Commit | Line | Data |
---|---|---|
05ccbdfd JL |
1 | #include <signal.h> |
2 | #include "sysdep.h" | |
3 | #include "bfd.h" | |
4 | ||
5 | #include "mn10300_sim.h" | |
6 | ||
7 | #ifndef INLINE | |
8 | #ifdef __GNUC__ | |
9 | #define INLINE inline | |
10 | #else | |
11 | #define INLINE | |
12 | #endif | |
13 | #endif | |
14 | ||
15 | host_callback *mn10300_callback; | |
16 | int mn10300_debug; | |
6cc6987e DE |
17 | static SIM_OPEN_KIND sim_kind; |
18 | static char *myname; | |
05ccbdfd | 19 | |
baa83bcc | 20 | static void dispatch PARAMS ((uint32, uint32, int)); |
05ccbdfd JL |
21 | static long hash PARAMS ((long)); |
22 | static void init_system PARAMS ((void)); | |
baa83bcc | 23 | #define MAX_HASH 127 |
05ccbdfd JL |
24 | |
25 | struct hash_entry | |
26 | { | |
27 | struct hash_entry *next; | |
28 | long opcode; | |
29 | long mask; | |
30 | struct simops *ops; | |
baa83bcc JL |
31 | #ifdef HASH_STAT |
32 | unsigned long count; | |
33 | #endif | |
05ccbdfd JL |
34 | }; |
35 | ||
234a9a49 | 36 | static int max_mem = 0; |
05ccbdfd JL |
37 | struct hash_entry hash_table[MAX_HASH+1]; |
38 | ||
39 | ||
d2523010 JL |
40 | /* This probably doesn't do a very good job at bucket filling, but |
41 | it's simple... */ | |
05ccbdfd JL |
42 | static INLINE long |
43 | hash(insn) | |
44 | long insn; | |
45 | { | |
baa83bcc JL |
46 | /* These are one byte insns, we special case these since, in theory, |
47 | they should be the most heavily used. */ | |
d2523010 JL |
48 | if ((insn & 0xffffff00) == 0) |
49 | { | |
baa83bcc JL |
50 | switch (insn & 0xf0) |
51 | { | |
52 | case 0x00: | |
53 | return 0x70; | |
54 | ||
55 | case 0x40: | |
56 | return 0x71; | |
57 | ||
58 | case 0x10: | |
59 | return 0x72; | |
60 | ||
61 | case 0x30: | |
62 | return 0x73; | |
63 | ||
64 | case 0x50: | |
65 | return 0x74; | |
66 | ||
67 | case 0x60: | |
68 | return 0x75; | |
69 | ||
70 | case 0x70: | |
71 | return 0x76; | |
72 | ||
73 | case 0x80: | |
74 | return 0x77; | |
75 | ||
76 | case 0x90: | |
77 | return 0x78; | |
78 | ||
79 | case 0xa0: | |
80 | return 0x79; | |
81 | ||
82 | case 0xb0: | |
83 | return 0x7a; | |
84 | ||
85 | case 0xe0: | |
86 | return 0x7b; | |
87 | ||
88 | default: | |
89 | return 0x7c; | |
90 | } | |
d2523010 JL |
91 | } |
92 | ||
93 | /* These are two byte insns */ | |
94 | if ((insn & 0xffff0000) == 0) | |
95 | { | |
96 | if ((insn & 0xf000) == 0x2000 | |
97 | || (insn & 0xf000) == 0x5000) | |
baa83bcc | 98 | return ((insn & 0xfc00) >> 8) & 0x7f; |
d2523010 JL |
99 | |
100 | if ((insn & 0xf000) == 0x4000) | |
baa83bcc | 101 | return ((insn & 0xf300) >> 8) & 0x7f; |
d2523010 JL |
102 | |
103 | if ((insn & 0xf000) == 0x8000 | |
104 | || (insn & 0xf000) == 0x9000 | |
105 | || (insn & 0xf000) == 0xa000 | |
106 | || (insn & 0xf000) == 0xb000) | |
baa83bcc JL |
107 | return ((insn & 0xf000) >> 8) & 0x7f; |
108 | ||
109 | if ((insn & 0xff00) == 0xf000 | |
110 | || (insn & 0xff00) == 0xf100 | |
111 | || (insn & 0xff00) == 0xf200 | |
112 | || (insn & 0xff00) == 0xf500 | |
113 | || (insn & 0xff00) == 0xf600) | |
114 | return ((insn & 0xfff0) >> 4) & 0x7f; | |
115 | ||
116 | if ((insn & 0xf000) == 0xc000) | |
117 | return ((insn & 0xff00) >> 8) & 0x7f; | |
