1 /*
2 * MIPS emulation helpers for qemu.
3 *
4 * Copyright (c) 2004-2005 Jocelyn Mayer
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #include "qemu/osdep.h"
20 #include "qemu/main-loop.h"
21 #include "cpu.h"
22 #include "internal.h"
23 #include "qemu/host-utils.h"
24 #include "exec/helper-proto.h"
25 #include "exec/exec-all.h"
26 #include "exec/cpu_ldst.h"
27 #include "sysemu/kvm.h"
28
29 /*****************************************************************************/
30 /* Exceptions processing helpers */
31
helper_raise_exception_err(CPUMIPSState * env,uint32_t exception,int error_code)32 void helper_raise_exception_err(CPUMIPSState *env, uint32_t exception,
33 int error_code)
34 {
35 do_raise_exception_err(env, exception, error_code, 0);
36 }
37
helper_raise_exception(CPUMIPSState * env,uint32_t exception)38 void helper_raise_exception(CPUMIPSState *env, uint32_t exception)
39 {
40 do_raise_exception(env, exception, GETPC());
41 }
42
helper_raise_exception_debug(CPUMIPSState * env)43 void helper_raise_exception_debug(CPUMIPSState *env)
44 {
45 do_raise_exception(env, EXCP_DEBUG, 0);
46 }
47
raise_exception(CPUMIPSState * env,uint32_t exception)48 static void raise_exception(CPUMIPSState *env, uint32_t exception)
49 {
50 do_raise_exception(env, exception, 0);
51 }
52
53 #if defined(CONFIG_USER_ONLY)
54 #define HELPER_LD(name, insn, type) \
55 static inline type do_##name(CPUMIPSState *env, target_ulong addr, \
56 int mem_idx, uintptr_t retaddr) \
57 { \
58 return (type) cpu_##insn##_data_ra(env, addr, retaddr); \
59 }
60 #else
61 #define HELPER_LD(name, insn, type) \
62 static inline type do_##name(CPUMIPSState *env, target_ulong addr, \
63 int mem_idx, uintptr_t retaddr) \
64 { \
65 switch (mem_idx) \
66 { \
67 case 0: return (type) cpu_##insn##_kernel_ra(env, addr, retaddr); \
68 case 1: return (type) cpu_##insn##_super_ra(env, addr, retaddr); \
69 default: \
70 case 2: return (type) cpu_##insn##_user_ra(env, addr, retaddr); \
71 case 3: return (type) cpu_##insn##_error_ra(env, addr, retaddr); \
72 } \
73 }
74 #endif
HELPER_LD(lw,ldl,int32_t)75 HELPER_LD(lw, ldl, int32_t)
76 #if defined(TARGET_MIPS64)
77 HELPER_LD(ld, ldq, int64_t)
78 #endif
79 #undef HELPER_LD
80
81 #if defined(CONFIG_USER_ONLY)
82 #define HELPER_ST(name, insn, type) \
83 static inline void do_##name(CPUMIPSState *env, target_ulong addr, \
84 type val, int mem_idx, uintptr_t retaddr) \
85 { \
86 cpu_##insn##_data_ra(env, addr, val, retaddr); \
87 }
88 #else
89 #define HELPER_ST(name, insn, type) \
90 static inline void do_##name(CPUMIPSState *env, target_ulong addr, \
91 type val, int mem_idx, uintptr_t retaddr) \
92 { \
93 switch (mem_idx) \
94 { \
95 case 0: cpu_##insn##_kernel_ra(env, addr, val, retaddr); break; \
96 case 1: cpu_##insn##_super_ra(env, addr, val, retaddr); break; \
97 default: \
98 case 2: cpu_##insn##_user_ra(env, addr, val, retaddr); break; \
99 case 3: \
100 cpu_##insn##_error_ra(env, addr, val, retaddr); \
101 break; \
102 } \
103 }
104 #endif
105 HELPER_ST(sb, stb, uint8_t)
106 HELPER_ST(sw, stl, uint32_t)
107 #if defined(TARGET_MIPS64)
108 HELPER_ST(sd, stq, uint64_t)
109 #endif
110 #undef HELPER_ST
111
112 /* 64 bits arithmetic for 32 bits hosts */
113 static inline uint64_t get_HILO(CPUMIPSState *env)
114 {
115 return ((uint64_t)(env->active_tc.HI[0]) << 32) | (uint32_t)env->active_tc.LO[0];
116 }
117
set_HIT0_LO(CPUMIPSState * env,uint64_t HILO)118 static inline target_ulong set_HIT0_LO(CPUMIPSState *env, uint64_t HILO)
119 {
120 env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
121 return env->active_tc.HI[0] = (int32_t)(HILO >> 32);
122 }
123
set_HI_LOT0(CPUMIPSState * env,uint64_t HILO)124 static inline target_ulong set_HI_LOT0(CPUMIPSState *env, uint64_t HILO)
125 {
126 target_ulong tmp = env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
127 env->active_tc.HI[0] = (int32_t)(HILO >> 32);
128 return tmp;
129 }
130
131 /* Multiplication variants of the vr54xx. */
helper_muls(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)132 target_ulong helper_muls(CPUMIPSState *env, target_ulong arg1,
133 target_ulong arg2)
134 {
135 return set_HI_LOT0(env, 0 - ((int64_t)(int32_t)arg1 *
136 (int64_t)(int32_t)arg2));
137 }
138
helper_mulsu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)139 target_ulong helper_mulsu(CPUMIPSState *env, target_ulong arg1,
140 target_ulong arg2)
141 {
142 return set_HI_LOT0(env, 0 - (uint64_t)(uint32_t)arg1 *
143 (uint64_t)(uint32_t)arg2);
144 }
145
helper_macc(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)146 target_ulong helper_macc(CPUMIPSState *env, target_ulong arg1,
147 target_ulong arg2)
148 {
149 return set_HI_LOT0(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
150 (int64_t)(int32_t)arg2);
151 }
152
helper_macchi(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)153 target_ulong helper_macchi(CPUMIPSState *env, target_ulong arg1,
154 target_ulong arg2)
155 {
156 return set_HIT0_LO(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
157 (int64_t)(int32_t)arg2);
158 }
159
helper_maccu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)160 target_ulong helper_maccu(CPUMIPSState *env, target_ulong arg1,
161 target_ulong arg2)
162 {
163 return set_HI_LOT0(env, (uint64_t)get_HILO(env) +
164 (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
165 }
166
helper_macchiu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)167 target_ulong helper_macchiu(CPUMIPSState *env, target_ulong arg1,
168 target_ulong arg2)
169 {
170 return set_HIT0_LO(env, (uint64_t)get_HILO(env) +
171 (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
172 }
173
helper_msac(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)174 target_ulong helper_msac(CPUMIPSState *env, target_ulong arg1,
175 target_ulong arg2)
176 {
177 return set_HI_LOT0(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
178 (int64_t)(int32_t)arg2);
179 }
180
helper_msachi(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)181 target_ulong helper_msachi(CPUMIPSState *env, target_ulong arg1,
182 target_ulong arg2)
183 {
184 return set_HIT0_LO(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
185 (int64_t)(int32_t)arg2);
186 }
187
helper_msacu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)188 target_ulong helper_msacu(CPUMIPSState *env, target_ulong arg1,
189 target_ulong arg2)
190 {
191 return set_HI_LOT0(env, (uint64_t)get_HILO(env) -
192 (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
193 }
194
helper_msachiu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)195 target_ulong helper_msachiu(CPUMIPSState *env, target_ulong arg1,
196 target_ulong arg2)
197 {
198 return set_HIT0_LO(env, (uint64_t)get_HILO(env) -
199 (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
200 }
201
helper_mulhi(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)202 target_ulong helper_mulhi(CPUMIPSState *env, target_ulong arg1,
203 target_ulong arg2)
204 {
205 return set_HIT0_LO(env, (int64_t)(int32_t)arg1 * (int64_t)(int32_t)arg2);
206 }
207
helper_mulhiu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)208 target_ulong helper_mulhiu(CPUMIPSState *env, target_ulong arg1,
209 target_ulong arg2)
210 {
211 return set_HIT0_LO(env, (uint64_t)(uint32_t)arg1 *
212 (uint64_t)(uint32_t)arg2);
213 }
214
helper_mulshi(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)215 target_ulong helper_mulshi(CPUMIPSState *env, target_ulong arg1,
216 target_ulong arg2)
217 {
218 return set_HIT0_LO(env, 0 - (int64_t)(int32_t)arg1 *
219 (int64_t)(int32_t)arg2);
220 }
221
helper_mulshiu(CPUMIPSState * env,target_ulong arg1,target_ulong arg2)222 target_ulong helper_mulshiu(CPUMIPSState *env, target_ulong arg1,
223 target_ulong arg2)
224 {
225 return set_HIT0_LO(env, 0 - (uint64_t)(uint32_t)arg1 *
226 (uint64_t)(uint32_t)arg2);
227 }
228
bitswap(target_ulong v)229 static inline target_ulong bitswap(target_ulong v)
230 {
231 v = ((v >> 1) & (target_ulong)0x5555555555555555ULL) |
232 ((v & (target_ulong)0x5555555555555555ULL) << 1);
233 v = ((v >> 2) & (target_ulong)0x3333333333333333ULL) |
234 ((v & (target_ulong)0x3333333333333333ULL) << 2);
235 v = ((v >> 4) & (target_ulong)0x0F0F0F0F0F0F0F0FULL) |
236 ((v & (target_ulong)0x0F0F0F0F0F0F0F0FULL) << 4);
237 return v;
238 }
239
240 #ifdef TARGET_MIPS64
helper_dbitswap(target_ulong rt)241 target_ulong helper_dbitswap(target_ulong rt)
242 {
243 return bitswap(rt);
244 }
245 #endif
246
helper_bitswap(target_ulong rt)247 target_ulong helper_bitswap(target_ulong rt)
248 {
249 return (int32_t)bitswap(rt);
250 }
251
helper_rotx(target_ulong rs,uint32_t shift,uint32_t shiftx,uint32_t stripe)252 target_ulong helper_rotx(target_ulong rs, uint32_t shift, uint32_t shiftx,
253 uint32_t stripe)
254 {
255 int i;
256 uint64_t tmp0 = ((uint64_t)rs) << 32 | ((uint64_t)rs & 0xffffffff);
257 uint64_t tmp1 = tmp0;
258 for (i = 0; i <= 46; i++) {
259 int s;
260 if (i & 0x8) {
261 s = shift;
262 } else {
263 s = shiftx;
264 }
265
266 if (stripe != 0 && !(i & 0x4)) {
267 s = ~s;
268 }
269 if (s & 0x10) {
270 if (tmp0 & (1LL << (i + 16))) {
271 tmp1 |= 1LL << i;
272 } else {
273 tmp1 &= ~(1LL << i);
274 }
275 }
276 }
277
278 uint64_t tmp2 = tmp1;
279 for (i = 0; i <= 38; i++) {
280 int s;
281 if (i & 0x4) {
282 s = shift;
283 } else {
284 s = shiftx;
285 }
286
287 if (s & 0x8) {
288 if (tmp1 & (1LL << (i + 8))) {
289 tmp2 |= 1LL << i;
290 } else {
291 tmp2 &= ~(1LL << i);
292 }
293 }
294 }
295
296 uint64_t tmp3 = tmp2;
297 for (i = 0; i <= 34; i++) {
298 int s;
299 if (i & 0x2) {
300 s = shift;
301 } else {
302 s = shiftx;
303 }
304 if (s & 0x4) {
305 if (tmp2 & (1LL << (i + 4))) {
306 tmp3 |= 1LL << i;
307 } else {
308 tmp3 &= ~(1LL << i);
309 }
310 }
311 }
312
313 uint64_t tmp4 = tmp3;
314 for (i = 0; i <= 32; i++) {
315 int s;
316 if (i & 0x1) {
317 s = shift;
318 } else {
319 s = shiftx;
320 }
321 if (s & 0x2) {
322 if (tmp3 & (1LL << (i + 2))) {
323 tmp4 |= 1LL << i;
324 } else {
325 tmp4 &= ~(1LL << i);
326 }
327 }
328 }
329
330 uint64_t tmp5 = tmp4;
331 for (i = 0; i <= 31; i++) {
332 int s;
333 s = shift;
334 if (s & 0x1) {
335 if (tmp4 & (1LL << (i + 1))) {
336 tmp5 |= 1LL << i;
337 } else {
338 tmp5 &= ~(1LL << i);
339 }
340 }
341 }
342
343 return (int64_t)(int32_t)(uint32_t)tmp5;
344 }
345
346 #ifndef CONFIG_USER_ONLY
347
do_translate_address(CPUMIPSState * env,target_ulong address,int rw,uintptr_t retaddr)348 static inline hwaddr do_translate_address(CPUMIPSState *env,
349 target_ulong address,
350 int rw, uintptr_t retaddr)
351 {
352 hwaddr lladdr;
353 CPUState *cs = CPU(mips_env_get_cpu(env));
354
355 lladdr = cpu_mips_translate_address(env, address, rw);
356
357 if (lladdr == -1LL) {
358 cpu_loop_exit_restore(cs, retaddr);
359 } else {
360 return lladdr;
361 }
362 }
363
364 #define HELPER_LD_ATOMIC(name, insn, almask) \
365 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg, int mem_idx) \
366 { \
367 if (arg & almask) { \
