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6af0bf9c FB |
1 | /* |
2 | * MIPS emulation micro-operations for qemu. | |
3 | * | |
4 | * Copyright (c) 2004-2005 Jocelyn Mayer | |
6ea83fed | 5 | * Copyright (c) 2006 Marius Groeger (FPU operations) |
6af0bf9c FB |
6 | * |
7 | * This library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with this library; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include "config.h" | |
23 | #include "exec.h" | |
24 | ||
1b351e52 FB |
25 | #ifndef CALL_FROM_TB0 |
26 | #define CALL_FROM_TB0(func) func(); | |
27 | #endif | |
28 | #ifndef CALL_FROM_TB1 | |
29 | #define CALL_FROM_TB1(func, arg0) func(arg0); | |
30 | #endif | |
31 | #ifndef CALL_FROM_TB1_CONST16 | |
32 | #define CALL_FROM_TB1_CONST16(func, arg0) CALL_FROM_TB1(func, arg0); | |
33 | #endif | |
34 | #ifndef CALL_FROM_TB2 | |
35 | #define CALL_FROM_TB2(func, arg0, arg1) func(arg0, arg1); | |
36 | #endif | |
37 | #ifndef CALL_FROM_TB2_CONST16 | |
38 | #define CALL_FROM_TB2_CONST16(func, arg0, arg1) \ | |
39 | CALL_FROM_TB2(func, arg0, arg1); | |
40 | #endif | |
41 | #ifndef CALL_FROM_TB3 | |
42 | #define CALL_FROM_TB3(func, arg0, arg1, arg2) func(arg0, arg1, arg2); | |
43 | #endif | |
44 | #ifndef CALL_FROM_TB4 | |
45 | #define CALL_FROM_TB4(func, arg0, arg1, arg2, arg3) \ | |
46 | func(arg0, arg1, arg2, arg3); | |
47 | #endif | |
48 | ||
6af0bf9c FB |
49 | #define REG 1 |
50 | #include "op_template.c" | |
51 | #undef REG | |
52 | #define REG 2 | |
53 | #include "op_template.c" | |
54 | #undef REG | |
55 | #define REG 3 | |
56 | #include "op_template.c" | |
57 | #undef REG | |
58 | #define REG 4 | |
59 | #include "op_template.c" | |
60 | #undef REG | |
61 | #define REG 5 | |
62 | #include "op_template.c" | |
63 | #undef REG | |
64 | #define REG 6 | |
65 | #include "op_template.c" | |
66 | #undef REG | |
67 | #define REG 7 | |
68 | #include "op_template.c" | |
69 | #undef REG | |
70 | #define REG 8 | |
71 | #include "op_template.c" | |
72 | #undef REG | |
73 | #define REG 9 | |
74 | #include "op_template.c" | |
75 | #undef REG | |
76 | #define REG 10 | |
77 | #include "op_template.c" | |
78 | #undef REG | |
79 | #define REG 11 | |
80 | #include "op_template.c" | |
81 | #undef REG | |
82 | #define REG 12 | |
83 | #include "op_template.c" | |
84 | #undef REG | |
85 | #define REG 13 | |
86 | #include "op_template.c" | |
87 | #undef REG | |
88 | #define REG 14 | |
89 | #include "op_template.c" | |
90 | #undef REG | |
91 | #define REG 15 | |
92 | #include "op_template.c" | |
93 | #undef REG | |
94 | #define REG 16 | |
95 | #include "op_template.c" | |
96 | #undef REG | |
97 | #define REG 17 | |
98 | #include "op_template.c" | |
99 | #undef REG | |
100 | #define REG 18 | |
101 | #include "op_template.c" | |
102 | #undef REG | |
103 | #define REG 19 | |
104 | #include "op_template.c" | |
105 | #undef REG | |
106 | #define REG 20 | |
107 | #include "op_template.c" | |
108 | #undef REG | |
109 | #define REG 21 | |
110 | #include "op_template.c" | |
111 | #undef REG | |
112 | #define REG 22 | |
113 | #include "op_template.c" | |
114 | #undef REG | |
115 | #define REG 23 | |
116 | #include "op_template.c" | |
117 | #undef REG | |
118 | #define REG 24 | |
119 | #include "op_template.c" | |
120 | #undef REG | |
121 | #define REG 25 | |
122 | #include "op_template.c" | |
123 | #undef REG | |
124 | #define REG 26 | |
125 | #include "op_template.c" | |
126 | #undef REG | |
127 | #define REG 27 | |
128 | #include "op_template.c" | |
129 | #undef REG | |
130 | #define REG 28 | |
131 | #include "op_template.c" | |
132 | #undef REG | |
133 | #define REG 29 | |
134 | #include "op_template.c" | |
135 | #undef REG | |
136 | #define REG 30 | |
137 | #include "op_template.c" | |
138 | #undef REG | |
139 | #define REG 31 | |
140 | #include "op_template.c" | |
141 | #undef REG | |
142 | ||
143 | #define TN T0 | |
144 | #include "op_template.c" | |
145 | #undef TN | |
146 | #define TN T1 | |
147 | #include "op_template.c" | |
