (val != 0); | |
450 | } | |
c906108c | 451 | |
dc5c3759 MS |
452 | /* MAC Overflow Flag */ |
453 | static int | |
454 | h8_get_macV (SIM_DESC sd) | |
455 | { | |
456 | return (STATE_CPU (sd, 0)) -> macV; | |
457 | } | |
c906108c | 458 | |
dc5c3759 MS |
459 | static void |
460 | h8_set_macV (SIM_DESC sd, int val) | |
461 | { | |
462 | (STATE_CPU (sd, 0)) -> macV = (val != 0); | |
463 | } | |
c906108c | 464 | |
dc5c3759 | 465 | /* End CPU data object. */ |
c906108c | 466 | |
dc5c3759 | 467 | /* The rate at which to call the host's poll_quit callback. */ |
c906108c | 468 | |
dc5c3759 | 469 | enum { POLL_QUIT_INTERVAL = 0x80000 }; |
c906108c | 470 | |
dc5c3759 MS |
471 | #define LOW_BYTE(x) ((x) & 0xff) |
472 | #define HIGH_BYTE(x) (((x) >> 8) & 0xff) | |
473 | #define P(X, Y) ((X << 8) | Y) | |
c906108c | 474 | |
dc5c3759 MS |
475 | #define C (c != 0) |
476 | #define Z (nz == 0) | |
477 | #define V (v != 0) | |
478 | #define N (n != 0) | |
479 | #define U (u != 0) | |
480 | #define H (h != 0) | |
481 | #define UI (ui != 0) | |
482 | #define I (intMaskBit != 0) | |
c906108c | 483 | |
dc5c3759 MS |
484 | #define BUILDSR(SD) \ |
485 | h8_set_ccr (SD, (I << 7) | (UI << 6) | (H << 5) | (U << 4) \ | |
486 | | (N << 3) | (Z << 2) | (V << 1) | C) | |
c906108c | 487 | |
9f70f8ec MS |
488 | #define GETSR(SD) \ |
489 | /* Get Status Register (flags). */ \ | |
490 | c = (h8_get_ccr (sd) >> 0) & 1; \ | |
491 | v = (h8_get_ccr (sd) >> 1) & 1; \ | |
492 | nz = !((h8_get_ccr (sd) >> 2) & 1); \ | |
493 | n = (h8_get_ccr (sd) >> 3) & 1; \ | |
494 | u = (h8_get_ccr (sd) >> 4) & 1; \ | |
495 | h = (h8_get_ccr (sd) >> 5) & 1; \ | |
496 | ui = ((h8_get_ccr (sd) >> 6) & 1); \ | |
497 | intMaskBit = (h8_get_ccr (sd) >> 7) & 1 | |
498 | ||
499 | ||
dc5c3759 MS |
500 | #ifdef __CHAR_IS_SIGNED__ |
501 | #define SEXTCHAR(x) ((char) (x)) | |
502 | #endif | |
c906108c | 503 | |
dc5c3759 MS |
504 | #ifndef SEXTCHAR |
505 | #define SEXTCHAR(x) ((x & 0x80) ? (x | ~0xff) : x & 0xff) | |
506 | #endif | |
c906108c | 507 | |
dc5c3759 MS |
508 | #define UEXTCHAR(x) ((x) & 0xff) |
509 | #define UEXTSHORT(x) ((x) & 0xffff) | |
510 | #define SEXTSHORT(x) ((short) (x)) | |
c906108c | 511 | |
dc5c3759 MS |
512 | int h8300hmode = 0; |
513 | int h8300smode = 0; | |
59768597 | 514 | int h8300_normal_mode = 0; |
dc5c3759 | 515 | int h8300sxmode = 0; |
c906108c | 516 | |
dc5c3759 | 517 | static int memory_size; |
c906108c | 518 | |
dc5c3759 MS |
519 | static int |
520 | get_now (void) | |
521 | { | |
522 | return time (0); /* WinXX HAS UNIX like 'time', so why not use it? */ | |
523 | } | |
c906108c | 524 | |
dc5c3759 MS |
525 | static int |
526 | now_persec (void) | |
527 | { | |
528 | return 1; | |
529 | } | |
c906108c | 530 | |
dc5c3759 MS |
531 | static int |
532 | bitfrom (int x) | |
533 | { | |
534 | switch (x & SIZE) | |
535 | { | |
536 | case L_8: | |
537 | return SB; | |
538 | case L_16: | |
539 | case L_16U: | |
540 | return SW; | |
541 | case L_32: | |
542 | return SL; | |
543 | case L_P: | |
59768597 | 544 | return (h8300hmode && !h8300_normal_mode)? SL : SW; |
c906108c | 545 | } |
dc5c3759 | 546 | return 0; |
c906108c SS |
547 | } |
548 | ||
dc5c3759 MS |
549 | /* Simulate an indirection / dereference. |
550 | return 0 for success, -1 for failure. | |
551 | */ | |
c906108c | 552 | |
dc5c3759 MS |
553 | static unsigned int |
554 | lvalue (SIM_DESC sd, int x, int rn, unsigned int *val) | |
c906108c | 555 | { |
dc5c3759 MS |
556 | if (val == NULL) /* Paranoia. */ |
557 | return -1; | |
c906108c | 558 | |
dc5c3759 | 559 | switch (x / 4) |
c906108c | 560 | { |
dc5c3759 MS |
561 | case OP_DISP: |
562 | if (rn == ZERO_REGNUM) | |
563 | *val = X (OP_IMM, SP); | |
564 | else | |
565 | *val = X (OP_REG, SP); | |
c906108c | 566 | break; |
dc5c3759 MS |
567 | case OP_MEM: |
568 | *val = X (OP_MEM, SP); | |
c906108c SS |
569 | break; |
570 | default: | |
dc5c3759 MS |
571 | sim_engine_set_run_state (sd, sim_stopped, SIGSEGV); |
572 | return -1; | |
c906108c | 573 | } |
dc5c3759 | 574 | return 0; |
c906108c SS |
575 | } |
576 | ||
dc5c3759 MS |
577 | static int |
578 | cmdline_location() | |
c906108c | 579 | { |
59768597 | 580 | if (h8300smode && !h8300_normal_mode) |
dc5c3759 | 581 | return 0xffff00L; |
59768597 | 582 | else if (h8300hmode && !h8300_normal_mode) |
dc5c3759 MS |
583 | return 0x2ff00L; |
584 | else | |
585 | return 0xff00L; | |
c906108c SS |
586 | } |
587 | ||
de9b1892 | 588 | static void |
dc5c3759 | 589 | decode (SIM_DESC sd, int addr, unsigned char *data, decoded_inst *dst) |
c906108c | 590 | { |
dc5c3759 MS |
591 | int cst[3] = {0, 0, 0}; |
592 | int reg[3] = {0, 0, 0}; | |
593 | int rdisp[3] = {0, 0, 0}; | |
594 | int opnum; | |
595 | const struct h8_opcode *q; | |
c906108c | 596 | |
dc5c3759 MS |
597 | dst->dst.type = -1; |
598 | dst->src.type = -1; | |
c906108c | 599 | |
dc5c3759 MS |
600 | /* Find the exact opcode/arg combo. */ |
601 | for (q = h8_opcodes; q->name; q++) | |
602 | { | |
c4212d37 | 603 | const op_type *nib = q->data.nib; |
dc5c3759 | 604 | unsigned int len = 0; |
c906108c | 605 | |
dc5c3759 | 606 | if ((q->available == AV_H8SX && !h8300sxmode) || |
9f70f8ec | 607 | (q->available == AV_H8S && !h8300smode) || |
dc5c3759 MS |
608 | (q->available == AV_H8H && !h8300hmode)) |
609 | continue; | |
c906108c | 610 | |
f408565c MS |
611 | cst[0] = cst[1] = cst[2] = 0; |
612 | reg[0] = reg[1] = reg[2] = 0; | |
613 | rdisp[0] = rdisp[1] = rdisp[2] = 0; | |
614 | ||
dc5c3759 | 615 | while (1) |
c906108c | 616 | { |
dc5c3759 MS |
617 | op_type looking_for = *nib; |
618 | int thisnib = data[len / 2]; | |
c906108c | 619 | |
dc5c3759 MS |
620 | thisnib = (len & 1) ? (thisnib & 0xf) : ((thisnib >> 4) & 0xf); |
621 | opnum = ((looking_for & OP3) ? 2 : | |
622 | (looking_for & DST) ? 1 : 0); | |
623 | ||
624 | if (looking_for < 16 && looking_for >= 0) | |
c906108c | 625 | { |
dc5c3759 MS |
626 | if (looking_for != thisnib) |
627 | goto fail; | |
c906108c | 628 | } |
dc5c3759 | 629 | else |
c906108c | 630 | { |
dc5c3759 | 631 | if (looking_for & B31) |
c906108c | 632 | { |
dc5c3759 MS |
633 | if (!((thisnib & 0x8) != 0)) |
634 | goto fail; | |
635 | ||
636 | looking_for = (op_type) (looking_for & ~B31); | |
637 | thisnib &= 0x7; | |
c906108c | 638 | } |
dc5c3759 | 639 | else if (looking_for & B30) |
c906108c | 640 | { |
dc5c3759 MS |
641 | if (!((thisnib & 0x8) == 0)) |
642 | goto fail; | |
643 | ||
644 | looking_for = (op_type) (looking_for & ~B30); | |
c906108c | 645 | } |
c906108c | 646 | |
dc5c3759 MS |
647 | if (looking_for & B21) |
648 | { | |
649 | if (!((thisnib & 0x4) != 0)) | |
650 | goto fail; | |
c906108c | 651 | |
dc5c3759 MS |
652 | looking_for = (op_type) (looking_for & ~B21); |
653 | thisnib &= 0xb; | |
654 | } | |
655 | else if (looking_for & B20) | |
656 | { | |
657 | if (!((thisnib & 0x4) == 0)) | |
658 | goto fail; | |
c906108c | 659 | |
dc5c3759 MS |
660 | looking_for = (op_type) (looking_for & ~B20); |
661 | } | |
c906108c | 662 | |
dc5c3759 MS |
663 | if (looking_for & B11) |
664 | { | |
665 | if (!((thisnib & 0x2) != 0)) | |
666 | goto fail; | |
c906108c | 667 | |
dc5c3759 MS |
668 | looking_for = (op_type) (looking_for & ~B11); |
669 | thisnib &= 0xd; | |
670 | } | |
671 | else if (looking_for & B10) | |
672 | { | |
673 | if (!((thisnib & 0x2) == 0)) | |
674 | goto fail; | |
c906108c | 675 | |
dc5c3759 MS |
676 | looking_for = (op_type) (looking_for & ~B10); |
677 | } | |
c906108c | 678 | |
dc5c3759 MS |
679 | if (looking_for & B01) |
680 | { | |
681 | if (!((thisnib & 0x1) != 0)) | |
682 | goto fail; | |
c906108c | 683 | |
dc5c3759 MS |
684 | looking_for = (op_type) (looking_for & ~B01); |
685 | thisnib &= 0xe; | |
686 | } | |
687 | else if (looking_for & B00) | |
688 | { | |
689 | if (!((thisnib & 0x1) == 0)) | |
690 | goto fail; | |
c906108c | 691 | |
dc5c3759 MS |
692 | looking_for = (op_type) (looking_for & ~B00); |
693 | } | |
c906108c | 694 | |
dc5c3759 MS |
695 | if (looking_for & IGNORE) |
696 | { | |
697 | /* Hitachi has declared that IGNORE must be zero. */ | |
698 | if (thisnib != 0) | |
699 | goto fail; | |
700 | } | |
701 | else if ((looking_for & MODE) == DATA) | |
702 | { | |
703 | ; /* Skip embedded data. */ | |
704 | } | |
705 | else if ((looking_for & MODE) == DBIT) | |
706 | { | |
707 | /* Exclude adds/subs by looking at bit 0 and 2, and | |
708 | make sure the operand size, either w or l, | |
709 | matches by looking at bit 1. */ | |
710 | if ((looking_for & 7) != (thisnib & 7)) | |
711 | goto fail; | |
c906108c | 712 | |
dc5c3759 MS |
713 | cst[opnum] = (thisnib & 0x8) ? 2 : 1; |
714 | } | |
715 | else if ((looking_for & MODE) == REG || | |
716 | (looking_for & MODE) == LOWREG || | |
717 | (looking_for & MODE) == IND || | |
718 | (looking_for & MODE) == PREINC || | |
719 | (looking_for & MODE) == POSTINC || | |
720 | (looking_for & MODE) == PREDEC || | |
721 | (looking_for & MODE) == POSTDEC) | |
722 | { | |
723 | reg[opnum] = thisnib; | |
724 | } | |
725 | else if (looking_for & CTRL) | |
726 | { | |
727 | thisnib &= 7; | |
728 | if (((looking_for & MODE) == CCR && (thisnib != C_CCR)) || | |
729 | ((looking_for & MODE) == EXR && (thisnib != C_EXR)) || | |
730 | ((looking_for & MODE) == MACH && (thisnib != C_MACH)) || | |
731 | ((looking_for & MODE) == MACL && (thisnib != C_MACL)) || | |
732 | ((looking_for & MODE) == VBR && (thisnib != C_VBR)) || | |
733 | ((looking_for & MODE) == SBR && (thisnib != C_SBR))) | |
734 | goto fail; | |
735 | if (((looking_for & MODE) == CCR_EXR && | |
736 | (thisnib != C_CCR && thisnib != C_EXR)) || | |
737 | ((looking_for & MODE) == VBR_SBR && | |
738 | (thisnib != C_VBR && thisnib != C_SBR)) || | |
739 | ((looking_for & MODE) == MACREG && | |
740 | (thisnib != C_MACH && thisnib != C_MACL))) | |
741 | goto fail; | |
742 | if (((looking_for & MODE) == CC_EX_VB_SB && | |
743 | (thisnib != C_CCR && thisnib != C_EXR && | |
744 | thisnib != C_VBR && thisnib != C_SBR))) | |
745 | goto fail; | |
c906108c | 746 | |
dc5c3759 MS |
747 | reg[opnum] = thisnib; |
748 | } | |
749 | else if ((looking_for & MODE) == ABS) | |
750 | { | |
751 | /* Absolute addresses are unsigned. */ | |
752 | switch (looking_for & SIZE) | |
753 | { | |
754 | case L_8: | |
755 | cst[opnum] = UEXTCHAR (data[len / 2]); | |
756 | break; | |
757 | case L_16: | |
758 | case L_16U: | |
759 | cst[opnum] = (data[len / 2] << 8) + data[len / 2 + 1]; | |
760 | break; | |
761 | case L_32: | |
762 | cst[opnum] = | |
763 | (data[len / 2 + 0] << 24) + | |
764 | (data[len / 2 + 1] << 16) + | |
765 | (data[len / 2 + 2] << 8) + | |
766 | (data[len / 2 + 3]); | |
767 | break; | |
768 | default: | |
769 | printf ("decode: bad size ABS: %d\n", | |
770 | (looking_for & SIZE)); | |
771 | goto end; | |
772 | } | |
773 | } | |
774 | else if ((looking_for & MODE) == DISP || | |
775 | (looking_for & MODE) == PCREL || | |
776 | (looking_for & MODE) == INDEXB || | |
777 | (looking_for & MODE) == INDEXW || | |
778 | (looking_for & MODE) == INDEXL) | |
dc5c3759 MS |
779 | { |
780 | switch (looking_for & SIZE) | |
781 | { | |
782 | case L_2: | |
783 | cst[opnum] = thisnib & 3; | |
dc5c3759 MS |
784 | break; |
785 | case L_8: | |
786 | cst[opnum] = SEXTCHAR (data[len / 2]); | |
787 | break; | |
788 | case L_16: | |
789 | cst[opnum] = (data[len / 2] << 8) + data[len / 2 + 1]; | |
790 | cst[opnum] = (short) cst[opnum]; /* Sign extend. */ | |
791 | break; | |
792 | case L_16U: | |
793 | cst[opnum] = (data[len / 2] << 8) + data[len / 2 + 1]; | |
794 | break; | |
795 | case L_32: | |
796 | cst[opnum] = | |
797 | (data[len / 2 + 0] << 24) + | |
798 | (data[len / 2 + 1] << 16) + | |
799 | (data[len / 2 + 2] << 8) + | |
800 | (data[len / 2 + 3]); | |
801 | break; | |
802 | default: | |
803 | printf ("decode: bad size DISP/PCREL/INDEX: %d\n", | |
804 | (looking_for & SIZE)); | |
805 | goto end; | |
806 | } | |
807 | } | |
808 | else if ((looking_for & SIZE) == L_16 || | |
809 | (looking_for & SIZE) == L_16U) | |
810 | { | |
811 | cst[opnum] = (data[len / 2] << 8) + data[len / 2 + 1]; | |
0f42aa71 MS |
812 | /* Immediates are always unsigned. */ |
813 | if ((looking_for & SIZE) != L_16U && | |
814 | (looking_for & MODE) != IMM) | |
dc5c3759 MS |
815 | cst[opnum] = (short) cst[opnum]; /* Sign extend. */ |
816 | } | |
817 | else if (looking_for & ABSJMP) | |
818 | { | |
819 | switch (looking_for & SIZE) { | |
820 | case L_24: | |
821 | cst[opnum] = (data[1] << 16) | (data[2] << 8) | (data[3]); | |
822 | break; | |
823 | case L_32: | |
824 | cst[opnum] = | |
825 | (data[len / 2 + 0] << 24) + | |
826 | (data[len / 2 + 1] << 16) + | |
827 | (data[len / 2 + 2] << 8) + | |
828 | (data[len / 2 + 3]); | |
829 | break; | |
830 | default: | |
831 | printf ("decode: bad size ABSJMP: %d\n", | |
832 | (looking_for & SIZE)); | |
833 | goto end; | |
834 | } | |
835 | } | |
836 | else if ((looking_for & MODE) == MEMIND) | |
837 | { | |
838 | cst[opnum] = data[1]; | |
839 | } | |
9f70f8ec MS |
840 | else if ((looking_for & MODE) == VECIND) |
841 | { | |
59768597 SA |
842 | if(h8300_normal_mode) |
843 | cst[opnum] = ((data[1] & 0x7f) + 0x80) * 2; | |
844 | else | |
845 | cst[opnum] = ((data[1] & 0x7f) + 0x80) * 4; | |
9f70f8ec MS |
846 | cst[opnum] += h8_get_vbr (sd); /* Add vector base reg. */ |
847 | } | |
dc5c3759 MS |
848 | else if ((looking_for & SIZE) == L_32) |
849 | { | |
850 | int i = len / 2; | |
6147b1f6 | 851 | |
dc5c3759 MS |
852 | cst[opnum] = |
853 | (data[i + 0] << 24) | | |
854 | (data[i + 1] << 16) | | |
855 | (data[i + 2] << 8) | | |
856 | (data[i + 3]); | |
857 | } | |
858 | else if ((looking_for & SIZE) == L_24) | |
859 | { | |
860 | int i = len / 2; | |
6147b1f6 | 861 | |
dc5c3759 MS |
862 | cst[opnum] = |
863 | (data[i + 0] << 16) | | |
864 | (data[i + 1] << 8) | | |
865 | (data[i + 2]); | |
866 | } | |
867 | else if (looking_for & DISPREG) | |
868 | { | |
869 | rdisp[opnum] = thisnib & 0x7; | |
870 | } | |
871 | else if ((looking_for & MODE) == KBIT) | |
872 | { | |
873 | switch (thisnib) | |
874 | { | |
875 | case 9: | |
876 | cst[opnum] = 4; | |
877 | break; | |
878 | case 8: | |
879 | cst[opnum] = 2; | |
880 | break; | |
881 | case 0: | |
882 | cst[opnum] = 1; | |
883 | break; | |
884 | default: | |
885 | goto fail; | |
886 | } | |
887 | } | |
888 | else if ((looking_for & SIZE) == L_8) | |
889 | { | |
890 | if ((looking_for & MODE) == ABS) | |
891 | { | |
892 | /* Will be combined with contents of SBR_REGNUM | |
893 | by fetch (). For all modes except h8sx, this | |
894 | will always contain the value 0xFFFFFF00. */ | |
895 | cst[opnum] = data[len / 2] & 0xff; | |
896 | } | |
897 | else | |
898 | { | |
899 | cst[opnum] = data[len / 2] & 0xff; | |
900 | } | |
901 | } | |
9f70f8ec MS |
902 | else if ((looking_for & SIZE) == L_2) |
903 | { | |
904 | cst[opnum] = thisnib & 3; | |
905 | } | |
dc5c3759 MS |
906 | else if ((looking_for & SIZE) == L_3 || |
907 | (looking_for & SIZE) == L_3NZ) | |
908 | { | |
909 | cst[opnum] = thisnib & 7; | |
910 | if (cst[opnum] == 0 && (looking_for & SIZE) == L_3NZ) | |
911 | goto fail; | |
912 | } | |
913 | else if ((looking_for & SIZE) == L_4) | |
914 | { | |
915 | cst[opnum] = thisnib & 15; | |
916 | } | |
917 | else if ((looking_for & SIZE) == L_5) | |
918 | { | |
919 | cst[opnum] = data[len / 2] & 0x1f; | |
920 | } | |
921 | else if (looking_for == E) | |
922 | { | |
923 | #ifdef ADEBUG | |
924 | dst->op = q; | |
925 | #endif | |
926 | /* Fill in the args. */ | |
927 | { | |
c4212d37 | 928 | const op_type *args = q->args.nib; |
dc5c3759 MS |
929 | int hadone = 0; |
930 | int nargs; | |
6147b1f6 | 931 | |
dc5c3759 MS |
932 | for (nargs = 0; |
933 | nargs < 3 && *args != E; | |
934 | nargs++) | |
935 | { | |
936 | int x = *args; | |
937 | ea_type *p; | |
c906108c | 938 | |
dc5c3759 MS |
939 | opnum = ((x & OP3) ? 2 : |
940 | (x & DST) ? 1 : 0); | |
941 | if (x & DST) | |
942 | p = &dst->dst; | |
943 | else if (x & OP3) | |
944 | p = &dst->op3; | |
945 | else | |
946 | p = &dst->src; | |
c906108c | 947 | |
dc5c3759 MS |
948 | if ((x & MODE) == IMM || |
949 | (x & MODE) == KBIT || | |
950 | (x & MODE) == DBIT) | |
951 | { | |
952 | /* Use the instruction to determine | |
953 | the operand size. */ | |
954 | p->type = X (OP_IMM, OP_SIZE (q->how)); | |
955 | p->literal = cst[opnum]; | |
956 | } | |
957 | else if ((x & MODE) == CONST_2 || | |
958 | (x & MODE) == CONST_4 || | |
959 | (x & MODE) == CONST_8 || | |
960 | (x & MODE) == CONST_16) | |
961 | { | |
962 | /* Use the instruction to determine | |
963 | the operand size. */ | |
964 | p->type = X (OP_IMM, OP_SIZE (q->how)); | |
965 | switch (x & MODE) { | |
966 | case CONST_2: p->literal = 2; break; | |
967 | case CONST_4: p->literal = 4; break; | |
968 | case CONST_8: p->literal = 8; break; | |
969 | case CONST_16: p->literal = 16; break; | |
970 | } | |
971 | } | |
972 | else if ((x & MODE) == REG) | |
973 | { | |
974 | p->type = X (OP_REG, bitfrom (x)); | |
975 | p->reg = reg[opnum]; | |
976 | } | |
977 | else if ((x & MODE) == LOWREG) | |
978 | { | |
979 | p->type = X (OP_LOWREG, bitfrom (x)); | |
980 | p->reg = reg[opnum]; | |
981 | } | |
982 | else if ((x & MODE) == PREINC) | |
983 | { | |
984 | /* Use the instruction to determine | |
985 | the operand size. */ | |
986 | p->type = X (OP_PREINC, OP_SIZE (q->how)); | |
987 | p->reg = reg[opnum] & 0x7; | |
988 | } | |
989 | else if ((x & MODE) == POSTINC) | |
990 | { | |
991 | /* Use the instruction to determine | |
992 | the operand size. */ | |
993 | p->type = X (OP_POSTINC, OP_SIZE (q->how)); | |
994 | p->reg = reg[opnum] & 0x7; | |
995 | } | |
996 | else if ((x & MODE) == PREDEC) | |
997 | { | |
998 | /* Use the instruction to determine | |
999 | the operand size. */ | |
1000 | p->type = X (OP_PREDEC, OP_SIZE (q->how)); | |
1001 | p->reg = reg[opnum] & 0x7; | |
1002 | } | |
1003 | else if ((x & MODE) == POSTDEC) | |
1004 | { | |
1005 | /* Use the instruction to determine | |
1006 | the operand size. */ | |
1007 | p->type = X (OP_POSTDEC, OP_SIZE (q->how)); | |
1008 | p->reg = reg[opnum] & 0x7; | |
1009 | } | |
1010 | else if ((x & MODE) == IND) | |
1011 | { | |
1012 | /* Note: an indirect is transformed into | |
1013 | a displacement of zero. | |
1014 | */ | |
1015 | /* Use the instruction to determine | |
1016 | the operand size. */ | |
1017 | p->type = X (OP_DISP, OP_SIZE (q->how)); | |
1018 | p->reg = reg[opnum] & 0x7; | |
1019 | p->literal = 0; | |
1020 | if (OP_KIND (q->how) == O_JSR || | |
1021 | OP_KIND (q->how) == O_JMP) | |
b86015ea | 1022 | if (lvalue (sd, p->type, p->reg, (unsigned int *)&p->type)) |
dc5c3759 MS |
1023 | goto end; |
1024 | } | |
1025 | else if ((x & MODE) == ABS) | |
1026 | { | |
1027 | /* Note: a 16 or 32 bit ABS is transformed into a | |
1028 | displacement from pseudo-register ZERO_REGNUM, | |
1029 | which is always zero. An 8 bit ABS becomes | |
1030 | a displacement from SBR_REGNUM. | |
1031 | */ | |
1032 | /* Use the instruction to determine | |
1033 | the operand size. */ | |
1034 | p->type = X (OP_DISP, OP_SIZE (q->how)); | |
1035 | p->literal = cst[opnum]; | |
1036 | ||
1037 | /* 8-bit ABS is displacement from SBR. | |
1038 | 16 and 32-bit ABS are displacement from ZERO. | |
1039 | (SBR will always be zero except for h8/sx) | |
1040 | */ | |
1041 | if ((x & SIZE) == L_8) | |
1042 | p->reg = SBR_REGNUM; | |
1043 | else | |
1044 | p->reg = ZERO_REGNUM;; | |
1045 | } | |
9f70f8ec MS |
1046 | else if ((x & MODE) == MEMIND || |
1047 | (x & MODE) == VECIND) | |
dc5c3759 MS |
1048 | { |
1049 | /* Size doesn't matter. */ | |
1050 | p->type = X (OP_MEM, SB); | |