368 if (!(env->hflags & MIPS_HFLAG_DM)) { \
369 env->CP0_BadVAddr = arg; \
370 } \
371 do_raise_exception(env, EXCP_AdEL, GETPC()); \
372 } \
373 env->lladdr = do_translate_address(env, arg, 0, GETPC()); \
374 env->llval = do_##insn(env, arg, mem_idx, GETPC()); \
375 return env->llval; \
376 }
377 HELPER_LD_ATOMIC(ll, lw, 0x3)
378 #ifdef TARGET_MIPS64
379 HELPER_LD_ATOMIC(lld, ld, 0x7)
380 #endif
381 #undef HELPER_LD_ATOMIC
382
383 #define HELPER_ST_ATOMIC(name, ld_insn, st_insn, almask) \
384 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg1, \
385 target_ulong arg2, int mem_idx) \
386 { \
387 target_long tmp; \
388 \
389 if (arg2 & almask) { \
390 if (!(env->hflags & MIPS_HFLAG_DM)) { \
391 env->CP0_BadVAddr = arg2; \
392 } \
393 do_raise_exception(env, EXCP_AdES, GETPC()); \
394 } \
395 if (do_translate_address(env, arg2, 1, GETPC()) == env->lladdr) { \
396 tmp = do_##ld_insn(env, arg2, mem_idx, GETPC()); \
397 if (tmp == env->llval) { \
398 do_##st_insn(env, arg2, arg1, mem_idx, GETPC()); \
399 return 1; \
400 } \
401 } \
402 return 0; \
403 }
404 HELPER_ST_ATOMIC(sc, lw, sw, 0x3)
405 #ifdef TARGET_MIPS64
406 HELPER_ST_ATOMIC(scd, ld, sd, 0x7)
407 #endif
408 #undef HELPER_ST_ATOMIC
409 #endif
410
411 #ifdef TARGET_WORDS_BIGENDIAN
412 #define GET_LMASK(v) ((v) & 3)
413 #define GET_OFFSET(addr, offset) (addr + (offset))
414 #else
415 #define GET_LMASK(v) (((v) & 3) ^ 3)
416 #define GET_OFFSET(addr, offset) (addr - (offset))
417 #endif
418
helper_swl(CPUMIPSState * env,target_ulong arg1,target_ulong arg2,int mem_idx)419 void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
420 int mem_idx)
421 {
422 do_sb(env, arg2, (uint8_t)(arg1 >> 24), mem_idx, GETPC());
423
424 if (GET_LMASK(arg2) <= 2) {
425 do_sb(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 16), mem_idx,
426 GETPC());
427 }
428
429 if (GET_LMASK(arg2) <= 1) {
430 do_sb(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 8), mem_idx,
431 GETPC());
432 }
433
434 if (GET_LMASK(arg2) == 0) {
435 do_sb(env, GET_OFFSET(arg2, 3), (uint8_t)arg1, mem_idx,
436 GETPC());
437 }
438 }
439
helper_swr(CPUMIPSState * env,target_ulong arg1,target_ulong arg2,int mem_idx)440 void helper_swr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
441 int mem_idx)
442 {
443 do_sb(env, arg2, (uint8_t)arg1, mem_idx, GETPC());
444
445 if (GET_LMASK(arg2) >= 1) {
446 do_sb(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8), mem_idx,
447 GETPC());
448 }
449
450 if (GET_LMASK(arg2) >= 2) {
451 do_sb(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16), mem_idx,
452 GETPC());
453 }
454
455 if (GET_LMASK(arg2) == 3) {
456 do_sb(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24), mem_idx,
457 GETPC());
458 }
459 }
460
461 #if defined(TARGET_MIPS64)
462 /* "half" load and stores. We must do the memory access inline,
463 or fault handling won't work. */
464
465 #ifdef TARGET_WORDS_BIGENDIAN
466 #define GET_LMASK64(v) ((v) & 7)
467 #else
468 #define GET_LMASK64(v) (((v) & 7) ^ 7)
469 #endif
470
helper_sdl(CPUMIPSState * env,target_ulong arg1,target_ulong arg2,int mem_idx)471 void helper_sdl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
472 int mem_idx)
473 {
474 do_sb(env, arg2, (uint8_t)(arg1 >> 56), mem_idx, GETPC());
475
476 if (GET_LMASK64(arg2) <= 6) {
477 do_sb(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 48), mem_idx,
478 GETPC());
479 }
480
481 if (GET_LMASK64(arg2) <= 5) {
482 do_sb(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 40), mem_idx,
483 GETPC());
484 }
485
486 if (GET_LMASK64(arg2) <= 4) {
487 do_sb(env, GET_OFFSET(arg2, 3), (uint8_t)(arg1 >> 32), mem_idx,
488 GETPC());
489 }
490
491 if (GET_LMASK64(arg2) <= 3) {
492 do_sb(env, GET_OFFSET(arg2, 4), (uint8_t)(arg1 >> 24), mem_idx,
493 GETPC());
494 }
495
496 if (GET_LMASK64(arg2) <= 2) {
497 do_sb(env, GET_OFFSET(arg2, 5), (uint8_t)(arg1 >> 16), mem_idx,
498 GETPC());
499 }
500
501 if (GET_LMASK64(arg2) <= 1) {
502 do_sb(env, GET_OFFSET(arg2, 6), (uint8_t)(arg1 >> 8), mem_idx,
503 GETPC());
504 }
505
506 if (GET_LMASK64(arg2) <= 0) {
507 do_sb(env, GET_OFFSET(arg2, 7), (uint8_t)arg1, mem_idx,
508 GETPC());
509 }
510 }
511
helper_sdr(CPUMIPSState * env,target_ulong arg1,target_ulong arg2,int mem_idx)512 void helper_sdr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
513 int mem_idx)
514 {
515 do_sb(env, arg2, (uint8_t)arg1, mem_idx, GETPC());
516
517 if (GET_LMASK64(arg2) >= 1) {
518 do_sb(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8), mem_idx,
519 GETPC());
520 }
521
522 if (GET_LMASK64(arg2) >= 2) {
523 do_sb(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16), mem_idx,
524 GETPC());
525 }
526
527 if (GET_LMASK64(arg2) >= 3) {
528 do_sb(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24), mem_idx,
529 GETPC());
530 }
531
532 if (GET_LMASK64(arg2) >= 4) {
533 do_sb(env, GET_OFFSET(arg2, -4), (uint8_t)(arg1 >> 32), mem_idx,
534 GETPC());
535 }
536
537 if (GET_LMASK64(arg2) >= 5) {
538 do_sb(env, GET_OFFSET(arg2, -5), (uint8_t)(arg1 >> 40), mem_idx,
539 GETPC());
540 }
541
542 if (GET_LMASK64(arg2) >= 6) {
543 do_sb(env, GET_OFFSET(arg2, -6), (uint8_t)(arg1 >> 48), mem_idx,
544 GETPC());
545 }
546
547 if (GET_LMASK64(arg2) == 7) {
548 do_sb(env, GET_OFFSET(arg2, -7), (uint8_t)(arg1 >> 56), mem_idx,
549 GETPC());
550 }
551 }
552 #endif /* TARGET_MIPS64 */
553
554 static const int multiple_regs[] = { 16, 17, 18, 19, 20, 21, 22, 23, 30 };
555
helper_lwm(CPUMIPSState * env,target_ulong addr,target_ulong reglist,uint32_t mem_idx)556 void helper_lwm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
557 uint32_t mem_idx)
558 {
559 target_ulong base_reglist = reglist & 0xf;
560 target_ulong do_r31 = reglist & 0x10;
561
562 if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
563 target_ulong i;
564
565 for (i = 0; i < base_reglist; i++) {
566 env->active_tc.gpr[multiple_regs[i]] =
567 (target_long)do_lw(env, addr, mem_idx, GETPC());
568 addr += 4;
569 }
570 }
571
572 if (do_r31) {
573 env->active_tc.gpr[31] = (target_long)do_lw(env, addr, mem_idx,
574 GETPC());
575 }
576 }
577
helper_swm(CPUMIPSState * env,target_ulong addr,target_ulong reglist,uint32_t mem_idx)578 void helper_swm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
579 uint32_t mem_idx)
580 {
581 target_ulong base_reglist = reglist & 0xf;
582 target_ulong do_r31 = reglist & 0x10;
583
584 if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
585 target_ulong i;
586
587 for (i = 0; i < base_reglist; i++) {
588 do_sw(env, addr, env->active_tc.gpr[multiple_regs[i]], mem_idx,
589 GETPC());
590 addr += 4;
591 }
592 }
593
594 if (do_r31) {
595 do_sw(env, addr, env->active_tc.gpr[31], mem_idx, GETPC());
596 }
597 }
598
599 #if defined(TARGET_MIPS64)
helper_ldm(CPUMIPSState * env,target_ulong addr,target_ulong reglist,uint32_t mem_idx)600 void helper_ldm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
601 uint32_t mem_idx)
602 {
603 target_ulong base_reglist = reglist & 0xf;
604 target_ulong do_r31 = reglist & 0x10;
605
606 if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
607 target_ulong i;
608
609 for (i = 0; i < base_reglist; i++) {
610 env->active_tc.gpr[multiple_regs[i]] = do_ld(env, addr, mem_idx,
611 GETPC());
612 addr += 8;
613 }
614 }
615
616 if (do_r31) {
617 env->active_tc.gpr[31] = do_ld(env, addr, mem_idx, GETPC());
618 }
619 }
620
helper_sdm(CPUMIPSState * env,target_ulong addr,target_ulong reglist,uint32_t mem_idx)621 void helper_sdm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
622 uint32_t mem_idx)
623 {
624 target_ulong base_reglist = reglist & 0xf;
625 target_ulong do_r31 = reglist & 0x10;
626
627 if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
628 target_ulong i;
629
630 for (i = 0; i < base_reglist; i++) {
631 do_sd(env, addr, env->active_tc.gpr[multiple_regs[i]], mem_idx,
632 GETPC());
633 addr += 8;
634 }
635 }
636
637 if (do_r31) {
638 do_sd(env, addr, env->active_tc.gpr[31], mem_idx, GETPC());
639 }
640 }
641 #endif
642
643 #ifndef CONFIG_USER_ONLY
644 /* SMP helpers. */
mips_vpe_is_wfi(MIPSCPU * c)645 static bool mips_vpe_is_wfi(MIPSCPU *c)
646 {
647 CPUState *cpu = CPU(c);
648 CPUMIPSState *env = &c->env;
649
650 /* If the VPE is halted but otherwise active, it means it's waiting for
651 an interrupt. */
652 return cpu->halted && mips_vpe_active(env);
653 }
654
mips_vp_is_wfi(MIPSCPU * c)655 static bool mips_vp_is_wfi(MIPSCPU *c)
656 {
657 CPUState *cpu = CPU(c);
658 CPUMIPSState *env = &c->env;
659
660 return cpu->halted && mips_vp_active(env);
661 }
662
mips_vpe_wake(MIPSCPU * c)663 static inline void mips_vpe_wake(MIPSCPU *c)
664 {
665 /* Don't set ->halted = 0 directly, let it be done via cpu_has_work
666 because there might be other conditions that state that c should
667 be sleeping. */
668 cpu_interrupt(CPU(c), CPU_INTERRUPT_WAKE);
669 }
670
mips_vpe_sleep(MIPSCPU * cpu)671 static inline void mips_vpe_sleep(MIPSCPU *cpu)
672 {
673 CPUState *cs = CPU(cpu);
674
675 /* The VPE was shut off, really go to bed.
676 Reset any old _WAKE requests. */
677 cs->halted = 1;
678 cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
679 }
680
mips_tc_wake(MIPSCPU * cpu,int tc)681 static inline void mips_tc_wake(MIPSCPU *cpu, int tc)
682 {
683 CPUMIPSState *c = &cpu->env;
684
685 /* FIXME: TC reschedule. */
686 if (mips_vpe_active(c) && !mips_vpe_is_wfi(cpu)) {
687 mips_vpe_wake(cpu);
688 }
689 }
690
mips_tc_sleep(MIPSCPU * cpu,int tc)691 static inline void mips_tc_sleep(MIPSCPU *cpu, int tc)
692 {
693 CPUMIPSState *c = &cpu->env;
694
695 /* FIXME: TC reschedule. */
696 if (!mips_vpe_active(c)) {
697 mips_vpe_sleep(cpu);
698 }
699 }
700
701 /**
702 * mips_cpu_map_tc:
703 * @env: CPU from which mapping is performed.
704 * @tc: Should point to an int with the value of the global TC index.
705 *
706 * This function will transform @tc into a local index within the
707 * returned #CPUMIPSState.
708 */
709 /* FIXME: This code assumes that all VPEs have the same number of TCs,
710 which depends on runtime setup. Can probably be fixed by
711 walking the list of CPUMIPSStates. */
mips_cpu_map_tc(CPUMIPSState * env,int * tc)712 static CPUMIPSState *mips_cpu_map_tc(CPUMIPSState *env, int *tc)
713 {
714 MIPSCPU *cpu;
715 CPUState *cs;
716 CPUState *other_cs;
717 int vpe_idx;
718 int tc_idx = *tc;
719
720 if (!(env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP))) {
721 /* Not allowed to address other CPUs. */
722 *tc = env->current_tc;
723 return env;
724 }
725
726 cs = CPU(mips_env_get_cpu(env));
727 vpe_idx = tc_idx / cs->nr_threads;
728 *tc = tc_idx % cs->nr_threads;
729 other_cs = qemu_get_cpu(vpe_idx);
730 if (other_cs == NULL) {
731 return env;
732 }
733 cpu = MIPS_CPU(other_cs);
734 return &cpu->env;
735 }
736
737 /* The per VPE CP0_Status register shares some fields with the per TC
738 CP0_TCStatus registers. These fields are wired to the same registers,
739 so changes to either of them should be reflected on both registers.