148 | #undef TN | |
149 | #define TN T2 | |
150 | #include "op_template.c" | |
151 | #undef TN | |
152 | ||
6ea83fed FB |
153 | #ifdef MIPS_USES_FPU |
154 | ||
155 | #define SFREG 0 | |
156 | #define DFREG 0 | |
157 | #include "fop_template.c" | |
158 | #undef SFREG | |
159 | #undef DFREG | |
160 | #define SFREG 1 | |
161 | #include "fop_template.c" | |
162 | #undef SFREG | |
163 | #define SFREG 2 | |
164 | #define DFREG 2 | |
165 | #include "fop_template.c" | |
166 | #undef SFREG | |
167 | #undef DFREG | |
168 | #define SFREG 3 | |
169 | #include "fop_template.c" | |
170 | #undef SFREG | |
171 | #define SFREG 4 | |
172 | #define DFREG 4 | |
173 | #include "fop_template.c" | |
174 | #undef SFREG | |
175 | #undef DFREG | |
176 | #define SFREG 5 | |
177 | #include "fop_template.c" | |
178 | #undef SFREG | |
179 | #define SFREG 6 | |
180 | #define DFREG 6 | |
181 | #include "fop_template.c" | |
182 | #undef SFREG | |
183 | #undef DFREG | |
184 | #define SFREG 7 | |
185 | #include "fop_template.c" | |
186 | #undef SFREG | |
187 | #define SFREG 8 | |
188 | #define DFREG 8 | |
189 | #include "fop_template.c" | |
190 | #undef SFREG | |
191 | #undef DFREG | |
192 | #define SFREG 9 | |
193 | #include "fop_template.c" | |
194 | #undef SFREG | |
195 | #define SFREG 10 | |
196 | #define DFREG 10 | |
197 | #include "fop_template.c" | |
198 | #undef SFREG | |
199 | #undef DFREG | |
200 | #define SFREG 11 | |
201 | #include "fop_template.c" | |
202 | #undef SFREG | |
203 | #define SFREG 12 | |
204 | #define DFREG 12 | |
205 | #include "fop_template.c" | |
206 | #undef SFREG | |
207 | #undef DFREG | |
208 | #define SFREG 13 | |
209 | #include "fop_template.c" | |
210 | #undef SFREG | |
211 | #define SFREG 14 | |
212 | #define DFREG 14 | |
213 | #include "fop_template.c" | |
214 | #undef SFREG | |
215 | #undef DFREG | |
216 | #define SFREG 15 | |
217 | #include "fop_template.c" | |
218 | #undef SFREG | |
219 | #define SFREG 16 | |
220 | #define DFREG 16 | |
221 | #include "fop_template.c" | |
222 | #undef SFREG | |
223 | #undef DFREG | |
224 | #define SFREG 17 | |
225 | #include "fop_template.c" | |
226 | #undef SFREG | |
227 | #define SFREG 18 | |
228 | #define DFREG 18 | |
229 | #include "fop_template.c" | |
230 | #undef SFREG | |
231 | #undef DFREG | |
232 | #define SFREG 19 | |
233 | #include "fop_template.c" | |
234 | #undef SFREG | |
235 | #define SFREG 20 | |
236 | #define DFREG 20 | |
237 | #include "fop_template.c" | |
238 | #undef SFREG | |
239 | #undef DFREG | |
240 | #define SFREG 21 | |
241 | #include "fop_template.c" | |
242 | #undef SFREG | |
243 | #define SFREG 22 | |
244 | #define DFREG 22 | |
245 | #include "fop_template.c" | |
246 | #undef SFREG | |
247 | #undef DFREG | |
248 | #define SFREG 23 | |
249 | #include "fop_template.c" | |
250 | #undef SFREG | |
251 | #define SFREG 24 | |
252 | #define DFREG 24 | |
253 | #include "fop_template.c" | |
254 | #undef SFREG | |
255 | #undef DFREG | |
256 | #define SFREG 25 | |
257 | #include "fop_template.c" | |
258 | #undef SFREG | |
259 | #define SFREG 26 | |
260 | #define DFREG 26 | |
261 | #include "fop_template.c" | |
262 | #undef SFREG | |
263 | #undef DFREG | |
264 | #define SFREG 27 | |
265 | #include "fop_template.c" | |
266 | #undef SFREG | |
267 | #define SFREG 28 | |
268 | #define DFREG 28 | |
269 | #include "fop_template.c" | |
270 | #undef SFREG | |
271 | #undef DFREG | |
272 | #define SFREG 29 | |
273 | #include "fop_template.c" | |
274 | #undef SFREG | |
275 | #define SFREG 30 | |
276 | #define DFREG 30 | |
277 | #include "fop_template.c" | |
278 | #undef SFREG | |
279 | #undef DFREG | |
280 | #define SFREG 31 | |
281 | #include "fop_template.c" | |
282 | #undef SFREG | |
283 | ||
284 | #define FTN | |
285 | #include "fop_template.c" | |
286 | #undef FTN | |
287 | ||
288 | #endif | |
289 | ||
6af0bf9c FB |
290 | void op_dup_T0 (void) |
291 | { | |
292 | T2 = T0; | |
293 | RETURN(); | |
294 | } | |
295 | ||
296 | void op_load_HI (void) | |