1051 | p->literal = cst[opnum]; | |
1052 | if (OP_KIND (q->how) == O_JSR || | |
1053 | OP_KIND (q->how) == O_JMP) | |
b86015ea | 1054 | if (lvalue (sd, p->type, p->reg, (unsigned int *)&p->type)) |
dc5c3759 MS |
1055 | goto end; |
1056 | } | |
1057 | else if ((x & MODE) == PCREL) | |
1058 | { | |
1059 | /* Size doesn't matter. */ | |
1060 | p->type = X (OP_PCREL, SB); | |
1061 | p->literal = cst[opnum]; | |
1062 | } | |
1063 | else if (x & ABSJMP) | |
1064 | { | |
1065 | p->type = X (OP_IMM, SP); | |
1066 | p->literal = cst[opnum]; | |
1067 | } | |
f408565c | 1068 | else if ((x & MODE) == INDEXB) |
dc5c3759 | 1069 | { |
f408565c MS |
1070 | p->type = X (OP_INDEXB, OP_SIZE (q->how)); |
1071 | p->literal = cst[opnum]; | |
1072 | p->reg = rdisp[opnum]; | |
1073 | } | |
1074 | else if ((x & MODE) == INDEXW) | |
1075 | { | |
1076 | p->type = X (OP_INDEXW, OP_SIZE (q->how)); | |
dc5c3759 MS |
1077 | p->literal = cst[opnum]; |
1078 | p->reg = rdisp[opnum]; | |
1079 | } | |
f408565c MS |
1080 | else if ((x & MODE) == INDEXL) |
1081 | { | |
1082 | p->type = X (OP_INDEXL, OP_SIZE (q->how)); | |
1083 | p->literal = cst[opnum]; | |
1084 | p->reg = rdisp[opnum]; | |
1085 | } | |
1086 | else if ((x & MODE) == DISP) | |
1087 | { | |
1088 | /* Yuck -- special for mova args. */ | |
1089 | if (strncmp (q->name, "mova", 4) == 0 && | |
1090 | (x & SIZE) == L_2) | |
1091 | { | |
1092 | /* Mova can have a DISP2 dest, with an | |
1093 | INDEXB or INDEXW src. The multiplier | |
1094 | for the displacement value is determined | |
1095 | by the src operand, not by the insn. */ | |
1096 | ||
1097 | switch (OP_KIND (dst->src.type)) | |
1098 | { | |
1099 | case OP_INDEXB: | |
1100 | p->type = X (OP_DISP, SB); | |
1101 | p->literal = cst[opnum]; | |
1102 | break; | |
1103 | case OP_INDEXW: | |
1104 | p->type = X (OP_DISP, SW); | |
1105 | p->literal = cst[opnum] * 2; | |
1106 | break; | |
1107 | default: | |
1108 | goto fail; | |
1109 | } | |
1110 | } | |
1111 | else | |
1112 | { | |
1113 | p->type = X (OP_DISP, OP_SIZE (q->how)); | |
1114 | p->literal = cst[opnum]; | |
1115 | /* DISP2 is special. */ | |
1116 | if ((x & SIZE) == L_2) | |
1117 | switch (OP_SIZE (q->how)) | |
1118 | { | |
1119 | case SB: break; | |
1120 | case SW: p->literal *= 2; break; | |
1121 | case SL: p->literal *= 4; break; | |
1122 | } | |
1123 | } | |
1124 | p->reg = rdisp[opnum]; | |
1125 | } | |
dc5c3759 MS |
1126 | else if (x & CTRL) |
1127 | { | |
1128 | switch (reg[opnum]) | |
1129 | { | |
1130 | case C_CCR: | |
1131 | p->type = X (OP_CCR, SB); | |
1132 | break; | |
1133 | case C_EXR: | |
1134 | p->type = X (OP_EXR, SB); | |
1135 | break; | |
1136 | case C_MACH: | |
1137 | p->type = X (OP_MACH, SL); | |
1138 | break; | |
1139 | case C_MACL: | |
1140 | p->type = X (OP_MACL, SL); | |
1141 | break; | |
1142 | case C_VBR: | |
1143 | p->type = X (OP_VBR, SL); | |
1144 | break; | |
1145 | case C_SBR: | |
1146 | p->type = X (OP_SBR, SL); | |
1147 | break; | |
1148 | } | |
1149 | } | |
1150 | else if ((x & MODE) == CCR) | |
1151 | { | |
1152 | p->type = OP_CCR; | |
1153 | } | |
1154 | else if ((x & MODE) == EXR) | |
1155 | { | |
1156 | p->type = OP_EXR; | |
1157 | } | |
1158 | else | |
9f70f8ec | 1159 | printf ("Hmmmm 0x%x...\n", x); |
c906108c | 1160 | |
dc5c3759 MS |
1161 | args++; |
1162 | } | |
1163 | } | |
c906108c | 1164 | |
dc5c3759 MS |
1165 | /* Unary operators: treat src and dst as equivalent. */ |
1166 | if (dst->dst.type == -1) | |
1167 | dst->dst = dst->src; | |
1168 | if (dst->src.type == -1) | |
1169 | dst->src = dst->dst; | |
1170 | ||
1171 | dst->opcode = q->how; | |
1172 | dst->cycles = q->time; | |
c906108c | 1173 | |
dc5c3759 MS |
1174 | /* And jsr's to these locations are turned into |
1175 | magic traps. */ | |
fc974602 | 1176 | |
dc5c3759 MS |
1177 | if (OP_KIND (dst->opcode) == O_JSR) |
1178 | { | |
1179 | switch (dst->src.literal) | |
1180 | { | |
1181 | case 0xc5: | |
1182 | dst->opcode = O (O_SYS_OPEN, SB); | |
1183 | break; | |
1184 | case 0xc6: | |
1185 | dst->opcode = O (O_SYS_READ, SB); | |
1186 | break; | |
1187 | case 0xc7: | |
1188 | dst->opcode = O (O_SYS_WRITE, SB); | |
1189 | break; | |
1190 | case 0xc8: | |
1191 | dst->opcode = O (O_SYS_LSEEK, SB); | |
1192 | break; | |
1193 | case 0xc9: | |
1194 | dst->opcode = O (O_SYS_CLOSE, SB); | |
1195 | break; | |
1196 | case 0xca: | |
1197 | dst->opcode = O (O_SYS_STAT, SB); | |
1198 | break; | |
1199 | case 0xcb: | |
1200 | dst->opcode = O (O_SYS_FSTAT, SB); | |
1201 | break; | |
1202 | case 0xcc: | |
1203 | dst->opcode = O (O_SYS_CMDLINE, SB); | |
1204 | break; | |
1205 | } | |
1206 | /* End of Processing for system calls. */ | |
1207 | } | |
1208 | ||
1209 | dst->next_pc = addr + len / 2; | |
1210 | return; | |
1211 | } | |
1212 | else | |
9f70f8ec | 1213 | printf ("Don't understand 0x%x \n", looking_for); |
dc5c3759 MS |
1214 | } |
1215 | ||
1216 | len++; | |
1217 | nib++; | |
1218 | } | |
1219 | ||
1220 | fail: | |
1221 | ; | |
1222 | } | |
1223 | end: | |
1224 | /* Fell off the end. */ | |
1225 | dst->opcode = O (O_ILL, SB); | |
1226 | } | |
1227 | ||
1228 | static void | |
1229 | compile (SIM_DESC sd, int pc) | |
1230 | { | |
1231 | int idx; | |
1232 | ||
1233 | /* Find the next cache entry to use. */ | |
1234 | idx = h8_get_cache_top (sd) + 1; | |
1235 | h8_increment_compiles (sd); | |
1236 | if (idx >= sd->sim_cache_size) | |
c906108c | 1237 | { |
dc5c3759 MS |
1238 | idx = 1; |
1239 | } | |
1240 | h8_set_cache_top (sd, idx); | |
c906108c | 1241 | |
dc5c3759 MS |
1242 | /* Throw away its old meaning. */ |
1243 | h8_set_cache_idx (sd, sd->sim_cache[idx].oldpc, 0); | |
1244 | ||
1245 | /* Set to new address. */ | |
1246 | sd->sim_cache[idx].oldpc = pc; | |
c906108c | 1247 | |
dc5c3759 MS |
1248 | /* Fill in instruction info. */ |
1249 | decode (sd, pc, h8_get_memory_buf (sd) + pc, sd->sim_cache + idx); | |
c906108c | 1250 | |
dc5c3759 MS |
1251 | /* Point to new cache entry. */ |
1252 | h8_set_cache_idx (sd, pc, idx); | |
1253 | } | |
c906108c SS |
1254 | |
1255 | ||
dc5c3759 MS |
1256 | static unsigned char *breg[32]; |
1257 | static unsigned short *wreg[16]; | |
1258 | static unsigned int *lreg[18]; | |
1259 | ||
1260 | #define GET_B_REG(X) *(breg[X]) | |
1261 | #define SET_B_REG(X, Y) (*(breg[X])) = (Y) | |
1262 | #define GET_W_REG(X) *(wreg[X]) | |
1263 | #define SET_W_REG(X, Y) (*(wreg[X])) = (Y) | |
1264 | #define GET_L_REG(X) h8_get_reg (sd, X) | |
1265 | #define SET_L_REG(X, Y) h8_set_reg (sd, X, Y) | |
1266 | ||
1267 | #define GET_MEMORY_L(X) \ | |
1268 | ((X) < memory_size \ | |
1269 | ? ((h8_get_memory (sd, (X)+0) << 24) | (h8_get_memory (sd, (X)+1) << 16) \ | |
1270 | | (h8_get_memory (sd, (X)+2) << 8) | (h8_get_memory (sd, (X)+3) << 0)) \ | |
1271 | : ((h8_get_eightbit (sd, ((X)+0) & 0xff) << 24) \ | |
1272 | | (h8_get_eightbit (sd, ((X)+1) & 0xff) << 16) \ | |
1273 | | (h8_get_eightbit (sd, ((X)+2) & 0xff) << 8) \ | |
1274 | | (h8_get_eightbit (sd, ((X)+3) & 0xff) << 0))) | |
1275 | ||
1276 | #define GET_MEMORY_W(X) \ | |
1277 | ((X) < memory_size \ | |
1278 | ? ((h8_get_memory (sd, (X)+0) << 8) \ | |
1279 | | (h8_get_memory (sd, (X)+1) << 0)) \ | |
1280 | : ((h8_get_eightbit (sd, ((X)+0) & 0xff) << 8) \ | |
1281 | | (h8_get_eightbit (sd, ((X)+1) & 0xff) << 0))) | |
1282 | ||
1283 | ||
1284 | #define GET_MEMORY_B(X) \ | |
1285 | ((X) < memory_size ? (h8_get_memory (sd, (X))) \ | |
1286 | : (h8_get_eightbit (sd, (X) & 0xff))) | |
1287 | ||
1288 | #define SET_MEMORY_L(X, Y) \ | |
1289 | { register unsigned char *_p; register int __y = (Y); \ | |
1290 | _p = ((X) < memory_size ? h8_get_memory_buf (sd) + (X) : \ | |
1291 | h8_get_eightbit_buf (sd) + ((X) & 0xff)); \ | |
1292 | _p[0] = __y >> 24; _p[1] = __y >> 16; \ | |
1293 | _p[2] = __y >> 8; _p[3] = __y >> 0; \ | |
1294 | } | |
c906108c | 1295 | |
dc5c3759 MS |
1296 | #define SET_MEMORY_W(X, Y) \ |
1297 | { register unsigned char *_p; register int __y = (Y); \ | |
1298 | _p = ((X) < memory_size ? h8_get_memory_buf (sd) + (X) : \ | |
1299 | h8_get_eightbit_buf (sd) + ((X) & 0xff)); \ | |
1300 | _p[0] = __y >> 8; _p[1] = __y; \ | |
1301 | } | |
c906108c | 1302 | |
dc5c3759 MS |
1303 | #define SET_MEMORY_B(X, Y) \ |
1304 | ((X) < memory_size ? (h8_set_memory (sd, (X), (Y))) \ | |
1305 | : (h8_set_eightbit (sd, (X) & 0xff, (Y)))) | |
c906108c | 1306 | |
dc5c3759 MS |
1307 | /* Simulate a memory fetch. |
1308 | Return 0 for success, -1 for failure. | |
1309 | */ | |
c906108c | 1310 | |
dc5c3759 MS |
1311 | static int |
1312 | fetch_1 (SIM_DESC sd, ea_type *arg, int *val, int twice) | |
1313 | { | |
1314 | int rn = arg->reg; | |
1315 | int abs = arg->literal; | |
1316 | int r; | |
1317 | int t; | |
1318 | ||
1319 | if (val == NULL) | |
1320 | return -1; /* Paranoia. */ | |
1321 | ||
1322 | switch (arg->type) | |
1323 | { | |
1324 | /* Indexed register plus displacement mode: | |
1325 | ||
1326 | This new family of addressing modes are similar to OP_DISP | |
1327 | (register plus displacement), with two differences: | |
1328 | 1) INDEXB uses only the least significant byte of the register, | |
1329 | INDEXW uses only the least significant word, and | |
1330 | INDEXL uses the entire register (just like OP_DISP). | |
1331 | and | |
1332 | 2) The displacement value in abs is multiplied by two | |
1333 | for SW-sized operations, and by four for SL-size. | |
1334 | ||
1335 | This gives nine possible variations. | |
1336 | */ | |
1337 | ||
1338 | case X (OP_INDEXB, SB): | |
1339 | case X (OP_INDEXB, SW): | |
1340 | case X (OP_INDEXB, SL): | |
1341 | case X (OP_INDEXW, SB): | |
1342 | case X (OP_INDEXW, SW): | |
1343 | case X (OP_INDEXW, SL): | |
1344 | case X (OP_INDEXL, SB): | |
1345 | case X (OP_INDEXL, SW): | |
1346 | case X (OP_INDEXL, SL): | |
1347 | t = GET_L_REG (rn); | |
1348 | switch (OP_KIND (arg->type)) { | |
1349 | case OP_INDEXB: t &= 0xff; break; | |
1350 | case OP_INDEXW: t &= 0xffff; break; | |
1351 | case OP_INDEXL: | |
1352 | default: break; | |
1353 | } | |
1354 | switch (OP_SIZE (arg->type)) { | |
1355 | case SB: | |
1356 | *val = GET_MEMORY_B ((t * 1 + abs) & h8_get_mask (sd)); | |
1357 | break; | |
1358 | case SW: | |
1359 | *val = GET_MEMORY_W ((t * 2 + abs) & h8_get_mask (sd)); | |
1360 | break; | |
1361 | case SL: | |
1362 | *val = GET_MEMORY_L ((t * 4 + abs) & h8_get_mask (sd)); | |
1363 | break; | |
1364 | } | |
1365 | break; | |
1366 | ||
1367 | case X (OP_LOWREG, SB): | |
1368 | *val = GET_L_REG (rn) & 0xff; | |
1369 | break; | |
1370 | case X (OP_LOWREG, SW): | |
1371 | *val = GET_L_REG (rn) & 0xffff; | |
1372 | break; | |
1373 | ||
1374 | case X (OP_REG, SB): /* Register direct, byte. */ | |
1375 | *val = GET_B_REG (rn); | |
1376 | break; | |
1377 | case X (OP_REG, SW): /* Register direct, word. */ | |
1378 | *val = GET_W_REG (rn); | |
1379 | break; | |
1380 | case X (OP_REG, SL): /* Register direct, long. */ | |
1381 | *val = GET_L_REG (rn); | |
1382 | break; | |
1383 | case X (OP_IMM, SB): /* Immediate, byte. */ | |
1384 | case X (OP_IMM, SW): /* Immediate, word. */ | |
1385 | case X (OP_IMM, SL): /* Immediate, long. */ | |
1386 | *val = abs; | |
1387 | break; | |
1388 | case X (OP_POSTINC, SB): /* Register indirect w/post-incr: byte. */ | |
1389 | t = GET_L_REG (rn); | |
3a6c31f9 | 1390 | r = GET_MEMORY_B (t & h8_get_mask (sd)); |
dc5c3759 MS |
1391 | if (!twice) |
1392 | t += 1; | |
dc5c3759 MS |
1393 | SET_L_REG (rn, t); |
1394 | *val = r; | |
1395 | break; | |
1396 | case X (OP_POSTINC, SW): /* Register indirect w/post-incr: word. */ | |
1397 | t = GET_L_REG (rn); | |
3a6c31f9 | 1398 | r = GET_MEMORY_W (t & h8_get_mask (sd)); |
dc5c3759 MS |
1399 | if (!twice) |
1400 | t += 2; | |
dc5c3759 MS |
1401 | SET_L_REG (rn, t); |
1402 | *val = r; | |
1403 | break; | |
1404 | case X (OP_POSTINC, SL): /* Register indirect w/post-incr: long. */ | |
1405 | t = GET_L_REG (rn); | |
3a6c31f9 | 1406 | r = GET_MEMORY_L (t & h8_get_mask (sd)); |
dc5c3759 MS |
1407 | if (!twice) |
1408 | t += 4; | |
dc5c3759 MS |
1409 | SET_L_REG (rn, t); |
1410 | *val = r; | |
1411 | break; | |
1412 | ||
1413 | case X (OP_POSTDEC, SB): /* Register indirect w/post-decr: byte. */ | |
1414 | t = GET_L_REG (rn); | |
3a6c31f9 | 1415 | r = GET_MEMORY_B (t & h8_get_mask (sd)); |
dc5c3759 MS |
1416 | if (!twice) |
1417 | t -= 1; | |
dc5c3759 MS |
1418 | SET_L_REG (rn, t); |
1419 | *val = r; | |
1420 | break; | |
1421 | case X (OP_POSTDEC, SW): /* Register indirect w/post-decr: word. */ | |
1422 | t = GET_L_REG (rn); | |
3a6c31f9 | 1423 | r = GET_MEMORY_W (t & h8_get_mask (sd)); |
dc5c3759 MS |
1424 | if (!twice) |
1425 | t -= 2; | |
dc5c3759 MS |
1426 | SET_L_REG (rn, t); |
1427 | *val = r; | |
1428 | break; | |
1429 | case X (OP_POSTDEC, SL): /* Register indirect w/post-decr: long. */ | |
1430 | t = GET_L_REG (rn); | |
3a6c31f9 | 1431 | r = GET_MEMORY_L (t & h8_get_mask (sd)); |
dc5c3759 MS |
1432 | if (!twice) |
1433 | t -= 4; | |
dc5c3759 MS |
1434 | SET_L_REG (rn, t); |
1435 | *val = r; | |
1436 | break; | |
1437 | ||
1438 | case X (OP_PREDEC, SB): /* Register indirect w/pre-decr: byte. */ | |
1439 | t = GET_L_REG (rn) - 1; | |
dc5c3759 | 1440 | SET_L_REG (rn, t); |
3a6c31f9 | 1441 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1442 | *val = GET_MEMORY_B (t); |
1443 | break; | |
1444 | ||
1445 | case X (OP_PREDEC, SW): /* Register indirect w/pre-decr: word. */ | |
1446 | t = GET_L_REG (rn) - 2; | |
dc5c3759 | 1447 | SET_L_REG (rn, t); |
3a6c31f9 | 1448 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1449 | *val = GET_MEMORY_W (t); |
1450 | break; | |
1451 | ||
1452 | case X (OP_PREDEC, SL): /* Register indirect w/pre-decr: long. */ | |
1453 | t = GET_L_REG (rn) - 4; | |
dc5c3759 | 1454 | SET_L_REG (rn, t); |
3a6c31f9 | 1455 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1456 | *val = GET_MEMORY_L (t); |
1457 | break; | |
1458 | ||
1459 | case X (OP_PREINC, SB): /* Register indirect w/pre-incr: byte. */ | |
1460 | t = GET_L_REG (rn) + 1; | |
dc5c3759 | 1461 | SET_L_REG (rn, t); |
3a6c31f9 | 1462 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1463 | *val = GET_MEMORY_B (t); |
1464 | break; | |
1465 | ||
1466 | case X (OP_PREINC, SW): /* Register indirect w/pre-incr: long. */ | |
1467 | t = GET_L_REG (rn) + 2; | |
dc5c3759 | 1468 | SET_L_REG (rn, t); |
3a6c31f9 | 1469 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1470 | *val = GET_MEMORY_W (t); |
1471 | break; | |
1472 | ||
1473 | case X (OP_PREINC, SL): /* Register indirect w/pre-incr: long. */ | |
1474 | t = GET_L_REG (rn) + 4; | |
dc5c3759 | 1475 | SET_L_REG (rn, t); |
3a6c31f9 | 1476 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1477 | *val = GET_MEMORY_L (t); |
1478 | break; | |
1479 | ||
1480 | case X (OP_DISP, SB): /* Register indirect w/displacement: byte. */ | |
1481 | t = GET_L_REG (rn) + abs; | |
1482 | t &= h8_get_mask (sd); | |
1483 | *val = GET_MEMORY_B (t); | |
1484 | break; | |
1485 | ||
1486 | case X (OP_DISP, SW): /* Register indirect w/displacement: word. */ | |
1487 | t = GET_L_REG (rn) + abs; | |
1488 | t &= h8_get_mask (sd); | |
1489 | *val = GET_MEMORY_W (t); | |
1490 | break; | |
1491 | ||
1492 | case X (OP_DISP, SL): /* Register indirect w/displacement: long. */ | |
1493 | t = GET_L_REG (rn) + abs; | |
1494 | t &= h8_get_mask (sd); | |
1495 | *val =GET_MEMORY_L (t); | |
1496 | break; | |
1497 | ||
1498 | case X (OP_MEM, SL): /* Absolute memory address, long. */ | |
1499 | t = GET_MEMORY_L (abs); | |
1500 | t &= h8_get_mask (sd); | |
1501 | *val = t; | |
1502 | break; | |
1503 | ||
1504 | case X (OP_MEM, SW): /* Absolute memory address, word. */ | |
1505 | t = GET_MEMORY_W (abs); | |
1506 | t &= h8_get_mask (sd); | |
1507 | *val = t; | |
1508 | break; | |
1509 | ||
1510 | case X (OP_PCREL, SB): /* PC relative (for jump, branch etc). */ | |
1511 | case X (OP_PCREL, SW): | |
1512 | case X (OP_PCREL, SL): | |
1513 | case X (OP_PCREL, SN): | |
1514 | *val = abs; | |
1515 | break; | |
1516 | ||
1517 | case X (OP_MEM, SB): /* Why isn't this implemented? */ | |
1518 | default: | |
1519 | sim_engine_set_run_state (sd, sim_stopped, SIGSEGV); | |
1520 | return -1; | |
1521 | } | |
1522 | return 0; /* Success. */ | |
1523 | } | |
1524 | ||
1525 | /* Normal fetch. */ | |
1526 | ||
1527 | static int | |
1528 | fetch (SIM_DESC sd, ea_type *arg, int *val) | |
1529 | { | |
1530 | return fetch_1 (sd, arg, val, 0); | |
1531 | } | |
1532 | ||
1533 | /* Fetch which will be followed by a store to the same location. | |
1534 | The difference being that we don't want to do a post-increment | |
1535 | or post-decrement at this time: we'll do it when we store. */ | |
1536 | ||
1537 | static int | |
1538 | fetch2 (SIM_DESC sd, ea_type *arg, int *val) | |
1539 | { | |
1540 | return fetch_1 (sd, arg, val, 1); | |
1541 | } | |
1542 | ||
1543 | /* Simulate a memory store. | |
1544 | Return 0 for success, -1 for failure. | |
1545 | */ | |
1546 | ||
1547 | static int | |
1548 | store_1 (SIM_DESC sd, ea_type *arg, int n, int twice) | |
1549 | { | |
1550 | int rn = arg->reg; | |
1551 | int abs = arg->literal; | |
1552 | int t; | |
1553 | ||
1554 | switch (arg->type) | |
1555 | { | |
1556 | /* Indexed register plus displacement mode: | |
1557 | ||
1558 | This new family of addressing modes are similar to OP_DISP | |
1559 | (register plus displacement), with two differences: | |
1560 | 1) INDEXB uses only the least significant byte of the register, | |
1561 | INDEXW uses only the least significant word, and | |
1562 | INDEXL uses the entire register (just like OP_DISP). | |
1563 | and | |
1564 | 2) The displacement value in abs is multiplied by two | |
1565 | for SW-sized operations, and by four for SL-size. | |
1566 | ||
1567 | This gives nine possible variations. | |
1568 | */ | |
1569 | ||
1570 | case X (OP_INDEXB, SB): | |
1571 | case X (OP_INDEXB, SW): | |
1572 | case X (OP_INDEXB, SL): | |
1573 | case X (OP_INDEXW, SB): | |
1574 | case X (OP_INDEXW, SW): | |
1575 | case X (OP_INDEXW, SL): | |
1576 | case X (OP_INDEXL, SB): | |
1577 | case X (OP_INDEXL, SW): | |
1578 | case X (OP_INDEXL, SL): | |
1579 | t = GET_L_REG (rn); | |
1580 | switch (OP_KIND (arg->type)) { | |
1581 | case OP_INDEXB: t &= 0xff; break; | |
1582 | case OP_INDEXW: t &= 0xffff; break; | |
1583 | case OP_INDEXL: | |
1584 | default: break; | |
1585 | } | |
1586 | switch (OP_SIZE (arg->type)) { | |
1587 | case SB: | |
1588 | SET_MEMORY_B ((t * 1 + abs) & h8_get_mask (sd), n); | |
1589 | break; | |
1590 | case SW: | |
1591 | SET_MEMORY_W ((t * 2 + abs) & h8_get_mask (sd), n); | |
1592 | break; | |
1593 | case SL: | |
1594 | SET_MEMORY_L ((t * 4 + abs) & h8_get_mask (sd), n); | |
1595 | break; | |
1596 | } | |
1597 | break; | |
1598 | ||
1599 | case X (OP_REG, SB): /* Register direct, byte. */ | |
1600 | SET_B_REG (rn, n); | |
1601 | break; | |
1602 | case X (OP_REG, SW): /* Register direct, word. */ | |
1603 | SET_W_REG (rn, n); | |
1604 | break; | |
1605 | case X (OP_REG, SL): /* Register direct, long. */ | |
1606 | SET_L_REG (rn, n); | |
1607 | break; | |
1608 | ||
1609 | case X (OP_PREDEC, SB): /* Register indirect w/pre-decr, byte. */ | |
1610 | t = GET_L_REG (rn); | |
1611 | if (!twice) | |
1612 | t -= 1; | |
dc5c3759 | 1613 | SET_L_REG (rn, t); |
3a6c31f9 | 1614 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1615 | SET_MEMORY_B (t, n); |
1616 | ||
1617 | break; | |
1618 | case X (OP_PREDEC, SW): /* Register indirect w/pre-decr, word. */ | |
1619 | t = GET_L_REG (rn); | |
1620 | if (!twice) | |
1621 | t -= 2; | |
dc5c3759 | 1622 | SET_L_REG (rn, t); |