740
741 Also, EntryHi shares the bottom 8 bit ASID with TCStauts.
742
743 These helper call synchronizes the regs for a given cpu. */
744
745 /* Called for updates to CP0_Status. Defined in "cpu.h" for gdbstub.c. */
746 /* static inline void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu,
747 int tc); */
748
749 /* Called for updates to CP0_TCStatus. */
sync_c0_tcstatus(CPUMIPSState * cpu,int tc,target_ulong v)750 static void sync_c0_tcstatus(CPUMIPSState *cpu, int tc,
751 target_ulong v)
752 {
753 uint32_t status;
754 uint32_t tcu, tmx, tasid, tksu;
755 uint32_t mask = ((1U << CP0St_CU3)
756 | (1 << CP0St_CU2)
757 | (1 << CP0St_CU1)
758 | (1 << CP0St_CU0)
759 | (1 << CP0St_MX)
760 | (3 << CP0St_KSU));
761
762 tcu = (v >> CP0TCSt_TCU0) & 0xf;
763 tmx = (v >> CP0TCSt_TMX) & 0x1;
764 tasid = v & cpu->CP0_EntryHi_ASID_mask;
765 tksu = (v >> CP0TCSt_TKSU) & 0x3;
766
767 status = tcu << CP0St_CU0;
768 status |= tmx << CP0St_MX;
769 status |= tksu << CP0St_KSU;
770
771 cpu->CP0_Status &= ~mask;
772 cpu->CP0_Status |= status;
773
774 /* Sync the TASID with EntryHi. */
775 cpu->CP0_EntryHi &= ~cpu->CP0_EntryHi_ASID_mask;
776 cpu->CP0_EntryHi |= tasid;
777
778 compute_hflags(cpu);
779 }
780
781 /* Called for updates to CP0_EntryHi. */
sync_c0_entryhi(CPUMIPSState * cpu,int tc)782 static void sync_c0_entryhi(CPUMIPSState *cpu, int tc)
783 {
784 int32_t *tcst;
785 uint32_t asid, v = cpu->CP0_EntryHi;
786
787 asid = v & cpu->CP0_EntryHi_ASID_mask;
788
789 if (tc == cpu->current_tc) {
790 tcst = &cpu->active_tc.CP0_TCStatus;
791 } else {
792 tcst = &cpu->tcs[tc].CP0_TCStatus;
793 }
794
795 *tcst &= ~cpu->CP0_EntryHi_ASID_mask;
796 *tcst |= asid;
797 }
798
799 /* CP0 helpers */
helper_mfc0_mvpcontrol(CPUMIPSState * env)800 target_ulong helper_mfc0_mvpcontrol(CPUMIPSState *env)
801 {
802 return env->mvp->CP0_MVPControl;
803 }
804
helper_mfc0_mvpconf0(CPUMIPSState * env)805 target_ulong helper_mfc0_mvpconf0(CPUMIPSState *env)
806 {
807 return env->mvp->CP0_MVPConf0;
808 }
809
helper_mfc0_mvpconf1(CPUMIPSState * env)810 target_ulong helper_mfc0_mvpconf1(CPUMIPSState *env)
811 {
812 return env->mvp->CP0_MVPConf1;
813 }
814
helper_mfc0_random(CPUMIPSState * env)815 target_ulong helper_mfc0_random(CPUMIPSState *env)
816 {
817 return (int32_t)cpu_mips_get_random(env);
818 }
819
helper_mfc0_tcstatus(CPUMIPSState * env)820 target_ulong helper_mfc0_tcstatus(CPUMIPSState *env)
821 {
822 return env->active_tc.CP0_TCStatus;
823 }
824
helper_mftc0_tcstatus(CPUMIPSState * env)825 target_ulong helper_mftc0_tcstatus(CPUMIPSState *env)
826 {
827 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
828 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
829
830 if (other_tc == other->current_tc)
831 return other->active_tc.CP0_TCStatus;
832 else
833 return other->tcs[other_tc].CP0_TCStatus;
834 }
835
helper_mfc0_tcbind(CPUMIPSState * env)836 target_ulong helper_mfc0_tcbind(CPUMIPSState *env)
837 {
838 return env->active_tc.CP0_TCBind;
839 }
840
helper_mftc0_tcbind(CPUMIPSState * env)841 target_ulong helper_mftc0_tcbind(CPUMIPSState *env)
842 {
843 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
844 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
845
846 if (other_tc == other->current_tc)
847 return other->active_tc.CP0_TCBind;
848 else
849 return other->tcs[other_tc].CP0_TCBind;
850 }
851
helper_mfc0_tcrestart(CPUMIPSState * env)852 target_ulong helper_mfc0_tcrestart(CPUMIPSState *env)
853 {
854 return env->active_tc.PC;
855 }
856
helper_mftc0_tcrestart(CPUMIPSState * env)857 target_ulong helper_mftc0_tcrestart(CPUMIPSState *env)
858 {
859 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
860 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
861
862 if (other_tc == other->current_tc)
863 return other->active_tc.PC;
864 else
865 return other->tcs[other_tc].PC;
866 }
867
helper_mfc0_tchalt(CPUMIPSState * env)868 target_ulong helper_mfc0_tchalt(CPUMIPSState *env)
869 {
870 return env->active_tc.CP0_TCHalt;
871 }
872
helper_mftc0_tchalt(CPUMIPSState * env)873 target_ulong helper_mftc0_tchalt(CPUMIPSState *env)
874 {
875 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
876 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
877
878 if (other_tc == other->current_tc)
879 return other->active_tc.CP0_TCHalt;
880 else
881 return other->tcs[other_tc].CP0_TCHalt;
882 }
883
helper_mfc0_tccontext(CPUMIPSState * env)884 target_ulong helper_mfc0_tccontext(CPUMIPSState *env)
885 {
886 return env->active_tc.CP0_TCContext;
887 }
888
helper_mftc0_tccontext(CPUMIPSState * env)889 target_ulong helper_mftc0_tccontext(CPUMIPSState *env)
890 {
891 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
892 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
893
894 if (other_tc == other->current_tc)
895 return other->active_tc.CP0_TCContext;
896 else
897 return other->tcs[other_tc].CP0_TCContext;
898 }
899
helper_mfc0_tcschedule(CPUMIPSState * env)900 target_ulong helper_mfc0_tcschedule(CPUMIPSState *env)
901 {
902 return env->active_tc.CP0_TCSchedule;
903 }
904
helper_mftc0_tcschedule(CPUMIPSState * env)905 target_ulong helper_mftc0_tcschedule(CPUMIPSState *env)
906 {
907 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
908 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
909
910 if (other_tc == other->current_tc)
911 return other->active_tc.CP0_TCSchedule;
912 else
913 return other->tcs[other_tc].CP0_TCSchedule;
914 }
915
helper_mfc0_tcschefback(CPUMIPSState * env)916 target_ulong helper_mfc0_tcschefback(CPUMIPSState *env)
917 {
918 return env->active_tc.CP0_TCScheFBack;
919 }
920
helper_mftc0_tcschefback(CPUMIPSState * env)921 target_ulong helper_mftc0_tcschefback(CPUMIPSState *env)
922 {
923 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
924 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
925
926 if (other_tc == other->current_tc)
927 return other->active_tc.CP0_TCScheFBack;
928 else
929 return other->tcs[other_tc].CP0_TCScheFBack;
930 }
931
helper_mfc0_count(CPUMIPSState * env)932 target_ulong helper_mfc0_count(CPUMIPSState *env)
933 {
934 int32_t count;
935 qemu_mutex_lock_iothread();
936 count = (int32_t) cpu_mips_get_count(env);
937 qemu_mutex_unlock_iothread();
938 return count;
939 }
940
helper_mftc0_entryhi(CPUMIPSState * env)941 target_ulong helper_mftc0_entryhi(CPUMIPSState *env)
942 {
943 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
944 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
945
946 return other->CP0_EntryHi;
947 }
948
helper_mftc0_cause(CPUMIPSState * env)949 target_ulong helper_mftc0_cause(CPUMIPSState *env)
950 {
951 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
952 int32_t tccause;
953 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
954
955 if (other_tc == other->current_tc) {
956 tccause = other->CP0_Cause;
957 } else {
958 tccause = other->CP0_Cause;
959 }
960
961 return tccause;
962 }
963
helper_mftc0_status(CPUMIPSState * env)964 target_ulong helper_mftc0_status(CPUMIPSState *env)
965 {
966 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
967 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
968
969 return other->CP0_Status;
970 }
971
helper_mfc0_lladdr(CPUMIPSState * env)972 target_ulong helper_mfc0_lladdr(CPUMIPSState *env)
973 {
974 return (int32_t)(env->lladdr >> env->CP0_LLAddr_shift);
975 }
976
helper_mfc0_maar(CPUMIPSState * env)977 target_ulong helper_mfc0_maar(CPUMIPSState *env)
978 {
979 return (int32_t) env->CP0_MAAR[env->CP0_MAARI];
980 }
981
helper_mfhc0_maar(CPUMIPSState * env)982 target_ulong helper_mfhc0_maar(CPUMIPSState *env)
983 {
984 return env->CP0_MAAR[env->CP0_MAARI] >> 32;
985 }
986
helper_mfc0_watchlo(CPUMIPSState * env,uint32_t sel)987 target_ulong helper_mfc0_watchlo(CPUMIPSState *env, uint32_t sel)
988 {
989 return (int32_t)env->CP0_WatchLo[sel];
990 }
991
helper_mfc0_watchhi(CPUMIPSState * env,uint32_t sel)992 target_ulong helper_mfc0_watchhi(CPUMIPSState *env, uint32_t sel)
993 {
994 return env->CP0_WatchHi[sel];
995 }
996
helper_mfc0_debug(CPUMIPSState * env)997 target_ulong helper_mfc0_debug(CPUMIPSState *env)
998 {
999 target_ulong t0 = env->CP0_Debug;
1000 if (env->hflags & MIPS_HFLAG_DM)
1001 t0 |= 1 << CP0DB_DM;
1002
1003 return t0;
1004 }
1005
helper_mftc0_debug(CPUMIPSState * env)1006 target_ulong helper_mftc0_debug(CPUMIPSState *env)
1007 {
1008 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1009 int32_t tcstatus;
1010 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1011
1012 if (other_tc == other->current_tc)
1013 tcstatus = other->active_tc.CP0_Debug_tcstatus;
1014 else
1015 tcstatus = other->tcs[other_tc].CP0_Debug_tcstatus;
1016
1017 /* XXX: Might be wrong, check with EJTAG spec. */
1018 return (other->CP0_Debug & ~((1 << CP0DB_SSt) | (1 << CP0DB_Halt))) |
1019 (tcstatus & ((1 << CP0DB_SSt) | (1 << CP0DB_Halt)));
1020 }
1021
1022 #if defined(TARGET_MIPS64)
helper_dmfc0_tcrestart(CPUMIPSState * env)1023 target_ulong helper_dmfc0_tcrestart(CPUMIPSState *env)
1024 {
1025 return env->active_tc.PC;
1026 }
1027
helper_dmfc0_tchalt(CPUMIPSState * env)1028 target_ulong helper_dmfc0_tchalt(CPUMIPSState *env)
1029 {
1030 return env->active_tc.CP0_TCHalt;
1031 }
1032
helper_dmfc0_tccontext(CPUMIPSState * env)1033 target_ulong helper_dmfc0_tccontext(CPUMIPSState *env)
1034 {
1035 return env->active_tc.CP0_TCContext;
1036 }
1037
helper_dmfc0_tcschedule(CPUMIPSState * env)1038 target_ulong helper_dmfc0_tcschedule(CPUMIPSState *env)
1039 {
1040 return env->active_tc.CP0_TCSchedule;
1041 }
1042
helper_dmfc0_tcschefback(CPUMIPSState * env)1043 target_ulong helper_dmfc0_tcschefback(CPUMIPSState *env)
1044 {
1045 return env->active_tc.CP0_TCScheFBack;
1046 }
1047
helper_dmfc0_lladdr(CPUMIPSState * env)1048 target_ulong helper_dmfc0_lladdr(CPUMIPSState *env)
1049 {
1050 return env->lladdr >> env->CP0_LLAddr_shift;
1051 }
1052
helper_dmfc0_maar(CPUMIPSState * env)1053 target_ulong helper_dmfc0_maar(CPUMIPSState *env)
1054 {
1055 return env->CP0_MAAR[env->CP0_MAARI];
1056 }
1057
helper_dmfc0_watchlo(CPUMIPSState * env,uint32_t sel)1058 target_ulong helper_dmfc0_watchlo(CPUMIPSState *env, uint32_t sel)
1059 {
1060 return env->CP0_WatchLo[sel];
1061 }
1062 #endif /* TARGET_MIPS64 */
1063
helper_mtc0_index(CPUMIPSState * env,target_ulong arg1)1064 void helper_mtc0_index(CPUMIPSState *env, target_ulong arg1)
1065 {
1066 uint32_t index_p = env->CP0_Index & 0x80000000;
1067 uint32_t tlb_index = arg1 & 0x7fffffff;
1068 if (tlb_index < env->tlb->nb_tlb) {
1069 if (env->insn_flags & ISA_MIPS32R6) {
1070 index_p |= arg1 & 0x80000000;
1071 }
1072 env->CP0_Index = index_p | tlb_index;
1073 }
1074 }
1075
helper_mtc0_mvpcontrol(CPUMIPSState * env,target_ulong arg1)1076 void helper_mtc0_mvpcontrol(CPUMIPSState *env, target_ulong arg1)
1077 {
1078 uint32_t mask = 0;
1079 uint32_t newval;
1080
1081 if (env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP))
1082 mask |= (1 << CP0MVPCo_CPA) | (1 << CP0MVPCo_VPC) |
1083 (1 << CP0MVPCo_EVP);
1084 if (env->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1085 mask |= (1 << CP0MVPCo_STLB);
1086 newval = (env->mvp->CP0_MVPControl & ~mask) | (arg1 & mask);
1087
1088 // TODO: Enable/disable shared TLB, enable/disable VPEs.