297 | { | |
298 | T0 = env->HI; | |
299 | RETURN(); | |
300 | } | |
301 | ||
302 | void op_store_HI (void) | |
303 | { | |
304 | env->HI = T0; | |
305 | RETURN(); | |
306 | } | |
307 | ||
308 | void op_load_LO (void) | |
309 | { | |
310 | T0 = env->LO; | |
311 | RETURN(); | |
312 | } | |
313 | ||
314 | void op_store_LO (void) | |
315 | { | |
316 | env->LO = T0; | |
317 | RETURN(); | |
318 | } | |
319 | ||
320 | /* Load and store */ | |
321 | #define MEMSUFFIX _raw | |
322 | #include "op_mem.c" | |
323 | #undef MEMSUFFIX | |
324 | #if !defined(CONFIG_USER_ONLY) | |
325 | #define MEMSUFFIX _user | |
326 | #include "op_mem.c" | |
327 | #undef MEMSUFFIX | |
328 | ||
329 | #define MEMSUFFIX _kernel | |
330 | #include "op_mem.c" | |
331 | #undef MEMSUFFIX | |
332 | #endif | |
333 | ||
334 | /* Arithmetic */ | |
335 | void op_add (void) | |
336 | { | |
337 | T0 += T1; | |
338 | RETURN(); | |
339 | } | |
340 | ||
341 | void op_addo (void) | |
342 | { | |
343 | target_ulong tmp; | |
344 | ||
345 | tmp = T0; | |
346 | T0 += T1; | |
76e050c2 FB |
347 | if (((tmp ^ T1 ^ (-1)) & (T0 ^ T1)) >> 31) { |
348 | /* operands of same sign, result different sign */ | |
4ad40f36 | 349 | CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW); |
6af0bf9c FB |
350 | } |
351 | RETURN(); | |
352 | } | |
353 | ||
354 | void op_sub (void) | |
355 | { | |
356 | T0 -= T1; | |
357 | RETURN(); | |
358 | } | |
359 | ||
360 | void op_subo (void) | |
361 | { | |
362 | target_ulong tmp; | |
363 | ||
364 | tmp = T0; | |
365 | T0 = (int32_t)T0 - (int32_t)T1; | |
76e050c2 FB |
366 | if (((tmp ^ T1) & (tmp ^ T0)) >> 31) { |
367 | /* operands of different sign, first operand and result different sign */ | |
4ad40f36 | 368 | CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW); |
6af0bf9c FB |
369 | } |
370 | RETURN(); | |
371 | } | |
372 | ||
373 | void op_mul (void) | |
374 | { | |
375 | T0 = (int32_t)T0 * (int32_t)T1; | |
376 | RETURN(); | |
377 | } | |
378 | ||
379 | void op_div (void) | |
380 | { | |
381 | if (T1 != 0) { | |
382 | env->LO = (int32_t)T0 / (int32_t)T1; | |
383 | env->HI = (int32_t)T0 % (int32_t)T1; | |
384 | } | |
385 | RETURN(); | |
386 | } | |
387 | ||
388 | void op_divu (void) | |
389 | { | |
390 | if (T1 != 0) { | |
391 | env->LO = T0 / T1; | |
392 | env->HI = T0 % T1; | |
393 | } | |
394 | RETURN(); | |
395 | } | |
396 | ||
397 | /* Logical */ | |
398 | void op_and (void) | |
399 | { | |
400 | T0 &= T1; | |
401 | RETURN(); | |
402 | } | |
403 | ||
404 | void op_nor (void) | |
405 | { | |
406 | T0 = ~(T0 | T1); | |
407 | RETURN(); | |
408 | } | |
409 | ||
410 | void op_or (void) | |
411 | { | |
412 | T0 |= T1; | |
413 | RETURN(); | |
414 | } | |
415 | ||
416 | void op_xor (void) | |
417 | { | |
418 | T0 ^= T1; | |
419 | RETURN(); | |
420 | } | |
421 | ||
422 | void op_sll (void) | |
423 | { | |
424 | T0 = T0 << T1; | |
425 | RETURN(); | |
426 | } | |
427 | ||
428 | void op_sra (void) | |
429 | { | |
430 | T0 = (int32_t)T0 >> T1; | |
431 | RETURN(); | |
432 | } | |
433 | ||
434 | void op_srl (void) | |
435 | { | |
436 | T0 = T0 >> T1; | |
437 | RETURN(); | |
438 | } | |
439 | ||
440 | void op_sllv (void) | |
441 | { | |
442 | T0 = T1 << (T0 & 0x1F); | |
443 | RETURN(); | |
444 | } | |
445 | ||
446 | void op_srav (void) | |
447 | { | |
448 | T0 = (int32_t)T1 >> (T0 & 0x1F); | |
449 | RETURN(); | |
450 | } | |
451 | ||
452 | void op_srlv (void) | |
453 | { | |
454 | T0 = T1 >> (T0 & 0x1F); | |
455 | RETURN(); | |
456 | } | |
457 | ||
458 | void op_clo (void) | |
459 | { | |
460 | int n; | |
461 | ||
462 | if (T0 == (target_ulong)-1) { | |
463 | T0 = 32; | |
464 | } else { | |
465 | for (n = 0; n < 32; n++) { | |
466 | if (!(T0 & (1 << 31))) | |
467 | break; | |
468 | T0 = T0 << 1; | |
469 | } | |
470 | T0 = n; | |
471 | } | |
472 | RETURN(); | |
473 | } | |
474 | ||
475 | void op_clz (void) | |
476 | { | |
477 | int n; | |
478 | ||
479 | if (T0 == 0) { | |
480 | T0 = 32; | |
481 | } else { | |