3a6c31f9 | 1623 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1624 | SET_MEMORY_W (t, n); |
1625 | break; | |
1626 | ||
1627 | case X (OP_PREDEC, SL): /* Register indirect w/pre-decr, long. */ | |
1628 | t = GET_L_REG (rn); | |
1629 | if (!twice) | |
1630 | t -= 4; | |
dc5c3759 | 1631 | SET_L_REG (rn, t); |
3a6c31f9 | 1632 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1633 | SET_MEMORY_L (t, n); |
1634 | break; | |
1635 | ||
1636 | case X (OP_PREINC, SB): /* Register indirect w/pre-incr, byte. */ | |
1637 | t = GET_L_REG (rn); | |
1638 | if (!twice) | |
1639 | t += 1; | |
dc5c3759 | 1640 | SET_L_REG (rn, t); |
3a6c31f9 | 1641 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1642 | SET_MEMORY_B (t, n); |
1643 | ||
1644 | break; | |
1645 | case X (OP_PREINC, SW): /* Register indirect w/pre-incr, word. */ | |
1646 | t = GET_L_REG (rn); | |
1647 | if (!twice) | |
1648 | t += 2; | |
dc5c3759 | 1649 | SET_L_REG (rn, t); |
3a6c31f9 | 1650 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1651 | SET_MEMORY_W (t, n); |
1652 | break; | |
1653 | ||
1654 | case X (OP_PREINC, SL): /* Register indirect w/pre-incr, long. */ | |
1655 | t = GET_L_REG (rn); | |
1656 | if (!twice) | |
1657 | t += 4; | |
dc5c3759 | 1658 | SET_L_REG (rn, t); |
3a6c31f9 | 1659 | t &= h8_get_mask (sd); |
dc5c3759 MS |
1660 | SET_MEMORY_L (t, n); |
1661 | break; | |
1662 | ||
1663 | case X (OP_POSTDEC, SB): /* Register indirect w/post-decr, byte. */ | |
3a6c31f9 | 1664 | t = GET_L_REG (rn); |
dc5c3759 | 1665 | SET_L_REG (rn, t - 1); |
3a6c31f9 YS |
1666 | t &= h8_get_mask (sd); |
1667 | SET_MEMORY_B (t, n); | |
dc5c3759 MS |
1668 | break; |
1669 | ||
1670 | case X (OP_POSTDEC, SW): /* Register indirect w/post-decr, word. */ | |
3a6c31f9 | 1671 | t = GET_L_REG (rn); |
dc5c3759 | 1672 | SET_L_REG (rn, t - 2); |
3a6c31f9 YS |
1673 | t &= h8_get_mask (sd); |
1674 | SET_MEMORY_W (t, n); | |
dc5c3759 MS |
1675 | break; |
1676 | ||
1677 | case X (OP_POSTDEC, SL): /* Register indirect w/post-decr, long. */ | |
3a6c31f9 | 1678 | t = GET_L_REG (rn); |
dc5c3759 | 1679 | SET_L_REG (rn, t - 4); |
3a6c31f9 YS |
1680 | t &= h8_get_mask (sd); |
1681 | SET_MEMORY_L (t, n); | |
dc5c3759 MS |
1682 | break; |
1683 | ||
1684 | case X (OP_POSTINC, SB): /* Register indirect w/post-incr, byte. */ | |
3a6c31f9 | 1685 | t = GET_L_REG (rn); |
dc5c3759 | 1686 | SET_L_REG (rn, t + 1); |
3a6c31f9 YS |
1687 | t &= h8_get_mask (sd); |
1688 | SET_MEMORY_B (t, n); | |
dc5c3759 MS |
1689 | break; |
1690 | ||
1691 | case X (OP_POSTINC, SW): /* Register indirect w/post-incr, word. */ | |
3a6c31f9 | 1692 | t = GET_L_REG (rn); |
dc5c3759 | 1693 | SET_L_REG (rn, t + 2); |
3a6c31f9 YS |
1694 | t &= h8_get_mask (sd); |
1695 | SET_MEMORY_W (t, n); | |
dc5c3759 MS |
1696 | break; |
1697 | ||
1698 | case X (OP_POSTINC, SL): /* Register indirect w/post-incr, long. */ | |
3a6c31f9 | 1699 | t = GET_L_REG (rn); |
dc5c3759 | 1700 | SET_L_REG (rn, t + 4); |
3a6c31f9 YS |
1701 | t &= h8_get_mask (sd); |
1702 | SET_MEMORY_L (t, n); | |
dc5c3759 MS |
1703 | break; |
1704 | ||
1705 | case X (OP_DISP, SB): /* Register indirect w/displacement, byte. */ | |
1706 | t = GET_L_REG (rn) + abs; | |
1707 | t &= h8_get_mask (sd); | |
1708 | SET_MEMORY_B (t, n); | |
1709 | break; | |
1710 | ||
1711 | case X (OP_DISP, SW): /* Register indirect w/displacement, word. */ | |
1712 | t = GET_L_REG (rn) + abs; | |
1713 | t &= h8_get_mask (sd); | |
1714 | SET_MEMORY_W (t, n); | |
1715 | break; | |
1716 | ||
1717 | case X (OP_DISP, SL): /* Register indirect w/displacement, long. */ | |
1718 | t = GET_L_REG (rn) + abs; | |
1719 | t &= h8_get_mask (sd); | |
1720 | SET_MEMORY_L (t, n); | |
1721 | break; | |
1722 | ||
1723 | ||
1724 | case X (OP_MEM, SB): /* Why isn't this implemented? */ | |
1725 | case X (OP_MEM, SW): /* Why isn't this implemented? */ | |
1726 | case X (OP_MEM, SL): /* Why isn't this implemented? */ | |
1727 | default: | |
1728 | sim_engine_set_run_state (sd, sim_stopped, SIGSEGV); | |
1729 | return -1; | |
1730 | } | |
1731 | return 0; | |
1732 | } | |
1733 | ||
1734 | /* Normal store. */ | |
1735 | ||
1736 | static int | |
1737 | store (SIM_DESC sd, ea_type *arg, int n) | |
1738 | { | |
1739 | return store_1 (sd, arg, n, 0); | |
1740 | } | |
1741 | ||
1742 | /* Store which follows a fetch from the same location. | |
1743 | The difference being that we don't want to do a pre-increment | |
1744 | or pre-decrement at this time: it was already done when we fetched. */ | |
1745 | ||
1746 | static int | |
1747 | store2 (SIM_DESC sd, ea_type *arg, int n) | |
1748 | { | |
1749 | return store_1 (sd, arg, n, 1); | |
1750 | } | |
1751 | ||
1752 | static union | |
1753 | { | |
1754 | short int i; | |
1755 | struct | |
1756 | { | |
1757 | char low; | |
1758 | char high; | |
1759 | } | |
1760 | u; | |
1761 | } littleendian; | |
1762 | ||
1763 | /* Flag to be set whenever a new SIM_DESC object is created. */ | |
1764 | static int init_pointers_needed = 1; | |
1765 | ||
1766 | static void | |
1767 | init_pointers (SIM_DESC sd) | |
1768 | { | |
1769 | if (init_pointers_needed) | |
1770 | { | |
1771 | int i; | |
1772 | ||
1773 | littleendian.i = 1; | |
1774 | ||
59768597 | 1775 | if (h8300smode && !h8300_normal_mode) |
dc5c3759 | 1776 | memory_size = H8300S_MSIZE; |
59768597 | 1777 | else if (h8300hmode && !h8300_normal_mode) |
dc5c3759 MS |
1778 | memory_size = H8300H_MSIZE; |
1779 | else | |
1780 | memory_size = H8300_MSIZE; | |
1781 | /* `msize' must be a power of two. */ | |
1782 | if ((memory_size & (memory_size - 1)) != 0) | |
1783 | { | |
1784 | (*sim_callback->printf_filtered) | |
1785 | (sim_callback, | |
1786 | "init_pointers: bad memory size %d, defaulting to %d.\n", | |
1787 | memory_size, memory_size = H8300S_MSIZE); | |
1788 | } | |
1789 | ||
1790 | if (h8_get_memory_buf (sd)) | |
1791 | free (h8_get_memory_buf (sd)); | |
1792 | if (h8_get_cache_idx_buf (sd)) | |
1793 | free (h8_get_cache_idx_buf (sd)); | |
1794 | if (h8_get_eightbit_buf (sd)) | |
1795 | free (h8_get_eightbit_buf (sd)); | |
1796 | ||
1797 | h8_set_memory_buf (sd, (unsigned char *) | |
1798 | calloc (sizeof (char), memory_size)); | |
1799 | h8_set_cache_idx_buf (sd, (unsigned short *) | |
1800 | calloc (sizeof (short), memory_size)); | |
1801 | sd->memory_size = memory_size; | |
1802 | h8_set_eightbit_buf (sd, (unsigned char *) calloc (sizeof (char), 256)); | |
1803 | ||
1804 | h8_set_mask (sd, memory_size - 1); | |
1805 | ||
1806 | memset (h8_get_reg_buf (sd), 0, sizeof (((STATE_CPU (sd, 0))->regs))); | |
1807 | ||
1808 | for (i = 0; i < 8; i++) | |
1809 | { | |
1810 | /* FIXME: rewrite using local buffer. */ | |
1811 | unsigned char *p = (unsigned char *) (h8_get_reg_buf (sd) + i); | |
1812 | unsigned char *e = (unsigned char *) (h8_get_reg_buf (sd) + i + 1); | |
1813 | unsigned short *q = (unsigned short *) (h8_get_reg_buf (sd) + i); | |
1814 | unsigned short *u = (unsigned short *) (h8_get_reg_buf (sd) + i + 1); | |
1815 | h8_set_reg (sd, i, 0x00112233); | |
1816 | ||
1817 | while (p < e) | |
1818 | { | |
1819 | if (*p == 0x22) | |
1820 | breg[i] = p; | |
1821 | if (*p == 0x33) | |
1822 | breg[i + 8] = p; | |
1823 | if (*p == 0x11) | |
1824 | breg[i + 16] = p; | |
1825 | if (*p == 0x00) | |
1826 | breg[i + 24] = p; | |
1827 | p++; | |
1828 | } | |
1829 | ||
1830 | wreg[i] = wreg[i + 8] = 0; | |
1831 | while (q < u) | |
1832 | { | |
1833 | if (*q == 0x2233) | |
1834 | { | |
1835 | wreg[i] = q; | |
1836 | } | |
1837 | if (*q == 0x0011) | |
1838 | { | |
1839 | wreg[i + 8] = q; | |
1840 | } | |
1841 | q++; | |
1842 | } | |
1843 | ||
1844 | if (wreg[i] == 0 || wreg[i + 8] == 0) | |
1845 | (*sim_callback->printf_filtered) (sim_callback, | |
1846 | "init_pointers: internal error.\n"); | |
1847 | ||
1848 | h8_set_reg (sd, i, 0); | |
1849 | lreg[i] = h8_get_reg_buf (sd) + i; | |
1850 | } | |
1851 | ||
1852 | /* Note: sim uses pseudo-register ZERO as a zero register. */ | |
1853 | lreg[ZERO_REGNUM] = h8_get_reg_buf (sd) + ZERO_REGNUM; | |
1854 | init_pointers_needed = 0; | |
1855 | ||
1856 | /* Initialize the seg registers. */ | |
1857 | if (!sd->sim_cache) | |
1858 | set_simcache_size (sd, CSIZE); | |
1859 | } | |
1860 | } | |
1861 | ||
dc5c3759 MS |
1862 | int |
1863 | sim_stop (SIM_DESC sd) | |
1864 | { | |
1865 | /* FIXME: use a real signal value. */ | |
1866 | sim_engine_set_run_state (sd, sim_stopped, SIGINT); | |
1867 | return 1; | |
1868 | } | |
1869 | ||
1870 | #define OBITOP(name, f, s, op) \ | |
1871 | case O (name, SB): \ | |
1872 | { \ | |
1873 | int m, tmp; \ | |
1874 | \ | |
1875 | if (f) \ | |
1876 | if (fetch (sd, &code->dst, &ea)) \ | |
1877 | goto end; \ | |
1878 | if (fetch (sd, &code->src, &tmp)) \ | |
1879 | goto end; \ | |
b86015ea | 1880 | m = 1 << (tmp & 7); \ |
dc5c3759 MS |
1881 | op; \ |
1882 | if (s) \ | |
1883 | if (store (sd, &code->dst,ea)) \ | |
1884 | goto end; \ | |
1885 | goto next; \ | |
1886 | } | |
1887 | ||
1888 | void | |
1889 | sim_resume (SIM_DESC sd, int step, int siggnal) | |
1890 | { | |
1891 | static int init1; | |
1892 | int cycles = 0; | |
1893 | int insts = 0; | |
1894 | int tick_start = get_now (); | |
dc5c3759 MS |
1895 | int poll_count = 0; |
1896 | int res; | |
1897 | int tmp; | |
1898 | int rd; | |
1899 | int ea; | |
1900 | int bit; | |
1901 | int pc; | |
1902 | int c, nz, v, n, u, h, ui, intMaskBit; | |
1903 | int trace, intMask; | |
1904 | int oldmask; | |
1905 | enum sim_stop reason; | |
1906 | int sigrc; | |
1907 | ||
1908 | init_pointers (sd); | |
1909 | ||
dc5c3759 MS |
1910 | if (step) |
1911 | { | |
1912 | sim_engine_set_run_state (sd, sim_stopped, SIGTRAP); | |
1913 | } | |
1914 | else | |
1915 | { | |
1916 | sim_engine_set_run_state (sd, sim_running, 0); | |
1917 | } | |
1918 | ||
1919 | pc = h8_get_pc (sd); | |
1920 | ||
1921 | /* The PC should never be odd. */ | |
1922 | if (pc & 0x1) | |
1923 | { | |
1924 | sim_engine_set_run_state (sd, sim_stopped, SIGBUS); | |
1925 | return; | |
1926 | } | |
1927 | ||
1928 | /* Get Status Register (flags). */ | |
9f70f8ec | 1929 | GETSR (sd); |
dc5c3759 MS |
1930 | |
1931 | if (h8300smode) /* Get exr. */ | |
1932 | { | |
1933 | trace = (h8_get_exr (sd) >> 7) & 1; | |
1934 | intMask = h8_get_exr (sd) & 7; | |
1935 | } | |
1936 | ||
1937 | oldmask = h8_get_mask (sd); | |
59768597 | 1938 | if (!h8300hmode || h8300_normal_mode) |
dc5c3759 MS |
1939 | h8_set_mask (sd, 0xffff); |
1940 | do | |
1941 | { | |
1942 | unsigned short cidx; | |
1943 | decoded_inst *code; | |
1944 | ||
1945 | top: | |
1946 | cidx = h8_get_cache_idx (sd, pc); | |
1947 | if (cidx == (unsigned short) -1 || | |
1948 | cidx >= sd->sim_cache_size) | |
1949 | goto illegal; | |
1950 | ||
1951 | code = sd->sim_cache + cidx; | |
1952 | ||
1953 | #if ADEBUG | |
1954 | if (debug) | |
1955 | { | |
1956 | printf ("%x %d %s\n", pc, code->opcode, | |
1957 | code->op ? code->op->name : "**"); | |
1958 | } | |
1959 | h8_increment_stats (sd, code->opcode); | |
1960 | #endif | |
1961 | ||
1962 | if (code->opcode) | |
1963 | { | |
1964 | cycles += code->cycles; | |
1965 | insts++; | |
1966 | } | |
1967 | ||
1968 | switch (code->opcode) | |
1969 | { | |
1970 | case 0: | |
1971 | /* | |
1972 | * This opcode is a fake for when we get to an | |
1973 | * instruction which hasnt been compiled | |
1974 | */ | |
1975 | compile (sd, pc); | |
1976 | goto top; | |
1977 | break; | |
1978 | ||
1979 | case O (O_MOVAB, SL): | |
1980 | case O (O_MOVAW, SL): | |
1981 | case O (O_MOVAL, SL): | |
1982 | /* 1) Evaluate 2nd argument (dst). | |
1983 | 2) Mask / zero extend according to whether 1st argument (src) | |
1984 | is INDEXB, INDEXW, or INDEXL. | |
1985 | 3) Left-shift the result by 0, 1 or 2, according to size of mova | |
1986 | (mova/b, mova/w, mova/l). | |
1987 | 4) Add literal value of 1st argument (src). | |
1988 | 5) Store result in 3rd argument (op3). | |
f408565c MS |
1989 | */ |
1990 | ||
1991 | /* Alas, since this is the only instruction with 3 arguments, | |
1992 | decode doesn't handle them very well. Some fix-up is required. | |
1993 | ||
1994 | a) The size of dst is determined by whether src is | |
1995 | INDEXB or INDEXW. */ | |
dc5c3759 | 1996 | |
f408565c MS |
1997 | if (OP_KIND (code->src.type) == OP_INDEXB) |
1998 | code->dst.type = X (OP_KIND (code->dst.type), SB); | |
1999 | else if (OP_KIND (code->src.type) == OP_INDEXW) | |
2000 | code->dst.type = X (OP_KIND (code->dst.type), SW); | |
2001 | ||
2002 | /* b) If op3 == null, then this is the short form of the insn. | |
2003 | Dst is the dispreg of src, and op3 is the 32-bit form | |
2004 | of the same register. | |
dc5c3759 | 2005 | */ |
f408565c MS |
2006 | |
2007 | if (code->op3.type == 0) | |
2008 | { | |
2009 | /* Short form: src == INDEXB/INDEXW, dst == op3 == 0. | |
2010 | We get to compose dst and op3 as follows: | |
2011 | ||
2012 | op3 is a 32-bit register, ID == src.reg. | |
2013 | dst is the same register, but 8 or 16 bits | |
2014 | depending on whether src is INDEXB or INDEXW. | |
2015 | */ | |
2016 | ||
2017 | code->op3.type = X (OP_REG, SL); | |
2018 | code->op3.reg = code->src.reg; | |
2019 | code->op3.literal = 0; | |
2020 | ||
2021 | if (OP_KIND (code->src.type) == OP_INDEXB) | |
e073c474 AO |
2022 | { |
2023 | code->dst.type = X (OP_REG, SB); | |
2024 | code->dst.reg = code->op3.reg + 8; | |
2025 | } | |
f408565c MS |
2026 | else |
2027 | code->dst.type = X (OP_REG, SW); | |
2028 | } | |
2029 | ||
dc5c3759 MS |
2030 | if (fetch (sd, &code->dst, &ea)) |
2031 | goto end; | |
2032 | ||
2033 | switch (OP_KIND (code->src.type)) { | |
2034 | case OP_INDEXB: ea = ea & 0xff; break; | |
2035 | case OP_INDEXW: ea = ea & 0xffff; break; | |
2036 | case OP_INDEXL: break; | |
2037 | default: goto illegal; | |
2038 | } | |
2039 | ||
2040 | switch (code->opcode) { | |
2041 | case O (O_MOVAB, SL): break; | |
2042 | case O (O_MOVAW, SL): ea = ea << 1; break; | |
2043 | case O (O_MOVAL, SL): ea = ea << 2; break; | |
2044 | default: goto illegal; | |
2045 | } | |
2046 | ||
2047 | ea = ea + code->src.literal; | |
2048 | ||
2049 | if (store (sd, &code->op3, ea)) | |
2050 | goto end; | |
2051 | ||
2052 | goto next; | |
2053 | ||
2054 | case O (O_SUBX, SB): /* subx, extended sub */ | |
2055 | if (fetch2 (sd, &code->dst, &rd)) | |
2056 | goto end; | |
2057 | if (fetch (sd, &code->src, &ea)) | |
2058 | goto end; | |
2059 | ea = -(ea + C); | |
2060 | res = rd + ea; | |
2061 | goto alu8; | |
2062 | ||
2063 | case O (O_SUBX, SW): /* subx, extended sub */ | |
2064 | if (fetch2 (sd, &code->dst, &rd)) | |
2065 | goto end; | |
2066 | if (fetch (sd, &code->src, &ea)) | |
2067 | goto end; | |
2068 | ea = -(ea + C); | |
2069 | res = rd + ea; | |
2070 | goto alu16; | |
2071 | ||
2072 | case O (O_SUBX, SL): /* subx, extended sub */ | |
2073 | if (fetch2 (sd, &code->dst, &rd)) | |
2074 | goto end; | |
2075 | if (fetch (sd, &code->src, &ea)) | |
2076 | goto end; | |
2077 | ea = -(ea + C); | |
2078 | res = rd + ea; | |
2079 | goto alu32; | |
2080 | ||
2081 | case O (O_ADDX, SB): /* addx, extended add */ | |
2082 | if (fetch2 (sd, &code->dst, &rd)) | |
2083 | goto end; | |
2084 | if (fetch (sd, &code->src, &ea)) | |
2085 | goto end; | |
2086 | ea = ea + C; | |
2087 | res = rd + ea; | |
2088 | goto alu8; | |
2089 | ||
2090 | case O (O_ADDX, SW): /* addx, extended add */ | |
2091 | if (fetch2 (sd, &code->dst, &rd)) | |
2092 | goto end; | |
2093 | if (fetch (sd, &code->src, &ea)) | |
2094 | goto end; | |
2095 | ea = ea + C; | |
2096 | res = rd + ea; | |
2097 | goto alu16; | |
2098 | ||
2099 | case O (O_ADDX, SL): /* addx, extended add */ | |
2100 | if (fetch2 (sd, &code->dst, &rd)) | |
2101 | goto end; | |
2102 | if (fetch (sd, &code->src, &ea)) | |
2103 | goto end; | |
2104 | ea = ea + C; | |
2105 | res = rd + ea; | |
2106 | goto alu32; | |
2107 | ||
2108 | case O (O_SUB, SB): /* sub.b */ | |
2109 | /* Fetch rd and ea. */ | |
2110 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2111 | goto end; | |
2112 | ea = -ea; | |
2113 | res = rd + ea; | |
2114 | goto alu8; | |
2115 | ||
2116 | case O (O_SUB, SW): /* sub.w */ | |
2117 | /* Fetch rd and ea. */ | |
2118 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2119 | goto end; | |
2120 | ea = -ea; | |
2121 | res = rd + ea; | |
2122 | goto alu16; | |
2123 | ||
2124 | case O (O_SUB, SL): /* sub.l */ | |
2125 | /* Fetch rd and ea. */ | |
2126 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2127 | goto end; | |
2128 | ea = -ea; | |
2129 | res = rd + ea; | |
2130 | goto alu32; | |
2131 | ||
2132 | case O (O_NEG, SB): /* neg.b */ | |
2133 | /* Fetch ea. */ | |
2134 | if (fetch2 (sd, &code->src, &ea)) | |
2135 | goto end; | |
2136 | ea = -ea; | |
2137 | rd = 0; | |
2138 | res = rd + ea; | |
2139 | goto alu8; | |
2140 | ||
2141 | case O (O_NEG, SW): /* neg.w */ | |
2142 | /* Fetch ea. */ | |
2143 | if (fetch2 (sd, &code->src, &ea)) | |
2144 | goto end; | |
2145 | ea = -ea; | |
2146 | rd = 0; | |
2147 | res = rd + ea; | |
2148 | goto alu16; | |
2149 | ||
2150 | case O (O_NEG, SL): /* neg.l */ | |
2151 | /* Fetch ea. */ | |
2152 | if (fetch2 (sd, &code->src, &ea)) | |
2153 | goto end; | |
2154 | ea = -ea; | |
2155 | rd = 0; | |
2156 | res = rd + ea; | |
2157 | goto alu32; | |
2158 | ||
2159 | case O (O_ADD, SB): /* add.b */ | |
2160 | if (fetch2 (sd, &code->dst, &rd)) | |
2161 | goto end; | |
2162 | if (fetch (sd, &code->src, &ea)) | |
2163 | goto end; | |
2164 | res = rd + ea; | |
2165 | goto alu8; | |
2166 | ||
2167 | case O (O_ADD, SW): /* add.w */ | |
2168 | if (fetch2 (sd, &code->dst, &rd)) | |
2169 | goto end; | |
2170 | if (fetch (sd, &code->src, &ea)) | |
2171 | goto end; | |
2172 | res = rd + ea; | |
2173 | goto alu16; | |
2174 | ||
2175 | case O (O_ADD, SL): /* add.l */ | |
2176 | if (fetch2 (sd, &code->dst, &rd)) | |
2177 | goto end; | |
2178 | if (fetch (sd, &code->src, &ea)) | |
2179 | goto end; | |
2180 | res = rd + ea; | |
2181 | goto alu32; | |
2182 | ||
2183 | case O (O_AND, SB): /* and.b */ | |
2184 | /* Fetch rd and ea. */ | |
2185 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2186 | goto end; | |
2187 | res = rd & ea; | |
2188 | goto log8; | |
2189 | ||
2190 | case O (O_AND, SW): /* and.w */ | |
2191 | /* Fetch rd and ea. */ | |
2192 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2193 | goto end; | |
2194 | res = rd & ea; | |
2195 | goto log16; | |
2196 | ||
2197 | case O (O_AND, SL): /* and.l */ | |
2198 | /* Fetch rd and ea. */ | |
2199 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2200 | goto end; | |
2201 | res = rd & ea; | |
2202 | goto log32; | |
2203 | ||
2204 | case O (O_OR, SB): /* or.b */ | |
2205 | /* Fetch rd and ea. */ | |
2206 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2207 | goto end; | |
2208 | res = rd | ea; | |
2209 | goto log8; | |
2210 | ||
2211 | case O (O_OR, SW): /* or.w */ | |
2212 | /* Fetch rd and ea. */ | |
2213 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2214 | goto end; | |
2215 | res = rd | ea; | |
2216 | goto log16; | |
2217 | ||
2218 | case O (O_OR, SL): /* or.l */ | |
2219 | /* Fetch rd and ea. */ | |
2220 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2221 | goto end; | |
2222 | res = rd | ea; | |
2223 | goto log32; | |
2224 | ||
2225 | case O (O_XOR, SB): /* xor.b */ | |
2226 | /* Fetch rd and ea. */ | |
2227 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2228 | goto end; | |
2229 | res = rd ^ ea; | |
2230 | goto log8; | |
2231 | ||
2232 | case O (O_XOR, SW): /* xor.w */ | |
2233 | /* Fetch rd and ea. */ | |
2234 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2235 | goto end; | |
2236 | res = rd ^ ea; | |