118 | ||
119 | return ((insn & 0xffc0) >> 6) & 0x7f; | |
d2523010 JL |
120 | } |
121 | ||
122 | /* These are three byte insns. */ | |
123 | if ((insn & 0xff000000) == 0) | |
124 | { | |
125 | if ((insn & 0xf00000) == 0x000000) | |
baa83bcc | 126 | return ((insn & 0xf30000) >> 16) & 0x7f; |
d2523010 JL |
127 | |
128 | if ((insn & 0xf00000) == 0x200000 | |
129 | || (insn & 0xf00000) == 0x300000) | |
baa83bcc JL |
130 | return ((insn & 0xfc0000) >> 16) & 0x7f; |
131 | ||
132 | if ((insn & 0xff0000) == 0xf80000) | |
133 | return ((insn & 0xfff000) >> 12) & 0x7f; | |
d2523010 | 134 | |
baa83bcc JL |
135 | if ((insn & 0xff0000) == 0xf90000) |
136 | return ((insn & 0xfffc00) >> 10) & 0x7f; | |
137 | ||
138 | return ((insn & 0xff0000) >> 16) & 0x7f; | |
d2523010 JL |
139 | } |
140 | ||
141 | /* These are four byte or larger insns. */ | |
baa83bcc JL |
142 | if ((insn & 0xf0000000) == 0xf0000000) |
143 | return ((insn & 0xfff00000) >> 20) & 0x7f; | |
144 | ||
145 | return ((insn & 0xff000000) >> 24) & 0x7f; | |
05ccbdfd JL |
146 | } |
147 | ||
baa83bcc JL |
148 | static void |
149 | dispatch (insn, extension, length) | |
150 | uint32 insn; | |
151 | uint32 extension; | |
d2523010 | 152 | int length; |
05ccbdfd JL |
153 | { |
154 | struct hash_entry *h; | |
155 | ||
baa83bcc | 156 | h = &hash_table[hash(insn)]; |
05ccbdfd | 157 | |
baa83bcc JL |
158 | while ((insn & h->mask) != h->opcode |
159 | || (length != h->ops->length)) | |
05ccbdfd | 160 | { |
baa83bcc | 161 | if (!h->next) |
05ccbdfd | 162 | { |
baa83bcc JL |
163 | (*mn10300_callback->printf_filtered) (mn10300_callback, |
164 | "ERROR looking up hash for 0x%x, PC=0x%x\n", insn, PC); | |
05ccbdfd JL |
165 | exit(1); |
166 | } | |
167 | h = h->next; | |
168 | } | |
baa83bcc JL |
169 | |
170 | ||
171 | #ifdef HASH_STAT | |
172 | h->count++; | |
173 | #endif | |
174 | ||
175 | /* Now call the right function. */ | |
176 | (h->ops->func)(insn, extension); | |
177 | PC += length; | |
05ccbdfd JL |
178 | } |
179 | ||
180 | /* FIXME These would more efficient to use than load_mem/store_mem, | |
181 | but need to be changed to use the memory map. */ | |
182 | ||
183 | uint8 | |
184 | get_byte (x) | |
185 | uint8 *x; | |
186 | { | |
187 | return *x; | |
188 | } | |
189 | ||
190 | uint16 | |
191 | get_half (x) | |
192 | uint8 *x; | |
193 | { | |
194 | uint8 *a = x; | |
195 | return (a[1] << 8) + (a[0]); | |
196 | } | |
197 | ||
198 | uint32 | |
199 | get_word (x) | |
200 | uint8 *x; | |
201 | { | |
202 | uint8 *a = x; | |
203 | return (a[3]<<24) + (a[2]<<16) + (a[1]<<8) + (a[0]); | |
204 | } | |
205 | ||
206 | void | |
207 | put_byte (addr, data) | |
208 | uint8 *addr; | |
209 | uint8 data; | |
210 | { | |
211 | uint8 *a = addr; | |
212 | a[0] = data; | |
213 | } | |
214 | ||
215 | void | |
216 | put_half (addr, data) | |
217 | uint8 *addr; | |
218 | uint16 data; | |
219 | { | |
220 | uint8 *a = addr; | |
221 | a[0] = data & 0xff; | |
222 | a[1] = (data >> 8) & 0xff; | |
223 | } | |
224 | ||
225 | void | |
226 | put_word (addr, data) | |
227 | uint8 *addr; | |
228 | uint32 data; | |
229 | { | |
230 | uint8 *a = addr; | |
231 | a[0] = data & 0xff; | |
232 | a[1] = (data >> 8) & 0xff; | |