482 | for (n = 0; n < 32; n++) { | |
483 | if (T0 & (1 << 31)) | |
484 | break; | |
485 | T0 = T0 << 1; | |
486 | } | |
487 | T0 = n; | |
488 | } | |
489 | RETURN(); | |
490 | } | |
491 | ||
492 | /* 64 bits arithmetic */ | |
493 | #if (HOST_LONG_BITS == 64) | |
494 | static inline uint64_t get_HILO (void) | |
495 | { | |
496 | return ((uint64_t)env->HI << 32) | (uint64_t)env->LO; | |
497 | } | |
498 | ||
499 | static inline void set_HILO (uint64_t HILO) | |
500 | { | |
501 | env->LO = HILO & 0xFFFFFFFF; | |
502 | env->HI = HILO >> 32; | |
503 | } | |
504 | ||
505 | void op_mult (void) | |
506 | { | |
4ad40f36 | 507 | set_HILO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
6af0bf9c FB |
508 | RETURN(); |
509 | } | |
510 | ||
511 | void op_multu (void) | |
512 | { | |
513 | set_HILO((uint64_t)T0 * (uint64_t)T1); | |
514 | RETURN(); | |
515 | } | |
516 | ||
517 | void op_madd (void) | |
518 | { | |
519 | int64_t tmp; | |
520 | ||
4ad40f36 | 521 | tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
6af0bf9c FB |
522 | set_HILO((int64_t)get_HILO() + tmp); |
523 | RETURN(); | |
524 | } | |
525 | ||
526 | void op_maddu (void) | |
527 | { | |
528 | uint64_t tmp; | |
529 | ||
530 | tmp = ((uint64_t)T0 * (uint64_t)T1); | |
531 | set_HILO(get_HILO() + tmp); | |
532 | RETURN(); | |
533 | } | |
534 | ||
535 | void op_msub (void) | |
536 | { | |
537 | int64_t tmp; | |
538 | ||
4ad40f36 | 539 | tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
6af0bf9c FB |
540 | set_HILO((int64_t)get_HILO() - tmp); |
541 | RETURN(); | |
542 | } | |
543 | ||
544 | void op_msubu (void) | |
545 | { | |
546 | uint64_t tmp; | |
547 | ||
548 | tmp = ((uint64_t)T0 * (uint64_t)T1); | |
549 | set_HILO(get_HILO() - tmp); | |
550 | RETURN(); | |
551 | } | |
552 | #else | |
553 | void op_mult (void) | |
554 | { | |
555 | CALL_FROM_TB0(do_mult); | |
556 | RETURN(); | |
557 | } | |
558 | ||
559 | void op_multu (void) | |
560 | { | |
561 | CALL_FROM_TB0(do_multu); | |
562 | RETURN(); | |
563 | } | |
564 | ||
565 | void op_madd (void) | |
566 | { | |
567 | CALL_FROM_TB0(do_madd); | |
568 | RETURN(); | |
569 | } | |
570 | ||
571 | void op_maddu (void) | |
572 | { | |
573 | CALL_FROM_TB0(do_maddu); | |
574 | RETURN(); | |
575 | } | |
576 | ||
577 | void op_msub (void) | |
578 | { | |
579 | CALL_FROM_TB0(do_msub); | |
580 | RETURN(); | |
581 | } | |
582 | ||
583 | void op_msubu (void) | |
584 | { | |
585 | CALL_FROM_TB0(do_msubu); | |
586 | RETURN(); | |
587 | } | |
588 | #endif | |
589 | ||
590 | /* Conditional moves */ | |
591 | void op_movn (void) | |
592 | { | |
593 | if (T1 != 0) | |
594 | env->gpr[PARAM1] = T0; | |
595 | RETURN(); | |
596 | } | |
597 | ||
598 | void op_movz (void) | |
599 | { | |
600 | if (T1 == 0) | |
601 | env->gpr[PARAM1] = T0; | |
602 | RETURN(); | |
603 | } | |
604 | ||
605 | /* Tests */ | |
606 | #define OP_COND(name, cond) \ | |
607 | void glue(op_, name) (void) \ | |
608 | { \ | |
609 | if (cond) { \ | |
610 | T0 = 1; \ | |
611 | } else { \ | |
612 | T0 = 0; \ | |
613 | } \ | |
614 | RETURN(); \ | |
615 | } | |
616 | ||
617 | OP_COND(eq, T0 == T1); | |
618 | OP_COND(ne, T0 != T1); | |
619 | OP_COND(ge, (int32_t)T0 >= (int32_t)T1); | |
620 | OP_COND(geu, T0 >= T1); | |
621 | OP_COND(lt, (int32_t)T0 < (int32_t)T1); | |
622 | OP_COND(ltu, T0 < T1); | |
623 | OP_COND(gez, (int32_t)T0 >= 0); | |
624 | OP_COND(gtz, (int32_t)T0 > 0); | |
625 | OP_COND(lez, (int32_t)T0 <= 0); | |
626 | OP_COND(ltz, (int32_t)T0 < 0); | |
627 | ||
628 | /* Branchs */ | |
629 | //#undef USE_DIRECT_JUMP | |
c53be334 FB |
630 | |
631 | void OPPROTO op_goto_tb0(void) | |
632 | { | |
633 | GOTO_TB(op_goto_tb0, PARAM1, 0); | |
634 | } | |
635 | ||
636 | void OPPROTO op_goto_tb1(void) | |
637 | { | |
638 | GOTO_TB(op_goto_tb1, PARAM1, 1); | |
639 | } | |
6af0bf9c FB |
640 | |
641 | /* Branch to register */ | |
642 | void op_save_breg_target (void) | |
643 | { | |
644 | env->btarget = T2; | |
645 | } | |
646 | ||
647 | void op_restore_breg_target (void) | |