2237 | goto log16; | |
2238 | ||
2239 | case O (O_XOR, SL): /* xor.l */ | |
2240 | /* Fetch rd and ea. */ | |
2241 | if (fetch (sd, &code->src, &ea) || fetch2 (sd, &code->dst, &rd)) | |
2242 | goto end; | |
2243 | res = rd ^ ea; | |
2244 | goto log32; | |
2245 | ||
2246 | case O (O_MOV, SB): | |
2247 | if (fetch (sd, &code->src, &res)) | |
2248 | goto end; | |
2249 | if (store (sd, &code->dst, res)) | |
2250 | goto end; | |
2251 | goto just_flags_log8; | |
2252 | case O (O_MOV, SW): | |
2253 | if (fetch (sd, &code->src, &res)) | |
2254 | goto end; | |
2255 | if (store (sd, &code->dst, res)) | |
2256 | goto end; | |
2257 | goto just_flags_log16; | |
2258 | case O (O_MOV, SL): | |
2259 | if (fetch (sd, &code->src, &res)) | |
2260 | goto end; | |
2261 | if (store (sd, &code->dst, res)) | |
2262 | goto end; | |
2263 | goto just_flags_log32; | |
2264 | ||
9f70f8ec | 2265 | case O (O_MOVMD, SB): /* movmd.b */ |
dc5c3759 MS |
2266 | ea = GET_W_REG (4); |
2267 | if (ea == 0) | |
2268 | ea = 0x10000; | |
2269 | ||
2270 | while (ea--) | |
2271 | { | |
2272 | rd = GET_MEMORY_B (GET_L_REG (5)); | |
2273 | SET_MEMORY_B (GET_L_REG (6), rd); | |
2274 | SET_L_REG (5, GET_L_REG (5) + 1); | |
2275 | SET_L_REG (6, GET_L_REG (6) + 1); | |
2276 | SET_W_REG (4, ea); | |
2277 | } | |
2278 | goto next; | |
2279 | ||
9f70f8ec | 2280 | case O (O_MOVMD, SW): /* movmd.w */ |
dc5c3759 MS |
2281 | ea = GET_W_REG (4); |
2282 | if (ea == 0) | |
2283 | ea = 0x10000; | |
2284 | ||
2285 | while (ea--) | |
2286 | { | |
2287 | rd = GET_MEMORY_W (GET_L_REG (5)); | |
2288 | SET_MEMORY_W (GET_L_REG (6), rd); | |
2289 | SET_L_REG (5, GET_L_REG (5) + 2); | |
2290 | SET_L_REG (6, GET_L_REG (6) + 2); | |
2291 | SET_W_REG (4, ea); | |
2292 | } | |
2293 | goto next; | |
2294 | ||
9f70f8ec | 2295 | case O (O_MOVMD, SL): /* movmd.l */ |
dc5c3759 MS |
2296 | ea = GET_W_REG (4); |
2297 | if (ea == 0) | |
2298 | ea = 0x10000; | |
2299 | ||
2300 | while (ea--) | |
2301 | { | |
2302 | rd = GET_MEMORY_L (GET_L_REG (5)); | |
2303 | SET_MEMORY_L (GET_L_REG (6), rd); | |
2304 | SET_L_REG (5, GET_L_REG (5) + 4); | |
2305 | SET_L_REG (6, GET_L_REG (6) + 4); | |
2306 | SET_W_REG (4, ea); | |
2307 | } | |
2308 | goto next; | |
2309 | ||
2310 | case O (O_MOVSD, SB): /* movsd.b */ | |
2311 | /* This instruction implements strncpy, with a conditional branch. | |
2312 | r4 contains n, r5 contains src, and r6 contains dst. | |
2313 | The 16-bit displacement operand is added to the pc | |
2314 | if and only if the end of string is reached before | |
2315 | n bytes are transferred. */ | |
2316 | ||
2317 | ea = GET_L_REG (4) & 0xffff; | |
2318 | if (ea == 0) | |
2319 | ea = 0x10000; | |
2320 | ||
2321 | while (ea--) | |
2322 | { | |
2323 | rd = GET_MEMORY_B (GET_L_REG (5)); | |
2324 | SET_MEMORY_B (GET_L_REG (6), rd); | |
2325 | SET_L_REG (5, GET_L_REG (5) + 1); | |
2326 | SET_L_REG (6, GET_L_REG (6) + 1); | |
2327 | SET_W_REG (4, ea); | |
2328 | if (rd == 0) | |
2329 | goto condtrue; | |
2330 | } | |
2331 | goto next; | |
2332 | ||
2333 | case O (O_EEPMOV, SB): /* eepmov.b */ | |
2334 | case O (O_EEPMOV, SW): /* eepmov.w */ | |
2335 | if (h8300hmode || h8300smode) | |
2336 | { | |
2337 | register unsigned char *_src, *_dst; | |
2338 | unsigned int count = ((code->opcode == O (O_EEPMOV, SW)) | |
2339 | ? h8_get_reg (sd, R4_REGNUM) & 0xffff | |
2340 | : h8_get_reg (sd, R4_REGNUM) & 0xff); | |
2341 | ||
2342 | _src = (h8_get_reg (sd, R5_REGNUM) < memory_size | |
2343 | ? h8_get_memory_buf (sd) + h8_get_reg (sd, R5_REGNUM) | |
2344 | : h8_get_eightbit_buf (sd) + | |
2345 | (h8_get_reg (sd, R5_REGNUM) & 0xff)); | |
2346 | if ((_src + count) >= (h8_get_memory_buf (sd) + memory_size)) | |
2347 | { | |
2348 | if ((_src + count) >= (h8_get_eightbit_buf (sd) + 0x100)) | |
2349 | goto illegal; | |
2350 | } | |
2351 | _dst = (h8_get_reg (sd, R6_REGNUM) < memory_size | |
2352 | ? h8_get_memory_buf (sd) + h8_get_reg (sd, R6_REGNUM) | |
2353 | : h8_get_eightbit_buf (sd) + | |
2354 | (h8_get_reg (sd, R6_REGNUM) & 0xff)); | |
2355 | ||
2356 | if ((_dst + count) >= (h8_get_memory_buf (sd) + memory_size)) | |
2357 | { | |
2358 | if ((_dst + count) >= (h8_get_eightbit_buf (sd) + 0x100)) | |
2359 | goto illegal; | |
2360 | } | |
2361 | memcpy (_dst, _src, count); | |
2362 | ||
2363 | h8_set_reg (sd, R5_REGNUM, h8_get_reg (sd, R5_REGNUM) + count); | |
2364 | h8_set_reg (sd, R6_REGNUM, h8_get_reg (sd, R6_REGNUM) + count); | |
2365 | h8_set_reg (sd, R4_REGNUM, h8_get_reg (sd, R4_REGNUM) & | |
2366 | ((code->opcode == O (O_EEPMOV, SW)) | |
2367 | ? (~0xffff) : (~0xff))); | |
2368 | cycles += 2 * count; | |
2369 | goto next; | |
2370 | } | |
2371 | goto illegal; | |
2372 | ||
2373 | case O (O_ADDS, SL): /* adds (.l) */ | |
2374 | /* FIXME fetch. | |
2375 | * This insn only uses register operands, but still | |
2376 | * it would be cleaner to use fetch and store... */ | |
2377 | SET_L_REG (code->dst.reg, | |
2378 | GET_L_REG (code->dst.reg) | |
2379 | + code->src.literal); | |
2380 | ||
2381 | goto next; | |
2382 | ||
2383 | case O (O_SUBS, SL): /* subs (.l) */ | |
2384 | /* FIXME fetch. | |
2385 | * This insn only uses register operands, but still | |
2386 | * it would be cleaner to use fetch and store... */ | |
2387 | SET_L_REG (code->dst.reg, | |
2388 | GET_L_REG (code->dst.reg) | |
2389 | - code->src.literal); | |
2390 | goto next; | |
2391 | ||
2392 | case O (O_CMP, SB): /* cmp.b */ | |
2393 | if (fetch (sd, &code->dst, &rd)) | |
2394 | goto end; | |
2395 | if (fetch (sd, &code->src, &ea)) | |
2396 | goto end; | |
2397 | ea = -ea; | |
2398 | res = rd + ea; | |
2399 | goto just_flags_alu8; | |
2400 | ||
2401 | case O (O_CMP, SW): /* cmp.w */ | |
2402 | if (fetch (sd, &code->dst, &rd)) | |
2403 | goto end; | |
2404 | if (fetch (sd, &code->src, &ea)) | |
2405 | goto end; | |
2406 | ea = -ea; | |
2407 | res = rd + ea; | |
2408 | goto just_flags_alu16; | |
2409 | ||
2410 | case O (O_CMP, SL): /* cmp.l */ | |
2411 | if (fetch (sd, &code->dst, &rd)) | |
2412 | goto end; | |
2413 | if (fetch (sd, &code->src, &ea)) | |
2414 | goto end; | |
2415 | ea = -ea; | |
2416 | res = rd + ea; | |
2417 | goto just_flags_alu32; | |
2418 | ||
2419 | case O (O_DEC, SB): /* dec.b */ | |
2420 | /* FIXME fetch. | |
2421 | * This insn only uses register operands, but still | |
2422 | * it would be cleaner to use fetch and store... */ | |
2423 | rd = GET_B_REG (code->src.reg); | |
2424 | ea = -1; | |
2425 | res = rd + ea; | |
2426 | SET_B_REG (code->src.reg, res); | |
2427 | goto just_flags_inc8; | |
2428 | ||
2429 | case O (O_DEC, SW): /* dec.w */ | |
2430 | /* FIXME fetch. | |
2431 | * This insn only uses register operands, but still | |
2432 | * it would be cleaner to use fetch and store... */ | |
2433 | rd = GET_W_REG (code->dst.reg); | |
2434 | ea = -code->src.literal; | |
2435 | res = rd + ea; | |
2436 | SET_W_REG (code->dst.reg, res); | |
2437 | goto just_flags_inc16; | |
2438 | ||
2439 | case O (O_DEC, SL): /* dec.l */ | |
2440 | /* FIXME fetch. | |
2441 | * This insn only uses register operands, but still | |
2442 | * it would be cleaner to use fetch and store... */ | |
2443 | rd = GET_L_REG (code->dst.reg); | |
2444 | ea = -code->src.literal; | |
2445 | res = rd + ea; | |
2446 | SET_L_REG (code->dst.reg, res); | |
2447 | goto just_flags_inc32; | |
2448 | ||
2449 | case O (O_INC, SB): /* inc.b */ | |
2450 | /* FIXME fetch. | |
2451 | * This insn only uses register operands, but still | |
2452 | * it would be cleaner to use fetch and store... */ | |
2453 | rd = GET_B_REG (code->src.reg); | |
2454 | ea = 1; | |
2455 | res = rd + ea; | |
2456 | SET_B_REG (code->src.reg, res); | |
2457 | goto just_flags_inc8; | |
2458 | ||
2459 | case O (O_INC, SW): /* inc.w */ | |
2460 | /* FIXME fetch. | |
2461 | * This insn only uses register operands, but still | |
2462 | * it would be cleaner to use fetch and store... */ | |
2463 | rd = GET_W_REG (code->dst.reg); | |
2464 | ea = code->src.literal; | |
2465 | res = rd + ea; | |
2466 | SET_W_REG (code->dst.reg, res); | |
2467 | goto just_flags_inc16; | |
2468 | ||
2469 | case O (O_INC, SL): /* inc.l */ | |
2470 | /* FIXME fetch. | |
2471 | * This insn only uses register operands, but still | |
2472 | * it would be cleaner to use fetch and store... */ | |
2473 | rd = GET_L_REG (code->dst.reg); | |
2474 | ea = code->src.literal; | |
2475 | res = rd + ea; | |
2476 | SET_L_REG (code->dst.reg, res); | |
2477 | goto just_flags_inc32; | |
2478 | ||
2479 | case O (O_LDC, SB): /* ldc.b */ | |
2480 | if (fetch (sd, &code->src, &res)) | |
2481 | goto end; | |
2482 | goto setc; | |
2483 | ||
2484 | case O (O_LDC, SW): /* ldc.w */ | |
2485 | if (fetch (sd, &code->src, &res)) | |
2486 | goto end; | |
2487 | ||
2488 | /* Word operand, value from MSB, must be shifted. */ | |
2489 | res >>= 8; | |
2490 | goto setc; | |
2491 | ||
2492 | case O (O_LDC, SL): /* ldc.l */ | |
2493 | if (fetch (sd, &code->src, &res)) | |
2494 | goto end; | |
2495 | switch (code->dst.type) { | |
2496 | case X (OP_SBR, SL): | |
2497 | h8_set_sbr (sd, res); | |
2498 | break; | |
2499 | case X (OP_VBR, SL): | |
2500 | h8_set_vbr (sd, res); | |
2501 | break; | |
2502 | default: | |
2503 | goto illegal; | |
2504 | } | |
2505 | goto next; | |
2506 | ||
2507 | case O (O_STC, SW): /* stc.w */ | |
2508 | case O (O_STC, SB): /* stc.b */ | |
2509 | if (code->src.type == X (OP_CCR, SB)) | |
2510 | { | |
2511 | BUILDSR (sd); | |
2512 | res = h8_get_ccr (sd); | |
2513 | } | |
2514 | else if (code->src.type == X (OP_EXR, SB) && h8300smode) | |
2515 | { | |
2516 | if (h8300smode) | |
2517 | h8_set_exr (sd, (trace << 7) | intMask); | |
2518 | res = h8_get_exr (sd); | |
2519 | } | |
2520 | else | |
2521 | goto illegal; | |
2522 | ||
2523 | /* Word operand, value to MSB, must be shifted. */ | |
2524 | if (code->opcode == X (O_STC, SW)) | |
2525 | res <<= 8; | |
2526 | if (store (sd, &code->dst, res)) | |
2527 | goto end; | |
2528 | goto next; | |
2529 | case O (O_STC, SL): /* stc.l */ | |
2530 | switch (code->src.type) { | |
2531 | case X (OP_SBR, SL): | |
2532 | res = h8_get_sbr (sd); | |
2533 | break; | |
2534 | case X (OP_VBR, SL): | |
2535 | res = h8_get_vbr (sd); | |
2536 | break; | |
2537 | default: | |
2538 | goto illegal; | |
2539 | } | |
2540 | if (store (sd, &code->dst, res)) | |
2541 | goto end; | |
2542 | goto next; | |
2543 | ||
2544 | case O (O_ANDC, SB): /* andc.b */ | |
2545 | if (code->dst.type == X (OP_CCR, SB)) | |
2546 | { | |
2547 | BUILDSR (sd); | |
2548 | rd = h8_get_ccr (sd); | |
2549 | } | |
2550 | else if (code->dst.type == X (OP_EXR, SB) && h8300smode) | |
2551 | { | |
2552 | if (h8300smode) | |
2553 | h8_set_exr (sd, (trace << 7) | intMask); | |
d6fd015d | 2554 | rd = h8_get_exr (sd); |
dc5c3759 MS |
2555 | } |
2556 | else | |
2557 | goto illegal; | |
2558 | ea = code->src.literal; | |
2559 | res = rd & ea; | |
2560 | goto setc; | |
2561 | ||
2562 | case O (O_ORC, SB): /* orc.b */ | |
2563 | if (code->dst.type == X (OP_CCR, SB)) | |
2564 | { | |
2565 | BUILDSR (sd); | |
2566 | rd = h8_get_ccr (sd); | |
2567 | } | |
2568 | else if (code->dst.type == X (OP_EXR, SB) && h8300smode) | |
2569 | { | |
2570 | if (h8300smode) | |
2571 | h8_set_exr (sd, (trace << 7) | intMask); | |
2572 | rd = h8_get_exr (sd); | |
2573 | } | |
2574 | else | |
2575 | goto illegal; | |
2576 | ea = code->src.literal; | |
2577 | res = rd | ea; | |
2578 | goto setc; | |
2579 | ||
2580 | case O (O_XORC, SB): /* xorc.b */ | |
2581 | if (code->dst.type == X (OP_CCR, SB)) | |
2582 | { | |
2583 | BUILDSR (sd); | |
2584 | rd = h8_get_ccr (sd); | |
2585 | } | |
2586 | else if (code->dst.type == X (OP_EXR, SB) && h8300smode) | |
2587 | { | |
2588 | if (h8300smode) | |
2589 | h8_set_exr (sd, (trace << 7) | intMask); | |
2590 | rd = h8_get_exr (sd); | |
2591 | } | |
2592 | else | |
2593 | goto illegal; | |
2594 | ea = code->src.literal; | |
2595 | res = rd ^ ea; | |
2596 | goto setc; | |
2597 | ||
2598 | case O (O_BRAS, SB): /* bra/s */ | |
2599 | /* This is basically an ordinary branch, with a delay slot. */ | |
2600 | if (fetch (sd, &code->src, &res)) | |
2601 | goto end; | |
2602 | ||
2603 | if ((res & 1) == 0) | |
2604 | goto illegal; | |
2605 | ||
2606 | res -= 1; | |
2607 | ||
2608 | /* Execution continues at next instruction, but | |
2609 | delayed_branch is set up for next cycle. */ | |
2610 | h8_set_delayed_branch (sd, code->next_pc + res); | |
2611 | pc = code->next_pc; | |
2612 | goto end; | |
2613 | ||
2614 | case O (O_BRAB, SB): /* bra rd.b */ | |
2615 | case O (O_BRAW, SW): /* bra rd.w */ | |
2616 | case O (O_BRAL, SL): /* bra erd.l */ | |
2617 | if (fetch (sd, &code->src, &rd)) | |
2618 | goto end; | |
2619 | switch (OP_SIZE (code->opcode)) { | |
2620 | case SB: rd &= 0xff; break; | |
2621 | case SW: rd &= 0xffff; break; | |
2622 | case SL: rd &= 0xffffffff; break; | |
2623 | } | |
2624 | pc = code->next_pc + rd; | |
2625 | goto end; | |
2626 | ||
2627 | case O (O_BRABC, SB): /* bra/bc, branch if bit clear */ | |
2628 | case O (O_BRABS, SB): /* bra/bs, branch if bit set */ | |
2629 | case O (O_BSRBC, SB): /* bsr/bc, call if bit clear */ | |
2630 | case O (O_BSRBS, SB): /* bsr/bs, call if bit set */ | |
2631 | if (fetch (sd, &code->dst, &rd) || | |
2632 | fetch (sd, &code->src, &bit)) | |
2633 | goto end; | |
2634 | ||
2635 | if (code->opcode == O (O_BRABC, SB) || /* branch if clear */ | |
2636 | code->opcode == O (O_BSRBC, SB)) /* call if clear */ | |
2637 | { | |
2638 | if ((rd & (1 << bit))) /* no branch */ | |
2639 | goto next; | |
2640 | } | |
2641 | else /* branch/call if set */ | |
2642 | { | |
2643 | if (!(rd & (1 << bit))) /* no branch */ | |
2644 | goto next; | |
2645 | } | |
2646 | ||
2647 | if (fetch (sd, &code->op3, &res)) /* branch */ | |
2648 | goto end; | |
2649 | pc = code->next_pc + res; | |
2650 | ||
2651 | if (code->opcode == O (O_BRABC, SB) || | |
2652 | code->opcode == O (O_BRABS, SB)) /* branch */ | |
2653 | goto end; | |
2654 | else /* call */ | |
2655 | goto call; | |
2656 | ||
2657 | case O (O_BRA, SN): | |
2658 | case O (O_BRA, SL): | |
2659 | case O (O_BRA, SW): | |
2660 | case O (O_BRA, SB): /* bra, branch always */ | |
2661 | if (1) | |
2662 | goto condtrue; | |
2663 | goto next; | |
2664 | ||
2665 | case O (O_BRN, SB): /* brn, ;-/ branch never? */ | |
2666 | if (0) | |
2667 | goto condtrue; | |
2668 | goto next; | |
2669 | ||
2670 | case O (O_BHI, SB): /* bhi */ | |
2671 | if ((C || Z) == 0) | |
2672 | goto condtrue; | |
2673 | goto next; | |
2674 | ||
2675 | ||
2676 | case O (O_BLS, SB): /* bls */ | |
2677 | if ((C || Z)) | |
2678 | goto condtrue; | |
2679 | goto next; | |
2680 | ||
2681 | case O (O_BCS, SB): /* bcs, branch if carry set */ | |
2682 | if ((C == 1)) | |
2683 | goto condtrue; | |
2684 | goto next; | |
2685 | ||
2686 | case O (O_BCC, SB): /* bcc, branch if carry clear */ | |
2687 | if ((C == 0)) | |
2688 | goto condtrue; | |
2689 | goto next; | |
2690 | ||
2691 | case O (O_BEQ, SB): /* beq, branch if zero set */ | |
2692 | if (Z) | |
2693 | goto condtrue; | |
2694 | goto next; | |
2695 | case O (O_BGT, SB): /* bgt */ | |
2696 | if (((Z || (N ^ V)) == 0)) | |
2697 | goto condtrue; | |
2698 | goto next; | |
2699 | ||
2700 | case O (O_BLE, SB): /* ble */ | |
2701 | if (((Z || (N ^ V)) == 1)) | |
2702 | goto condtrue; | |
2703 | goto next; | |
2704 | ||
2705 | case O (O_BGE, SB): /* bge */ | |
2706 | if ((N ^ V) == 0) | |
2707 | goto condtrue; | |
2708 | goto next; | |
2709 | case O (O_BLT, SB): /* blt */ | |
2710 | if ((N ^ V)) | |
2711 | goto condtrue; | |
2712 | goto next; | |
2713 | case O (O_BMI, SB): /* bmi */ | |
2714 | if ((N)) | |
2715 | goto condtrue; | |
2716 | goto next; | |
2717 | case O (O_BNE, SB): /* bne, branch if zero clear */ | |
2718 | if ((Z == 0)) | |
2719 | goto condtrue; | |
2720 | goto next; | |
2721 | ||
2722 | case O (O_BPL, SB): /* bpl */ | |
2723 | if (N == 0) | |
2724 | goto condtrue; | |
2725 | goto next; | |
2726 | case O (O_BVC, SB): /* bvc */ | |
2727 | if ((V == 0)) | |
2728 | goto condtrue; | |
2729 | goto next; | |
2730 | case O (O_BVS, SB): /* bvs */ | |
2731 | if ((V == 1)) | |
2732 | goto condtrue; | |
2733 | goto next; | |
2734 | ||
2735 | /* Trap for Command Line setup. */ | |
2736 | case O (O_SYS_CMDLINE, SB): | |
2737 | { | |
2738 | int i = 0; /* Loop counter. */ | |
2739 | int j = 0; /* Loop counter. */ | |
2740 | int ind_arg_len = 0; /* Length of each argument. */ | |
2741 | int no_of_args = 0; /* The no. or cmdline args. */ | |
2742 | int current_location = 0; /* Location of string. */ | |
2743 | int old_sp = 0; /* The Initial Stack Pointer. */ | |
2744 | int no_of_slots = 0; /* No. of slots required on the stack | |
2745 | for storing cmdline args. */ | |
2746 | int sp_move = 0; /* No. of locations by which the stack needs | |
2747 | to grow. */ | |
2748 | int new_sp = 0; /* The final stack pointer location passed | |
2749 | back. */ | |
2750 | int *argv_ptrs; /* Pointers of argv strings to be stored. */ | |
2751 | int argv_ptrs_location = 0; /* Location of pointers to cmdline | |
2752 | args on the stack. */ | |
2753 | int char_ptr_size = 0; /* Size of a character pointer on | |
2754 | target machine. */ | |
2755 | int addr_cmdline = 0; /* Memory location where cmdline has | |
2756 | to be stored. */ | |
2757 | int size_cmdline = 0; /* Size of cmdline. */ | |
2758 | ||
2759 | /* Set the address of 256 free locations where command line is | |
2760 | stored. */ | |
2761 | addr_cmdline = cmdline_location(); | |
2762 | h8_set_reg (sd, 0, addr_cmdline); | |
2763 | ||
2764 | /* Counting the no. of commandline arguments. */ | |
2765 | for (i = 0; h8_get_cmdline_arg (sd, i) != NULL; i++) | |
2766 | continue; | |
2767 | ||
2768 | /* No. of arguments in the command line. */ | |
2769 | no_of_args = i; | |
2770 | ||
2771 | /* Current location is just a temporary variable,which we are | |
2772 | setting to the point to the start of our commandline string. */ | |
2773 | current_location = addr_cmdline; | |
2774 | ||
2775 | /* Allocating space for storing pointers of the command line | |
2776 | arguments. */ | |
2777 | argv_ptrs = (int *) malloc (sizeof (int) * no_of_args); | |
2778 | ||
2779 | /* Setting char_ptr_size to the sizeof (char *) on the different | |
2780 | architectures. */ | |
59768597 | 2781 | if ((h8300hmode || h8300smode) && !h8300_normal_mode) |
dc5c3759 MS |
2782 | { |
2783 | char_ptr_size = 4; | |
2784 | } | |
2785 | else | |
2786 | { | |
2787 | char_ptr_size = 2; | |
2788 | } | |
2789 | ||
2790 | for (i = 0; i < no_of_args; i++) | |
2791 | { | |
2792 | ind_arg_len = 0; | |
2793 | ||
2794 | /* The size of the commandline argument. */ | |
917c78f9 | 2795 | ind_arg_len = strlen (h8_get_cmdline_arg (sd, i)) + 1; |
dc5c3759 MS |
2796 | |
2797 | /* The total size of the command line string. */ | |
2798 | size_cmdline += ind_arg_len; | |
2799 | ||
2800 | /* As we have only 256 bytes, we need to provide a graceful | |
2801 | exit. Anyways, a program using command line arguments | |
2802 | where we cannot store all the command line arguments | |
2803 | given may behave unpredictably. */ | |
2804 | if (size_cmdline >= 256) | |
2805 | { | |
2806 | h8_set_reg (sd, 0, 0); | |
2807 | goto next; | |
2808 | } | |
2809 | else | |
2810 | { | |
2811 | /* current_location points to the memory where the next | |
2812 | commandline argument is stored. */ | |
2813 | argv_ptrs[i] = current_location; | |
2814 | for (j = 0; j < ind_arg_len; j++) | |
2815 | { | |
2816 | SET_MEMORY_B ((current_location + | |
2817 | (sizeof (char) * j)), | |
2818 | *(h8_get_cmdline_arg (sd, i) + | |