233 | a[2] = (data >> 16) & 0xff; | |
234 | a[3] = (data >> 24) & 0xff; | |
235 | } | |
236 | ||
237 | ||
d2523010 JL |
238 | uint32 |
239 | load_mem_big (addr, len) | |
240 | SIM_ADDR addr; | |
241 | int len; | |
242 | { | |
243 | uint8 *p = addr + State.mem; | |
244 | ||
234a9a49 JL |
245 | if (addr > max_mem) |
246 | abort (); | |
247 | ||
d2523010 JL |
248 | switch (len) |
249 | { | |
250 | case 1: | |
251 | return p[0]; | |
252 | case 2: | |
253 | return p[0] << 8 | p[1]; | |
254 | case 3: | |
255 | return p[0] << 16 | p[1] << 8 | p[2]; | |
256 | case 4: | |
257 | return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3]; | |
258 | default: | |
259 | abort (); | |
260 | } | |
261 | } | |
262 | ||
05ccbdfd JL |
263 | uint32 |
264 | load_mem (addr, len) | |
265 | SIM_ADDR addr; | |
266 | int len; | |
267 | { | |
268 | uint8 *p = addr + State.mem; | |
269 | ||
234a9a49 JL |
270 | if (addr > max_mem) |
271 | abort (); | |
272 | ||
05ccbdfd JL |
273 | switch (len) |
274 | { | |
275 | case 1: | |
276 | return p[0]; | |
277 | case 2: | |
278 | return p[1] << 8 | p[0]; | |
d2523010 JL |
279 | case 3: |
280 | return p[2] << 16 | p[1] << 8 | p[0]; | |
05ccbdfd JL |
281 | case 4: |
282 | return p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0]; | |
283 | default: | |
284 | abort (); | |
285 | } | |
286 | } | |
287 | ||
288 | void | |
289 | store_mem (addr, len, data) | |
290 | SIM_ADDR addr; | |
291 | int len; | |
292 | uint32 data; | |
293 | { | |
294 | uint8 *p = addr + State.mem; | |
295 | ||
234a9a49 JL |
296 | if (addr > max_mem) |
297 | abort (); | |
298 | ||
05ccbdfd JL |
299 | switch (len) |
300 | { | |
301 | case 1: | |
302 | p[0] = data; | |
303 | return; | |
304 | case 2: | |
305 | p[0] = data; | |
306 | p[1] = data >> 8; | |
307 | return; | |
308 | case 4: | |
309 | p[0] = data; | |
310 | p[1] = data >> 8; | |
311 | p[2] = data >> 16; | |
312 | p[3] = data >> 24; | |
313 | return; | |
314 | default: | |
315 | abort (); | |
316 | } | |
317 | } | |
318 | ||
319 | void | |
320 | sim_size (power) | |
321 | int power; | |
322 | ||
323 | { | |
324 | if (State.mem) | |
325 | free (State.mem); | |
326 | ||
234a9a49 | 327 | max_mem = 1 << power; |
05ccbdfd JL |
328 | State.mem = (uint8 *) calloc (1, 1 << power); |
329 | if (!State.mem) | |
330 | { | |
331 | (*mn10300_callback->printf_filtered) (mn10300_callback, "Allocation of main memory failed.\n"); | |
332 | exit (1); | |
333 | } | |
334 | } | |
335 | ||
336 | static void | |
337 | init_system () | |
338 | { | |
339 | if (!State.mem) | |
6cc6987e | 340 | sim_size(19); |
05ccbdfd JL |
341 | } |
342 | ||
343 | int | |
6cc6987e DE |
344 | sim_write (sd, addr, buffer, size) |
345 | SIM_DESC sd; | |
05ccbdfd JL |
346 | SIM_ADDR addr; |
347 | unsigned char *buffer; | |
348 | int size; | |
349 | { | |
350 | int i; | |
351 | ||
352 | init_system (); | |
353 | ||
354 | for (i = 0; i < size; i++) | |
355 | store_mem (addr + i, 1, buffer[i]); | |
356 | ||
357 | return size; | |
358 | } | |
359 | ||
6cc6987e DE |
360 | SIM_DESC |
361 | sim_open (kind,argv) | |
362 | SIM_OPEN_KIND kind; | |
363 | char **argv; | |
05ccbdfd JL |
364 | { |
365 | struct simops *s; | |