1089
1090 env->mvp->CP0_MVPControl = newval;
1091 }
1092
helper_mtc0_vpecontrol(CPUMIPSState * env,target_ulong arg1)1093 void helper_mtc0_vpecontrol(CPUMIPSState *env, target_ulong arg1)
1094 {
1095 uint32_t mask;
1096 uint32_t newval;
1097
1098 mask = (1 << CP0VPECo_YSI) | (1 << CP0VPECo_GSI) |
1099 (1 << CP0VPECo_TE) | (0xff << CP0VPECo_TargTC);
1100 newval = (env->CP0_VPEControl & ~mask) | (arg1 & mask);
1101
1102 /* Yield scheduler intercept not implemented. */
1103 /* Gating storage scheduler intercept not implemented. */
1104
1105 // TODO: Enable/disable TCs.
1106
1107 env->CP0_VPEControl = newval;
1108 }
1109
helper_mttc0_vpecontrol(CPUMIPSState * env,target_ulong arg1)1110 void helper_mttc0_vpecontrol(CPUMIPSState *env, target_ulong arg1)
1111 {
1112 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1113 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1114 uint32_t mask;
1115 uint32_t newval;
1116
1117 mask = (1 << CP0VPECo_YSI) | (1 << CP0VPECo_GSI) |
1118 (1 << CP0VPECo_TE) | (0xff << CP0VPECo_TargTC);
1119 newval = (other->CP0_VPEControl & ~mask) | (arg1 & mask);
1120
1121 /* TODO: Enable/disable TCs. */
1122
1123 other->CP0_VPEControl = newval;
1124 }
1125
helper_mftc0_vpecontrol(CPUMIPSState * env)1126 target_ulong helper_mftc0_vpecontrol(CPUMIPSState *env)
1127 {
1128 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1129 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1130 /* FIXME: Mask away return zero on read bits. */
1131 return other->CP0_VPEControl;
1132 }
1133
helper_mftc0_vpeconf0(CPUMIPSState * env)1134 target_ulong helper_mftc0_vpeconf0(CPUMIPSState *env)
1135 {
1136 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1137 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1138
1139 return other->CP0_VPEConf0;
1140 }
1141
helper_mtc0_vpeconf0(CPUMIPSState * env,target_ulong arg1)1142 void helper_mtc0_vpeconf0(CPUMIPSState *env, target_ulong arg1)
1143 {
1144 uint32_t mask = 0;
1145 uint32_t newval;
1146
1147 if (env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) {
1148 if (env->CP0_VPEConf0 & (1 << CP0VPEC0_VPA))
1149 mask |= (0xff << CP0VPEC0_XTC);
1150 mask |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA);
1151 }
1152 newval = (env->CP0_VPEConf0 & ~mask) | (arg1 & mask);
1153
1154 // TODO: TC exclusive handling due to ERL/EXL.
1155
1156 env->CP0_VPEConf0 = newval;
1157 }
1158
helper_mttc0_vpeconf0(CPUMIPSState * env,target_ulong arg1)1159 void helper_mttc0_vpeconf0(CPUMIPSState *env, target_ulong arg1)
1160 {
1161 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1162 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1163 uint32_t mask = 0;
1164 uint32_t newval;
1165
1166 mask |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA);
1167 newval = (other->CP0_VPEConf0 & ~mask) | (arg1 & mask);
1168
1169 /* TODO: TC exclusive handling due to ERL/EXL. */
1170 other->CP0_VPEConf0 = newval;
1171 }
1172
helper_mtc0_vpeconf1(CPUMIPSState * env,target_ulong arg1)1173 void helper_mtc0_vpeconf1(CPUMIPSState *env, target_ulong arg1)
1174 {
1175 uint32_t mask = 0;
1176 uint32_t newval;
1177
1178 if (env->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1179 mask |= (0xff << CP0VPEC1_NCX) | (0xff << CP0VPEC1_NCP2) |
1180 (0xff << CP0VPEC1_NCP1);
1181 newval = (env->CP0_VPEConf1 & ~mask) | (arg1 & mask);
1182
1183 /* UDI not implemented. */
1184 /* CP2 not implemented. */
1185
1186 // TODO: Handle FPU (CP1) binding.
1187
1188 env->CP0_VPEConf1 = newval;
1189 }
1190
helper_mtc0_yqmask(CPUMIPSState * env,target_ulong arg1)1191 void helper_mtc0_yqmask(CPUMIPSState *env, target_ulong arg1)
1192 {
1193 /* Yield qualifier inputs not implemented. */
1194 env->CP0_YQMask = 0x00000000;
1195 }
1196
helper_mtc0_vpeopt(CPUMIPSState * env,target_ulong arg1)1197 void helper_mtc0_vpeopt(CPUMIPSState *env, target_ulong arg1)
1198 {
1199 env->CP0_VPEOpt = arg1 & 0x0000ffff;
1200 }
1201
1202 #define MTC0_ENTRYLO_MASK(env) ((env->PAMask >> 6) & 0x3FFFFFFF)
1203
helper_mtc0_entrylo0(CPUMIPSState * env,target_ulong arg1)1204 void helper_mtc0_entrylo0(CPUMIPSState *env, target_ulong arg1)
1205 {
1206 /* 1k pages not implemented */
1207 target_ulong rxi = arg1 & (env->CP0_PageGrain & (3u << CP0PG_XIE));
1208 env->CP0_EntryLo0 = (arg1 & MTC0_ENTRYLO_MASK(env))
1209 | (rxi << (CP0EnLo_XI - 30));
1210 }
1211
1212 #if defined(TARGET_MIPS64)
1213 #define DMTC0_ENTRYLO_MASK(env) (env->PAMask >> 6)
1214
helper_dmtc0_entrylo0(CPUMIPSState * env,uint64_t arg1)1215 void helper_dmtc0_entrylo0(CPUMIPSState *env, uint64_t arg1)
1216 {
1217 uint64_t rxi = arg1 & ((env->CP0_PageGrain & (3ull << CP0PG_XIE)) << 32);
1218 env->CP0_EntryLo0 = (arg1 & DMTC0_ENTRYLO_MASK(env)) | rxi;
1219 }
1220 #endif
1221
helper_mtc0_tcstatus(CPUMIPSState * env,target_ulong arg1)1222 void helper_mtc0_tcstatus(CPUMIPSState *env, target_ulong arg1)
1223 {
1224 uint32_t mask = env->CP0_TCStatus_rw_bitmask;
1225 uint32_t newval;
1226
1227 newval = (env->active_tc.CP0_TCStatus & ~mask) | (arg1 & mask);
1228
1229 env->active_tc.CP0_TCStatus = newval;
1230 sync_c0_tcstatus(env, env->current_tc, newval);
1231 }
1232
helper_mttc0_tcstatus(CPUMIPSState * env,target_ulong arg1)1233 void helper_mttc0_tcstatus(CPUMIPSState *env, target_ulong arg1)
1234 {
1235 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1236 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1237
1238 if (other_tc == other->current_tc)
1239 other->active_tc.CP0_TCStatus = arg1;
1240 else
1241 other->tcs[other_tc].CP0_TCStatus = arg1;
1242 sync_c0_tcstatus(other, other_tc, arg1);
1243 }
1244
helper_mtc0_tcbind(CPUMIPSState * env,target_ulong arg1)1245 void helper_mtc0_tcbind(CPUMIPSState *env, target_ulong arg1)
1246 {
1247 uint32_t mask = (1 << CP0TCBd_TBE);
1248 uint32_t newval;
1249
1250 if (env->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1251 mask |= (1 << CP0TCBd_CurVPE);
1252 newval = (env->active_tc.CP0_TCBind & ~mask) | (arg1 & mask);
1253 env->active_tc.CP0_TCBind = newval;
1254 }
1255
helper_mttc0_tcbind(CPUMIPSState * env,target_ulong arg1)1256 void helper_mttc0_tcbind(CPUMIPSState *env, target_ulong arg1)
1257 {
1258 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1259 uint32_t mask = (1 << CP0TCBd_TBE);
1260 uint32_t newval;
1261 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1262
1263 if (other->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1264 mask |= (1 << CP0TCBd_CurVPE);
1265 if (other_tc == other->current_tc) {
1266 newval = (other->active_tc.CP0_TCBind & ~mask) | (arg1 & mask);
1267 other->active_tc.CP0_TCBind = newval;
1268 } else {
1269 newval = (other->tcs[other_tc].CP0_TCBind & ~mask) | (arg1 & mask);
1270 other->tcs[other_tc].CP0_TCBind = newval;
1271 }
1272 }
1273
helper_mtc0_tcrestart(CPUMIPSState * env,target_ulong arg1)1274 void helper_mtc0_tcrestart(CPUMIPSState *env, target_ulong arg1)
1275 {
1276 env->active_tc.PC = arg1;
1277 env->active_tc.CP0_TCStatus &= ~(1 << CP0TCSt_TDS);
1278 env->lladdr = 0ULL;
1279 /* MIPS16 not implemented. */
1280 }
1281
helper_mttc0_tcrestart(CPUMIPSState * env,target_ulong arg1)1282 void helper_mttc0_tcrestart(CPUMIPSState *env, target_ulong arg1)
1283 {
1284 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1285 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1286
1287 if (other_tc == other->current_tc) {
1288 other->active_tc.PC = arg1;
1289 other->active_tc.CP0_TCStatus &= ~(1 << CP0TCSt_TDS);
1290 other->lladdr = 0ULL;
1291 /* MIPS16 not implemented. */
1292 } else {
1293 other->tcs[other_tc].PC = arg1;
1294 other->tcs[other_tc].CP0_TCStatus &= ~(1 << CP0TCSt_TDS);
1295 other->lladdr = 0ULL;
1296 /* MIPS16 not implemented. */
1297 }
1298 }
1299
helper_mtc0_tchalt(CPUMIPSState * env,target_ulong arg1)1300 void helper_mtc0_tchalt(CPUMIPSState *env, target_ulong arg1)
1301 {
1302 MIPSCPU *cpu = mips_env_get_cpu(env);
1303
1304 env->active_tc.CP0_TCHalt = arg1 & 0x1;
1305
1306 // TODO: Halt TC / Restart (if allocated+active) TC.
1307 if (env->active_tc.CP0_TCHalt & 1) {
1308 mips_tc_sleep(cpu, env->current_tc);
1309 } else {
1310 mips_tc_wake(cpu, env->current_tc);
1311 }
1312 }
1313
helper_mttc0_tchalt(CPUMIPSState * env,target_ulong arg1)1314 void helper_mttc0_tchalt(CPUMIPSState *env, target_ulong arg1)
1315 {
1316 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1317 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1318 MIPSCPU *other_cpu = mips_env_get_cpu(other);
1319
1320 // TODO: Halt TC / Restart (if allocated+active) TC.