2819 | sizeof (char) * j)); | |
2820 | } | |
2821 | ||
2822 | /* Setting current_location to the starting of next | |
2823 | argument. */ | |
2824 | current_location += ind_arg_len; | |
2825 | } | |
2826 | } | |
2827 | ||
2828 | /* This is the original position of the stack pointer. */ | |
2829 | old_sp = h8_get_reg (sd, SP_REGNUM); | |
2830 | ||
2831 | /* We need space from the stack to store the pointers to argvs. */ | |
2832 | /* As we will infringe on the stack, we need to shift the stack | |
2833 | pointer so that the data is not overwritten. We calculate how | |
2834 | much space is required. */ | |
2835 | sp_move = (no_of_args) * (char_ptr_size); | |
2836 | ||
2837 | /* The final position of stack pointer, we have thus taken some | |
2838 | space from the stack. */ | |
2839 | new_sp = old_sp - sp_move; | |
2840 | ||
2841 | /* Temporary variable holding value where the argv pointers need | |
2842 | to be stored. */ | |
2843 | argv_ptrs_location = new_sp; | |
2844 | ||
2845 | /* The argv pointers are stored at sequential locations. As per | |
2846 | the H8300 ABI. */ | |
2847 | for (i = 0; i < no_of_args; i++) | |
2848 | { | |
2849 | /* Saving the argv pointer. */ | |
59768597 | 2850 | if ((h8300hmode || h8300smode) && !h8300_normal_mode) |
dc5c3759 MS |
2851 | { |
2852 | SET_MEMORY_L (argv_ptrs_location, argv_ptrs[i]); | |
2853 | } | |
2854 | else | |
2855 | { | |
2856 | SET_MEMORY_W (argv_ptrs_location, argv_ptrs[i]); | |
2857 | } | |
2858 | ||
2859 | /* The next location where the pointer to the next argv | |
2860 | string has to be stored. */ | |
2861 | argv_ptrs_location += char_ptr_size; | |
2862 | } | |
2863 | ||
2864 | /* Required by POSIX, Setting 0x0 at the end of the list of argv | |
2865 | pointers. */ | |
59768597 | 2866 | if ((h8300hmode || h8300smode) && !h8300_normal_mode) |
dc5c3759 MS |
2867 | { |
2868 | SET_MEMORY_L (old_sp, 0x0); | |
2869 | } | |
2870 | else | |
2871 | { | |
2872 | SET_MEMORY_W (old_sp, 0x0); | |
2873 | } | |
2874 | ||
2875 | /* Freeing allocated memory. */ | |
2876 | free (argv_ptrs); | |
2877 | for (i = 0; i <= no_of_args; i++) | |
2878 | { | |
2879 | free (h8_get_cmdline_arg (sd, i)); | |
2880 | } | |
2881 | free (h8_get_command_line (sd)); | |
2882 | ||
2883 | /* The no. of argv arguments are returned in Reg 0. */ | |
2884 | h8_set_reg (sd, 0, no_of_args); | |
2885 | /* The Pointer to argv in Register 1. */ | |
2886 | h8_set_reg (sd, 1, new_sp); | |
2887 | /* Setting the stack pointer to the new value. */ | |
2888 | h8_set_reg (sd, SP_REGNUM, new_sp); | |
2889 | } | |
2890 | goto next; | |
2891 | ||
2892 | /* System call processing starts. */ | |
2893 | case O (O_SYS_OPEN, SB): | |
2894 | { | |
2895 | int len = 0; /* Length of filename. */ | |
2896 | char *filename; /* Filename would go here. */ | |
2897 | char temp_char; /* Temporary character */ | |
2898 | int mode = 0; /* Mode bits for the file. */ | |
2899 | int open_return; /* Return value of open, file descriptor. */ | |
2900 | int i; /* Loop counter */ | |
2901 | int filename_ptr; /* Pointer to filename in cpu memory. */ | |
2902 | ||
2903 | /* Setting filename_ptr to first argument of open, */ | |
2904 | /* and trying to get mode. */ | |
59768597 | 2905 | if ((h8300sxmode || h8300hmode || h8300smode) && !h8300_normal_mode) |
dc5c3759 MS |
2906 | { |
2907 | filename_ptr = GET_L_REG (0); | |
2908 | mode = GET_MEMORY_L (h8_get_reg (sd, SP_REGNUM) + 4); | |
2909 | } | |
2910 | else | |
2911 | { | |
2912 | filename_ptr = GET_W_REG (0); | |
2913 | mode = GET_MEMORY_W (h8_get_reg (sd, SP_REGNUM) + 2); | |
2914 | } | |
2915 | ||
2916 | /* Trying to find the length of the filename. */ | |
2917 | temp_char = GET_MEMORY_B (h8_get_reg (sd, 0)); | |
2918 | ||
2919 | len = 1; | |
2920 | while (temp_char != '\0') | |
2921 | { | |
2922 | temp_char = GET_MEMORY_B (filename_ptr + len); | |
2923 | len++; | |
2924 | } | |
2925 | ||
2926 | /* Allocating space for the filename. */ | |
2927 | filename = (char *) malloc (sizeof (char) * len); | |
2928 | ||
2929 | /* String copying the filename from memory. */ | |
2930 | for (i = 0; i < len; i++) | |
2931 | { | |
2932 | temp_char = GET_MEMORY_B (filename_ptr + i); | |
2933 | filename[i] = temp_char; | |
2934 | } | |
2935 | ||
2936 | /* Callback to open and return the file descriptor. */ | |
2937 | open_return = sim_callback->open (sim_callback, filename, mode); | |
2938 | ||
2939 | /* Return value in register 0. */ | |
2940 | h8_set_reg (sd, 0, open_return); | |
2941 | ||
2942 | /* Freeing memory used for filename. */ | |
2943 | free (filename); | |
2944 | } | |
2945 | goto next; | |
2946 | ||
2947 | case O (O_SYS_READ, SB): | |
2948 | { | |
2949 | char *char_ptr; /* Where characters read would be stored. */ | |
2950 | int fd; /* File descriptor */ | |
2951 | int buf_size; /* BUF_SIZE parameter in read. */ | |
2952 | int i = 0; /* Temporary Loop counter */ | |
2953 | int read_return = 0; /* Return value from callback to | |
2954 | read. */ | |
2955 | ||
59768597 SA |
2956 | fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0); |
2957 | buf_size = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (2) : GET_W_REG (2); | |
dc5c3759 MS |
2958 | |
2959 | char_ptr = (char *) malloc (sizeof (char) * buf_size); | |
2960 | ||
2961 | /* Callback to read and return the no. of characters read. */ | |
2962 | read_return = | |
2963 | sim_callback->read (sim_callback, fd, char_ptr, buf_size); | |
2964 | ||
2965 | /* The characters read are stored in cpu memory. */ | |
2966 | for (i = 0; i < buf_size; i++) | |
2967 | { | |
2968 | SET_MEMORY_B ((h8_get_reg (sd, 1) + (sizeof (char) * i)), | |
2969 | *(char_ptr + (sizeof (char) * i))); | |
2970 | } | |
2971 | ||
2972 | /* Return value in Register 0. */ | |
2973 | h8_set_reg (sd, 0, read_return); | |
2974 | ||
2975 | /* Freeing memory used as buffer. */ | |
2976 | free (char_ptr); | |
2977 | } | |
2978 | goto next; | |
2979 | ||
2980 | case O (O_SYS_WRITE, SB): | |
2981 | { | |
2982 | int fd; /* File descriptor */ | |
2983 | char temp_char; /* Temporary character */ | |
2984 | int len; /* Length of write, Parameter II to write. */ | |
2985 | int char_ptr; /* Character Pointer, Parameter I of write. */ | |
2986 | char *ptr; /* Where characters to be written are stored. | |
2987 | */ | |
2988 | int write_return; /* Return value from callback to write. */ | |
2989 | int i = 0; /* Loop counter */ | |
2990 | ||
59768597 SA |
2991 | fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0); |
2992 | char_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1); | |
2993 | len = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (2) : GET_W_REG (2); | |
dc5c3759 MS |
2994 | |
2995 | /* Allocating space for the characters to be written. */ | |
2996 | ptr = (char *) malloc (sizeof (char) * len); | |
2997 | ||
2998 | /* Fetching the characters from cpu memory. */ | |
2999 | for (i = 0; i < len; i++) | |
3000 | { | |
3001 | temp_char = GET_MEMORY_B (char_ptr + i); | |
3002 | ptr[i] = temp_char; | |
3003 | } | |
3004 | ||
3005 | /* Callback write and return the no. of characters written. */ | |
3006 | write_return = sim_callback->write (sim_callback, fd, ptr, len); | |
3007 | ||
3008 | /* Return value in Register 0. */ | |
3009 | h8_set_reg (sd, 0, write_return); | |
3010 | ||
3011 | /* Freeing memory used as buffer. */ | |
3012 | free (ptr); | |
3013 | } | |
3014 | goto next; | |
3015 | ||
3016 | case O (O_SYS_LSEEK, SB): | |
3017 | { | |
3018 | int fd; /* File descriptor */ | |
3019 | int offset; /* Offset */ | |
3020 | int origin; /* Origin */ | |
3021 | int lseek_return; /* Return value from callback to lseek. */ | |
3022 | ||
59768597 SA |
3023 | fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0); |
3024 | offset = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1); | |
3025 | origin = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (2) : GET_W_REG (2); | |
c906108c | 3026 | |
dc5c3759 MS |
3027 | /* Callback lseek and return offset. */ |
3028 | lseek_return = | |
3029 | sim_callback->lseek (sim_callback, fd, offset, origin); | |
3b02cf92 | 3030 | |
dc5c3759 MS |
3031 | /* Return value in register 0. */ |
3032 | h8_set_reg (sd, 0, lseek_return); | |
3033 | } | |
3034 | goto next; | |
c906108c | 3035 | |
dc5c3759 MS |
3036 | case O (O_SYS_CLOSE, SB): |
3037 | { | |
3038 | int fd; /* File descriptor */ | |
3039 | int close_return; /* Return value from callback to close. */ | |
c906108c | 3040 | |
59768597 | 3041 | fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0); |
c906108c | 3042 | |
dc5c3759 MS |
3043 | /* Callback close and return. */ |
3044 | close_return = sim_callback->close (sim_callback, fd); | |
c906108c | 3045 | |
dc5c3759 MS |
3046 | /* Return value in register 0. */ |
3047 | h8_set_reg (sd, 0, close_return); | |
3048 | } | |
3049 | goto next; | |
c906108c | 3050 | |
dc5c3759 MS |
3051 | case O (O_SYS_FSTAT, SB): |
3052 | { | |
3053 | int fd; /* File descriptor */ | |
3054 | struct stat stat_rec; /* Stat record */ | |
3055 | int fstat_return; /* Return value from callback to stat. */ | |
3056 | int stat_ptr; /* Pointer to stat record. */ | |
3057 | char *temp_stat_ptr; /* Temporary stat_rec pointer. */ | |
c906108c | 3058 | |
59768597 | 3059 | fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0); |
c906108c | 3060 | |
dc5c3759 | 3061 | /* Setting stat_ptr to second argument of stat. */ |
59768597 | 3062 | stat_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1); |
c906108c | 3063 | |
dc5c3759 MS |
3064 | /* Callback stat and return. */ |
3065 | fstat_return = sim_callback->fstat (sim_callback, fd, &stat_rec); | |
c906108c | 3066 | |
dc5c3759 MS |
3067 | /* Have stat_ptr point to starting of stat_rec. */ |
3068 | temp_stat_ptr = (char *) (&stat_rec); | |
c906108c | 3069 | |
dc5c3759 MS |
3070 | /* Setting up the stat structure returned. */ |
3071 | SET_MEMORY_W (stat_ptr, stat_rec.st_dev); | |
3072 | stat_ptr += 2; | |
3073 | SET_MEMORY_W (stat_ptr, stat_rec.st_ino); | |
3074 | stat_ptr += 2; | |
3075 | SET_MEMORY_L (stat_ptr, stat_rec.st_mode); | |
3076 | stat_ptr += 4; | |
3077 | SET_MEMORY_W (stat_ptr, stat_rec.st_nlink); | |
3078 | stat_ptr += 2; | |
3079 | SET_MEMORY_W (stat_ptr, stat_rec.st_uid); | |
3080 | stat_ptr += 2; | |
3081 | SET_MEMORY_W (stat_ptr, stat_rec.st_gid); | |
3082 | stat_ptr += 2; | |
3083 | SET_MEMORY_W (stat_ptr, stat_rec.st_rdev); | |
3084 | stat_ptr += 2; | |
3085 | SET_MEMORY_L (stat_ptr, stat_rec.st_size); | |
3086 | stat_ptr += 4; | |
3087 | SET_MEMORY_L (stat_ptr, stat_rec.st_atime); | |
3088 | stat_ptr += 8; | |
3089 | SET_MEMORY_L (stat_ptr, stat_rec.st_mtime); | |
3090 | stat_ptr += 8; | |
3091 | SET_MEMORY_L (stat_ptr, stat_rec.st_ctime); | |
c906108c | 3092 | |
dc5c3759 MS |
3093 | /* Return value in register 0. */ |
3094 | h8_set_reg (sd, 0, fstat_return); | |
3095 | } | |
3096 | goto next; | |
c906108c | 3097 | |
dc5c3759 MS |
3098 | case O (O_SYS_STAT, SB): |
3099 | { | |
3100 | int len = 0; /* Length of filename. */ | |
3101 | char *filename; /* Filename would go here. */ | |
3102 | char temp_char; /* Temporary character */ | |
3103 | int filename_ptr; /* Pointer to filename in cpu memory. */ | |
3104 | struct stat stat_rec; /* Stat record */ | |
3105 | int stat_return; /* Return value from callback to stat */ | |
3106 | int stat_ptr; /* Pointer to stat record. */ | |
3107 | char *temp_stat_ptr; /* Temporary stat_rec pointer. */ | |
3108 | int i = 0; /* Loop Counter */ | |
c906108c | 3109 | |
dc5c3759 | 3110 | /* Setting filename_ptr to first argument of open. */ |
59768597 | 3111 | filename_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0); |
c906108c | 3112 | |
dc5c3759 MS |
3113 | /* Trying to find the length of the filename. */ |
3114 | temp_char = GET_MEMORY_B (h8_get_reg (sd, 0)); | |
c906108c | 3115 | |
dc5c3759 MS |
3116 | len = 1; |
3117 | while (temp_char != '\0') | |
3118 | { | |
3119 | temp_char = GET_MEMORY_B (filename_ptr + len); | |
3120 | len++; | |
3121 | } | |
d0fe2f7e | 3122 | |
dc5c3759 MS |
3123 | /* Allocating space for the filename. */ |
3124 | filename = (char *) malloc (sizeof (char) * len); | |
c3f4437e | 3125 | |
dc5c3759 MS |
3126 | /* String copying the filename from memory. */ |
3127 | for (i = 0; i < len; i++) | |
3128 | { | |
3129 | temp_char = GET_MEMORY_B (filename_ptr + i); | |
3130 | filename[i] = temp_char; | |
3131 | } | |
c906108c | 3132 | |
dc5c3759 MS |
3133 | /* Setting stat_ptr to second argument of stat. */ |
3134 | /* stat_ptr = h8_get_reg (sd, 1); */ | |
59768597 | 3135 | stat_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1); |
c906108c | 3136 | |
dc5c3759 MS |
3137 | /* Callback stat and return. */ |
3138 | stat_return = | |
3139 | sim_callback->stat (sim_callback, filename, &stat_rec); | |
c906108c | 3140 | |
dc5c3759 MS |
3141 | /* Have stat_ptr point to starting of stat_rec. */ |
3142 | temp_stat_ptr = (char *) (&stat_rec); | |
3143 | ||
3144 | /* Freeing memory used for filename. */ | |
3145 | free (filename); | |
3146 | ||
3147 | /* Setting up the stat structure returned. */ | |
3148 | SET_MEMORY_W (stat_ptr, stat_rec.st_dev); | |
3149 | stat_ptr += 2; | |
3150 | SET_MEMORY_W (stat_ptr, stat_rec.st_ino); | |
3151 | stat_ptr += 2; | |
3152 | SET_MEMORY_L (stat_ptr, stat_rec.st_mode); | |
3153 | stat_ptr += 4; | |
3154 | SET_MEMORY_W (stat_ptr, stat_rec.st_nlink); | |
3155 | stat_ptr += 2; | |
3156 | SET_MEMORY_W (stat_ptr, stat_rec.st_uid); | |
3157 | stat_ptr += 2; | |
3158 | SET_MEMORY_W (stat_ptr, stat_rec.st_gid); | |
3159 | stat_ptr += 2; | |
3160 | SET_MEMORY_W (stat_ptr, stat_rec.st_rdev); | |
3161 | stat_ptr += 2; | |
3162 | SET_MEMORY_L (stat_ptr, stat_rec.st_size); | |
3163 | stat_ptr += 4; | |
3164 | SET_MEMORY_L (stat_ptr, stat_rec.st_atime); | |
3165 | stat_ptr += 8; | |
3166 | SET_MEMORY_L (stat_ptr, stat_rec.st_mtime); | |
3167 | stat_ptr += 8; | |
3168 | SET_MEMORY_L (stat_ptr, stat_rec.st_ctime); | |
3169 | ||
3170 | /* Return value in register 0. */ | |
3171 | h8_set_reg (sd, 0, stat_return); | |
3172 | } | |
c906108c | 3173 | goto next; |
dc5c3759 | 3174 | /* End of system call processing. */ |
c906108c | 3175 | |
dc5c3759 MS |
3176 | case O (O_NOT, SB): /* not.b */ |
3177 | if (fetch2 (sd, &code->src, &rd)) | |
3178 | goto end; | |
3179 | rd = ~rd; | |
3180 | v = 0; | |
3181 | goto shift8; | |
c906108c | 3182 | |
dc5c3759 MS |
3183 | case O (O_NOT, SW): /* not.w */ |
3184 | if (fetch2 (sd, &code->src, &rd)) | |
3185 | goto end; | |
3186 | rd = ~rd; | |
3187 | v = 0; | |
3188 | goto shift16; | |
c906108c | 3189 | |
dc5c3759 MS |
3190 | case O (O_NOT, SL): /* not.l */ |
3191 | if (fetch2 (sd, &code->src, &rd)) | |
3192 | goto end; | |
3193 | rd = ~rd; | |
3194 | v = 0; | |
3195 | goto shift32; | |
c906108c | 3196 | |
dc5c3759 MS |
3197 | case O (O_SHLL, SB): /* shll.b */ |
3198 | case O (O_SHLR, SB): /* shlr.b */ | |
3199 | if (fetch2 (sd, &code->dst, &rd)) | |
3200 | goto end; | |
c906108c | 3201 | |
55acb21b MS |
3202 | if (memcmp (&code->src, &code->dst, sizeof (code->src)) == 0) |
3203 | ea = 1; /* unary op */ | |
3204 | else /* binary op */ | |
dc5c3759 | 3205 | fetch (sd, &code->src, &ea); |
c906108c | 3206 | |
dc5c3759 MS |
3207 | if (code->opcode == O (O_SHLL, SB)) |
3208 | { | |
3209 | v = (ea > 8); | |
3210 | c = rd & (0x80 >> (ea - 1)); | |
3211 | rd <<= ea; | |
3212 | } | |
3213 | else | |
3214 | { | |
3215 | v = 0; | |
3216 | c = rd & (1 << (ea - 1)); | |
3217 | rd = (unsigned char) rd >> ea; | |
3218 | } | |
3219 | goto shift8; | |
c906108c | 3220 | |
dc5c3759 MS |
3221 | case O (O_SHLL, SW): /* shll.w */ |
3222 | case O (O_SHLR, SW): /* shlr.w */ | |
3223 | if (fetch2 (sd, &code->dst, &rd)) | |
3224 | goto end; | |
c906108c | 3225 | |
55acb21b MS |
3226 | if (memcmp (&code->src, &code->dst, sizeof (code->src)) == 0) |
3227 | ea = 1; /* unary op */ | |
dc5c3759 | 3228 | else |
55acb21b | 3229 | fetch (sd, &code->src, &ea); |
c906108c | 3230 | |
dc5c3759 MS |
3231 | if (code->opcode == O (O_SHLL, SW)) |
3232 | { | |
3233 | v = (ea > 16); | |
3234 | c = rd & (0x8000 >> (ea - 1)); | |
3235 | rd <<= ea; | |
3236 | } | |
3237 | else | |
3238 | { | |
3239 | v = 0; | |
3240 | c = rd & (1 << (ea - 1)); | |
3241 | rd = (unsigned short) rd >> ea; | |
3242 | } | |
3243 | goto shift16; | |
c906108c | 3244 | |
dc5c3759 MS |
3245 | case O (O_SHLL, SL): /* shll.l */ |
3246 | case O (O_SHLR, SL): /* shlr.l */ | |
3247 | if (fetch2 (sd, &code->dst, &rd)) | |
3248 | goto end; | |
c906108c | 3249 | |
55acb21b MS |
3250 | if (memcmp (&code->src, &code->dst, sizeof (code->src)) == 0) |
3251 | ea = 1; /* unary op */ | |
dc5c3759 | 3252 | else |
55acb21b | 3253 | fetch (sd, &code->src, &ea); |
c906108c | 3254 | |
dc5c3759 | 3255 | if (code->opcode == O (O_SHLL, SL)) |
c3f4437e | 3256 | { |
dc5c3759 MS |
3257 | v = (ea > 32); |
3258 | c = rd & (0x80000000 >> (ea - 1)); | |
3259 | rd <<= ea; | |
c3f4437e | 3260 | } |
dc5c3759 | 3261 | else |
c3f4437e | 3262 | { |
dc5c3759 MS |
3263 | v = 0; |
3264 | c = rd & (1 << (ea - 1)); | |
3265 | rd = (unsigned int) rd >> ea; | |
c3f4437e | 3266 | } |
dc5c3759 MS |
3267 | goto shift32; |
3268 | ||
3269 | case O (O_SHAL, SB): | |
3270 | case O (O_SHAR, SB): | |
3271 | if (fetch2 (sd, &code->dst, &rd)) | |
3272 | goto end; | |
3273 | ||
3274 | if (code->src.type == X (OP_IMM, SB)) | |
3275 | fetch (sd, &code->src, &ea); | |
c3f4437e | 3276 | else |
dc5c3759 | 3277 | ea = 1; |
6147b1f6 | 3278 | |
dc5c3759 | 3279 | if (code->opcode == O (O_SHAL, SB)) |
c3f4437e | 3280 | { |
dc5c3759 MS |
3281 | c = rd & (0x80 >> (ea - 1)); |
3282 | res = rd >> (7 - ea); | |
3283 | v = ((res & 1) && !(res & 2)) | |
3284 | || (!(res & 1) && (res & 2)); | |
3285 | rd <<= ea; | |
c3f4437e | 3286 | } |
dc5c3759 | 3287 | else |
c3f4437e | 3288 | { |
dc5c3759 MS |
3289 | c = rd & (1 << (ea - 1)); |
3290 | v = 0; | |
3291 | rd = ((signed char) rd) >> ea; | |
c3f4437e | 3292 | } |
dc5c3759 MS |
3293 | goto shift8; |
3294 | ||
3295 | case O (O_SHAL, SW): | |
3296 | case O (O_SHAR, SW): | |
3297 | if (fetch2 (sd, &code->dst, &rd)) | |
3298 | goto end; | |
3299 | ||
3300 | if (code->src.type == X (OP_IMM, SW)) | |
3301 | fetch (sd, &code->src, &ea); | |
c3f4437e | 3302 | else |
dc5c3759 | 3303 | ea = 1; |
c906108c | 3304 | |
dc5c3759 | 3305 | if (code->opcode == O (O_SHAL, SW)) |
c3f4437e | 3306 | { |
dc5c3759 MS |
3307 | c = rd & (0x8000 >> (ea - 1)); |
3308 | res = rd >> (15 - ea); | |
3309 | v = ((res & 1) && !(res & 2)) | |
3310 | || (!(res & 1) && (res & 2)); | |
3311 | rd <<= ea; | |
c3f4437e | 3312 | } |
dc5c3759 | 3313 | else |
c3f4437e | 3314 | { |
dc5c3759 MS |
3315 | c = rd & (1 << (ea - 1)); |
3316 | v = 0; | |
3317 | rd = ((signed short) rd) >> ea; | |
c3f4437e | 3318 | } |
dc5c3759 MS |
3319 | goto shift16; |
3320 | ||
3321 | case O (O_SHAL, SL): | |
3322 | case O (O_SHAR, SL): | |
3323 | if (fetch2 (sd, &code->dst, &rd)) | |
3324 | goto end; | |
3325 | ||
3326 | if (code->src.type == X (OP_IMM, SL)) | |
3327 | fetch (sd, &code->src, &ea); | |
3328 | else | |
3329 | ea = 1; | |
c906108c | 3330 | |
dc5c3759 | 3331 | if (code->opcode == O (O_SHAL, SL)) |
c3f4437e | 3332 | { |
dc5c3759 MS |
3333 | c = rd & (0x80000000 >> (ea - 1)); |
3334 | res = rd >> (31 - ea); | |
3335 | v = ((res & 1) && !(res & 2)) | |
3336 | || (!(res & 1) && (res & 2)); | |
3337 | rd <<= ea; | |
c3f4437e | 3338 | } |
dc5c3759 | 3339 | else |
c3f4437e | 3340 | { |
dc5c3759 MS |
3341 | c = rd & (1 << (ea - 1)); |
3342 | v = 0; | |
3343 | rd = ((signed int) rd) >> ea; | |
c3f4437e | 3344 | } |
dc5c3759 | 3345 | goto shift32; |