366 | struct hash_entry *h; | |
6cc6987e DE |
367 | char **p; |
368 | ||
369 | sim_kind = kind; | |
370 | myname = argv[0]; | |
371 | ||
372 | for (p = argv + 1; *p; ++p) | |
05ccbdfd | 373 | { |
6cc6987e DE |
374 | if (strcmp (*p, "-E") == 0) |
375 | ++p; /* ignore endian spec */ | |
376 | else | |
05ccbdfd | 377 | #ifdef DEBUG |
6cc6987e | 378 | if (strcmp (*p, "-t") == 0) |
05ccbdfd JL |
379 | mn10300_debug = DEBUG; |
380 | else | |
381 | #endif | |
6cc6987e | 382 | (*mn10300_callback->printf_filtered) (mn10300_callback, "ERROR: unsupported option(s): %s\n",*p); |
05ccbdfd JL |
383 | } |
384 | ||
baa83bcc | 385 | /* put all the opcodes in the hash table */ |
05ccbdfd JL |
386 | for (s = Simops; s->func; s++) |
387 | { | |
388 | h = &hash_table[hash(s->opcode)]; | |
baa83bcc | 389 | |
05ccbdfd JL |
390 | /* go to the last entry in the chain */ |
391 | while (h->next) | |
baa83bcc JL |
392 | { |
393 | /* Don't insert the same opcode more than once. */ | |
394 | if (h->opcode == s->opcode | |
395 | && h->mask == s->mask | |
396 | && h->ops == s) | |
397 | continue; | |
398 | else | |
399 | h = h->next; | |
400 | } | |
401 | ||
402 | /* Don't insert the same opcode more than once. */ | |
403 | if (h->opcode == s->opcode | |
404 | && h->mask == s->mask | |
405 | && h->ops == s) | |
406 | continue; | |
05ccbdfd JL |
407 | |
408 | if (h->ops) | |
409 | { | |
410 | h->next = calloc(1,sizeof(struct hash_entry)); | |
411 | h = h->next; | |
412 | } | |
413 | h->ops = s; | |
414 | h->mask = s->mask; | |
415 | h->opcode = s->opcode; | |
baa83bcc JL |
416 | #if HASH_STAT |
417 | h->count = 0; | |
418 | #endif | |
05ccbdfd | 419 | } |
6cc6987e | 420 | |
baa83bcc | 421 | |
6cc6987e DE |
422 | /* fudge our descriptor for now */ |
423 | return (SIM_DESC) 1; | |
05ccbdfd JL |
424 | } |
425 | ||
426 | ||
427 | void | |
6cc6987e DE |
428 | sim_close (sd, quitting) |
429 | SIM_DESC sd; | |
05ccbdfd JL |
430 | int quitting; |
431 | { | |
432 | /* nothing to do */ | |
433 | } | |
434 | ||
435 | void | |
436 | sim_set_profile (n) | |
437 | int n; | |
438 | { | |
439 | (*mn10300_callback->printf_filtered) (mn10300_callback, "sim_set_profile %d\n", n); | |
440 | } | |
441 | ||
442 | void | |
443 | sim_set_profile_size (n) | |
444 | int n; | |
445 | { | |
446 | (*mn10300_callback->printf_filtered) (mn10300_callback, "sim_set_profile_size %d\n", n); | |
447 | } | |
448 | ||
baa83bcc JL |
449 | int |
450 | sim_stop (sd) | |
451 | SIM_DESC sd; | |
452 | { | |
453 | return 0; | |
454 | } | |
455 | ||
05ccbdfd | 456 | void |
6cc6987e DE |
457 | sim_resume (sd, step, siggnal) |
458 | SIM_DESC sd; | |
05ccbdfd JL |
459 | int step, siggnal; |
460 | { | |
7c52bf32 | 461 | uint32 inst; |
05ccbdfd | 462 | reg_t oldpc; |
d2523010 | 463 | struct hash_entry *h; |
05ccbdfd JL |
464 | |
465 | if (step) | |
466 | State.exception = SIGTRAP; | |
467 | else | |
468 | State.exception = 0; | |
469 | ||
470 | do | |
471 | { | |
d2523010 JL |
472 | unsigned long insn, extension; |
473 | ||
05ccbdfd | 474 | /* Fetch the current instruction. */ |
baa83bcc | 475 | inst = load_mem_big (PC, 2); |
05ccbdfd | 476 | oldpc = PC; |
05ccbdfd | 477 | |
baa83bcc JL |