1321
1322 if (other_tc == other->current_tc)
1323 other->active_tc.CP0_TCHalt = arg1;
1324 else
1325 other->tcs[other_tc].CP0_TCHalt = arg1;
1326
1327 if (arg1 & 1) {
1328 mips_tc_sleep(other_cpu, other_tc);
1329 } else {
1330 mips_tc_wake(other_cpu, other_tc);
1331 }
1332 }
1333
helper_mtc0_tccontext(CPUMIPSState * env,target_ulong arg1)1334 void helper_mtc0_tccontext(CPUMIPSState *env, target_ulong arg1)
1335 {
1336 env->active_tc.CP0_TCContext = arg1;
1337 }
1338
helper_mttc0_tccontext(CPUMIPSState * env,target_ulong arg1)1339 void helper_mttc0_tccontext(CPUMIPSState *env, target_ulong arg1)
1340 {
1341 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1342 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1343
1344 if (other_tc == other->current_tc)
1345 other->active_tc.CP0_TCContext = arg1;
1346 else
1347 other->tcs[other_tc].CP0_TCContext = arg1;
1348 }
1349
helper_mtc0_tcschedule(CPUMIPSState * env,target_ulong arg1)1350 void helper_mtc0_tcschedule(CPUMIPSState *env, target_ulong arg1)
1351 {
1352 env->active_tc.CP0_TCSchedule = arg1;
1353 }
1354
helper_mttc0_tcschedule(CPUMIPSState * env,target_ulong arg1)1355 void helper_mttc0_tcschedule(CPUMIPSState *env, target_ulong arg1)
1356 {
1357 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1358 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1359
1360 if (other_tc == other->current_tc)
1361 other->active_tc.CP0_TCSchedule = arg1;
1362 else
1363 other->tcs[other_tc].CP0_TCSchedule = arg1;
1364 }
1365
helper_mtc0_tcschefback(CPUMIPSState * env,target_ulong arg1)1366 void helper_mtc0_tcschefback(CPUMIPSState *env, target_ulong arg1)
1367 {
1368 env->active_tc.CP0_TCScheFBack = arg1;
1369 }
1370
helper_mttc0_tcschefback(CPUMIPSState * env,target_ulong arg1)1371 void helper_mttc0_tcschefback(CPUMIPSState *env, target_ulong arg1)
1372 {
1373 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1374 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1375
1376 if (other_tc == other->current_tc)
1377 other->active_tc.CP0_TCScheFBack = arg1;
1378 else
1379 other->tcs[other_tc].CP0_TCScheFBack = arg1;
1380 }
1381
helper_mtc0_entrylo1(CPUMIPSState * env,target_ulong arg1)1382 void helper_mtc0_entrylo1(CPUMIPSState *env, target_ulong arg1)
1383 {
1384 /* 1k pages not implemented */
1385 target_ulong rxi = arg1 & (env->CP0_PageGrain & (3u << CP0PG_XIE));
1386 env->CP0_EntryLo1 = (arg1 & MTC0_ENTRYLO_MASK(env))
1387 | (rxi << (CP0EnLo_XI - 30));
1388 }
1389
1390 #if defined(TARGET_MIPS64)
helper_dmtc0_entrylo1(CPUMIPSState * env,uint64_t arg1)1391 void helper_dmtc0_entrylo1(CPUMIPSState *env, uint64_t arg1)
1392 {
1393 uint64_t rxi = arg1 & ((env->CP0_PageGrain & (3ull << CP0PG_XIE)) << 32);
1394 env->CP0_EntryLo1 = (arg1 & DMTC0_ENTRYLO_MASK(env)) | rxi;
1395 }
1396 #endif
1397
helper_mtc0_context(CPUMIPSState * env,target_ulong arg1)1398 void helper_mtc0_context(CPUMIPSState *env, target_ulong arg1)
1399 {
1400 env->CP0_Context = (env->CP0_Context & 0x007FFFFF) | (arg1 & ~0x007FFFFF);
1401 }
1402
helper_mtc0_pagemask(CPUMIPSState * env,target_ulong arg1)1403 void helper_mtc0_pagemask(CPUMIPSState *env, target_ulong arg1)
1404 {
1405 uint64_t mask = arg1 >> (TARGET_PAGE_BITS + 1);
1406 if (!(env->insn_flags & ISA_MIPS32R6) || (arg1 == ~0) ||
1407 (mask == 0x0000 || mask == 0x0003 || mask == 0x000F ||
1408 mask == 0x003F || mask == 0x00FF || mask == 0x03FF ||
1409 mask == 0x0FFF || mask == 0x3FFF || mask == 0xFFFF)) {
1410 env->CP0_PageMask = arg1 & (0x1FFFFFFF & (TARGET_PAGE_MASK << 1));
1411 }
1412 }
1413
helper_mtc0_pagegrain(CPUMIPSState * env,target_ulong arg1)1414 void helper_mtc0_pagegrain(CPUMIPSState *env, target_ulong arg1)
1415 {
1416 /* SmartMIPS not implemented */
1417 /* 1k pages not implemented */
1418 env->CP0_PageGrain = (arg1 & env->CP0_PageGrain_rw_bitmask) |
1419 (env->CP0_PageGrain & ~env->CP0_PageGrain_rw_bitmask);
1420 compute_hflags(env);
1421 restore_pamask(env);
1422 }
1423
helper_mtc0_segctl0(CPUMIPSState * env,target_ulong arg1)1424 void helper_mtc0_segctl0(CPUMIPSState *env, target_ulong arg1)
1425 {
1426 CPUState *cs = CPU(mips_env_get_cpu(env));
1427
1428 env->CP0_SegCtl0 = arg1 & CP0SC0_MASK;
1429 tlb_flush(cs);
1430 }
1431
helper_mtc0_segctl1(CPUMIPSState * env,target_ulong arg1)1432 void helper_mtc0_segctl1(CPUMIPSState *env, target_ulong arg1)
1433 {
1434 CPUState *cs = CPU(mips_env_get_cpu(env));
1435
1436 env->CP0_SegCtl1 = arg1 & CP0SC1_MASK;
1437 tlb_flush(cs);
1438 }
1439
helper_mtc0_segctl2(CPUMIPSState * env,target_ulong arg1)1440 void helper_mtc0_segctl2(CPUMIPSState *env, target_ulong arg1)
1441 {
1442 CPUState *cs = CPU(mips_env_get_cpu(env));
1443
1444 env->CP0_SegCtl2 = arg1 & CP0SC2_MASK;
1445 tlb_flush(cs);
1446 }
1447
helper_mtc0_wired(CPUMIPSState * env,target_ulong arg1)1448 void helper_mtc0_wired(CPUMIPSState *env, target_ulong arg1)
1449 {
1450 if (env->insn_flags & ISA_MIPS32R6) {
1451 if (arg1 < env->tlb->nb_tlb) {
1452 env->CP0_Wired = arg1;
1453 }
1454 } else {
1455 env->CP0_Wired = arg1 % env->tlb->nb_tlb;
1456 }
1457 }
1458
helper_mtc0_srsconf0(CPUMIPSState * env,target_ulong arg1)1459 void helper_mtc0_srsconf0(CPUMIPSState *env, target_ulong arg1)
1460 {
1461 env->CP0_SRSConf0 |= arg1 & env->CP0_SRSConf0_rw_bitmask;
1462 }
1463
helper_mtc0_srsconf1(CPUMIPSState * env,target_ulong arg1)1464 void helper_mtc0_srsconf1(CPUMIPSState *env, target_ulong arg1)
1465 {
1466 env->CP0_SRSConf1 |= arg1 & env->CP0_SRSConf1_rw_bitmask;
1467 }
1468
helper_mtc0_srsconf2(CPUMIPSState * env,target_ulong arg1)1469 void helper_mtc0_srsconf2(CPUMIPSState *env, target_ulong arg1)
1470 {
1471 env->CP0_SRSConf2 |= arg1 & env->CP0_SRSConf2_rw_bitmask;
1472 }
1473
helper_mtc0_srsconf3(CPUMIPSState * env,target_ulong arg1)1474 void helper_mtc0_srsconf3(CPUMIPSState *env, target_ulong arg1)
1475 {
1476 env->CP0_SRSConf3 |= arg1 & env->CP0_SRSConf3_rw_bitmask;
1477 }
1478
helper_mtc0_srsconf4(CPUMIPSState * env,target_ulong arg1)1479 void helper_mtc0_srsconf4(CPUMIPSState *env, target_ulong arg1)
1480 {
1481 env->CP0_SRSConf4 |= arg1 & env->CP0_SRSConf4_rw_bitmask;
1482 }
1483
helper_mtc0_hwrena(CPUMIPSState * env,target_ulong arg1)1484 void helper_mtc0_hwrena(CPUMIPSState *env, target_ulong arg1)
1485 {
1486 uint32_t mask = 0x0000000F;
1487
1488 if ((env->CP0_Config1 & (1 << CP0C1_PC)) &&
1489 (env->insn_flags & ISA_MIPS32R6)) {
1490 mask |= (1 << 4);
1491 }
1492 if (env->insn_flags & ISA_MIPS32R6) {
1493 mask |= (1 << 5);
1494 }
1495 if (env->CP0_Config3 & (1 << CP0C3_ULRI)) {
1496 mask |= (1 << 29);
1497
1498 if (arg1 & (1 << 29)) {
1499 env->hflags |= MIPS_HFLAG_HWRENA_ULR;
1500 } else {
1501 env->hflags &= ~MIPS_HFLAG_HWRENA_ULR;
1502 }
1503 }
1504
1505 env->CP0_HWREna = arg1 & mask;
1506 }
1507
helper_mtc0_count(CPUMIPSState * env,target_ulong arg1)1508 void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1)
1509 {
1510 qemu_mutex_lock_iothread();
1511 cpu_mips_store_count(env, arg1);
1512 qemu_mutex_unlock_iothread();
1513 }
1514
helper_mtc0_entryhi(CPUMIPSState * env,target_ulong arg1)1515 void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1)
1516 {
1517 target_ulong old, val, mask;
1518 mask = (TARGET_PAGE_MASK << 1) | env->CP0_EntryHi_ASID_mask;
1519 if (((env->CP0_Config4 >> CP0C4_IE) & 0x3) >= 2) {
1520 mask |= 1 << CP0EnHi_EHINV;
1521 }
1522
1523 /* 1k pages not implemented */
1524 #if defined(TARGET_MIPS64)
1525 if (env->insn_flags & ISA_MIPS32R6) {
1526 int entryhi_r = extract64(arg1, 62, 2);
1527 int config0_at = extract32(env->CP0_Config0, 13, 2);
1528 bool no_supervisor = (env->CP0_Status_rw_bitmask & 0x8) == 0;
1529 if ((entryhi_r == 2) ||
1530 (entryhi_r == 1 && (no_supervisor || config0_at == 1))) {
1531 /* skip EntryHi.R field if new value is reserved */
1532 mask &= ~(0x3ull << 62);
1533 }
1534 }
1535 mask &= env->SEGMask;
1536 #endif
1537 old = env->CP0_EntryHi;
1538 val = (arg1 & mask) | (old & ~mask);
1539 env->CP0_EntryHi = val;
1540 if (env->CP0_Config3 & (1 << CP0C3_MT)) {
1541 sync_c0_entryhi(env, env->current_tc);
1542 }
1543 /* If the ASID changes, flush qemu's TLB. */
1544 if ((old & env->CP0_EntryHi_ASID_mask) !=
1545 (val & env->CP0_EntryHi_ASID_mask)) {
1546 tlb_flush(CPU(mips_env_get_cpu(env)));
1547 }
1548 }
1549
helper_mttc0_entryhi(CPUMIPSState * env,target_ulong arg1)1550 void helper_mttc0_entryhi(CPUMIPSState *env, target_ulong arg1)
1551 {
1552 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1553 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1554
1555 other->CP0_EntryHi = arg1;
1556 sync_c0_entryhi(other, other_tc);
1557 }
1558
helper_mtc0_compare(CPUMIPSState * env,target_ulong arg1)1559 void helper_mtc0_compare(CPUMIPSState *env, target_ulong arg1)
1560 {
1561 qemu_mutex_lock_iothread();
1562 cpu_mips_store_compare(env, arg1);
1563 qemu_mutex_unlock_iothread();
1564 }
1565
helper_mtc0_status(CPUMIPSState * env,target_ulong arg1)1566 void helper_mtc0_status(CPUMIPSState *env, target_ulong arg1)
1567 {
1568 MIPSCPU *cpu = mips_env_get_cpu(env);
1569 uint32_t val, old;
1570
1571 old = env->CP0_Status;
1572 cpu_mips_store_status(env, arg1);
1573 val = env->CP0_Status;
1574
1575 if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
1576 qemu_log("Status %08x (%08x) => %08x (%08x) Cause %08x",
1577 old, old & env->CP0_Cause & CP0Ca_IP_mask,
1578 val, val & env->CP0_Cause & CP0Ca_IP_mask,
1579 env->CP0_Cause);
1580 switch (cpu_mmu_index(env, false)) {
1581 case 3:
1582 qemu_log(", ERL\n");
1583 break;
1584 case MIPS_HFLAG_UM: qemu_log(", UM\n"); break;
1585 case MIPS_HFLAG_SM: qemu_log(", SM\n"); break;
1586 case MIPS_HFLAG_KM: qemu_log("\n"); break;
1587 default:
1588 cpu_abort(CPU(cpu), "Invalid MMU mode!\n");
1589 break;
1590 }
1591 }
1592 }
1593
helper_mttc0_status(CPUMIPSState * env,target_ulong arg1)1594 void helper_mttc0_status(CPUMIPSState *env, target_ulong arg1)
1595 {
1596 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1597 uint32_t mask = env->CP0_Status_rw_bitmask & ~0xf1000018;
1598 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1599
1600 other->CP0_Status = (other->CP0_Status & ~mask) | (arg1 & mask);
1601 sync_c0_status(env, other, other_tc);
1602 }
1603
helper_mtc0_intctl(CPUMIPSState * env,target_ulong arg1)1604 void helper_mtc0_intctl(CPUMIPSState *env, target_ulong arg1)
1605 {
1606 env->CP0_IntCtl = (env->CP0_IntCtl & ~0x000003e0) | (arg1 & 0x000003e0);
1607 }
1608
helper_mtc0_srsctl(CPUMIPSState * env,target_ulong arg1)1609 void helper_mtc0_srsctl(CPUMIPSState *env, target_ulong arg1)
1610 {
1611 uint32_t mask = (0xf << CP0SRSCtl_ESS) | (0xf << CP0SRSCtl_PSS);
1612 env->CP0_SRSCtl = (env->CP0_SRSCtl & ~mask) | (arg1 & mask);
1613 }
1614
helper_mtc0_cause(CPUMIPSState * env,target_ulong arg1)1615 void helper_mtc0_cause(CPUMIPSState *env, target_ulong arg1)
1616 {
1617 qemu_mutex_lock_iothread();
1618 cpu_mips_store_cause(env, arg1);
1619 qemu_mutex_unlock_iothread();
1620 }
1621
helper_mttc0_cause(CPUMIPSState * env,target_ulong arg1)1622 void helper_mttc0_cause(CPUMIPSState *env, target_ulong arg1)
1623 {
1624 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1625 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1626
1627 cpu_mips_store_cause(other, arg1);
1628 }
1629