648 | { | |
649 | T2 = env->btarget; | |
650 | } | |
651 | ||
652 | void op_breg (void) | |
653 | { | |
654 | env->PC = T2; | |
655 | RETURN(); | |
656 | } | |
657 | ||
6af0bf9c FB |
658 | void op_save_btarget (void) |
659 | { | |
660 | env->btarget = PARAM1; | |
661 | RETURN(); | |
662 | } | |
663 | ||
664 | /* Conditional branch */ | |
665 | void op_set_bcond (void) | |
666 | { | |
667 | T2 = T0; | |
668 | RETURN(); | |
669 | } | |
670 | ||
671 | void op_save_bcond (void) | |
672 | { | |
673 | env->bcond = T2; | |
674 | RETURN(); | |
675 | } | |
676 | ||
677 | void op_restore_bcond (void) | |
678 | { | |
679 | T2 = env->bcond; | |
680 | RETURN(); | |
681 | } | |
682 | ||
c53be334 | 683 | void op_jnz_T2 (void) |
6af0bf9c | 684 | { |
c53be334 FB |
685 | if (T2) |
686 | GOTO_LABEL_PARAM(1); | |
6af0bf9c FB |
687 | RETURN(); |
688 | } | |
689 | ||
690 | /* CP0 functions */ | |
691 | void op_mfc0 (void) | |
692 | { | |
693 | CALL_FROM_TB2(do_mfc0, PARAM1, PARAM2); | |
694 | RETURN(); | |
695 | } | |
696 | ||
697 | void op_mtc0 (void) | |
698 | { | |
699 | CALL_FROM_TB2(do_mtc0, PARAM1, PARAM2); | |
700 | RETURN(); | |
701 | } | |
702 | ||
6ea83fed FB |
703 | #ifdef MIPS_USES_FPU |
704 | ||
705 | #if 0 | |
706 | # define DEBUG_FPU_STATE() CALL_FROM_TB1(dump_fpu, env) | |
707 | #else | |
708 | # define DEBUG_FPU_STATE() do { } while(0) | |
709 | #endif | |
710 | ||
711 | void op_cp1_enabled(void) | |
712 | { | |
713 | if (!(env->CP0_Status & (1 << CP0St_CU1))) { | |
714 | CALL_FROM_TB2(do_raise_exception_err, EXCP_CpU, 1); | |
715 | } | |
716 | RETURN(); | |
717 | } | |
718 | ||
719 | /* CP1 functions */ | |
720 | void op_cfc1 (void) | |
721 | { | |
722 | if (T1 == 0) { | |
723 | T0 = env->fcr0; | |
724 | } | |
725 | else { | |
726 | /* fetch fcr31, masking unused bits */ | |
727 | T0 = env->fcr31 & 0x0183FFFF; | |
728 | } | |
729 | DEBUG_FPU_STATE(); | |
730 | RETURN(); | |
731 | } | |
732 | ||
733 | /* convert MIPS rounding mode in FCR31 to IEEE library */ | |
734 | unsigned int ieee_rm[] = { | |
735 | float_round_nearest_even, | |
736 | float_round_to_zero, | |
737 | float_round_up, | |
738 | float_round_down | |
739 | }; | |
740 | ||
741 | #define RESTORE_ROUNDING_MODE \ | |
742 | set_float_rounding_mode(ieee_rm[env->fcr31 & 3], &env->fp_status) | |
743 | ||
744 | void op_ctc1 (void) | |
745 | { | |
746 | if (T1 == 0) { | |
747 | /* XXX should this throw an exception? | |
748 | * don't write to FCR0. | |
749 | * env->fcr0 = T0; | |
750 | */ | |
751 | } | |
752 | else { | |
753 | /* store new fcr31, masking unused bits */ | |
754 | env->fcr31 = T0 & 0x0183FFFF; | |
755 | ||
756 | /* set rounding mode */ | |
757 | RESTORE_ROUNDING_MODE; | |
758 | ||
759 | #ifndef CONFIG_SOFTFLOAT | |
760 | /* no floating point exception for native float */ | |
761 | SET_FP_ENABLE(env->fcr31, 0); | |
762 | #endif | |
763 | } | |
764 | DEBUG_FPU_STATE(); | |
765 | RETURN(); | |
766 | } | |
767 | ||
768 | void op_mfc1 (void) | |
769 | { | |
770 | T0 = WT0; | |
771 | DEBUG_FPU_STATE(); | |
772 | RETURN(); | |
773 | } | |
774 | ||
775 | void op_mtc1 (void) | |
776 | { | |
777 | WT0 = T0; | |
778 | DEBUG_FPU_STATE(); | |
779 | RETURN(); | |
780 | } | |
781 | ||
782 | /* Float support. | |
783 | Single precition routines have a "s" suffix, double precision a | |
784 | "d" suffix. */ | |
785 | ||
786 | #define FLOAT_OP(name, p) void OPPROTO op_float_##name##_##p(void) | |
787 | ||
dd016883 FB |
788 | FLOAT_OP(cvtd, s) |
789 | { | |
790 | FDT2 = float32_to_float64(WT0, &env->fp_status); | |
791 | DEBUG_FPU_STATE(); | |
792 | RETURN(); | |
793 | } | |
6ea83fed FB |
794 | FLOAT_OP(cvtd, w) |
795 | { | |
796 | FDT2 = int32_to_float64(WT0, &env->fp_status); | |
797 | DEBUG_FPU_STATE(); | |
798 | RETURN(); | |
799 | } | |
dd016883 FB |
800 | FLOAT_OP(cvts, d) |
801 | { | |
802 | FST2 = float64_to_float32(WT0, &env->fp_status); | |
803 | DEBUG_FPU_STATE(); | |
804 | RETURN(); | |
805 | } | |
6ea83fed FB |