478 | /* Using a giant case statement may seem like a waste because of the |
479 | code/rodata size the table itself will consume. However, using | |
480 | a giant case statement speeds up the simulator by 10-15% by avoiding | |
481 | cascading if/else statements or cascading case statements. */ | |
d2523010 | 482 | |
baa83bcc | 483 | switch ((inst >> 8) & 0xff) |
d2523010 | 484 | { |
baa83bcc JL |
485 | /* All the single byte insns except 0x80, 0x90, 0xa0, 0xb0 |
486 | which must be handled specially. */ | |
487 | case 0x00: | |
488 | case 0x04: | |
489 | case 0x08: | |
490 | case 0x0c: | |
491 | case 0x11: | |
492 | case 0x12: | |
493 | case 0x13: | |
494 | case 0x14: | |
495 | case 0x15: | |
496 | case 0x16: | |
497 | case 0x17: | |
498 | case 0x18: | |
499 | case 0x19: | |
500 | case 0x1a: | |
501 | case 0x1b: | |
502 | case 0x1c: | |
503 | case 0x1d: | |
504 | case 0x1e: | |
505 | case 0x1f: | |
506 | case 0x3c: | |
507 | case 0x3d: | |
508 | case 0x3e: | |
509 | case 0x3f: | |
510 | case 0x40: | |
511 | case 0x41: | |
512 | case 0x44: | |
513 | case 0x45: | |
514 | case 0x48: | |
515 | case 0x49: | |
516 | case 0x4c: | |
517 | case 0x4d: | |
518 | case 0x50: | |
519 | case 0x51: | |
520 | case 0x52: | |
521 | case 0x53: | |
522 | case 0x54: | |
523 | case 0x55: | |
524 | case 0x56: | |
525 | case 0x57: | |
526 | case 0x60: | |
527 | case 0x61: | |
528 | case 0x62: | |
529 | case 0x63: | |
530 | case 0x64: | |
531 | case 0x65: | |
532 | case 0x66: | |
533 | case 0x67: | |
534 | case 0x68: | |
535 | case 0x69: | |
536 | case 0x6a: | |
537 | case 0x6b: | |
538 | case 0x6c: | |
539 | case 0x6d: | |
540 | case 0x6e: | |
541 | case 0x6f: | |
542 | case 0x70: | |
543 | case 0x71: | |
544 | case 0x72: | |
545 | case 0x73: | |
546 | case 0x74: | |
547 | case 0x75: | |
548 | case 0x76: | |
549 | case 0x77: | |
550 | case 0x78: | |
551 | case 0x79: | |
552 | case 0x7a: | |
553 | case 0x7b: | |
554 | case 0x7c: | |
555 | case 0x7d: | |
556 | case 0x7e: | |
557 | case 0x7f: | |
558 | case 0xcb: | |
559 | case 0xd0: | |
560 | case 0xd1: | |
561 | case 0xd2: | |
562 | case 0xd3: | |
563 | case 0xd4: | |
564 | case 0xd5: | |
565 | case 0xd6: | |
566 | case 0xd7: | |
567 | case 0xd8: | |
568 | case 0xd9: | |
569 | case 0xda: | |
570 | case 0xdb: | |
571 | case 0xe0: | |
572 | case 0xe1: | |
573 | case 0xe2: | |
574 | case 0xe3: | |
575 | case 0xe4: | |
576 | case 0xe5: | |
577 | case 0xe6: | |
578 | case 0xe7: | |
579 | case 0xe8: | |
580 | case 0xe9: | |
581 | case 0xea: | |
582 | case 0xeb: | |
583 | case 0xec: | |
584 | case 0xed: | |
585 | case 0xee: | |
586 | case 0xef: | |
587 | case 0xff: | |
588 | insn = (inst >> 8) & 0xff; | |
589 | extension = 0; | |
590 | dispatch (insn, extension, 1); | |
591 | break; | |
592 | ||
593 | /* Special cases where dm == dn is used to encode a different | |
594 | instruction. */ | |
595 | case 0x80: | |
596 | case 0x85: | |
597 | case 0x8a: | |
598 | case 0x8f: | |
599 | case 0x90: | |
600 | case 0x95: | |
601 | case 0x9a: | |
602 | case 0x9f: | |
603 | case 0xa0: | |
604 | case 0xa5: | |
605 | case 0xaa: | |
606 | case 0xaf: | |
607 | case 0xb0: | |
608 | case 0xb5: | |
609 | case 0xba: | |
610 | case 0xbf: | |
611 | insn = inst; | |