helper_mftc0_epc(CPUMIPSState * env)1630 target_ulong helper_mftc0_epc(CPUMIPSState *env)
1631 {
1632 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1633 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1634
1635 return other->CP0_EPC;
1636 }
1637
helper_mftc0_ebase(CPUMIPSState * env)1638 target_ulong helper_mftc0_ebase(CPUMIPSState *env)
1639 {
1640 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1641 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1642
1643 return other->CP0_EBase;
1644 }
1645
helper_mtc0_ebase(CPUMIPSState * env,target_ulong arg1)1646 void helper_mtc0_ebase(CPUMIPSState *env, target_ulong arg1)
1647 {
1648 target_ulong mask = 0x3FFFF000 | env->CP0_EBaseWG_rw_bitmask;
1649 if (arg1 & env->CP0_EBaseWG_rw_bitmask) {
1650 mask |= ~0x3FFFFFFF;
1651 }
1652 env->CP0_EBase = (env->CP0_EBase & ~mask) | (arg1 & mask);
1653 }
1654
helper_mttc0_ebase(CPUMIPSState * env,target_ulong arg1)1655 void helper_mttc0_ebase(CPUMIPSState *env, target_ulong arg1)
1656 {
1657 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1658 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1659 target_ulong mask = 0x3FFFF000 | env->CP0_EBaseWG_rw_bitmask;
1660 if (arg1 & env->CP0_EBaseWG_rw_bitmask) {
1661 mask |= ~0x3FFFFFFF;
1662 }
1663 other->CP0_EBase = (other->CP0_EBase & ~mask) | (arg1 & mask);
1664 }
1665
helper_mftc0_configx(CPUMIPSState * env,target_ulong idx)1666 target_ulong helper_mftc0_configx(CPUMIPSState *env, target_ulong idx)
1667 {
1668 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1669 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1670
1671 switch (idx) {
1672 case 0: return other->CP0_Config0;
1673 case 1: return other->CP0_Config1;
1674 case 2: return other->CP0_Config2;
1675 case 3: return other->CP0_Config3;
1676 /* 4 and 5 are reserved. */
1677 case 6: return other->CP0_Config6;
1678 case 7: return other->CP0_Config7;
1679 default:
1680 break;
1681 }
1682 return 0;
1683 }
1684
helper_mtc0_config0(CPUMIPSState * env,target_ulong arg1)1685 void helper_mtc0_config0(CPUMIPSState *env, target_ulong arg1)
1686 {
1687 env->CP0_Config0 = (env->CP0_Config0 & 0x81FFFFF8) | (arg1 & 0x00000007);
1688 }
1689
helper_mtc0_config2(CPUMIPSState * env,target_ulong arg1)1690 void helper_mtc0_config2(CPUMIPSState *env, target_ulong arg1)
1691 {
1692 /* tertiary/secondary caches not implemented */
1693 env->CP0_Config2 = (env->CP0_Config2 & 0x8FFF0FFF);
1694 }
1695
helper_mtc0_config3(CPUMIPSState * env,target_ulong arg1)1696 void helper_mtc0_config3(CPUMIPSState *env, target_ulong arg1)
1697 {
1698 if (env->insn_flags & ASE_MICROMIPS) {
1699 env->CP0_Config3 = (env->CP0_Config3 & ~(1 << CP0C3_ISA_ON_EXC)) |
1700 (arg1 & (1 << CP0C3_ISA_ON_EXC));
1701 }
1702 }
1703
helper_mtc0_config4(CPUMIPSState * env,target_ulong arg1)1704 void helper_mtc0_config4(CPUMIPSState *env, target_ulong arg1)
1705 {
1706 env->CP0_Config4 = (env->CP0_Config4 & (~env->CP0_Config4_rw_bitmask)) |
1707 (arg1 & env->CP0_Config4_rw_bitmask);
1708 }
1709
helper_mtc0_config5(CPUMIPSState * env,target_ulong arg1)1710 void helper_mtc0_config5(CPUMIPSState *env, target_ulong arg1)
1711 {
1712 env->CP0_Config5 = (env->CP0_Config5 & (~env->CP0_Config5_rw_bitmask)) |
1713 (arg1 & env->CP0_Config5_rw_bitmask);
1714 compute_hflags(env);
1715 }
1716
helper_mtc0_lladdr(CPUMIPSState * env,target_ulong arg1)1717 void helper_mtc0_lladdr(CPUMIPSState *env, target_ulong arg1)
1718 {
1719 target_long mask = env->CP0_LLAddr_rw_bitmask;
1720 arg1 = arg1 << env->CP0_LLAddr_shift;
1721 env->lladdr = (env->lladdr & ~mask) | (arg1 & mask);
1722 }
1723
1724 #define MTC0_MAAR_MASK(env) \
1725 ((0x1ULL << 63) | ((env->PAMask >> 4) & ~0xFFFull) | 0x3)
1726
helper_mtc0_maar(CPUMIPSState * env,target_ulong arg1)1727 void helper_mtc0_maar(CPUMIPSState *env, target_ulong arg1)
1728 {
1729 env->CP0_MAAR[env->CP0_MAARI] = arg1 & MTC0_MAAR_MASK(env);
1730 }
1731
helper_mthc0_maar(CPUMIPSState * env,target_ulong arg1)1732 void helper_mthc0_maar(CPUMIPSState *env, target_ulong arg1)
1733 {
1734 env->CP0_MAAR[env->CP0_MAARI] =
1735 (((uint64_t) arg1 << 32) & MTC0_MAAR_MASK(env)) |
1736 (env->CP0_MAAR[env->CP0_MAARI] & 0x00000000ffffffffULL);
1737 }
1738
helper_mtc0_maari(CPUMIPSState * env,target_ulong arg1)1739 void helper_mtc0_maari(CPUMIPSState *env, target_ulong arg1)
1740 {
1741 int index = arg1 & 0x3f;
1742 if (index == 0x3f) {
1743 /* Software may write all ones to INDEX to determine the
1744 maximum value supported. */
1745 env->CP0_MAARI = MIPS_MAAR_MAX - 1;
1746 } else if (index < MIPS_MAAR_MAX) {
1747 env->CP0_MAARI = index;
1748 }
1749 /* Other than the all ones, if the
1750 value written is not supported, then INDEX is unchanged
1751 from its previous value. */
1752 }
1753
helper_mtc0_watchlo(CPUMIPSState * env,target_ulong arg1,uint32_t sel)1754 void helper_mtc0_watchlo(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1755 {
1756 /* Watch exceptions for instructions, data loads, data stores
1757 not implemented. */
1758 env->CP0_WatchLo[sel] = (arg1 & ~0x7);
1759 }
1760
helper_mtc0_watchhi(CPUMIPSState * env,target_ulong arg1,uint32_t sel)1761 void helper_mtc0_watchhi(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1762 {
1763 int mask = 0x40000FF8 | (env->CP0_EntryHi_ASID_mask << CP0WH_ASID);
1764 env->CP0_WatchHi[sel] = arg1 & mask;
1765 env->CP0_WatchHi[sel] &= ~(env->CP0_WatchHi[sel] & arg1 & 0x7);
1766 }
1767
helper_mtc0_xcontext(CPUMIPSState * env,target_ulong arg1)1768 void helper_mtc0_xcontext(CPUMIPSState *env, target_ulong arg1)
1769 {
1770 target_ulong mask = (1ULL << (env->SEGBITS - 7)) - 1;
1771 env->CP0_XContext = (env->CP0_XContext & mask) | (arg1 & ~mask);
1772 }
1773
helper_mtc0_framemask(CPUMIPSState * env,target_ulong arg1)1774 void helper_mtc0_framemask(CPUMIPSState *env, target_ulong arg1)
1775 {
1776 env->CP0_Framemask = arg1; /* XXX */
1777 }
1778
helper_mtc0_debug(CPUMIPSState * env,target_ulong arg1)1779 void helper_mtc0_debug(CPUMIPSState *env, target_ulong arg1)
1780 {
1781 env->CP0_Debug = (env->CP0_Debug & 0x8C03FC1F) | (arg1 & 0x13300120);
1782 if (arg1 & (1 << CP0DB_DM))
1783 env->hflags |= MIPS_HFLAG_DM;
1784 else
1785 env->hflags &= ~MIPS_HFLAG_DM;
1786 }
1787
helper_mttc0_debug(CPUMIPSState * env,target_ulong arg1)1788 void helper_mttc0_debug(CPUMIPSState *env, target_ulong arg1)
1789 {
1790 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1791 uint32_t val = arg1 & ((1 << CP0DB_SSt) | (1 << CP0DB_Halt));
1792 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1793
1794 /* XXX: Might be wrong, check with EJTAG spec. */
1795 if (other_tc == other->current_tc)
1796 other->active_tc.CP0_Debug_tcstatus = val;
1797 else
1798 other->tcs[other_tc].CP0_Debug_tcstatus = val;
1799 other->CP0_Debug = (other->CP0_Debug &
1800 ((1 << CP0DB_SSt) | (1 << CP0DB_Halt))) |
1801 (arg1 & ~((1 << CP0DB_SSt) | (1 << CP0DB_Halt)));
1802 }
1803
helper_mtc0_performance0(CPUMIPSState * env,target_ulong arg1)1804 void helper_mtc0_performance0(CPUMIPSState *env, target_ulong arg1)
1805 {
1806 env->CP0_Performance0 = arg1 & 0x000007ff;
1807 }
1808
helper_mtc0_errctl(CPUMIPSState * env,target_ulong arg1)1809 void helper_mtc0_errctl(CPUMIPSState *env, target_ulong arg1)
1810 {
1811 int32_t wst = arg1 & (1 << CP0EC_WST);
1812 int32_t spr = arg1 & (1 << CP0EC_SPR);
1813 int32_t itc = env->itc_tag ? (arg1 & (1 << CP0EC_ITC)) : 0;
1814
1815 env->CP0_ErrCtl = wst | spr | itc;
1816
1817 if (itc && !wst && !spr) {
1818 env->hflags |= MIPS_HFLAG_ITC_CACHE;
1819 } else {
1820 env->hflags &= ~MIPS_HFLAG_ITC_CACHE;
1821 }
1822 }
1823
helper_mtc0_taglo(CPUMIPSState * env,target_ulong arg1)1824 void helper_mtc0_taglo(CPUMIPSState *env, target_ulong arg1)
1825 {
1826 if (env->hflags & MIPS_HFLAG_ITC_CACHE) {
1827 /* If CACHE instruction is configured for ITC tags then make all
1828 CP0.TagLo bits writable. The actual write to ITC Configuration
1829 Tag will take care of the read-only bits. */
1830 env->CP0_TagLo = arg1;
1831 } else {
1832 env->CP0_TagLo = arg1 & 0xFFFFFCF6;
1833 }
1834 }
1835
helper_mtc0_datalo(CPUMIPSState * env,target_ulong arg1)1836 void helper_mtc0_datalo(CPUMIPSState *env, target_ulong arg1)
1837 {
1838 env->CP0_DataLo = arg1; /* XXX */
1839 }
1840
helper_mtc0_taghi(CPUMIPSState * env,target_ulong arg1)1841 void helper_mtc0_taghi(CPUMIPSState *env, target_ulong arg1)
1842 {
1843 env->CP0_TagHi = arg1; /* XXX */
1844 }
1845
helper_mtc0_datahi(CPUMIPSState * env,target_ulong arg1)1846 void helper_mtc0_datahi(CPUMIPSState *env, target_ulong arg1)
1847 {
1848 env->CP0_DataHi = arg1; /* XXX */
1849 }
1850
1851 /* MIPS MT functions */
helper_mftgpr(CPUMIPSState * env,uint32_t sel)1852 target_ulong helper_mftgpr(CPUMIPSState *env, uint32_t sel)
1853 {
1854 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1855 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1856
1857 if (other_tc == other->current_tc)
1858 return other->active_tc.gpr[sel];
1859 else
1860 return other->tcs[other_tc].gpr[sel];
1861 }
1862
helper_mftlo(CPUMIPSState * env,uint32_t sel)1863 target_ulong helper_mftlo(CPUMIPSState *env, uint32_t sel)
1864 {
1865 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1866 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1867
1868 if (other_tc == other->current_tc)
1869 return other->active_tc.LO[sel];
1870 else
1871 return other->tcs[other_tc].LO[sel];
1872 }
1873
helper_mfthi(CPUMIPSState * env,uint32_t sel)1874 target_ulong helper_mfthi(CPUMIPSState *env, uint32_t sel)
1875 {
1876 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1877 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1878
1879 if (other_tc == other->current_tc)
1880 return other->active_tc.HI[sel];
1881 else
1882 return other->tcs[other_tc].HI[sel];
1883 }
1884
helper_mftacx(CPUMIPSState * env,uint32_t sel)1885 target_ulong helper_mftacx(CPUMIPSState *env, uint32_t sel)
1886 {
1887 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1888 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1889
1890 if (other_tc == other->current_tc)
1891 return other->active_tc.ACX[sel];
1892 else
1893 return other->tcs[other_tc].ACX[sel];
1894 }
1895
helper_mftdsp(CPUMIPSState * env)1896 target_ulong helper_mftdsp(CPUMIPSState *env)
1897 {
1898 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1899 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1900
1901 if (other_tc == other->current_tc)
1902 return other->active_tc.DSPControl;
1903 else
1904 return other->tcs[other_tc].DSPControl;
1905 }
1906
helper_mttgpr(CPUMIPSState * env,target_ulong arg1,uint32_t sel)1907 void helper_mttgpr(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1908 {
1909 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1910 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1911
1912 if (other_tc == other->current_tc)
1913 other->active_tc.gpr[sel] = arg1;
1914 else
1915 other->tcs[other_tc].gpr[sel] = arg1;
1916 }
1917
helper_mttlo(CPUMIPSState * env,target_ulong arg1,uint32_t sel)1918 void helper_mttlo(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1919 {
1920 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1921 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1922