806 | FLOAT_OP(cvts, w) |
807 | { | |
808 | FST2 = int32_to_float32(WT0, &env->fp_status); | |
809 | DEBUG_FPU_STATE(); | |
810 | RETURN(); | |
811 | } | |
812 | FLOAT_OP(cvtw, s) | |
813 | { | |
814 | WT2 = float32_to_int32(FST0, &env->fp_status); | |
815 | DEBUG_FPU_STATE(); | |
816 | RETURN(); | |
817 | } | |
818 | FLOAT_OP(cvtw, d) | |
819 | { | |
820 | WT2 = float64_to_int32(FDT0, &env->fp_status); | |
821 | DEBUG_FPU_STATE(); | |
822 | RETURN(); | |
823 | } | |
824 | ||
825 | FLOAT_OP(roundw, d) | |
826 | { | |
827 | set_float_rounding_mode(float_round_nearest_even, &env->fp_status); | |
828 | WT2 = float64_round_to_int(FDT0, &env->fp_status); | |
829 | RESTORE_ROUNDING_MODE; | |
830 | ||
831 | DEBUG_FPU_STATE(); | |
832 | RETURN(); | |
833 | } | |
834 | FLOAT_OP(roundw, s) | |
835 | { | |
836 | set_float_rounding_mode(float_round_nearest_even, &env->fp_status); | |
837 | WT2 = float32_round_to_int(FST0, &env->fp_status); | |
838 | RESTORE_ROUNDING_MODE; | |
839 | DEBUG_FPU_STATE(); | |
840 | RETURN(); | |
841 | } | |
842 | ||
843 | FLOAT_OP(truncw, d) | |
844 | { | |
845 | WT2 = float64_to_int32_round_to_zero(FDT0, &env->fp_status); | |
846 | DEBUG_FPU_STATE(); | |
847 | RETURN(); | |
848 | } | |
849 | FLOAT_OP(truncw, s) | |
850 | { | |
851 | WT2 = float32_to_int32_round_to_zero(FST0, &env->fp_status); | |
852 | DEBUG_FPU_STATE(); | |
853 | RETURN(); | |
854 | } | |
855 | ||
856 | FLOAT_OP(ceilw, d) | |
857 | { | |
858 | set_float_rounding_mode(float_round_up, &env->fp_status); | |
859 | WT2 = float64_round_to_int(FDT0, &env->fp_status); | |
860 | RESTORE_ROUNDING_MODE; | |
861 | ||
862 | DEBUG_FPU_STATE(); | |
863 | RETURN(); | |
864 | } | |
865 | FLOAT_OP(ceilw, s) | |
866 | { | |
867 | set_float_rounding_mode(float_round_up, &env->fp_status); | |
868 | WT2 = float32_round_to_int(FST0, &env->fp_status); | |
869 | RESTORE_ROUNDING_MODE; | |
870 | DEBUG_FPU_STATE(); | |
871 | RETURN(); | |
872 | } | |
873 | ||
874 | FLOAT_OP(floorw, d) | |
875 | { | |
876 | set_float_rounding_mode(float_round_down, &env->fp_status); | |
877 | WT2 = float64_round_to_int(FDT0, &env->fp_status); | |
878 | RESTORE_ROUNDING_MODE; | |
879 | ||
880 | DEBUG_FPU_STATE(); | |
881 | RETURN(); | |
882 | } | |
883 | FLOAT_OP(floorw, s) | |
884 | { | |
885 | set_float_rounding_mode(float_round_down, &env->fp_status); | |
886 | WT2 = float32_round_to_int(FST0, &env->fp_status); | |
887 | RESTORE_ROUNDING_MODE; | |
888 | DEBUG_FPU_STATE(); | |
889 | RETURN(); | |
890 | } | |
891 | ||
892 | /* binary operations */ | |
893 | #define FLOAT_BINOP(name) \ | |
894 | FLOAT_OP(name, d) \ | |
895 | { \ | |
896 | FDT2 = float64_ ## name (FDT0, FDT1, &env->fp_status); \ | |
897 | DEBUG_FPU_STATE(); \ | |
898 | } \ | |
899 | FLOAT_OP(name, s) \ | |
900 | { \ | |
901 | FST2 = float32_ ## name (FST0, FST1, &env->fp_status); \ | |
902 | DEBUG_FPU_STATE(); \ | |
903 | } | |
904 | FLOAT_BINOP(add) | |
905 | FLOAT_BINOP(sub) | |
906 | FLOAT_BINOP(mul) | |
907 | FLOAT_BINOP(div) | |
908 | #undef FLOAT_BINOP | |
909 | ||
910 | /* unary operations, modifying fp status */ | |
911 | #define FLOAT_UNOP(name) \ | |
912 | FLOAT_OP(name, d) \ | |
913 | { \ | |
914 | FDT2 = float64_ ## name(FDT0, &env->fp_status); \ | |
915 | DEBUG_FPU_STATE(); \ | |
916 | } \ | |
917 | FLOAT_OP(name, s) \ | |
918 | { \ | |
919 | FST2 = float32_ ## name(FST0, &env->fp_status); \ | |
920 | DEBUG_FPU_STATE(); \ | |
921 | } | |
922 | FLOAT_UNOP(sqrt) | |
923 | #undef FLOAT_UNOP | |
924 | ||
925 | /* unary operations, not modifying fp status */ | |
926 | #define FLOAT_UNOP(name) \ | |
927 | FLOAT_OP(name, d) \ | |
928 | { \ | |
929 | FDT2 = float64_ ## name(FDT0); \ | |
930 | DEBUG_FPU_STATE(); \ | |
931 | } \ | |
932 | FLOAT_OP(name, s) \ | |
933 | { \ | |
934 | FST2 = float32_ ## name(FST0); \ | |
935 | DEBUG_FPU_STATE(); \ | |
936 | } | |
937 | FLOAT_UNOP(abs) | |
938 | FLOAT_UNOP(chs) | |
939 | #undef FLOAT_UNOP | |
940 | ||
941 | FLOAT_OP(mov, d) | |
942 | { | |