612 | extension = 0; | |
613 | dispatch (insn, extension, 2); | |
614 | break; | |
615 | ||
616 | case 0x81: | |
617 | case 0x82: | |
618 | case 0x83: | |
619 | case 0x84: | |
620 | case 0x86: | |
621 | case 0x87: | |
622 | case 0x88: | |
623 | case 0x89: | |
624 | case 0x8b: | |
625 | case 0x8c: | |
626 | case 0x8d: | |
627 | case 0x8e: | |
628 | case 0x91: | |
629 | case 0x92: | |
630 | case 0x93: | |
631 | case 0x94: | |
632 | case 0x96: | |
633 | case 0x97: | |
634 | case 0x98: | |
635 | case 0x99: | |
636 | case 0x9b: | |
637 | case 0x9c: | |
638 | case 0x9d: | |
639 | case 0x9e: | |
640 | case 0xa1: | |
641 | case 0xa2: | |
642 | case 0xa3: | |
643 | case 0xa4: | |
644 | case 0xa6: | |
645 | case 0xa7: | |
646 | case 0xa8: | |
647 | case 0xa9: | |
648 | case 0xab: | |
649 | case 0xac: | |
650 | case 0xad: | |
651 | case 0xae: | |
652 | case 0xb1: | |
653 | case 0xb2: | |
654 | case 0xb3: | |
655 | case 0xb4: | |
656 | case 0xb6: | |
657 | case 0xb7: | |
658 | case 0xb8: | |
659 | case 0xb9: | |
660 | case 0xbb: | |
661 | case 0xbc: | |
662 | case 0xbd: | |
663 | case 0xbe: | |
664 | insn = (inst >> 8) & 0xff; | |
665 | extension = 0; | |
666 | dispatch (insn, extension, 1); | |
667 | break; | |
668 | ||
669 | /* The two byte instructions. */ | |
670 | case 0x20: | |
671 | case 0x21: | |
672 | case 0x22: | |
673 | case 0x23: | |
674 | case 0x28: | |
675 | case 0x29: | |
676 | case 0x2a: | |
677 | case 0x2b: | |
678 | case 0x42: | |
679 | case 0x43: | |
680 | case 0x46: | |
681 | case 0x47: | |
682 | case 0x4a: | |
683 | case 0x4b: | |
684 | case 0x4e: | |
685 | case 0x4f: | |
686 | case 0x58: | |
687 | case 0x59: | |
688 | case 0x5a: | |
689 | case 0x5b: | |
690 | case 0x5c: | |
691 | case 0x5d: | |
692 | case 0x5e: | |
693 | case 0x5f: | |
694 | case 0xc0: | |
695 | case 0xc1: | |
696 | case 0xc2: | |
697 | case 0xc3: | |
698 | case 0xc4: | |
699 | case 0xc5: | |
700 | case 0xc6: | |
701 | case 0xc7: | |
702 | case 0xc8: | |
703 | case 0xc9: | |
704 | case 0xca: | |
705 | case 0xce: | |
706 | case 0xcf: | |
707 | case 0xf0: | |
708 | case 0xf1: | |
709 | case 0xf2: | |
710 | case 0xf3: | |
711 | case 0xf4: | |
712 | case 0xf5: | |
713 | case 0xf6: | |
714 | insn = inst; | |
715 | extension = 0; | |
716 | dispatch (insn, extension, 2); | |
717 | break; | |
718 | ||
719 | /* The three byte insns with a 16bit operand in little endian | |
720 | format. */ | |
721 | case 0x01: | |
722 | case 0x02: | |
723 | case 0x03: | |
724 | case 0x05: | |
725 | case 0x06: | |
726 | case 0x07: | |
727 | case 0x09: | |
728 | case 0x0a: | |
729 | case 0x0b: | |
730 | case 0x0d: | |
731 | case 0x0e: | |
732 | case 0x0f: | |
733 | case 0x24: | |
734 | case 0x25: | |
735 | case 0x26: | |
736 | case 0x27: | |
737 | case 0x2c: | |
738 | case 0x2d: | |
739 | case 0x2e: | |
740 | case 0x2f: | |
741 | case 0x30: | |
742 | case 0x31: | |
743 | case 0x32: | |
744 | case 0x33: | |
745 | case 0x34: | |
746 | case 0x35: | |
747 | case 0x36: | |
748 | case 0x37: | |
749 | case 0x38: | |
750 | case 0x39: | |
751 | case 0x3a: | |
752 | case 0x3b: | |
753 | case 0xcc: | |
754 | insn = load_mem (PC, 1); | |
755 | insn <<= 16; | |
756 | insn |= load_mem (PC + 1, 2); | |