1923 if (other_tc == other->current_tc)
1924 other->active_tc.LO[sel] = arg1;
1925 else
1926 other->tcs[other_tc].LO[sel] = arg1;
1927 }
1928
helper_mtthi(CPUMIPSState * env,target_ulong arg1,uint32_t sel)1929 void helper_mtthi(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1930 {
1931 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1932 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1933
1934 if (other_tc == other->current_tc)
1935 other->active_tc.HI[sel] = arg1;
1936 else
1937 other->tcs[other_tc].HI[sel] = arg1;
1938 }
1939
helper_mttacx(CPUMIPSState * env,target_ulong arg1,uint32_t sel)1940 void helper_mttacx(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1941 {
1942 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1943 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1944
1945 if (other_tc == other->current_tc)
1946 other->active_tc.ACX[sel] = arg1;
1947 else
1948 other->tcs[other_tc].ACX[sel] = arg1;
1949 }
1950
helper_mttdsp(CPUMIPSState * env,target_ulong arg1)1951 void helper_mttdsp(CPUMIPSState *env, target_ulong arg1)
1952 {
1953 int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1954 CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1955
1956 if (other_tc == other->current_tc)
1957 other->active_tc.DSPControl = arg1;
1958 else
1959 other->tcs[other_tc].DSPControl = arg1;
1960 }
1961
1962 /* MIPS MT functions */
helper_dmt(void)1963 target_ulong helper_dmt(void)
1964 {
1965 // TODO
1966 return 0;
1967 }
1968
helper_emt(void)1969 target_ulong helper_emt(void)
1970 {
1971 // TODO
1972 return 0;
1973 }
1974
helper_dvpe(CPUMIPSState * env)1975 target_ulong helper_dvpe(CPUMIPSState *env)
1976 {
1977 CPUState *other_cs = first_cpu;
1978 target_ulong prev = env->mvp->CP0_MVPControl;
1979
1980 CPU_FOREACH(other_cs) {
1981 MIPSCPU *other_cpu = MIPS_CPU(other_cs);
1982 /* Turn off all VPEs except the one executing the dvpe. */
1983 if (&other_cpu->env != env) {
1984 other_cpu->env.mvp->CP0_MVPControl &= ~(1 << CP0MVPCo_EVP);
1985 mips_vpe_sleep(other_cpu);
1986 }
1987 }
1988 return prev;
1989 }
1990
helper_evpe(CPUMIPSState * env)1991 target_ulong helper_evpe(CPUMIPSState *env)
1992 {
1993 CPUState *other_cs = first_cpu;
1994 target_ulong prev = env->mvp->CP0_MVPControl;
1995
1996 CPU_FOREACH(other_cs) {
1997 MIPSCPU *other_cpu = MIPS_CPU(other_cs);
1998
1999 if (&other_cpu->env != env
2000 /* If the VPE is WFI, don't disturb its sleep. */
2001 && !mips_vpe_is_wfi(other_cpu)) {
2002 /* Enable the VPE. */
2003 other_cpu->env.mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP);
2004 mips_vpe_wake(other_cpu); /* And wake it up. */
2005 }
2006 }
2007 return prev;
2008 }
2009 #endif /* !CONFIG_USER_ONLY */
2010
helper_fork(target_ulong arg1,target_ulong arg2)2011 void helper_fork(target_ulong arg1, target_ulong arg2)
2012 {
2013 // arg1 = rt, arg2 = rs
2014 // TODO: store to TC register
2015 }
2016
helper_yield(CPUMIPSState * env,target_ulong arg)2017 target_ulong helper_yield(CPUMIPSState *env, target_ulong arg)
2018 {
2019 target_long arg1 = arg;
2020
2021 if (arg1 < 0) {
2022 /* No scheduling policy implemented. */
2023 if (arg1 != -2) {
2024 if (env->CP0_VPEControl & (1 << CP0VPECo_YSI) &&
2025 env->active_tc.CP0_TCStatus & (1 << CP0TCSt_DT)) {
2026 env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
2027 env->CP0_VPEControl |= 4 << CP0VPECo_EXCPT;
2028 do_raise_exception(env, EXCP_THREAD, GETPC());
2029 }
2030 }
2031 } else if (arg1 == 0) {
2032 if (0 /* TODO: TC underflow */) {
2033 env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
2034 do_raise_exception(env, EXCP_THREAD, GETPC());
2035 } else {
2036 // TODO: Deallocate TC
2037 }
2038 } else if (arg1 > 0) {
2039 /* Yield qualifier inputs not implemented. */
2040 env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
2041 env->CP0_VPEControl |= 2 << CP0VPECo_EXCPT;
2042 do_raise_exception(env, EXCP_THREAD, GETPC());
2043 }
2044 return env->CP0_YQMask;
2045 }
2046
2047 /* R6 Multi-threading */
2048 #ifndef CONFIG_USER_ONLY
helper_dvp(CPUMIPSState * env)2049 target_ulong helper_dvp(CPUMIPSState *env)
2050 {
2051 CPUState *other_cs = first_cpu;
2052 target_ulong prev = env->CP0_VPControl;
2053
2054 if (!((env->CP0_VPControl >> CP0VPCtl_DIS) & 1)) {
2055 CPU_FOREACH(other_cs) {
2056 MIPSCPU *other_cpu = MIPS_CPU(other_cs);
2057 /* Turn off all VPs except the one executing the dvp. */
2058 if (&other_cpu->env != env) {
2059 mips_vpe_sleep(other_cpu);
2060 }
2061 }
2062 env->CP0_VPControl |= (1 << CP0VPCtl_DIS);
2063 }
2064 return prev;
2065 }
2066
helper_evp(CPUMIPSState * env)2067 target_ulong helper_evp(CPUMIPSState *env)
2068 {
2069 CPUState *other_cs = first_cpu;
2070 target_ulong prev = env->CP0_VPControl;
2071
2072 if ((env->CP0_VPControl >> CP0VPCtl_DIS) & 1) {
2073 CPU_FOREACH(other_cs) {
2074 MIPSCPU *other_cpu = MIPS_CPU(other_cs);
2075 if ((&other_cpu->env != env) && !mips_vp_is_wfi(other_cpu)) {
2076 /* If the VP is WFI, don't disturb its sleep.
2077 * Otherwise, wake it up. */
2078 mips_vpe_wake(other_cpu);
2079 }
2080 }
2081 env->CP0_VPControl &= ~(1 << CP0VPCtl_DIS);
2082 }
2083 return prev;
2084 }
2085 #endif /* !CONFIG_USER_ONLY */
2086
2087 #ifndef CONFIG_USER_ONLY
2088 /* TLB management */
r4k_mips_tlb_flush_extra(CPUMIPSState * env,int first)2089 static void r4k_mips_tlb_flush_extra (CPUMIPSState *env, int first)
2090 {
2091 /* Discard entries from env->tlb[first] onwards. */
2092 while (env->tlb->tlb_in_use > first) {
2093 r4k_invalidate_tlb(env, --env->tlb->tlb_in_use, 0);
2094 }
2095 }
2096
get_tlb_pfn_from_entrylo(uint64_t entrylo)2097 static inline uint64_t get_tlb_pfn_from_entrylo(uint64_t entrylo)
2098 {
2099 #if defined(TARGET_MIPS64)
2100 return extract64(entrylo, 6, 54);
2101 #else
2102 return extract64(entrylo, 6, 24) | /* PFN */
2103 (extract64(entrylo, 32, 32) << 24); /* PFNX */
2104 #endif
2105 }
2106
r4k_fill_tlb(CPUMIPSState * env,int idx)2107 static void r4k_fill_tlb(CPUMIPSState *env, int idx)
2108 {
2109 r4k_tlb_t *tlb;
2110 uint64_t mask = env->CP0_PageMask >> (TARGET_PAGE_BITS + 1);
2111
2112 /* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
2113 tlb = &env->tlb->mmu.r4k.tlb[idx];
2114 if (env->CP0_EntryHi & (1 << CP0EnHi_EHINV)) {
2115 tlb->EHINV = 1;
2116 return;
2117 }
2118 tlb->EHINV = 0;
2119 tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
2120 #if defined(TARGET_MIPS64)
2121 tlb->VPN &= env->SEGMask;
2122 #endif
2123 tlb->ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
2124 tlb->PageMask = env->CP0_PageMask;
2125 tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
2126 tlb->V0 = (env->CP0_EntryLo0 & 2) != 0;
2127 tlb->D0 = (env->CP0_EntryLo0 & 4) != 0;
2128 tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7;
2129 tlb->XI0 = (env->CP0_EntryLo0 >> CP0EnLo_XI) & 1;
2130 tlb->RI0 = (env->CP0_EntryLo0 >> CP0EnLo_RI) & 1;
2131 tlb->PFN[0] = (get_tlb_pfn_from_entrylo(env->CP0_EntryLo0) & ~mask) << 12;
2132 tlb->V1 = (env->CP0_EntryLo1 & 2) != 0;
2133 tlb->D1 = (env->CP0_EntryLo1 & 4) != 0;
2134 tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7;
2135 tlb->XI1 = (env->CP0_EntryLo1 >> CP0EnLo_XI) & 1;
2136 tlb->RI1 = (env->CP0_EntryLo1 >> CP0EnLo_RI) & 1;
2137 tlb->PFN[1] = (get_tlb_pfn_from_entrylo(env->CP0_EntryLo1) & ~mask) << 12;
2138 }
2139
r4k_helper_tlbinv(CPUMIPSState * env)2140 void r4k_helper_tlbinv(CPUMIPSState *env)
2141 {
2142 int idx;
2143 r4k_tlb_t *tlb;
2144 uint16_t ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
2145
2146 for (idx = 0; idx < env->tlb->nb_tlb; idx++) {
2147 tlb = &env->tlb->mmu.r4k.tlb[idx];
2148 if (!tlb->G && tlb->ASID == ASID) {
2149 tlb->EHINV = 1;
2150 }
2151 }
2152 cpu_mips_tlb_flush(env);
2153 }
2154
r4k_helper_tlbinvf(CPUMIPSState * env)2155 void r4k_helper_tlbinvf(CPUMIPSState *env)
2156 {
2157 int idx;
2158
2159 for (idx = 0; idx < env->tlb->nb_tlb; idx++) {
2160 env->tlb->mmu.r4k.tlb[idx].EHINV = 1;
2161 }
2162 cpu_mips_tlb_flush(env);
2163 }
2164
r4k_helper_tlbwi(CPUMIPSState * env)2165 void r4k_helper_tlbwi(CPUMIPSState *env)
2166 {
2167 r4k_tlb_t *tlb;
2168 int idx;
2169 target_ulong VPN;
2170 uint16_t ASID;
2171 bool EHINV, G, V0, D0, V1, D1, XI0, XI1, RI0, RI1;
2172
2173 idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
2174 tlb = &env->tlb->mmu.r4k.tlb[idx];
2175 VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
2176 #if defined(TARGET_MIPS64)
2177 VPN &= env->SEGMask;
2178 #endif
2179 ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
2180 EHINV = (env->CP0_EntryHi & (1 << CP0EnHi_EHINV)) != 0;
2181 G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
2182 V0 = (env->CP0_EntryLo0 & 2) != 0;
2183 D0 = (env->CP0_EntryLo0 & 4) != 0;
2184 XI0 = (env->CP0_EntryLo0 >> CP0EnLo_XI) &1;
2185 RI0 = (env->CP0_EntryLo0 >> CP0EnLo_RI) &1;
2186 V1 = (env->CP0_EntryLo1 & 2) != 0;
2187 D1 = (env->CP0_EntryLo1 & 4) != 0;
2188 XI1 = (env->CP0_EntryLo1 >> CP0EnLo_XI) &1;
2189 RI1 = (env->CP0_EntryLo1 >> CP0EnLo_RI) &1;
2190
2191 /* Discard cached TLB entries, unless tlbwi is just upgrading access
2192 permissions on the current entry. */
2193 if (tlb->VPN != VPN || tlb->ASID != ASID || tlb->G != G ||
2194 (!tlb->EHINV && EHINV) ||
2195 (tlb->V0 && !V0) || (tlb->D0 && !D0) ||
2196 (!tlb->XI0 && XI0) || (!tlb->RI0 && RI0) ||
2197 (tlb->V1 && !V1) || (tlb->D1 && !D1) ||
2198 (!tlb->XI1 && XI1) || (!tlb->RI1 && RI1)) {
2199 r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
2200 }
2201
2202 r4k_invalidate_tlb(env, idx, 0);
2203 r4k_fill_tlb(env, idx);
2204 }
2205
r4k_helper_tlbwr(CPUMIPSState * env)2206 void r4k_helper_tlbwr(CPUMIPSState *env)
2207 {
2208 int r = cpu_mips_get_random(env);
2209
2210 r4k_invalidate_tlb(env, r, 1);
2211 r4k_fill_tlb(env, r);
2212 }
2213
r4k_helper_tlbp(CPUMIPSState * env)2214 void r4k_helper_tlbp(CPUMIPSState *env)
2215 {
2216 r4k_tlb_t *tlb;
2217 target_ulong mask;
2218 target_ulong tag;
2219 target_ulong VPN;
2220 uint16_t ASID;
2221 int i;
2222
2223 ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
2224 for (i = 0; i < env->tlb->nb_tlb; i++) {
2225 tlb = &env->tlb->mmu.r4k.tlb[i];
2226 /* 1k pages are not supported. */
2227 mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
2228 tag = env->CP0_EntryHi & ~mask;
2229 VPN = tlb->VPN & ~mask;
2230 #if defined(TARGET_MIPS64)
2231 tag &= env->SEGMask;
2232 #endif
2233 /* Check ASID, virtual page number & size */
2234 if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag && !tlb->EHINV) {
2235 /* TLB match */
2236 env->CP0_Index = i;
2237 break;
2238 }
2239 }
2240 if (i == env->tlb->nb_tlb) {
2241 /* No match. Discard any shadow entries, if any of them match. */
2242 for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
2243 tlb = &env->tlb->mmu.r4k.tlb[i];
2244 /* 1k pages are not supported. */
2245 mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
2246 tag = env->CP0_EntryHi & ~mask;
2247 VPN = tlb->VPN & ~mask;
2248 #if defined(TARGET_MIPS64)
2249 tag &= env->SEGMask;
2250 #endif
2251 /* Check ASID, virtual page number & size */
2252 if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
2253 r4k_mips_tlb_flush_extra (env, i);
2254 break;
2255 }
2256 }
2257
2258 env->CP0_Index |= 0x80000000;
2259 }
2260 }
2261