c906108c | 3346 | |
dc5c3759 MS |
3347 | case O (O_ROTL, SB): |
3348 | case O (O_ROTR, SB): | |
3349 | if (fetch2 (sd, &code->dst, &rd)) | |
3350 | goto end; | |
c906108c | 3351 | |
dc5c3759 MS |
3352 | if (code->src.type == X (OP_IMM, SB)) |
3353 | fetch (sd, &code->src, &ea); | |
3354 | else | |
3355 | ea = 1; | |
c906108c | 3356 | |
dc5c3759 MS |
3357 | while (ea--) |
3358 | if (code->opcode == O (O_ROTL, SB)) | |
3359 | { | |
3360 | c = rd & 0x80; | |
3361 | rd <<= 1; | |
3362 | if (c) | |
3363 | rd |= 1; | |
3364 | } | |
3365 | else | |
3366 | { | |
3367 | c = rd & 1; | |
3368 | rd = ((unsigned char) rd) >> 1; | |
3369 | if (c) | |
3370 | rd |= 0x80; | |
3371 | } | |
c906108c | 3372 | |
dc5c3759 MS |
3373 | v = 0; |
3374 | goto shift8; | |
c906108c | 3375 | |
dc5c3759 MS |
3376 | case O (O_ROTL, SW): |
3377 | case O (O_ROTR, SW): | |
3378 | if (fetch2 (sd, &code->dst, &rd)) | |
3379 | goto end; | |
c906108c | 3380 | |
dc5c3759 MS |
3381 | if (code->src.type == X (OP_IMM, SW)) |
3382 | fetch (sd, &code->src, &ea); | |
3383 | else | |
3384 | ea = 1; | |
c906108c | 3385 | |
dc5c3759 MS |
3386 | while (ea--) |
3387 | if (code->opcode == O (O_ROTL, SW)) | |
3388 | { | |
3389 | c = rd & 0x8000; | |
3390 | rd <<= 1; | |
3391 | if (c) | |
3392 | rd |= 1; | |
3393 | } | |
3394 | else | |
3395 | { | |
3396 | c = rd & 1; | |
3397 | rd = ((unsigned short) rd) >> 1; | |
3398 | if (c) | |
3399 | rd |= 0x8000; | |
3400 | } | |
c906108c | 3401 | |
dc5c3759 MS |
3402 | v = 0; |
3403 | goto shift16; | |
c906108c | 3404 | |
dc5c3759 MS |
3405 | case O (O_ROTL, SL): |
3406 | case O (O_ROTR, SL): | |
3407 | if (fetch2 (sd, &code->dst, &rd)) | |
3408 | goto end; | |
c906108c | 3409 | |
dc5c3759 MS |
3410 | if (code->src.type == X (OP_IMM, SL)) |
3411 | fetch (sd, &code->src, &ea); | |
3412 | else | |
3413 | ea = 1; | |
c906108c | 3414 | |
dc5c3759 MS |
3415 | while (ea--) |
3416 | if (code->opcode == O (O_ROTL, SL)) | |
3417 | { | |
3418 | c = rd & 0x80000000; | |
3419 | rd <<= 1; | |
3420 | if (c) | |
3421 | rd |= 1; | |
3422 | } | |
3423 | else | |
3424 | { | |
3425 | c = rd & 1; | |
3426 | rd = ((unsigned int) rd) >> 1; | |
3427 | if (c) | |
3428 | rd |= 0x80000000; | |
3429 | } | |
c906108c | 3430 | |
dc5c3759 MS |
3431 | v = 0; |
3432 | goto shift32; | |
c906108c | 3433 | |
dc5c3759 MS |
3434 | case O (O_ROTXL, SB): |
3435 | case O (O_ROTXR, SB): | |
3436 | if (fetch2 (sd, &code->dst, &rd)) | |
3437 | goto end; | |
d1360fb0 | 3438 | |
dc5c3759 MS |
3439 | if (code->src.type == X (OP_IMM, SB)) |
3440 | fetch (sd, &code->src, &ea); | |
3441 | else | |
3442 | ea = 1; | |
d1360fb0 | 3443 | |
dc5c3759 MS |
3444 | while (ea--) |
3445 | if (code->opcode == O (O_ROTXL, SB)) | |
3446 | { | |
3447 | res = rd & 0x80; | |
3448 | rd <<= 1; | |
3449 | if (C) | |
3450 | rd |= 1; | |
3451 | c = res; | |
3452 | } | |
3453 | else | |
3454 | { | |
3455 | res = rd & 1; | |
3456 | rd = ((unsigned char) rd) >> 1; | |
3457 | if (C) | |
3458 | rd |= 0x80; | |
3459 | c = res; | |
3460 | } | |
d1360fb0 | 3461 | |
dc5c3759 MS |
3462 | v = 0; |
3463 | goto shift8; | |
d1360fb0 | 3464 | |
dc5c3759 MS |
3465 | case O (O_ROTXL, SW): |
3466 | case O (O_ROTXR, SW): | |
3467 | if (fetch2 (sd, &code->dst, &rd)) | |
3468 | goto end; | |
d1360fb0 | 3469 | |
dc5c3759 MS |
3470 | if (code->src.type == X (OP_IMM, SW)) |
3471 | fetch (sd, &code->src, &ea); | |
3472 | else | |
3473 | ea = 1; | |
d1360fb0 | 3474 | |
dc5c3759 MS |
3475 | while (ea--) |
3476 | if (code->opcode == O (O_ROTXL, SW)) | |
d1360fb0 | 3477 | { |
dc5c3759 MS |
3478 | res = rd & 0x8000; |
3479 | rd <<= 1; | |
3480 | if (C) | |
3481 | rd |= 1; | |
3482 | c = res; | |
d1360fb0 V |
3483 | } |
3484 | else | |
3485 | { | |
dc5c3759 MS |
3486 | res = rd & 1; |
3487 | rd = ((unsigned short) rd) >> 1; | |
3488 | if (C) | |
3489 | rd |= 0x8000; | |
3490 | c = res; | |
d1360fb0 V |
3491 | } |
3492 | ||
dc5c3759 MS |
3493 | v = 0; |
3494 | goto shift16; | |
d1360fb0 | 3495 | |
dc5c3759 MS |
3496 | case O (O_ROTXL, SL): |
3497 | case O (O_ROTXR, SL): | |
3498 | if (fetch2 (sd, &code->dst, &rd)) | |
3499 | goto end; | |
d1360fb0 | 3500 | |
dc5c3759 MS |
3501 | if (code->src.type == X (OP_IMM, SL)) |
3502 | fetch (sd, &code->src, &ea); | |
3503 | else | |
3504 | ea = 1; | |
d1360fb0 | 3505 | |
dc5c3759 MS |
3506 | while (ea--) |
3507 | if (code->opcode == O (O_ROTXL, SL)) | |
3508 | { | |
3509 | res = rd & 0x80000000; | |
3510 | rd <<= 1; | |
3511 | if (C) | |
3512 | rd |= 1; | |
3513 | c = res; | |
3514 | } | |
3515 | else | |
3516 | { | |
3517 | res = rd & 1; | |
3518 | rd = ((unsigned int) rd) >> 1; | |
3519 | if (C) | |
3520 | rd |= 0x80000000; | |
3521 | c = res; | |
d1360fb0 V |
3522 | } |
3523 | ||
dc5c3759 MS |
3524 | v = 0; |
3525 | goto shift32; | |
d1360fb0 | 3526 | |
dc5c3759 MS |
3527 | case O (O_JMP, SN): |
3528 | case O (O_JMP, SL): | |
3529 | case O (O_JMP, SB): /* jmp */ | |
3530 | case O (O_JMP, SW): | |
9f70f8ec MS |
3531 | fetch (sd, &code->src, &pc); |
3532 | goto end; | |
d1360fb0 | 3533 | |
dc5c3759 MS |
3534 | case O (O_JSR, SN): |
3535 | case O (O_JSR, SL): | |
3536 | case O (O_JSR, SB): /* jsr, jump to subroutine */ | |
3537 | case O (O_JSR, SW): | |
9f70f8ec MS |
3538 | if (fetch (sd, &code->src, &pc)) |
3539 | goto end; | |
3540 | call: | |
3541 | tmp = h8_get_reg (sd, SP_REGNUM); | |
d1360fb0 | 3542 | |
59768597 | 3543 | if (h8300hmode && !h8300_normal_mode) |
9f70f8ec MS |
3544 | { |
3545 | tmp -= 4; | |
3546 | SET_MEMORY_L (tmp, code->next_pc); | |
3547 | } | |
3548 | else | |
3549 | { | |
3550 | tmp -= 2; | |
3551 | SET_MEMORY_W (tmp, code->next_pc); | |
3552 | } | |
3553 | h8_set_reg (sd, SP_REGNUM, tmp); | |
d1360fb0 | 3554 | |
9f70f8ec | 3555 | goto end; |
dc5c3759 MS |
3556 | |
3557 | case O (O_BSR, SW): | |
3558 | case O (O_BSR, SL): | |
3559 | case O (O_BSR, SB): /* bsr, branch to subroutine */ | |
3560 | if (fetch (sd, &code->src, &res)) | |
3561 | goto end; | |
3562 | pc = code->next_pc + res; | |
3563 | goto call; | |
3564 | ||
9f70f8ec MS |
3565 | case O (O_RTE, SN): /* rte, return from exception */ |
3566 | rte: | |
3567 | /* Pops exr and ccr before pc -- otherwise identical to rts. */ | |
3568 | tmp = h8_get_reg (sd, SP_REGNUM); | |
dc5c3759 | 3569 | |
9f70f8ec MS |
3570 | if (h8300smode) /* pop exr */ |
3571 | { | |
3572 | h8_set_exr (sd, GET_MEMORY_L (tmp)); | |
3573 | tmp += 4; | |
3574 | } | |
59768597 | 3575 | if (h8300hmode && !h8300_normal_mode) |
9f70f8ec MS |
3576 | { |
3577 | h8_set_ccr (sd, GET_MEMORY_L (tmp)); | |
3578 | tmp += 4; | |
3579 | pc = GET_MEMORY_L (tmp); | |
3580 | tmp += 4; | |
3581 | } | |
3582 | else | |
3583 | { | |
3584 | h8_set_ccr (sd, GET_MEMORY_W (tmp)); | |
3585 | tmp += 2; | |
3586 | pc = GET_MEMORY_W (tmp); | |
3587 | tmp += 2; | |
3588 | } | |
dc5c3759 | 3589 | |
9f70f8ec MS |
3590 | GETSR (sd); |
3591 | h8_set_reg (sd, SP_REGNUM, tmp); | |
3592 | goto end; | |
d1360fb0 | 3593 | |
9f70f8ec MS |
3594 | case O (O_RTS, SN): /* rts, return from subroutine */ |
3595 | rts: | |
3596 | tmp = h8_get_reg (sd, SP_REGNUM); | |
3597 | ||
59768597 | 3598 | if (h8300hmode && !h8300_normal_mode) |
9f70f8ec MS |
3599 | { |
3600 | pc = GET_MEMORY_L (tmp); | |
3601 | tmp += 4; | |
3602 | } | |
3603 | else | |
3604 | { | |
3605 | pc = GET_MEMORY_W (tmp); | |
3606 | tmp += 2; | |
3607 | } | |
3608 | ||
3609 | h8_set_reg (sd, SP_REGNUM, tmp); | |
3610 | goto end; | |
d1360fb0 | 3611 | |
dc5c3759 MS |
3612 | case O (O_ILL, SB): /* illegal */ |
3613 | sim_engine_set_run_state (sd, sim_stopped, SIGILL); | |
3614 | goto end; | |
3615 | ||
3616 | case O (O_SLEEP, SN): /* sleep */ | |
3617 | /* Check for magic numbers in r1 and r2. */ | |
3618 | if ((h8_get_reg (sd, R1_REGNUM) & 0xffff) == LIBC_EXIT_MAGIC1 && | |
3619 | (h8_get_reg (sd, R2_REGNUM) & 0xffff) == LIBC_EXIT_MAGIC2 && | |
3620 | SIM_WIFEXITED (h8_get_reg (sd, 0))) | |
3621 | { | |
3622 | /* This trap comes from _exit, not from gdb. */ | |
3623 | sim_engine_set_run_state (sd, sim_exited, | |
3624 | SIM_WEXITSTATUS (h8_get_reg (sd, 0))); | |
3625 | } | |
e22fef83 | 3626 | #if 0 |
f408565c MS |
3627 | /* Unfortunately this won't really work, because |
3628 | when we take a breakpoint trap, R0 has a "random", | |
3629 | user-defined value. Don't see any immediate solution. */ | |
f0861129 MS |
3630 | else if (SIM_WIFSTOPPED (h8_get_reg (sd, 0))) |
3631 | { | |
3632 | /* Pass the stop signal up to gdb. */ | |
3633 | sim_engine_set_run_state (sd, sim_stopped, | |
3634 | SIM_WSTOPSIG (h8_get_reg (sd, 0))); | |
3635 | } | |
e22fef83 | 3636 | #endif |
dc5c3759 MS |
3637 | else |
3638 | { | |
3639 | /* Treat it as a sigtrap. */ | |
3640 | sim_engine_set_run_state (sd, sim_stopped, SIGTRAP); | |
3641 | } | |
3642 | goto end; | |
bf174226 | 3643 | |
9f70f8ec MS |
3644 | case O (O_TRAPA, SB): /* trapa */ |
3645 | if (fetch (sd, &code->src, &res)) | |
59768597 SA |
3646 | goto end; /* res is vector number. */ |
3647 | ||
3648 | tmp = h8_get_reg (sd, SP_REGNUM); | |
3649 | if(h8300_normal_mode) | |
3650 | { | |
3651 | tmp -= 2; | |
3652 | SET_MEMORY_W (tmp, code->next_pc); | |
3653 | tmp -= 2; | |
3654 | SET_MEMORY_W (tmp, h8_get_ccr (sd)); | |
3655 | } | |
3656 | else | |
3657 | { | |
3658 | tmp -= 4; | |
3659 | SET_MEMORY_L (tmp, code->next_pc); | |
3660 | tmp -= 4; | |
3661 | SET_MEMORY_L (tmp, h8_get_ccr (sd)); | |
3662 | } | |
3663 | intMaskBit = 1; | |
3664 | BUILDSR (sd); | |
3665 | ||
9f70f8ec MS |
3666 | if (h8300smode) |
3667 | { | |
3668 | tmp -= 4; | |
3669 | SET_MEMORY_L (tmp, h8_get_exr (sd)); | |
3670 | } | |
3671 | ||
3672 | h8_set_reg (sd, SP_REGNUM, tmp); | |
3673 | ||
59768597 SA |
3674 | if(h8300_normal_mode) |
3675 | pc = GET_MEMORY_L (0x10 + res * 2); /* Vector addresses are 0x10,0x12,0x14 and 0x16 */ | |
3676 | else | |
3677 | pc = GET_MEMORY_L (0x20 + res * 4); | |
9f70f8ec MS |
3678 | goto end; |
3679 | ||
dc5c3759 MS |
3680 | case O (O_BPT, SN): |
3681 | sim_engine_set_run_state (sd, sim_stopped, SIGTRAP); | |
3682 | goto end; | |
bf174226 | 3683 | |
dc5c3759 MS |
3684 | case O (O_BSETEQ, SB): |
3685 | if (Z) | |
3686 | goto bset; | |
3687 | goto next; | |
bf174226 | 3688 | |
dc5c3759 MS |
3689 | case O (O_BSETNE, SB): |
3690 | if (!Z) | |
3691 | goto bset; | |
3692 | goto next; | |
bf174226 | 3693 | |
dc5c3759 MS |
3694 | case O (O_BCLREQ, SB): |
3695 | if (Z) | |
3696 | goto bclr; | |
3697 | goto next; | |
bf174226 | 3698 | |
dc5c3759 MS |
3699 | case O (O_BCLRNE, SB): |
3700 | if (!Z) | |
3701 | goto bclr; | |
3702 | goto next; | |
bf174226 | 3703 | |
dc5c3759 MS |
3704 | OBITOP (O_BNOT, 1, 1, ea ^= m); /* bnot */ |
3705 | OBITOP (O_BTST, 1, 0, nz = ea & m); /* btst */ | |
3706 | bset: | |
3707 | OBITOP (O_BSET, 1, 1, ea |= m); /* bset */ | |
3708 | bclr: | |
3709 | OBITOP (O_BCLR, 1, 1, ea &= ~m); /* bclr */ | |
3710 | OBITOP (O_BLD, 1, 0, c = ea & m); /* bld */ | |
3711 | OBITOP (O_BILD, 1, 0, c = !(ea & m)); /* bild */ | |
3712 | OBITOP (O_BST, 1, 1, ea &= ~m; | |
3713 | if (C) ea |= m); /* bst */ | |
3714 | OBITOP (O_BIST, 1, 1, ea &= ~m; | |
3715 | if (!C) ea |= m); /* bist */ | |
3716 | OBITOP (O_BSTZ, 1, 1, ea &= ~m; | |
3717 | if (Z) ea |= m); /* bstz */ | |
3718 | OBITOP (O_BISTZ, 1, 1, ea &= ~m; | |
3719 | if (!Z) ea |= m); /* bistz */ | |
3720 | OBITOP (O_BAND, 1, 0, c = (ea & m) && C); /* band */ | |
3721 | OBITOP (O_BIAND, 1, 0, c = !(ea & m) && C); /* biand */ | |
3722 | OBITOP (O_BOR, 1, 0, c = (ea & m) || C); /* bor */ | |
3723 | OBITOP (O_BIOR, 1, 0, c = !(ea & m) || C); /* bior */ | |
3724 | OBITOP (O_BXOR, 1, 0, c = ((ea & m) != 0)!= C); /* bxor */ | |
3725 | OBITOP (O_BIXOR, 1, 0, c = !(ea & m) != C); /* bixor */ | |
3726 | ||
3727 | case O (O_BFLD, SB): /* bfld */ | |
3728 | /* bitfield load */ | |
3729 | ea = 0; | |
3730 | if (fetch (sd, &code->src, &bit)) | |
3731 | goto end; | |
bf174226 | 3732 | |
dc5c3759 MS |
3733 | if (bit != 0) |
3734 | { | |
3735 | if (fetch (sd, &code->dst, &ea)) | |
3736 | goto end; | |
bf174226 | 3737 | |
dc5c3759 MS |
3738 | ea &= bit; |
3739 | while (!(bit & 1)) | |
3740 | { | |
3741 | ea >>= 1; | |
3742 | bit >>= 1; | |
3743 | } | |
3744 | } | |
3745 | if (store (sd, &code->op3, ea)) | |
3746 | goto end; | |
bf174226 | 3747 | |
c906108c SS |
3748 | goto next; |
3749 | ||
dc5c3759 MS |
3750 | case O(O_BFST, SB): /* bfst */ |
3751 | /* bitfield store */ | |
3752 | /* NOTE: the imm8 value is in dst, and the ea value | |
3753 | (which is actually the destination) is in op3. | |
3754 | It has to be that way, to avoid breaking the assembler. */ | |
bf174226 | 3755 | |
dc5c3759 MS |
3756 | if (fetch (sd, &code->dst, &bit)) /* imm8 */ |
3757 | goto end; | |
3758 | if (bit == 0) /* noop -- nothing to do. */ | |
3759 | goto next; | |
bf174226 | 3760 | |
dc5c3759 MS |
3761 | if (fetch (sd, &code->src, &rd)) /* reg8 src */ |
3762 | goto end; | |
bf174226 | 3763 | |
dc5c3759 MS |
3764 | if (fetch2 (sd, &code->op3, &ea)) /* ea dst */ |
3765 | goto end; | |
bf174226 | 3766 | |
dc5c3759 MS |
3767 | /* Left-shift the register data into position. */ |
3768 | for (tmp = bit; !(tmp & 1); tmp >>= 1) | |
3769 | rd <<= 1; | |
bf174226 | 3770 | |
dc5c3759 MS |
3771 | /* Combine it with the neighboring bits. */ |
3772 | ea = (ea & ~bit) | (rd & bit); | |
bf174226 | 3773 | |
dc5c3759 MS |
3774 | /* Put it back. */ |
3775 | if (store2 (sd, &code->op3, ea)) | |
3776 | goto end; | |
3777 | goto next; | |
3778 | ||
3779 | case O (O_CLRMAC, SN): /* clrmac */ | |
3780 | h8_set_mach (sd, 0); | |
3781 | h8_set_macl (sd, 0); | |
3782 | h8_set_macZ (sd, 1); | |
3783 | h8_set_macV (sd, 0); | |
3784 | h8_set_macN (sd, 0); | |
3785 | goto next; | |
3786 | ||
3787 | case O (O_STMAC, SL): /* stmac, 260 */ | |
3788 | switch (code->src.type) { | |
3789 | case X (OP_MACH, SL): | |
3790 | res = h8_get_mach (sd); | |
3791 | if (res & 0x200) /* sign extend */ | |
3792 | res |= 0xfffffc00; | |
3793 | break; | |
3794 | case X (OP_MACL, SL): | |
3795 | res = h8_get_macl (sd); | |
3796 | break; | |
3797 | default: goto illegal; | |
bf174226 | 3798 | } |
dc5c3759 MS |
3799 | nz = !h8_get_macZ (sd); |
3800 | n = h8_get_macN (sd); | |
3801 | v = h8_get_macV (sd); | |
3802 | ||
3803 | if (store (sd, &code->dst, res)) | |
3804 | goto end; | |
3805 | ||
bf174226 V |
3806 | goto next; |
3807 | ||
dc5c3759 MS |
3808 | case O (O_LDMAC, SL): /* ldmac, 179 */ |
3809 | if (fetch (sd, &code->src, &rd)) | |
3810 | goto end; | |
bf174226 | 3811 | |
dc5c3759 MS |
3812 | switch (code->dst.type) { |
3813 | case X (OP_MACH, SL): | |
3814 | rd &= 0x3ff; /* Truncate to 10 bits */ | |
3815 | h8_set_mach (sd, rd); | |
3816 | break; | |
3817 | case X (OP_MACL, SL): | |
3818 | h8_set_macl (sd, rd); | |
3819 | break; | |
3820 | default: goto illegal; | |
3821 | } | |
3822 | h8_set_macV (sd, 0); | |
3823 | goto next; | |
bf174226 | 3824 | |
dc5c3759 MS |
3825 | case O (O_MAC, SW): |
3826 | if (fetch (sd, &code->src, &rd) || | |
3827 | fetch (sd, &code->dst, &res)) | |
3828 | goto end; | |
bf174226 | 3829 | |
dc5c3759 MS |
3830 | /* Ye gods, this is non-portable! |
3831 | However, the existing mul/div code is similar. */ | |
3832 | res = SEXTSHORT (res) * SEXTSHORT (rd); | |
bf174226 | 3833 | |
dc5c3759 MS |
3834 | if (h8_get_macS (sd)) /* Saturating mode */ |
3835 | { | |
3836 | long long mac = h8_get_macl (sd); | |
bf174226 | 3837 | |
dc5c3759 MS |
3838 | if (mac & 0x80000000) /* sign extend */ |
3839 | mac |= 0xffffffff00000000LL; | |
bf174226 | 3840 | |
dc5c3759 MS |
3841 | mac += res; |
3842 | if (mac > 0x7fffffff || mac < 0xffffffff80000000LL) | |
3843 | h8_set_macV (sd, 1); | |
3844 | h8_set_macZ (sd, (mac == 0)); | |
3845 | h8_set_macN (sd, (mac < 0)); | |
3846 | h8_set_macl (sd, (int) mac); | |
3847 | } | |
3848 | else /* "Less Saturating" mode */ | |
3849 | { | |
3850 | long long mac = h8_get_mach (sd); | |
3851 | mac <<= 32; | |
3852 | mac += h8_get_macl (sd); | |
3853 | ||
3854 | if (mac & 0x20000000000LL) /* sign extend */ | |
3855 | mac |= 0xfffffc0000000000LL; | |
3856 | ||
3857 | mac += res; | |
3858 | if (mac > 0x1ffffffffffLL || | |
3859 | mac < (long long) 0xfffffe0000000000LL) | |
3860 | h8_set_macV (sd, 1); | |
3861 | h8_set_macZ (sd, (mac == 0)); | |
3862 | h8_set_macN (sd, (mac < 0)); | |
3863 | h8_set_macl (sd, (int) mac); | |
3864 | mac >>= 32; | |
3865 | h8_set_mach (sd, (int) (mac & 0x3ff)); | |
3866 | } | |
bf174226 V |
3867 | goto next; |
3868 | ||
dc5c3759 MS |
3869 | case O (O_MULS, SW): /* muls.w */ |
3870 | if (fetch (sd, &code->src, &ea) || | |
3871 | fetch (sd, &code->dst, &rd)) | |
3872 | goto end; | |
bf174226 | 3873 | |
e073c474 | 3874 | ea = SEXTSHORT (ea); |
dc5c3759 MS |
3875 | res = SEXTSHORT (ea * SEXTSHORT (rd)); |
3876 | ||
3877 | n = res & 0x8000; | |
3878 | nz = res & 0xffff; | |
3879 | if (store (sd, &code->dst, res)) | |
3880 | goto end; | |
bf174226 | 3881 | |
bf174226 V |
3882 | goto next; |
3883 | ||
dc5c3759 MS |
3884 | case O (O_MULS, SL): /* muls.l */ |
3885 | if (fetch (sd, &code->src, &ea) || | |
3886 | fetch (sd, &code->dst, &rd)) | |
3887 | goto end; | |
bf174226 | 3888 | |
dc5c3759 | 3889 | res = ea * rd; |
bf174226 | 3890 | |
dc5c3759 MS |
3891 | n = res & 0x80000000; |
3892 | nz = res & 0xffffffff; | |
3893 | if (store (sd, &code->dst, res)) | |
3894 | goto end; | |
bf174226 V |
3895 | goto next; |
3896 | ||
dc5c3759 MS |
3897 | case O (O_MULSU, SL): /* muls/u.l */ |
3898 | if (fetch (sd, &code->src, &ea) || | |
3899 | fetch (sd, &code->dst, &rd)) | |
3900 | goto end; | |
bf174226 | 3901 | |
dc5c3759 MS |
3902 | /* Compute upper 32 bits of the 64-bit result. */ |
3903 | res = (((long long) ea) * ((long long) rd)) >> 32; | |
bf174226 | 3904 | |
dc5c3759 MS |
3905 | n = res & 0x80000000; |
3906 | nz = res & 0xffffffff; | |
3907 | if (store (sd, &code->dst, res)) | |
3908 | goto end; | |
3909 | goto next; | |
bf174226 | 3910 | |
dc5c3759 MS |
3911 | case O (O_MULU, SW): /* mulu.w */ |
3912 | if (fetch (sd, &code->src, &ea) || | |
3913 | fetch (sd, &code->dst, &rd)) | |
3914 | goto end; | |
bf174226 | 3915 | |
dc5c3759 MS |
3916 | res = UEXTSHORT ((UEXTSHORT (ea) * UEXTSHORT (rd))); |
3917 | ||
3918 | /* Don't set Z or N. */ | |
3919 | if (store (sd, &code->dst, res)) | |
3920 | goto end; | |
bf174226 | 3921 | |
bf174226 V |
3922 | goto next; |
3923 | ||
dc5c3759 MS |
3924 | case O (O_MULU, SL): /* mulu.l */ |
3925 | if (fetch (sd, &code->src, &ea) || | |
3926 | fetch (sd, &code->dst, &rd)) | |
3927 | goto end; | |
bf174226 | 3928 | |
dc5c3759 | 3929 | res = ea * rd; |
bf174226 | 3930 | |
dc5c3759 MS |
3931 | /* Don't set Z or N. */ |
3932 | if (store (sd, &code->dst, res)) | |
3933 | goto end; | |
bf174226 | 3934 | |
dc5c3759 | 3935 | goto next; |
bf174226 | 3936 | |
dc5c3759 MS |
3937 | case O (O_MULUU, SL): /* mulu/u.l */ |
3938 | if (fetch (sd, &code->src, &ea) || | |
3939 | fetch (sd, &code->dst, &rd)) | |
3940 | goto end; | |
bf174226 | 3941 | |
dc5c3759 MS |
3942 | /* Compute upper 32 bits of the 64-bit result. */ |
3943 | res = (((unsigned long long) (unsigned) ea) * | |
3944 | ((unsigned long long) (unsigned) rd)) >> 32; | |
bf174226 | 3945 | |
dc5c3759 MS |
3946 | /* Don't set Z or N. */ |
3947 | if (store (sd, &code->dst, res)) | |
3948 | goto end; | |
bf174226 | 3949 | |
dc5c3759 | 3950 | goto next; |
bf174226 | 3951 | |
dc5c3759 MS |
3952 | case O (O_MULXS, SB): /* mulxs.b */ |
3953 | if (fetch (sd, &code->src, &ea) || | |
3954 | fetch (sd, &code->dst, &rd)) | |
3955 | goto end; | |
bf174226 | 3956 | |
e073c474 | 3957 | ea = SEXTCHAR (ea); |
dc5c3759 MS |
3958 | res = ea * SEXTCHAR (rd); |
3959 | ||
3960 | n = res & 0x8000; | |