757 | extension = 0; | |
758 | dispatch (insn, extension, 3); | |
759 | break; | |
760 | ||
761 | /* The three byte insns without 16bit operand. */ | |
762 | case 0xde: | |
763 | case 0xdf: | |
764 | case 0xf8: | |
765 | case 0xf9: | |
766 | insn = load_mem_big (PC, 3); | |
767 | extension = 0; | |
768 | dispatch (insn, extension, 3); | |
769 | break; | |
770 | ||
771 | /* Four byte insns. */ | |
772 | case 0xfa: | |
773 | case 0xfb: | |
774 | if ((inst & 0xfffc) == 0xfaf0 | |
775 | || (inst & 0xfffc) == 0xfaf4 | |
776 | || (inst & 0xfffc) == 0xfaf8) | |
777 | insn = load_mem_big (PC, 4); | |
778 | else | |
779 | { | |
780 | insn = inst; | |
781 | insn <<= 16; | |
782 | insn |= load_mem (PC + 2, 2); | |
783 | extension = 0; | |
784 | } | |
785 | dispatch (insn, extension, 4); | |
786 | break; | |
787 | ||
788 | /* Five byte insns. */ | |
789 | case 0xcd: | |
790 | insn = load_mem (PC, 1); | |
791 | insn <<= 24; | |
792 | insn |= (load_mem (PC + 1, 2) << 8); | |
793 | insn |= load_mem (PC + 3, 1); | |
794 | extension = load_mem (PC + 4, 1); | |
795 | dispatch (insn, extension, 5); | |
796 | break; | |
797 | ||
798 | case 0xdc: | |
799 | insn = load_mem (PC, 1); | |
800 | insn <<= 24; | |
801 | extension = load_mem (PC + 1, 4); | |
802 | insn |= (extension & 0xffffff00) >> 8; | |
803 | extension &= 0xff; | |
804 | dispatch (insn, extension, 5); | |
805 | break; | |
806 | ||
807 | /* Six byte insns. */ | |
808 | case 0xfc: | |
809 | case 0xfd: | |
810 | insn = (inst << 16); | |
811 | extension = load_mem (PC + 2, 4); | |
812 | insn |= ((extension & 0xffff0000) >> 16); | |
813 | extension &= 0xffff; | |
814 | dispatch (insn, extension, 6); | |
815 | break; | |
816 | ||
817 | case 0xdd: | |
818 | insn = load_mem (PC, 1) << 24; | |
819 | extension = load_mem (PC + 1, 4); | |
820 | insn |= ((extension >> 8) & 0xffffff); | |
821 | extension = (extension & 0xff) << 16; | |
822 | extension |= load_mem (PC + 5, 1) << 8; | |
823 | extension |= load_mem (PC + 6, 1); | |
824 | dispatch (insn, extension, 7); | |
825 | break; | |
826 | ||
827 | case 0xfe: | |
828 | insn = inst << 16; | |
829 | extension = load_mem (PC + 2, 4); | |
830 | insn |= ((extension >> 16) & 0xffff); | |
831 | extension <<= 8; | |
832 | extension &= 0xffff00; | |
833 | extension |= load_mem (PC + 6, 1); | |
834 | dispatch (insn, extension, 7); | |
835 | break; | |
836 | ||
837 | default: | |
838 | abort (); | |
05ccbdfd JL |
839 | } |
840 | } | |
841 | while (!State.exception); | |
baa83bcc JL |
842 | |
843 | #ifdef HASH_STAT | |
844 | { | |
845 | int i; | |
846 | for (i = 0; i < MAX_HASH; i++) | |
847 | { | |
848 | struct hash_entry *h; | |
849 | h = &hash_table[i]; | |
850 | ||
851 | printf("hash 0x%x:\n", i); | |
852 | ||
853 | while (h) | |
854 | { | |
855 | printf("h->opcode = 0x%x, count = 0x%x\n", h->opcode, h->count); | |
856 | h = h->next; | |
857 | } | |
858 | ||
859 | printf("\n\n"); | |
860 | } | |
861 | fflush (stdout); | |
862 | } | |
863 | #endif | |
864 | ||
05ccbdfd JL |
865 | } |
866 | ||
867 | int | |
6cc6987e DE |
868 | sim_trace (sd) |
869 | SIM_DESC sd; | |
05ccbdfd JL |
870 | { |
871 | #ifdef DEBUG | |
872 | mn10300_debug = DEBUG; | |