943 | FDT2 = FDT0; | |
944 | DEBUG_FPU_STATE(); | |
945 | RETURN(); | |
946 | } | |
947 | FLOAT_OP(mov, s) | |
948 | { | |
949 | FST2 = FST0; | |
950 | DEBUG_FPU_STATE(); | |
951 | RETURN(); | |
952 | } | |
953 | ||
954 | #ifdef CONFIG_SOFTFLOAT | |
955 | #define clear_invalid() do { \ | |
956 | int flags = get_float_exception_flags(&env->fp_status); \ | |
957 | flags &= ~float_flag_invalid; \ | |
958 | set_float_exception_flags(flags, &env->fp_status); \ | |
959 | } while(0) | |
960 | #else | |
961 | #define clear_invalid() do { } while(0) | |
962 | #endif | |
963 | ||
964 | extern void dump_fpu_s(CPUState *env); | |
965 | ||
966 | #define FOP_COND(fmt, op, sig, cond) \ | |
967 | void op_cmp_ ## fmt ## _ ## op (void) \ | |
968 | { \ | |
969 | if (cond) \ | |
970 | SET_FP_COND(env->fcr31); \ | |
971 | else \ | |
972 | CLEAR_FP_COND(env->fcr31); \ | |
973 | if (!sig) \ | |
974 | clear_invalid(); \ | |
975 | /*CALL_FROM_TB1(dump_fpu_s, env);*/ \ | |
976 | DEBUG_FPU_STATE(); \ | |
977 | RETURN(); \ | |
978 | } | |
979 | ||
569f5d66 | 980 | int float64_is_unordered(float64 a, float64 b STATUS_PARAM) |
6ea83fed | 981 | { |
6ea83fed FB |
982 | if (float64_is_nan(a) || float64_is_nan(b)) { |
983 | float_raise(float_flag_invalid, status); | |
984 | return 1; | |
985 | } | |
986 | else { | |
987 | return 0; | |
988 | } | |
989 | } | |
990 | ||
991 | FOP_COND(d, f, 0, 0) | |
992 | FOP_COND(d, un, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status)) | |
993 | FOP_COND(d, eq, 0, float64_eq(FDT0, FDT1, &env->fp_status)) | |
994 | FOP_COND(d, ueq, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_eq(FDT0, FDT1, &env->fp_status)) | |
995 | FOP_COND(d, olt, 0, float64_lt(FDT0, FDT1, &env->fp_status)) | |
996 | FOP_COND(d, ult, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_lt(FDT0, FDT1, &env->fp_status)) | |
997 | FOP_COND(d, ole, 0, float64_le(FDT0, FDT1, &env->fp_status)) | |
998 | FOP_COND(d, ule, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_le(FDT0, FDT1, &env->fp_status)) | |
999 | /* NOTE: the comma operator will make "cond" to eval to false, | |
1000 | * but float*_is_unordered() is still called | |
1001 | */ | |
1002 | FOP_COND(d, sf, 1, (float64_is_unordered(FDT0, FDT1, &env->fp_status), 0)) | |
1003 | FOP_COND(d, ngle,1, float64_is_unordered(FDT1, FDT0, &env->fp_status)) | |
1004 | FOP_COND(d, seq, 1, float64_eq(FDT0, FDT1, &env->fp_status)) | |
1005 | FOP_COND(d, ngl, 1, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_eq(FDT0, FDT1, &env->fp_status)) | |
1006 | FOP_COND(d, lt, 1, float64_lt(FDT0, FDT1, &env->fp_status)) | |
1007 | FOP_COND(d, nge, 1, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_lt(FDT0, FDT1, &env->fp_status)) | |
1008 | FOP_COND(d, le, 1, float64_le(FDT0, FDT1, &env->fp_status)) | |
1009 | FOP_COND(d, ngt, 1, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_le(FDT0, FDT1, &env->fp_status)) | |
1010 | ||
1011 | flag float32_is_unordered(float32 a, float32 b STATUS_PARAM) | |
1012 | { | |
1013 | extern flag float32_is_nan( float32 a ); | |
1014 | if (float32_is_nan(a) || float32_is_nan(b)) { | |
1015 | float_raise(float_flag_invalid, status); | |
1016 | return 1; | |
1017 | } | |
1018 | else { | |
1019 | return 0; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | /* NOTE: the comma operator will make "cond" to eval to false, | |
1024 | * but float*_is_unordered() is still called | |
1025 | */ | |
1026 | FOP_COND(s, f, 0, 0) | |
1027 | FOP_COND(s, un, 0, float32_is_unordered(FST1, FST0, &env->fp_status)) | |
1028 | FOP_COND(s, eq, 0, float32_eq(FST0, FST1, &env->fp_status)) | |
1029 | FOP_COND(s, ueq, 0, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status)) | |
1030 | FOP_COND(s, olt, 0, float32_lt(FST0, FST1, &env->fp_status)) | |
1031 | FOP_COND(s, ult, 0, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status)) | |
1032 | FOP_COND(s, ole, 0, float32_le(FST0, FST1, &env->fp_status)) | |