3961 | nz = res & 0xffff; | |
3962 | if (store (sd, &code->dst, res)) | |
3963 | goto end; | |
bf174226 | 3964 | |
bf174226 | 3965 | goto next; |
bf174226 | 3966 | |
dc5c3759 MS |
3967 | case O (O_MULXS, SW): /* mulxs.w */ |
3968 | if (fetch (sd, &code->src, &ea) || | |
3969 | fetch (sd, &code->dst, &rd)) | |
c906108c SS |
3970 | goto end; |
3971 | ||
e073c474 | 3972 | ea = SEXTSHORT (ea); |
dc5c3759 | 3973 | res = ea * SEXTSHORT (rd & 0xffff); |
c906108c | 3974 | |
dc5c3759 MS |
3975 | n = res & 0x80000000; |
3976 | nz = res & 0xffffffff; | |
3977 | if (store (sd, &code->dst, res)) | |
3978 | goto end; | |
3979 | ||
3980 | goto next; | |
c906108c | 3981 | |
dc5c3759 MS |
3982 | case O (O_MULXU, SB): /* mulxu.b */ |
3983 | if (fetch (sd, &code->src, &ea) || | |
3984 | fetch (sd, &code->dst, &rd)) | |
c906108c | 3985 | goto end; |
c906108c | 3986 | |
dc5c3759 | 3987 | res = UEXTCHAR (ea) * UEXTCHAR (rd); |
c906108c | 3988 | |
dc5c3759 MS |
3989 | if (store (sd, &code->dst, res)) |
3990 | goto end; | |
c906108c | 3991 | |
dc5c3759 | 3992 | goto next; |
c906108c | 3993 | |
dc5c3759 MS |
3994 | case O (O_MULXU, SW): /* mulxu.w */ |
3995 | if (fetch (sd, &code->src, &ea) || | |
3996 | fetch (sd, &code->dst, &rd)) | |
c906108c | 3997 | goto end; |
c906108c | 3998 | |
dc5c3759 | 3999 | res = UEXTSHORT (ea) * UEXTSHORT (rd); |
c906108c | 4000 | |
dc5c3759 MS |
4001 | if (store (sd, &code->dst, res)) |
4002 | goto end; | |
4003 | ||
4004 | goto next; | |
c906108c | 4005 | |
9f70f8ec MS |
4006 | case O (O_TAS, SB): /* tas (test and set) */ |
4007 | if (!h8300sxmode) /* h8sx can use any register. */ | |
4008 | switch (code->src.reg) | |
4009 | { | |
4010 | case R0_REGNUM: | |
4011 | case R1_REGNUM: | |
4012 | case R4_REGNUM: | |
4013 | case R5_REGNUM: | |
4014 | break; | |
4015 | default: | |
4016 | goto illegal; | |
4017 | } | |
4018 | ||
dc5c3759 MS |
4019 | if (fetch (sd, &code->src, &res)) |
4020 | goto end; | |
4021 | if (store (sd, &code->src, res | 0x80)) | |
4022 | goto end; | |
4023 | ||
6147b1f6 | 4024 | goto just_flags_log8; |
c906108c | 4025 | |
dc5c3759 MS |
4026 | case O (O_DIVU, SW): /* divu.w */ |
4027 | if (fetch (sd, &code->src, &ea) || | |
4028 | fetch (sd, &code->dst, &rd)) | |
4029 | goto end; | |
c906108c | 4030 | |
dc5c3759 MS |
4031 | n = ea & 0x8000; |
4032 | nz = ea & 0xffff; | |
4033 | if (ea) | |
4034 | res = (unsigned) (UEXTSHORT (rd) / UEXTSHORT (ea)); | |
4035 | else | |
4036 | res = 0; | |
c906108c | 4037 | |
dc5c3759 MS |
4038 | if (store (sd, &code->dst, res)) |
4039 | goto end; | |
4040 | goto next; | |
c906108c | 4041 | |
dc5c3759 MS |
4042 | case O (O_DIVU, SL): /* divu.l */ |
4043 | if (fetch (sd, &code->src, &ea) || | |
4044 | fetch (sd, &code->dst, &rd)) | |
4045 | goto end; | |
4046 | ||
4047 | n = ea & 0x80000000; | |
4048 | nz = ea & 0xffffffff; | |
4049 | if (ea) | |
4050 | res = (unsigned) rd / ea; | |
4051 | else | |
4052 | res = 0; | |
4053 | ||
4054 | if (store (sd, &code->dst, res)) | |
4055 | goto end; | |
4056 | goto next; | |
4057 | ||
4058 | case O (O_DIVS, SW): /* divs.w */ | |
4059 | if (fetch (sd, &code->src, &ea) || | |
4060 | fetch (sd, &code->dst, &rd)) | |
4061 | goto end; | |
4062 | ||
dc5c3759 MS |
4063 | if (ea) |
4064 | { | |
4065 | res = SEXTSHORT (rd) / SEXTSHORT (ea); | |
4066 | nz = 1; | |
4067 | } | |
4068 | else | |
4069 | { | |
4070 | res = 0; | |
4071 | nz = 0; | |
4072 | } | |
4073 | ||
4074 | n = res & 0x8000; | |
4075 | if (store (sd, &code->dst, res)) | |
4076 | goto end; | |
4077 | goto next; | |
4078 | ||
4079 | case O (O_DIVS, SL): /* divs.l */ | |
4080 | if (fetch (sd, &code->src, &ea) || | |
4081 | fetch (sd, &code->dst, &rd)) | |
4082 | goto end; | |
4083 | ||
dc5c3759 MS |
4084 | if (ea) |
4085 | { | |
4086 | res = rd / ea; | |
4087 | nz = 1; | |
4088 | } | |
4089 | else | |
4090 | { | |
4091 | res = 0; | |
4092 | nz = 0; | |
4093 | } | |
4094 | ||
4095 | n = res & 0x80000000; | |
4096 | if (store (sd, &code->dst, res)) | |
4097 | goto end; | |
4098 | goto next; | |
4099 | ||
4100 | case O (O_DIVXU, SB): /* divxu.b */ | |
4101 | if (fetch (sd, &code->src, &ea) || | |
4102 | fetch (sd, &code->dst, &rd)) | |
4103 | goto end; | |
4104 | ||
4105 | rd = UEXTSHORT (rd); | |
4106 | ea = UEXTCHAR (ea); | |
4107 | ||
4108 | n = ea & 0x80; | |
4109 | nz = ea & 0xff; | |
4110 | if (ea) | |
4111 | { | |
4112 | tmp = (unsigned) rd % ea; | |
4113 | res = (unsigned) rd / ea; | |
4114 | } | |
4115 | else | |
4116 | { | |
4117 | tmp = 0; | |
4118 | res = 0; | |
4119 | } | |
4120 | ||
9f70f8ec | 4121 | if (store (sd, &code->dst, (res & 0xff) | (tmp << 8))) |
dc5c3759 MS |
4122 | goto end; |
4123 | goto next; | |
4124 | ||
4125 | case O (O_DIVXU, SW): /* divxu.w */ | |
4126 | if (fetch (sd, &code->src, &ea) || | |
4127 | fetch (sd, &code->dst, &rd)) | |
4128 | goto end; | |
4129 | ||
4130 | ea = UEXTSHORT (ea); | |
4131 | ||
4132 | n = ea & 0x8000; | |
4133 | nz = ea & 0xffff; | |
4134 | if (ea) | |
4135 | { | |
4136 | tmp = (unsigned) rd % ea; | |
4137 | res = (unsigned) rd / ea; | |
4138 | } | |
4139 | else | |
4140 | { | |
4141 | tmp = 0; | |
4142 | res = 0; | |
4143 | } | |
4144 | ||
4145 | if (store (sd, &code->dst, (res & 0xffff) | (tmp << 16))) | |
4146 | goto end; | |
4147 | goto next; | |
4148 | ||
4149 | case O (O_DIVXS, SB): /* divxs.b */ | |
4150 | if (fetch (sd, &code->src, &ea) || | |
4151 | fetch (sd, &code->dst, &rd)) | |
4152 | goto end; | |
4153 | ||
4154 | rd = SEXTSHORT (rd); | |
e073c474 | 4155 | ea = SEXTCHAR (ea); |
dc5c3759 MS |
4156 | |
4157 | if (ea) | |
4158 | { | |
4159 | tmp = (int) rd % (int) ea; | |
4160 | res = (int) rd / (int) ea; | |
4161 | nz = 1; | |
4162 | } | |
4163 | else | |
4164 | { | |
4165 | tmp = 0; | |
4166 | res = 0; | |
4167 | nz = 0; | |
4168 | } | |
4169 | ||
4170 | n = res & 0x8000; | |
4171 | if (store (sd, &code->dst, (res & 0xff) | (tmp << 8))) | |
4172 | goto end; | |
4173 | goto next; | |
4174 | ||
4175 | case O (O_DIVXS, SW): /* divxs.w */ | |
4176 | if (fetch (sd, &code->src, &ea) || | |
4177 | fetch (sd, &code->dst, &rd)) | |
4178 | goto end; | |
4179 | ||
e073c474 | 4180 | ea = SEXTSHORT (ea); |
dc5c3759 MS |
4181 | |
4182 | if (ea) | |
4183 | { | |
4184 | tmp = (int) rd % (int) ea; | |
4185 | res = (int) rd / (int) ea; | |
4186 | nz = 1; | |
4187 | } | |
4188 | else | |
4189 | { | |
4190 | tmp = 0; | |
4191 | res = 0; | |
4192 | nz = 0; | |
4193 | } | |
4194 | ||
4195 | n = res & 0x80000000; | |
4196 | if (store (sd, &code->dst, (res & 0xffff) | (tmp << 16))) | |
4197 | goto end; | |
4198 | goto next; | |
4199 | ||
4200 | case O (O_EXTS, SW): /* exts.w, signed extend */ | |
4201 | if (fetch2 (sd, &code->dst, &rd)) | |
4202 | goto end; | |
c906108c | 4203 | ea = rd & 0x80 ? -256 : 0; |
dc5c3759 | 4204 | res = (rd & 0xff) + ea; |
c906108c | 4205 | goto log16; |
dc5c3759 MS |
4206 | |
4207 | case O (O_EXTS, SL): /* exts.l, signed extend */ | |
4208 | if (fetch2 (sd, &code->dst, &rd)) | |
4209 | goto end; | |
4210 | if (code->src.type == X (OP_IMM, SL)) | |
4211 | { | |
4212 | if (fetch (sd, &code->src, &ea)) | |
4213 | goto end; | |
4214 | ||
4215 | if (ea == 2) /* exts.l #2, nn */ | |
4216 | { | |
4217 | /* Sign-extend from 8-bit to 32-bit. */ | |
4218 | ea = rd & 0x80 ? -256 : 0; | |
4219 | res = (rd & 0xff) + ea; | |
4220 | goto log32; | |
4221 | } | |
4222 | } | |
4223 | /* Sign-extend from 16-bit to 32-bit. */ | |
c906108c | 4224 | ea = rd & 0x8000 ? -65536 : 0; |
dc5c3759 | 4225 | res = (rd & 0xffff) + ea; |
c906108c | 4226 | goto log32; |
dc5c3759 MS |
4227 | |
4228 | case O (O_EXTU, SW): /* extu.w, unsigned extend */ | |
4229 | if (fetch2 (sd, &code->dst, &rd)) | |
4230 | goto end; | |
c906108c | 4231 | ea = 0; |
dc5c3759 | 4232 | res = (rd & 0xff) + ea; |
c906108c | 4233 | goto log16; |
dc5c3759 MS |
4234 | |
4235 | case O (O_EXTU, SL): /* extu.l, unsigned extend */ | |
4236 | if (fetch2 (sd, &code->dst, &rd)) | |
4237 | goto end; | |
4238 | if (code->src.type == X (OP_IMM, SL)) | |
4239 | { | |
4240 | if (fetch (sd, &code->src, &ea)) | |
4241 | goto end; | |
4242 | ||
4243 | if (ea == 2) /* extu.l #2, nn */ | |
4244 | { | |
4245 | /* Zero-extend from 8-bit to 32-bit. */ | |
4246 | ea = 0; | |
4247 | res = (rd & 0xff) + ea; | |
4248 | goto log32; | |
4249 | } | |
4250 | } | |
4251 | /* Zero-extend from 16-bit to 32-bit. */ | |
c906108c | 4252 | ea = 0; |
dc5c3759 | 4253 | res = (rd & 0xffff) + ea; |
c906108c SS |
4254 | goto log32; |
4255 | ||
dc5c3759 | 4256 | case O (O_NOP, SN): /* nop */ |
c906108c SS |
4257 | goto next; |
4258 | ||
dc5c3759 | 4259 | case O (O_STM, SL): /* stm, store to memory */ |
c906108c SS |
4260 | { |
4261 | int nregs, firstreg, i; | |
4262 | ||
4263 | nregs = GET_MEMORY_B (pc + 1); | |
4264 | nregs >>= 4; | |
4265 | nregs &= 0xf; | |
dc5c3759 | 4266 | firstreg = code->src.reg; |
c906108c SS |
4267 | firstreg &= 0xf; |
4268 | for (i = firstreg; i <= firstreg + nregs; i++) | |
4269 | { | |
dc5c3759 MS |
4270 | h8_set_reg (sd, SP_REGNUM, h8_get_reg (sd, SP_REGNUM) - 4); |
4271 | SET_MEMORY_L (h8_get_reg (sd, SP_REGNUM), h8_get_reg (sd, i)); | |
c906108c SS |
4272 | } |
4273 | } | |
4274 | goto next; | |
4275 | ||
dc5c3759 | 4276 | case O (O_LDM, SL): /* ldm, load from memory */ |
9f70f8ec MS |
4277 | case O (O_RTEL, SN): /* rte/l, ldm plus rte */ |
4278 | case O (O_RTSL, SN): /* rts/l, ldm plus rts */ | |
c906108c SS |
4279 | { |
4280 | int nregs, firstreg, i; | |
4281 | ||
9f70f8ec MS |
4282 | nregs = ((GET_MEMORY_B (pc + 1) >> 4) & 0xf); |
4283 | firstreg = code->dst.reg & 0xf; | |
c906108c SS |
4284 | for (i = firstreg; i >= firstreg - nregs; i--) |
4285 | { | |
dc5c3759 MS |
4286 | h8_set_reg (sd, i, GET_MEMORY_L (h8_get_reg (sd, SP_REGNUM))); |
4287 | h8_set_reg (sd, SP_REGNUM, h8_get_reg (sd, SP_REGNUM) + 4); | |
c906108c SS |
4288 | } |
4289 | } | |
9f70f8ec MS |
4290 | switch (code->opcode) { |
4291 | case O (O_RTEL, SN): | |
4292 | goto rte; | |
4293 | case O (O_RTSL, SN): | |
4294 | goto rts; | |
4295 | case O (O_LDM, SL): | |
4296 | goto next; | |
4297 | default: | |
4298 | goto illegal; | |
4299 | } | |
c906108c | 4300 | |
b7f97e9c MS |
4301 | case O (O_DAA, SB): |
4302 | /* Decimal Adjust Addition. This is for BCD arithmetic. */ | |
9f70f8ec | 4303 | res = GET_B_REG (code->src.reg); /* FIXME fetch? */ |
dc5c3759 MS |
4304 | if (!c && (0 <= (res >> 4) && (res >> 4) <= 9) && |
4305 | !h && (0 <= (res & 0xf) && (res & 0xf) <= 9)) | |
b7f97e9c | 4306 | res = res; /* Value added == 0. */ |
dc5c3759 MS |
4307 | else if (!c && (0 <= (res >> 4) && (res >> 4) <= 8) && |
4308 | !h && (10 <= (res & 0xf) && (res & 0xf) <= 15)) | |
b7f97e9c | 4309 | res = res + 0x6; /* Value added == 6. */ |
dc5c3759 MS |
4310 | else if (!c && (0 <= (res >> 4) && (res >> 4) <= 9) && |
4311 | h && (0 <= (res & 0xf) && (res & 0xf) <= 3)) | |
b7f97e9c | 4312 | res = res + 0x6; /* Value added == 6. */ |
dc5c3759 MS |
4313 | else if (!c && (10 <= (res >> 4) && (res >> 4) <= 15) && |
4314 | !h && (0 <= (res & 0xf) && (res & 0xf) <= 9)) | |
4315 | res = res + 0x60; /* Value added == 60. */ | |
4316 | else if (!c && (9 <= (res >> 4) && (res >> 4) <= 15) && | |
4317 | !h && (10 <= (res & 0xf) && (res & 0xf) <= 15)) | |
4318 | res = res + 0x66; /* Value added == 66. */ | |
4319 | else if (!c && (10 <= (res >> 4) && (res >> 4) <= 15) && | |
4320 | h && (0 <= (res & 0xf) && (res & 0xf) <= 3)) | |
4321 | res = res + 0x66; /* Value added == 66. */ | |
4322 | else if ( c && (1 <= (res >> 4) && (res >> 4) <= 2) && | |
4323 | !h && (0 <= (res & 0xf) && (res & 0xf) <= 9)) | |
b7f97e9c | 4324 | res = res + 0x60; /* Value added == 60. */ |
dc5c3759 MS |
4325 | else if ( c && (1 <= (res >> 4) && (res >> 4) <= 2) && |
4326 | !h && (10 <= (res & 0xf) && (res & 0xf) <= 15)) | |
b7f97e9c | 4327 | res = res + 0x66; /* Value added == 66. */ |
dc5c3759 MS |
4328 | else if (c && (1 <= (res >> 4) && (res >> 4) <= 3) && |
4329 | h && (0 <= (res & 0xf) && (res & 0xf) <= 3)) | |
b7f97e9c | 4330 | res = res + 0x66; /* Value added == 66. */ |
b7f97e9c MS |
4331 | |
4332 | goto alu8; | |
4333 | ||
4334 | case O (O_DAS, SB): | |
4335 | /* Decimal Adjust Subtraction. This is for BCD arithmetic. */ | |
4336 | res = GET_B_REG (code->src.reg); /* FIXME fetch, fetch2... */ | |
dc5c3759 MS |
4337 | if (!c && (0 <= (res >> 4) && (res >> 4) <= 9) && |
4338 | !h && (0 <= (res & 0xf) && (res & 0xf) <= 9)) | |
b7f97e9c | 4339 | res = res; /* Value added == 0. */ |
dc5c3759 MS |
4340 | else if (!c && (0 <= (res >> 4) && (res >> 4) <= 8) && |
4341 | h && (6 <= (res & 0xf) && (res & 0xf) <= 15)) | |
b7f97e9c | 4342 | res = res + 0xfa; /* Value added == 0xfa. */ |
dc5c3759 MS |
4343 | else if ( c && (7 <= (res >> 4) && (res >> 4) <= 15) && |
4344 | !h && (0 <= (res & 0xf) && (res & 0xf) <= 9)) | |
b7f97e9c | 4345 | res = res + 0xa0; /* Value added == 0xa0. */ |
dc5c3759 MS |
4346 | else if (c && (6 <= (res >> 4) && (res >> 4) <= 15) && |
4347 | h && (6 <= (res & 0xf) && (res & 0xf) <= 15)) | |
b7f97e9c MS |
4348 | res = res + 0x9a; /* Value added == 0x9a. */ |
4349 | ||
4350 | goto alu8; | |
4351 | ||
c906108c | 4352 | default: |
d0fe2f7e | 4353 | illegal: |
dc5c3759 | 4354 | sim_engine_set_run_state (sd, sim_stopped, SIGILL); |
c906108c SS |
4355 | goto end; |
4356 | ||
4357 | } | |
dc5c3759 MS |
4358 | |
4359 | (*sim_callback->printf_filtered) (sim_callback, | |
4360 | "sim_resume: internal error.\n"); | |
4361 | sim_engine_set_run_state (sd, sim_stopped, SIGILL); | |
4362 | goto end; | |
c906108c SS |
4363 | |
4364 | setc: | |
dc5c3759 MS |
4365 | if (code->dst.type == X (OP_CCR, SB) || |
4366 | code->dst.type == X (OP_CCR, SW)) | |
c3f4437e | 4367 | { |
dc5c3759 | 4368 | h8_set_ccr (sd, res); |
9f70f8ec | 4369 | GETSR (sd); |
c3f4437e | 4370 | } |
dc5c3759 MS |
4371 | else if (h8300smode && |
4372 | (code->dst.type == X (OP_EXR, SB) || | |
4373 | code->dst.type == X (OP_EXR, SW))) | |
c3f4437e | 4374 | { |
dc5c3759 MS |
4375 | h8_set_exr (sd, res); |
4376 | if (h8300smode) /* Get exr. */ | |
4377 | { | |
4378 | trace = (h8_get_exr (sd) >> 7) & 1; | |
4379 | intMask = h8_get_exr (sd) & 7; | |
4380 | } | |
c3f4437e | 4381 | } |
fc974602 | 4382 | else |
c3f4437e | 4383 | goto illegal; |
fc974602 | 4384 | |
c906108c SS |
4385 | goto next; |
4386 | ||
4387 | condtrue: | |
4388 | /* When a branch works */ | |
dc5c3759 MS |
4389 | if (fetch (sd, &code->src, &res)) |
4390 | goto end; | |
4391 | if (res & 1) /* bad address */ | |
4392 | goto illegal; | |
4393 | pc = code->next_pc + res; | |
c906108c SS |
4394 | goto end; |
4395 | ||
4396 | /* Set the cond codes from res */ | |
4397 | bitop: | |
4398 | ||
4399 | /* Set the flags after an 8 bit inc/dec operation */ | |
4400 | just_flags_inc8: | |
4401 | n = res & 0x80; | |
4402 | nz = res & 0xff; | |
4403 | v = (rd & 0x7f) == 0x7f; | |
4404 | goto next; | |
4405 | ||
c906108c SS |
4406 | /* Set the flags after an 16 bit inc/dec operation */ |
4407 | just_flags_inc16: | |
4408 | n = res & 0x8000; | |
4409 | nz = res & 0xffff; | |
4410 | v = (rd & 0x7fff) == 0x7fff; | |
4411 | goto next; | |
4412 | ||
c906108c SS |
4413 | /* Set the flags after an 32 bit inc/dec operation */ |
4414 | just_flags_inc32: | |
4415 | n = res & 0x80000000; | |
4416 | nz = res & 0xffffffff; | |
4417 | v = (rd & 0x7fffffff) == 0x7fffffff; | |
4418 | goto next; | |
4419 | ||
c906108c SS |
4420 | shift8: |
4421 | /* Set flags after an 8 bit shift op, carry,overflow set in insn */ | |
4422 | n = (rd & 0x80); | |
4423 | nz = rd & 0xff; | |
dc5c3759 MS |
4424 | if (store2 (sd, &code->dst, rd)) |
4425 | goto end; | |
c906108c SS |
4426 | goto next; |
4427 | ||
4428 | shift16: | |
4429 | /* Set flags after an 16 bit shift op, carry,overflow set in insn */ | |
4430 | n = (rd & 0x8000); | |
4431 | nz = rd & 0xffff; | |
dc5c3759 MS |
4432 | if (store2 (sd, &code->dst, rd)) |
4433 | goto end; | |
c906108c SS |
4434 | goto next; |
4435 | ||
4436 | shift32: | |
4437 | /* Set flags after an 32 bit shift op, carry,overflow set in insn */ | |
4438 | n = (rd & 0x80000000); | |
4439 | nz = rd & 0xffffffff; | |
dc5c3759 MS |
4440 | if (store2 (sd, &code->dst, rd)) |
4441 | goto end; | |
c906108c SS |
4442 | goto next; |
4443 | ||
4444 | log32: | |
dc5c3759 MS |
4445 | if (store2 (sd, &code->dst, res)) |
4446 | goto end; | |
4447 | ||
c906108c SS |
4448 | just_flags_log32: |
4449 | /* flags after a 32bit logical operation */ | |
4450 | n = res & 0x80000000; | |
4451 | nz = res & 0xffffffff; | |
4452 | v = 0; | |
4453 | goto next; | |
4454 | ||
4455 | log16: | |
dc5c3759 MS |
4456 | if (store2 (sd, &code->dst, res)) |
4457 | goto end; | |
4458 | ||
c906108c SS |
4459 | just_flags_log16: |
4460 | /* flags after a 16bit logical operation */ | |
4461 | n = res & 0x8000; | |
4462 | nz = res & 0xffff; | |
4463 | v = 0; | |
4464 | goto next; | |
4465 | ||
c906108c | 4466 | log8: |
dc5c3759 MS |
4467 | if (store2 (sd, &code->dst, res)) |
4468 | goto end; | |
4469 | ||
c906108c SS |
4470 | just_flags_log8: |
4471 | n = res & 0x80; | |
4472 | nz = res & 0xff; | |
4473 | v = 0; | |
4474 | goto next; | |
4475 | ||
4476 | alu8: | |
dc5c3759 MS |
4477 | if (store2 (sd, &code->dst, res)) |
4478 | goto end; | |
4479 | ||
c906108c SS |
4480 | just_flags_alu8: |
4481 | n = res & 0x80; | |
4482 | nz = res & 0xff; | |
4483 | c = (res & 0x100); | |
4484 | switch (code->opcode / 4) | |
4485 | { | |
4486 | case O_ADD: | |
dc5c3759 | 4487 | case O_ADDX: |
c906108c SS |
4488 | v = ((rd & 0x80) == (ea & 0x80) |
4489 | && (rd & 0x80) != (res & 0x80)); | |
4490 | break; | |
4491 | case O_SUB: | |
dc5c3759 | 4492 | case O_SUBX: |
c906108c SS |
4493 | case O_CMP: |
4494 | v = ((rd & 0x80) != (-ea & 0x80) | |
4495 | && (rd & 0x80) != (res & 0x80)); | |
4496 | break; | |
4497 | case O_NEG: | |
4498 | v = (rd == 0x80); | |
4499 | break; | |
dc5c3759 MS |
4500 | case O_DAA: |
4501 | case O_DAS: | |
4502 | break; /* No effect on v flag. */ | |
c906108c SS |
4503 | } |
4504 | goto next; | |
4505 | ||
4506 | alu16: | |
dc5c3759 MS |
4507 | if (store2 (sd, &code->dst, res)) |
4508 | goto end; | |
4509 | ||
c906108c SS |
4510 | just_flags_alu16: |
4511 | n = res & 0x8000; | |
4512 | nz = res & 0xffff; | |
4513 | c = (res & 0x10000); | |
4514 | switch (code->opcode / 4) | |
4515 | { | |
4516 | case O_ADD: | |
dc5c3759 | 4517 | case O_ADDX: |
c906108c SS |
4518 | v = ((rd & 0x8000) == (ea & 0x8000) |
4519 | && (rd & 0x8000) != (res & 0x8000)); | |
4520 | break; | |
4521 | case O_SUB: | |
dc5c3759 | 4522 | case O_SUBX: |
c906108c SS |
4523 | case O_CMP: |
4524 | v = ((rd & 0x8000) != (-ea & 0x8000) | |
4525 | && (rd & 0x8000) != (res & 0x8000)); | |
4526 | break; | |
4527 | case O_NEG: | |
4528 | v = (rd == 0x8000); | |
4529 | break; | |
4530 | } | |
4531 | goto next; | |
4532 | ||
4533 | alu32: | |
dc5c3759 MS |
4534 | if (store2 (sd, &code->dst, res)) |
4535 | goto end; | |
4536 | ||
c906108c SS |
4537 | just_flags_alu32: |
4538 | n = res & 0x80000000; | |
4539 | nz = res & 0xffffffff; | |
4540 | switch (code->opcode / 4) | |
4541 | { | |
4542 | case O_ADD: | |
dc5c3759 | 4543 | case O_ADDX: |
c906108c SS |
4544 | v = ((rd & 0x80000000) == (ea & 0x80000000) |
4545 | && (rd & 0x80000000) != (res & 0x80000000)); | |
dc5c3759 MS |
4546 | c = ((unsigned) res < (unsigned) rd) || |
4547 | ((unsigned) res < (unsigned) ea); | |
c906108c SS |
4548 | break; |
4549 | case O_SUB: | |
dc5c3759 | 4550 | case O_SUBX: |
c906108c SS |
4551 | case O_CMP: |
4552 | v = ((rd & 0x80000000) != (-ea & 0x80000000) | |
4553 | && (rd & 0x80000000) != (res & 0x80000000)); | |