873 | #endif | |
6cc6987e | 874 | sim_resume (sd, 0, 0); |
05ccbdfd JL |
875 | return 1; |
876 | } | |
877 | ||
878 | void | |
6cc6987e DE |
879 | sim_info (sd, verbose) |
880 | SIM_DESC sd; | |
05ccbdfd JL |
881 | int verbose; |
882 | { | |
883 | (*mn10300_callback->printf_filtered) (mn10300_callback, "sim_info\n"); | |
884 | } | |
885 | ||
6cc6987e DE |
886 | SIM_RC |
887 | sim_create_inferior (sd, argv, env) | |
888 | SIM_DESC sd; | |
05ccbdfd JL |
889 | char **argv; |
890 | char **env; | |
891 | { | |
6cc6987e | 892 | return SIM_RC_OK; |
05ccbdfd JL |
893 | } |
894 | ||
895 | void | |
6cc6987e DE |
896 | sim_kill (sd) |
897 | SIM_DESC sd; | |
05ccbdfd JL |
898 | { |
899 | /* nothing to do */ | |
900 | } | |
901 | ||
902 | void | |
6cc6987e DE |
903 | sim_set_callbacks (sd, p) |
904 | SIM_DESC sd; | |
05ccbdfd JL |
905 | host_callback *p; |
906 | { | |
907 | mn10300_callback = p; | |
908 | } | |
909 | ||
910 | /* All the code for exiting, signals, etc needs to be revamped. | |
911 | ||
912 | This is enough to get c-torture limping though. */ | |
913 | ||
914 | void | |
6cc6987e DE |
915 | sim_stop_reason (sd, reason, sigrc) |
916 | SIM_DESC sd; | |
05ccbdfd JL |
917 | enum sim_stop *reason; |
918 | int *sigrc; | |
919 | { | |
920 | *reason = sim_stopped; | |
921 | if (State.exception == SIGQUIT) | |
922 | *sigrc = 0; | |
923 | else | |
924 | *sigrc = State.exception; | |
925 | } | |
926 | ||
927 | void | |
6cc6987e DE |
928 | sim_fetch_register (sd, rn, memory) |
929 | SIM_DESC sd; | |
05ccbdfd JL |
930 | int rn; |
931 | unsigned char *memory; | |
932 | { | |
933 | put_word (memory, State.regs[rn]); | |
934 | } | |
935 | ||
936 | void | |
6cc6987e DE |
937 | sim_store_register (sd, rn, memory) |
938 | SIM_DESC sd; | |
05ccbdfd JL |
939 | int rn; |
940 | unsigned char *memory; | |
941 | { | |
942 | State.regs[rn] = get_word (memory); | |
943 | } | |
944 | ||
945 | int | |
6cc6987e DE |
946 | sim_read (sd, addr, buffer, size) |
947 | SIM_DESC sd; | |
05ccbdfd JL |
948 | SIM_ADDR addr; |
949 | unsigned char *buffer; | |
950 | int size; | |
951 | { | |
952 | int i; | |
953 | for (i = 0; i < size; i++) | |
954 | buffer[i] = load_mem (addr + i, 1); | |
955 | ||
956 | return size; | |
957 | } | |
958 | ||
959 | void | |
6cc6987e DE |
960 | sim_do_command (sd, cmd) |
961 | SIM_DESC sd; | |
05ccbdfd JL |
962 | char *cmd; |
963 | { | |
964 | (*mn10300_callback->printf_filtered) (mn10300_callback, "\"%s\" is not a valid mn10300 simulator command.\n", cmd); | |
965 | } | |
966 | ||
6cc6987e DE |
967 | SIM_RC |
968 | sim_load (sd, prog, abfd, from_tty) | |
969 | SIM_DESC sd; | |
05ccbdfd | 970 | char *prog; |
6cc6987e | 971 | bfd *abfd; |
05ccbdfd JL |
972 | int from_tty; |
973 | { | |
6cc6987e DE |
974 | extern bfd *sim_load_file (); /* ??? Don't know where this should live. */ |
975 | bfd *prog_bfd; | |
976 | ||
977 | prog_bfd = sim_load_file (sd, myname, mn10300_callback, prog, abfd, | |
978 | sim_kind == SIM_OPEN_DEBUG); | |
979 | if (prog_bfd == NULL) | |
980 | return SIM_RC_FAIL; | |
981 | PC = bfd_get_start_address (prog_bfd); | |
982 | if (abfd == NULL) | |
983 | bfd_close (prog_bfd); | |
984 | return SIM_RC_OK; | |
05ccbdfd | 985 | } |