1033 | FOP_COND(s, ule, 0, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status)) | |
1034 | /* NOTE: the comma operator will make "cond" to eval to false, | |
1035 | * but float*_is_unordered() is still called | |
1036 | */ | |
1037 | FOP_COND(s, sf, 1, (float32_is_unordered(FST0, FST1, &env->fp_status), 0)) | |
1038 | FOP_COND(s, ngle,1, float32_is_unordered(FST1, FST0, &env->fp_status)) | |
1039 | FOP_COND(s, seq, 1, float32_eq(FST0, FST1, &env->fp_status)) | |
1040 | FOP_COND(s, ngl, 1, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status)) | |
1041 | FOP_COND(s, lt, 1, float32_lt(FST0, FST1, &env->fp_status)) | |
1042 | FOP_COND(s, nge, 1, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status)) | |
1043 | FOP_COND(s, le, 1, float32_le(FST0, FST1, &env->fp_status)) | |
1044 | FOP_COND(s, ngt, 1, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status)) | |
1045 | ||
1046 | void op_bc1f (void) | |
1047 | { | |
1048 | T0 = ! IS_FP_COND_SET(env->fcr31); | |
1049 | DEBUG_FPU_STATE(); | |
1050 | RETURN(); | |
1051 | } | |
1052 | ||
1053 | void op_bc1t (void) | |
1054 | { | |
1055 | T0 = IS_FP_COND_SET(env->fcr31); | |
1056 | DEBUG_FPU_STATE(); | |
1057 | RETURN(); | |
1058 | } | |
1059 | #endif /* MIPS_USES_FPU */ | |
1060 | ||
6af0bf9c FB |
1061 | #if defined(MIPS_USES_R4K_TLB) |
1062 | void op_tlbwi (void) | |
1063 | { | |
1064 | CALL_FROM_TB0(do_tlbwi); | |
1065 | RETURN(); | |
1066 | } | |
1067 | ||
1068 | void op_tlbwr (void) | |
1069 | { | |
1070 | CALL_FROM_TB0(do_tlbwr); | |
1071 | RETURN(); | |
1072 | } | |
1073 | ||
1074 | void op_tlbp (void) | |
1075 | { | |
1076 | CALL_FROM_TB0(do_tlbp); | |
1077 | RETURN(); | |
1078 | } | |
1079 | ||
1080 | void op_tlbr (void) | |
1081 | { | |
1082 | CALL_FROM_TB0(do_tlbr); | |
1083 | RETURN(); | |
1084 | } | |
1085 | #endif | |
1086 | ||
1087 | /* Specials */ | |
1088 | void op_pmon (void) | |
1089 | { | |
1090 | CALL_FROM_TB1(do_pmon, PARAM1); | |
1091 | } | |
1092 | ||
1093 | void op_trap (void) | |
1094 | { | |
1095 | if (T0) { | |
4ad40f36 | 1096 | CALL_FROM_TB1(do_raise_exception_direct, EXCP_TRAP); |
6af0bf9c FB |
1097 | } |
1098 | RETURN(); | |
1099 | } | |
1100 | ||
4ad40f36 FB |
1101 | void op_debug (void) |
1102 | { | |
ce2f4b3c | 1103 | CALL_FROM_TB1(do_raise_exception, EXCP_DEBUG); |
4ad40f36 FB |
1104 | } |
1105 | ||
6af0bf9c FB |
1106 | void op_set_lladdr (void) |
1107 | { | |
1108 | env->CP0_LLAddr = T2; | |
1109 | } | |
1110 | ||
1111 | void debug_eret (void); | |
1112 | void op_eret (void) | |
1113 | { | |
1114 | CALL_FROM_TB0(debug_eret); | |
51e11d9e | 1115 | if (env->hflags & MIPS_HFLAG_ERL) { |
6af0bf9c | 1116 | env->PC = env->CP0_ErrorEPC; |
51e11d9e | 1117 | env->hflags &= ~MIPS_HFLAG_ERL; |
3e382bc8 | 1118 | env->CP0_Status &= ~(1 << CP0St_ERL); |
51e11d9e | 1119 | } else { |
6af0bf9c | 1120 | env->PC = env->CP0_EPC; |
51e11d9e | 1121 | env->hflags &= ~MIPS_HFLAG_EXL; |
3e382bc8 | 1122 | env->CP0_Status &= ~(1 << CP0St_EXL); |
51e11d9e | 1123 | } |
6af0bf9c FB |
1124 | env->CP0_LLAddr = 1; |
1125 | } | |
1126 | ||
1127 | void op_deret (void) | |
1128 | { | |
1129 | CALL_FROM_TB0(debug_eret); | |
1130 | env->PC = env->CP0_DEPC; | |
1131 | } | |
1132 | ||
1133 | void op_save_state (void) | |
1134 | { | |
1135 | env->hflags = PARAM1; | |
1136 | RETURN(); | |
1137 | } | |
1138 | ||
1139 | void op_save_pc (void) | |
1140 | { | |
1141 | env->PC = PARAM1; | |
1142 | RETURN(); | |
1143 | } | |
1144 | ||
1145 | void op_raise_exception (void) | |
1146 | { | |
1147 | CALL_FROM_TB1(do_raise_exception, PARAM1); | |
1148 | RETURN(); | |
1149 | } | |
1150 | ||
1151 | void op_raise_exception_err (void) | |
1152 | { | |
1153 | CALL_FROM_TB2(do_raise_exception_err, PARAM1, PARAM2); | |
1154 | RETURN(); | |
1155 | } | |
1156 | ||
1157 | void op_exit_tb (void) | |
1158 | { | |
1159 | EXIT_TB(); | |
1160 | } | |
1161 | ||
4ad40f36 FB |
1162 | void op_wait (void) |
1163 | { | |
1164 | env->halted = 1; | |
1165 | CALL_FROM_TB1(do_raise_exception, EXCP_HLT); | |
1166 | } |