4554 | c = (unsigned) rd < (unsigned) -ea; | |
4555 | break; | |
4556 | case O_NEG: | |
4557 | v = (rd == 0x80000000); | |
4558 | c = res != 0; | |
4559 | break; | |
4560 | } | |
4561 | goto next; | |
4562 | ||
dc5c3759 MS |
4563 | next: |
4564 | if ((res = h8_get_delayed_branch (sd)) != 0) | |
4565 | { | |
4566 | pc = res; | |
4567 | h8_set_delayed_branch (sd, 0); | |
4568 | } | |
4569 | else | |
4570 | pc = code->next_pc; | |
c906108c SS |
4571 | |
4572 | end: | |
dc5c3759 | 4573 | |
c906108c SS |
4574 | if (--poll_count < 0) |
4575 | { | |
7a292a7a | 4576 | poll_count = POLL_QUIT_INTERVAL; |
c906108c SS |
4577 | if ((*sim_callback->poll_quit) != NULL |
4578 | && (*sim_callback->poll_quit) (sim_callback)) | |
dc5c3759 | 4579 | sim_engine_set_run_state (sd, sim_stopped, SIGINT); |
c906108c | 4580 | } |
dc5c3759 MS |
4581 | sim_engine_get_run_state (sd, &reason, &sigrc); |
4582 | } while (reason == sim_running); | |
c906108c | 4583 | |
dc5c3759 MS |
4584 | h8_set_ticks (sd, h8_get_ticks (sd) + get_now () - tick_start); |
4585 | h8_set_cycles (sd, h8_get_cycles (sd) + cycles); | |
4586 | h8_set_insts (sd, h8_get_insts (sd) + insts); | |
4587 | h8_set_pc (sd, pc); | |
4588 | BUILDSR (sd); | |
4589 | ||
4590 | if (h8300smode) | |
4591 | h8_set_exr (sd, (trace<<7) | intMask); | |
4592 | ||
4593 | h8_set_mask (sd, oldmask); | |
c906108c SS |
4594 | } |
4595 | ||
4596 | int | |
a4f27e3e | 4597 | sim_trace (SIM_DESC sd) |
c906108c | 4598 | { |
2ea716f6 | 4599 | /* FIXME: Unfinished. */ |
dc5c3759 MS |
4600 | (*sim_callback->printf_filtered) (sim_callback, |
4601 | "sim_trace: trace not supported.\n"); | |
4602 | return 1; /* Done. */ | |
c906108c SS |
4603 | } |
4604 | ||
4605 | int | |
5558e7e6 | 4606 | sim_write (SIM_DESC sd, SIM_ADDR addr, const unsigned char *buffer, int size) |
c906108c SS |
4607 | { |
4608 | int i; | |
4609 | ||
dc5c3759 | 4610 | init_pointers (sd); |
c906108c SS |
4611 | if (addr < 0) |
4612 | return 0; | |
4613 | for (i = 0; i < size; i++) | |
4614 | { | |
4615 | if (addr < memory_size) | |
4616 | { | |
dc5c3759 MS |
4617 | h8_set_memory (sd, addr + i, buffer[i]); |
4618 | h8_set_cache_idx (sd, addr + i, 0); | |
c906108c SS |
4619 | } |
4620 | else | |
dc5c3759 MS |
4621 | { |
4622 | h8_set_eightbit (sd, (addr + i) & 0xff, buffer[i]); | |
4623 | } | |
c906108c SS |
4624 | } |
4625 | return size; | |
4626 | } | |
4627 | ||
4628 | int | |
a4f27e3e | 4629 | sim_read (SIM_DESC sd, SIM_ADDR addr, unsigned char *buffer, int size) |
c906108c | 4630 | { |
dc5c3759 | 4631 | init_pointers (sd); |
c906108c SS |
4632 | if (addr < 0) |
4633 | return 0; | |
4634 | if (addr < memory_size) | |
dc5c3759 | 4635 | memcpy (buffer, h8_get_memory_buf (sd) + addr, size); |
c906108c | 4636 | else |
dc5c3759 | 4637 | memcpy (buffer, h8_get_eightbit_buf (sd) + (addr & 0xff), size); |
c906108c SS |
4638 | return size; |
4639 | } | |
4640 | ||
4641 | ||
c906108c | 4642 | int |
a4f27e3e | 4643 | sim_store_register (SIM_DESC sd, int rn, unsigned char *value, int length) |
c906108c SS |
4644 | { |
4645 | int longval; | |
4646 | int shortval; | |
4647 | int intval; | |
4648 | longval = (value[0] << 24) | (value[1] << 16) | (value[2] << 8) | value[3]; | |
4649 | shortval = (value[0] << 8) | (value[1]); | |
4650 | intval = h8300hmode ? longval : shortval; | |
4651 | ||
dc5c3759 | 4652 | init_pointers (sd); |
c906108c SS |
4653 | switch (rn) |
4654 | { | |
9f70f8ec | 4655 | case PC_REGNUM: |
59768597 SA |
4656 | if(h8300_normal_mode) |
4657 | h8_set_pc (sd, shortval); /* PC for Normal mode is 2 bytes */ | |
4658 | else | |
4659 | h8_set_pc (sd, intval); | |
9f70f8ec | 4660 | break; |
c906108c | 4661 | default: |
dc5c3759 MS |
4662 | (*sim_callback->printf_filtered) (sim_callback, |
4663 | "sim_store_register: bad regnum %d.\n", | |
4664 | rn); | |
c906108c SS |
4665 | case R0_REGNUM: |
4666 | case R1_REGNUM: | |
4667 | case R2_REGNUM: | |
4668 | case R3_REGNUM: | |
4669 | case R4_REGNUM: | |
4670 | case R5_REGNUM: | |
4671 | case R6_REGNUM: | |
4672 | case R7_REGNUM: | |
dc5c3759 | 4673 | h8_set_reg (sd, rn, intval); |
c906108c SS |
4674 | break; |
4675 | case CCR_REGNUM: | |
dc5c3759 | 4676 | h8_set_ccr (sd, intval); |
c906108c | 4677 | break; |
fc974602 | 4678 | case EXR_REGNUM: |
dc5c3759 | 4679 | h8_set_exr (sd, intval); |
fc974602 | 4680 | break; |
173b1c98 MS |
4681 | case SBR_REGNUM: |
4682 | h8_set_sbr (sd, intval); | |
4683 | break; | |
4684 | case VBR_REGNUM: | |
4685 | h8_set_vbr (sd, intval); | |
4686 | break; | |
4687 | case MACH_REGNUM: | |
4688 | h8_set_mach (sd, intval); | |
4689 | break; | |
4690 | case MACL_REGNUM: | |
4691 | h8_set_macl (sd, intval); | |
4692 | break; | |
c906108c | 4693 | case CYCLE_REGNUM: |
dc5c3759 | 4694 | h8_set_cycles (sd, longval); |
c906108c | 4695 | break; |
9f70f8ec | 4696 | |
c906108c | 4697 | case INST_REGNUM: |
dc5c3759 | 4698 | h8_set_insts (sd, longval); |
c906108c | 4699 | break; |
9f70f8ec | 4700 | |
c906108c | 4701 | case TICK_REGNUM: |
dc5c3759 | 4702 | h8_set_ticks (sd, longval); |
c906108c SS |
4703 | break; |
4704 | } | |
dae477fe | 4705 | return length; |
c906108c SS |
4706 | } |
4707 | ||
4708 | int | |
a4f27e3e | 4709 | sim_fetch_register (SIM_DESC sd, int rn, unsigned char *buf, int length) |
c906108c SS |
4710 | { |
4711 | int v; | |
4712 | int longreg = 0; | |
4713 | ||
dc5c3759 | 4714 | init_pointers (sd); |
c906108c | 4715 | |
d0fe2f7e | 4716 | if (!h8300smode && rn >= EXR_REGNUM) |
c3f4437e | 4717 | rn++; |
c906108c SS |
4718 | switch (rn) |
4719 | { | |
4720 | default: | |
dc5c3759 MS |
4721 | (*sim_callback->printf_filtered) (sim_callback, |
4722 | "sim_fetch_register: bad regnum %d.\n", | |
4723 | rn); | |
4724 | v = 0; | |
4725 | break; | |
3b02cf92 | 4726 | case CCR_REGNUM: |
dc5c3759 | 4727 | v = h8_get_ccr (sd); |
c906108c | 4728 | break; |
fc974602 | 4729 | case EXR_REGNUM: |
dc5c3759 | 4730 | v = h8_get_exr (sd); |
fc974602 | 4731 | break; |
3b02cf92 | 4732 | case PC_REGNUM: |
dc5c3759 | 4733 | v = h8_get_pc (sd); |
c906108c | 4734 | break; |
173b1c98 MS |
4735 | case SBR_REGNUM: |
4736 | v = h8_get_sbr (sd); | |
4737 | break; | |
4738 | case VBR_REGNUM: | |
4739 | v = h8_get_vbr (sd); | |
4740 | break; | |
4741 | case MACH_REGNUM: | |
4742 | v = h8_get_mach (sd); | |
4743 | break; | |
4744 | case MACL_REGNUM: | |
4745 | v = h8_get_macl (sd); | |
4746 | break; | |
c906108c SS |
4747 | case R0_REGNUM: |
4748 | case R1_REGNUM: | |
4749 | case R2_REGNUM: | |
4750 | case R3_REGNUM: | |
4751 | case R4_REGNUM: | |
4752 | case R5_REGNUM: | |
4753 | case R6_REGNUM: | |
4754 | case R7_REGNUM: | |
dc5c3759 | 4755 | v = h8_get_reg (sd, rn); |
c906108c | 4756 | break; |
3b02cf92 | 4757 | case CYCLE_REGNUM: |
dc5c3759 | 4758 | v = h8_get_cycles (sd); |
c906108c SS |
4759 | longreg = 1; |
4760 | break; | |
3b02cf92 | 4761 | case TICK_REGNUM: |
dc5c3759 | 4762 | v = h8_get_ticks (sd); |
c906108c SS |
4763 | longreg = 1; |
4764 | break; | |
3b02cf92 | 4765 | case INST_REGNUM: |
dc5c3759 | 4766 | v = h8_get_insts (sd); |
c906108c SS |
4767 | longreg = 1; |
4768 | break; | |
4769 | } | |
59768597 SA |
4770 | /* In Normal mode PC is 2 byte, but other registers are 4 byte */ |
4771 | if ((h8300hmode || longreg) && !(rn == PC_REGNUM && h8300_normal_mode)) | |
c906108c SS |
4772 | { |
4773 | buf[0] = v >> 24; | |
4774 | buf[1] = v >> 16; | |
4775 | buf[2] = v >> 8; | |
4776 | buf[3] = v >> 0; | |
4777 | } | |
4778 | else | |
4779 | { | |
4780 | buf[0] = v >> 8; | |
4781 | buf[1] = v; | |
4782 | } | |
4783 | return -1; | |
4784 | } | |
4785 | ||
4786 | void | |
a4f27e3e | 4787 | sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc) |
c906108c | 4788 | { |
dc5c3759 | 4789 | sim_engine_get_run_state (sd, reason, sigrc); |
c906108c SS |
4790 | } |
4791 | ||
4792 | /* FIXME: Rename to sim_set_mem_size. */ | |
4793 | ||
4794 | void | |
a4f27e3e | 4795 | sim_size (int n) |
c906108c SS |
4796 | { |
4797 | /* Memory size is fixed. */ | |
4798 | } | |
4799 | ||
dc5c3759 MS |
4800 | static void |
4801 | set_simcache_size (SIM_DESC sd, int n) | |
c906108c | 4802 | { |
dc5c3759 MS |
4803 | if (sd->sim_cache) |
4804 | free (sd->sim_cache); | |
c906108c SS |
4805 | if (n < 2) |
4806 | n = 2; | |
dc5c3759 MS |
4807 | sd->sim_cache = (decoded_inst *) malloc (sizeof (decoded_inst) * n); |
4808 | memset (sd->sim_cache, 0, sizeof (decoded_inst) * n); | |
4809 | sd->sim_cache_size = n; | |
c906108c SS |
4810 | } |
4811 | ||
4812 | ||
4813 | void | |
a4f27e3e | 4814 | sim_info (SIM_DESC sd, int verbose) |
c906108c | 4815 | { |
dc5c3759 MS |
4816 | double timetaken = (double) h8_get_ticks (sd) / (double) now_persec (); |
4817 | double virttime = h8_get_cycles (sd) / 10.0e6; | |
c906108c SS |
4818 | |
4819 | (*sim_callback->printf_filtered) (sim_callback, | |
4820 | "\n\n#instructions executed %10d\n", | |
dc5c3759 | 4821 | h8_get_insts (sd)); |
c906108c SS |
4822 | (*sim_callback->printf_filtered) (sim_callback, |
4823 | "#cycles (v approximate) %10d\n", | |
dc5c3759 | 4824 | h8_get_cycles (sd)); |
c906108c SS |
4825 | (*sim_callback->printf_filtered) (sim_callback, |
4826 | "#real time taken %10.4f\n", | |
4827 | timetaken); | |
4828 | (*sim_callback->printf_filtered) (sim_callback, | |
e8c1a4e7 | 4829 | "#virtual time taken %10.4f\n", |
c906108c SS |
4830 | virttime); |
4831 | if (timetaken != 0.0) | |
4832 | (*sim_callback->printf_filtered) (sim_callback, | |
4833 | "#simulation ratio %10.4f\n", | |
4834 | virttime / timetaken); | |
4835 | (*sim_callback->printf_filtered) (sim_callback, | |
4836 | "#compiles %10d\n", | |
dc5c3759 | 4837 | h8_get_compiles (sd)); |
c906108c SS |
4838 | (*sim_callback->printf_filtered) (sim_callback, |
4839 | "#cache size %10d\n", | |
dc5c3759 | 4840 | sd->sim_cache_size); |
c906108c SS |
4841 | |
4842 | #ifdef ADEBUG | |
4843 | /* This to be conditional on `what' (aka `verbose'), | |
4844 | however it was never passed as non-zero. */ | |
4845 | if (1) | |
4846 | { | |
4847 | int i; | |
4848 | for (i = 0; i < O_LAST; i++) | |
4849 | { | |
dc5c3759 MS |
4850 | if (h8_get_stats (sd, i)) |
4851 | (*sim_callback->printf_filtered) (sim_callback, "%d: %d\n", | |
4852 | i, h8_get_stats (sd, i)); | |
c906108c SS |
4853 | } |
4854 | } | |
4855 | #endif | |
4856 | } | |
4857 | ||
2ea716f6 KH |
4858 | /* Indicate whether the cpu is an H8/300 or H8/300H. |
4859 | FLAG is non-zero for the H8/300H. */ | |
c906108c SS |
4860 | |
4861 | void | |
27ebfdf4 | 4862 | set_h8300h (unsigned long machine) |
c906108c SS |
4863 | { |
4864 | /* FIXME: Much of the code in sim_load can be moved to sim_open. | |
4865 | This function being replaced by a sim_open:ARGV configuration | |
2ea716f6 | 4866 | option. */ |
dc5c3759 | 4867 | |
454d0511 DD |
4868 | h8300hmode = h8300smode = h8300sxmode = h8300_normal_mode = 0; |
4869 | ||
9f70f8ec | 4870 | if (machine == bfd_mach_h8300sx || machine == bfd_mach_h8300sxn) |
27ebfdf4 MS |
4871 | h8300sxmode = 1; |
4872 | ||
4873 | if (machine == bfd_mach_h8300s || machine == bfd_mach_h8300sn || h8300sxmode) | |
4874 | h8300smode = 1; | |
4875 | ||
4876 | if (machine == bfd_mach_h8300h || machine == bfd_mach_h8300hn || h8300smode) | |
4877 | h8300hmode = 1; | |
59768597 SA |
4878 | |
4879 | if(machine == bfd_mach_h8300hn || machine == bfd_mach_h8300sn || machine == bfd_mach_h8300sxn) | |
4880 | h8300_normal_mode = 1; | |
dc5c3759 MS |
4881 | } |
4882 | ||
4883 | /* Cover function of sim_state_free to free the cpu buffers as well. */ | |
4884 | ||
4885 | static void | |
4886 | free_state (SIM_DESC sd) | |
4887 | { | |
4888 | if (STATE_MODULES (sd) != NULL) | |
4889 | sim_module_uninstall (sd); | |
4890 | ||
4891 | /* Fixme: free buffers in _sim_cpu. */ | |
4892 | sim_state_free (sd); | |
c906108c SS |
4893 | } |
4894 | ||
4895 | SIM_DESC | |
a4f27e3e | 4896 | sim_open (SIM_OPEN_KIND kind, |
dc5c3759 | 4897 | struct host_callback_struct *callback, |
6b4a8935 | 4898 | struct bfd *abfd, |
a4f27e3e | 4899 | char **argv) |
c906108c | 4900 | { |
dc5c3759 MS |
4901 | SIM_DESC sd; |
4902 | sim_cpu *cpu; | |
4903 | ||
4904 | sd = sim_state_alloc (kind, callback); | |
4905 | sd->cpu = sim_cpu_alloc (sd, 0); | |
4906 | cpu = STATE_CPU (sd, 0); | |
4907 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
4908 | sim_state_initialize (sd, cpu); | |
4909 | /* sim_cpu object is new, so some initialization is needed. */ | |
4910 | init_pointers_needed = 1; | |
4911 | ||
4912 | /* For compatibility (FIXME: is this right?). */ | |
4913 | current_alignment = NONSTRICT_ALIGNMENT; | |
4914 | current_target_byte_order = BIG_ENDIAN; | |
4915 | ||
4916 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) | |
4917 | { | |
4918 | free_state (sd); | |
4919 | return 0; | |
4920 | } | |
4921 | ||
4922 | /* getopt will print the error message so we just have to exit if | |
4923 | this fails. FIXME: Hmmm... in the case of gdb we need getopt | |
4924 | to call print_filtered. */ | |
4925 | if (sim_parse_args (sd, argv) != SIM_RC_OK) | |
4926 | { | |
4927 | /* Uninstall the modules to avoid memory leaks, | |
4928 | file descriptor leaks, etc. */ | |
4929 | free_state (sd); | |
4930 | return 0; | |
4931 | } | |
4932 | ||
4933 | /* Check for/establish the a reference program image. */ | |
4934 | if (sim_analyze_program (sd, | |
4935 | (STATE_PROG_ARGV (sd) != NULL | |
4936 | ? *STATE_PROG_ARGV (sd) | |
4937 | : NULL), abfd) != SIM_RC_OK) | |
4938 | { | |
4939 | free_state (sd); | |
4940 | return 0; | |
4941 | } | |
4942 | ||
4943 | /* Establish any remaining configuration options. */ | |
4944 | if (sim_config (sd) != SIM_RC_OK) | |
4945 | { | |
4946 | free_state (sd); | |
4947 | return 0; | |
4948 | } | |
4949 | ||
4950 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
4951 | { | |
4952 | /* Uninstall the modules to avoid memory leaks, | |
4953 | file descriptor leaks, etc. */ | |
4954 | free_state (sd); | |
4955 | return 0; | |
4956 | } | |
4957 | ||
4958 | /* sim_hw_configure (sd); */ | |
4959 | ||
2ea716f6 | 4960 | /* FIXME: Much of the code in sim_load can be moved here. */ |
c906108c SS |
4961 | |
4962 | sim_kind = kind; | |
4963 | myname = argv[0]; | |
dc5c3759 MS |
4964 | sim_callback = callback; |
4965 | return sd; | |
c906108c SS |
4966 | } |
4967 | ||
4968 | void | |
a4f27e3e | 4969 | sim_close (SIM_DESC sd, int quitting) |
c906108c | 4970 | { |
2ea716f6 | 4971 | /* Nothing to do. */ |
c906108c SS |
4972 | } |
4973 | ||
4974 | /* Called by gdb to load a program into memory. */ | |
4975 | ||
4976 | SIM_RC | |
b2b255bd | 4977 | sim_load (SIM_DESC sd, const char *prog, bfd *abfd, int from_tty) |
c906108c SS |
4978 | { |
4979 | bfd *prog_bfd; | |
4980 | ||
2ea716f6 KH |
4981 | /* FIXME: The code below that sets a specific variant of the H8/300 |
4982 | being simulated should be moved to sim_open(). */ | |
c906108c | 4983 | |
2ea716f6 | 4984 | /* See if the file is for the H8/300 or H8/300H. */ |
c906108c SS |
4985 | /* ??? This may not be the most efficient way. The z8k simulator |
4986 | does this via a different mechanism (INIT_EXTRA_SYMTAB_INFO). */ | |
4987 | if (abfd != NULL) | |
4988 | prog_bfd = abfd; | |
4989 | else | |
3d29fdb4 | 4990 | prog_bfd = bfd_openr (prog, NULL); |
c906108c SS |
4991 | if (prog_bfd != NULL) |
4992 | { | |
4993 | /* Set the cpu type. We ignore failure from bfd_check_format | |
4994 | and bfd_openr as sim_load_file checks too. */ | |
de9b1892 | 4995 | if (bfd_check_format (prog_bfd, bfd_object)) |
c906108c | 4996 | { |
27ebfdf4 | 4997 | set_h8300h (bfd_get_mach (prog_bfd)); |
c906108c SS |
4998 | } |
4999 | } | |
5000 | ||
5001 | /* If we're using gdb attached to the simulator, then we have to | |
5002 | reallocate memory for the simulator. | |
5003 | ||
5004 | When gdb first starts, it calls fetch_registers (among other | |
5005 | functions), which in turn calls init_pointers, which allocates | |
5006 | simulator memory. | |
5007 | ||
5008 | The problem is when we do that, we don't know whether we're | |
2ea716f6 | 5009 | debugging an H8/300 or H8/300H program. |
c906108c SS |
5010 | |
5011 | This is the first point at which we can make that determination, | |
5012 | so we just reallocate memory now; this will also allow us to handle | |
2ea716f6 | 5013 | switching between H8/300 and H8/300H programs without exiting |
c906108c | 5014 | gdb. */ |
a8cdafbd | 5015 | |
59768597 | 5016 | if (h8300smode && !h8300_normal_mode) |
a8cdafbd | 5017 | memory_size = H8300S_MSIZE; |
59768597 | 5018 | else if (h8300hmode && !h8300_normal_mode) |
c906108c SS |
5019 | memory_size = H8300H_MSIZE; |
5020 | else | |
5021 | memory_size = H8300_MSIZE; | |
5022 | ||
dc5c3759 MS |
5023 | if (h8_get_memory_buf (sd)) |
5024 | free (h8_get_memory_buf (sd)); | |
5025 | if (h8_get_cache_idx_buf (sd)) | |
5026 | free (h8_get_cache_idx_buf (sd)); | |
5027 | if (h8_get_eightbit_buf (sd)) | |
5028 | free (h8_get_eightbit_buf (sd)); | |
c906108c | 5029 | |
dc5c3759 MS |
5030 | h8_set_memory_buf (sd, (unsigned char *) |
5031 | calloc (sizeof (char), memory_size)); | |
5032 | h8_set_cache_idx_buf (sd, (unsigned short *) | |
5033 | calloc (sizeof (short), memory_size)); | |
e4d3c499 | 5034 | sd->memory_size = memory_size; |
dc5c3759 | 5035 | h8_set_eightbit_buf (sd, (unsigned char *) calloc (sizeof (char), 256)); |
c906108c | 5036 | |
2ea716f6 | 5037 | /* `msize' must be a power of two. */ |
c906108c | 5038 | if ((memory_size & (memory_size - 1)) != 0) |
dc5c3759 MS |
5039 | { |
5040 | (*sim_callback->printf_filtered) (sim_callback, | |
5041 | "sim_load: bad memory size.\n"); | |
5042 | return SIM_RC_FAIL; | |
5043 | } | |
5044 | h8_set_mask (sd, memory_size - 1); | |
c906108c SS |
5045 | |
5046 | if (sim_load_file (sd, myname, sim_callback, prog, prog_bfd, | |
5047 | sim_kind == SIM_OPEN_DEBUG, | |
5048 | 0, sim_write) | |
5049 | == NULL) | |
5050 | { | |
5051 | /* Close the bfd if we opened it. */ | |
5052 | if (abfd == NULL && prog_bfd != NULL) | |
5053 | bfd_close (prog_bfd); | |
5054 | return SIM_RC_FAIL; | |
5055 | } | |
5056 | ||
5057 | /* Close the bfd if we opened it. */ | |
5058 | if (abfd == NULL && prog_bfd != NULL) | |
5059 | bfd_close (prog_bfd); | |
5060 | return SIM_RC_OK; | |
5061 | } | |
5062 | ||
5063 | SIM_RC | |
6b4a8935 | 5064 | sim_create_inferior (SIM_DESC sd, struct bfd *abfd, char **argv, char **env) |
c906108c | 5065 | { |
d1360fb0 V |
5066 | int i = 0; |
5067 | int len_arg = 0; | |
5068 | int no_of_args = 0; | |
dc5c3759 | 5069 | |
c906108c | 5070 | if (abfd != NULL) |
dc5c3759 | 5071 | h8_set_pc (sd, bfd_get_start_address (abfd)); |
c906108c | 5072 | else |
dc5c3759 | 5073 | h8_set_pc (sd, 0); |
d1360fb0 V |
5074 | |
5075 | /* Command Line support. */ | |
5076 | if (argv != NULL) | |
5077 | { | |
5078 | /* Counting the no. of commandline arguments. */ | |
5079 | for (no_of_args = 0; argv[no_of_args] != NULL; no_of_args++) | |
5080 | continue; | |
5081 | ||
5082 | /* Allocating memory for the argv pointers. */ | |
dc5c3759 MS |
5083 | h8_set_command_line (sd, (char **) malloc ((sizeof (char *)) |
5084 | * (no_of_args + 1))); | |
d1360fb0 V |
5085 | |
5086 | for (i = 0; i < no_of_args; i++) | |
5087 | { | |
d1360fb0 | 5088 | /* Copying the argument string. */ |
dc5c3759 | 5089 | h8_set_cmdline_arg (sd, i, (char *) strdup (argv[i])); |
d1360fb0 | 5090 | } |
dc5c3759 | 5091 | h8_set_cmdline_arg (sd, i, NULL); |
d1360fb0 V |
5092 | } |
5093 | ||
c906108c SS |
5094 | return SIM_RC_OK; |
5095 | } | |
5096 | ||
c906108c | 5097 | void |
a4f27e3e | 5098 | sim_set_callbacks (struct host_callback_struct *ptr) |
c906108c SS |
5099 | { |
5100 | sim_callback = ptr; | |
5101 | } |