get_entrylo_pfn_from_tlb(uint64_t tlb_pfn)2262 static inline uint64_t get_entrylo_pfn_from_tlb(uint64_t tlb_pfn)
2263 {
2264 #if defined(TARGET_MIPS64)
2265 return tlb_pfn << 6;
2266 #else
2267 return (extract64(tlb_pfn, 0, 24) << 6) | /* PFN */
2268 (extract64(tlb_pfn, 24, 32) << 32); /* PFNX */
2269 #endif
2270 }
2271
r4k_helper_tlbr(CPUMIPSState * env)2272 void r4k_helper_tlbr(CPUMIPSState *env)
2273 {
2274 r4k_tlb_t *tlb;
2275 uint16_t ASID;
2276 int idx;
2277
2278 ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
2279 idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
2280 tlb = &env->tlb->mmu.r4k.tlb[idx];
2281
2282 /* If this will change the current ASID, flush qemu's TLB. */
2283 if (ASID != tlb->ASID)
2284 cpu_mips_tlb_flush(env);
2285
2286 r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
2287
2288 if (tlb->EHINV) {
2289 env->CP0_EntryHi = 1 << CP0EnHi_EHINV;
2290 env->CP0_PageMask = 0;
2291 env->CP0_EntryLo0 = 0;
2292 env->CP0_EntryLo1 = 0;
2293 } else {
2294 env->CP0_EntryHi = tlb->VPN | tlb->ASID;
2295 env->CP0_PageMask = tlb->PageMask;
2296 env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) |
2297 ((uint64_t)tlb->RI0 << CP0EnLo_RI) |
2298 ((uint64_t)tlb->XI0 << CP0EnLo_XI) | (tlb->C0 << 3) |
2299 get_entrylo_pfn_from_tlb(tlb->PFN[0] >> 12);
2300 env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) |
2301 ((uint64_t)tlb->RI1 << CP0EnLo_RI) |
2302 ((uint64_t)tlb->XI1 << CP0EnLo_XI) | (tlb->C1 << 3) |
2303 get_entrylo_pfn_from_tlb(tlb->PFN[1] >> 12);
2304 }
2305 }
2306
helper_tlbwi(CPUMIPSState * env)2307 void helper_tlbwi(CPUMIPSState *env)
2308 {
2309 env->tlb->helper_tlbwi(env);
2310 }
2311
helper_tlbwr(CPUMIPSState * env)2312 void helper_tlbwr(CPUMIPSState *env)
2313 {
2314 env->tlb->helper_tlbwr(env);
2315 }
2316
helper_tlbp(CPUMIPSState * env)2317 void helper_tlbp(CPUMIPSState *env)
2318 {
2319 env->tlb->helper_tlbp(env);
2320 }
2321
helper_tlbr(CPUMIPSState * env)2322 void helper_tlbr(CPUMIPSState *env)
2323 {
2324 env->tlb->helper_tlbr(env);
2325 }
2326
helper_tlbinv(CPUMIPSState * env)2327 void helper_tlbinv(CPUMIPSState *env)
2328 {
2329 env->tlb->helper_tlbinv(env);
2330 }
2331
helper_tlbinvf(CPUMIPSState * env)2332 void helper_tlbinvf(CPUMIPSState *env)
2333 {
2334 env->tlb->helper_tlbinvf(env);
2335 }
2336
2337 /* Specials */
helper_di(CPUMIPSState * env)2338 target_ulong helper_di(CPUMIPSState *env)
2339 {
2340 target_ulong t0 = env->CP0_Status;
2341
2342 env->CP0_Status = t0 & ~(1 << CP0St_IE);
2343 return t0;
2344 }
2345
helper_ei(CPUMIPSState * env)2346 target_ulong helper_ei(CPUMIPSState *env)
2347 {
2348 target_ulong t0 = env->CP0_Status;
2349
2350 env->CP0_Status = t0 | (1 << CP0St_IE);
2351 return t0;
2352 }
2353
debug_pre_eret(CPUMIPSState * env)2354 static void debug_pre_eret(CPUMIPSState *env)
2355 {
2356 if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
2357 qemu_log("ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
2358 env->active_tc.PC, env->CP0_EPC);
2359 if (env->CP0_Status & (1 << CP0St_ERL))
2360 qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
2361 if (env->hflags & MIPS_HFLAG_DM)
2362 qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
2363 qemu_log("\n");
2364 }
2365 }
2366
debug_post_eret(CPUMIPSState * env)2367 static void debug_post_eret(CPUMIPSState *env)
2368 {
2369 MIPSCPU *cpu = mips_env_get_cpu(env);
2370
2371 if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
2372 qemu_log(" => PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
2373 env->active_tc.PC, env->CP0_EPC);
2374 if (env->CP0_Status & (1 << CP0St_ERL))
2375 qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
2376 if (env->hflags & MIPS_HFLAG_DM)
2377 qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
2378 switch (cpu_mmu_index(env, false)) {
2379 case 3:
2380 qemu_log(", ERL\n");
2381 break;
2382 case MIPS_HFLAG_UM: qemu_log(", UM\n"); break;
2383 case MIPS_HFLAG_SM: qemu_log(", SM\n"); break;
2384 case MIPS_HFLAG_KM: qemu_log("\n"); break;
2385 default:
2386 cpu_abort(CPU(cpu), "Invalid MMU mode!\n");
2387 break;
2388 }
2389 }
2390 }
2391
set_pc(CPUMIPSState * env,target_ulong error_pc)2392 static void set_pc(CPUMIPSState *env, target_ulong error_pc)
2393 {
2394 env->active_tc.PC = error_pc & ~(target_ulong)1;
2395 if (error_pc & 1) {
2396 env->hflags |= MIPS_HFLAG_M16;
2397 } else {
2398 env->hflags &= ~(MIPS_HFLAG_M16);
2399 }
2400 }
2401
exception_return(CPUMIPSState * env)2402 static inline void exception_return(CPUMIPSState *env)
2403 {
2404 debug_pre_eret(env);
2405 if (env->CP0_Status & (1 << CP0St_ERL)) {
2406 set_pc(env, env->CP0_ErrorEPC);
2407 env->CP0_Status &= ~(1 << CP0St_ERL);
2408 } else {
2409 set_pc(env, env->CP0_EPC);
2410 env->CP0_Status &= ~(1 << CP0St_EXL);
2411 }
2412 compute_hflags(env);
2413 debug_post_eret(env);
2414 }
2415
helper_eret(CPUMIPSState * env)2416 void helper_eret(CPUMIPSState *env)
2417 {
2418 exception_return(env);
2419 env->lladdr = 1;
2420 }
2421
helper_eretnc(CPUMIPSState * env)2422 void helper_eretnc(CPUMIPSState *env)
2423 {
2424 exception_return(env);
2425 }
2426
helper_deret(CPUMIPSState * env)2427 void helper_deret(CPUMIPSState *env)
2428 {
2429 debug_pre_eret(env);
2430
2431 env->hflags &= ~MIPS_HFLAG_DM;
2432 compute_hflags(env);
2433
2434 set_pc(env, env->CP0_DEPC);
2435
2436 debug_post_eret(env);
2437 }
2438 #endif /* !CONFIG_USER_ONLY */
2439
check_hwrena(CPUMIPSState * env,int reg,uintptr_t pc)2440 static inline void check_hwrena(CPUMIPSState *env, int reg, uintptr_t pc)
2441 {
2442 if ((env->hflags & MIPS_HFLAG_CP0) || (env->CP0_HWREna & (1 << reg))) {
2443 return;
2444 }
2445 do_raise_exception(env, EXCP_RI, pc);
2446 }
2447
helper_rdhwr_cpunum(CPUMIPSState * env)2448 target_ulong helper_rdhwr_cpunum(CPUMIPSState *env)
2449 {
2450 check_hwrena(env, 0, GETPC());
2451 return env->CP0_EBase & 0x3ff;
2452 }
2453
helper_rdhwr_synci_step(CPUMIPSState * env)2454 target_ulong helper_rdhwr_synci_step(CPUMIPSState *env)
2455 {
2456 check_hwrena(env, 1, GETPC());
2457 return env->SYNCI_Step;
2458 }
2459
helper_rdhwr_cc(CPUMIPSState * env)2460 target_ulong helper_rdhwr_cc(CPUMIPSState *env)
2461 {
2462 int32_t count;
2463 check_hwrena(env, 2, GETPC());
2464 #ifdef CONFIG_USER_ONLY
2465 count = env->CP0_Count;
2466 #else
2467 qemu_mutex_lock_iothread();
2468 count = (int32_t)cpu_mips_get_count(env);
2469 qemu_mutex_unlock_iothread();
2470 #endif
2471 return count;
2472 }
2473
helper_rdhwr_ccres(CPUMIPSState * env)2474 target_ulong helper_rdhwr_ccres(CPUMIPSState *env)
2475 {
2476 check_hwrena(env, 3, GETPC());
2477 return env->CCRes;
2478 }
2479
helper_rdhwr_performance(CPUMIPSState * env)2480 target_ulong helper_rdhwr_performance(CPUMIPSState *env)
2481 {
2482 check_hwrena(env, 4, GETPC());
2483 return env->CP0_Performance0;
2484 }
2485
helper_rdhwr_xnp(CPUMIPSState * env)2486 target_ulong helper_rdhwr_xnp(CPUMIPSState *env)
2487 {
2488 check_hwrena(env, 5, GETPC());
2489 return (env->CP0_Config5 >> CP0C5_XNP) & 1;
2490 }
2491
helper_pmon(CPUMIPSState * env,int function)2492 void helper_pmon(CPUMIPSState *env, int function)
2493 {
2494 function /= 2;
2495 switch (function) {
2496 case 2: /* TODO: char inbyte(int waitflag); */
2497 if (env->active_tc.gpr[4] == 0)
2498 env->active_tc.gpr[2] = -1;
2499 /* Fall through */
2500 case 11: /* TODO: char inbyte (void); */
2501 env->active_tc.gpr[2] = -1;
2502 break;
2503 case 3:
2504 case 12:
2505 printf("%c", (char)(env->active_tc.gpr[4] & 0xFF));
2506 break;
2507 case 17:
2508 break;
2509 case 158:
2510 {
2511 unsigned char *fmt = (void *)(uintptr_t)env->active_tc.gpr[4];
2512 printf("%s", fmt);
2513 }
2514 break;
2515 }
2516 }
2517
helper_wait(CPUMIPSState * env)2518 void helper_wait(CPUMIPSState *env)
2519 {
2520 CPUState *cs = CPU(mips_env_get_cpu(env));
2521
2522 cs->halted = 1;
2523 cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
2524 /* Last instruction in the block, PC was updated before
2525 - no need to recover PC and icount */
2526 raise_exception(env, EXCP_HLT);
2527 }
2528
2529 #if !defined(CONFIG_USER_ONLY)
2530
mips_cpu_do_unaligned_access(CPUState * cs,vaddr addr,MMUAccessType access_type,int mmu_idx,uintptr_t retaddr)2531 void mips_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
2532 MMUAccessType access_type,
2533 int mmu_idx, uintptr_t retaddr)
2534 {
2535 MIPSCPU *cpu = MIPS_CPU(cs);
2536 CPUMIPSState *env = &cpu->env;
2537 int error_code = 0;
2538 int excp;
2539
2540 if (!(env->hflags & MIPS_HFLAG_DM)) {
2541 env->CP0_BadVAddr = addr;
2542 }
2543
2544 if (access_type == MMU_DATA_STORE) {
2545 excp = EXCP_AdES;
2546 } else {
2547 excp = EXCP_AdEL;
2548 if (access_type == MMU_INST_FETCH) {
2549 error_code |= EXCP_INST_NOTAVAIL;
2550 }
2551 }
2552
2553 do_raise_exception_err(env, excp, error_code, retaddr);
2554 }
2555
tlb_fill(CPUState * cs,target_ulong addr,int size,MMUAccessType access_type,int mmu_idx,uintptr_t retaddr)2556 void tlb_fill(CPUState *cs, target_ulong addr, int size,
2557 MMUAccessType access_type, int mmu_idx, uintptr_t retaddr)
2558 {
2559 int ret;
2560
2561 ret = mips_cpu_handle_mmu_fault(cs, addr, size, access_type, mmu_idx);
2562 if (ret) {
2563 MIPSCPU *cpu = MIPS_CPU(cs);
2564 CPUMIPSState *env = &cpu->env;
2565
2566 do_raise_exception_err(env, cs->exception_index,
2567 env->error_code, retaddr);
2568 }
2569 }
2570
mips_cpu_unassigned_access(CPUState * cs,hwaddr addr,bool is_write,bool is_exec,int unused,unsigned size)2571 void mips_cpu_unassigned_access(CPUState *cs, hwaddr addr,
2572 bool is_write, bool is_exec, int unused,
2573 unsigned size)
2574 {
2575 MIPSCPU *cpu = MIPS_CPU(cs);
2576 CPUMIPSState *env = &cpu->env;
2577
2578 /*
2579 * Raising an exception with KVM enabled will crash because it won't be from
2580 * the main execution loop so the longjmp won't have a matching setjmp.
2581 * Until we can trigger a bus error exception through KVM lets just ignore
2582 * the access.
2583 */
2584 if (kvm_enabled()) {
2585 return;
2586 }
2587
2588 if (is_exec) {
2589 raise_exception(env, EXCP_IBE);
2590 } else {
2591 raise_exception(env, EXCP_DBE);
2592 }
2593 }
2594 #endif /* !CONFIG_USER_ONLY */
2595
2596 /* Complex FPU operations which may need stack space. */
2597
2598 #define FLOAT_TWO32 make_float32(1 << 30)
2599 #define FLOAT_TWO64 make_float64(1ULL << 62)
2600
2601 #define FP_TO_INT32_OVERFLOW 0x7fffffff
2602 #define FP_TO_INT64_OVERFLOW 0x7fffffffffffffffULL
2603
2604 /* convert MIPS rounding mode in FCR31 to IEEE library */
2605 unsigned int ieee_rm[] = {
2606 float_round_nearest_even,
2607 float_round_to_zero,
2608 float_round_up,
2609 float_round_down
2610 };
2611
helper_cfc1(CPUMIPSState * env,uint32_t reg)2612 target_ulong helper_cfc1(CPUMIPSState *env, uint32_t reg)
2613 {
2614 target_ulong arg1 = 0;
2615
2616 switch (reg) {
2617 case 0:
2618 arg1 = (int32_t)env->active_fpu.fcr0;
2619 break;
2620 case 1:
2621 /* UFR Support - Read Status FR */
2622 if (env->active_fpu.fcr0 & (1 << FCR0_UFRP)) {
2623 if (env->CP0_Config5 & (1 << CP0C5_UFR)) {
2624 arg1 = (int32_t)
2625 ((env->CP0_Status & (1 << CP0St_FR)) >> CP0St_FR);
2626 } else {
2627 do_raise_exception(env, EXCP_RI, GETPC());
2628 }
2629 }
2630 break;
2631 case 5:
2632 /* FRE Support - read Config5.FRE bit */
2633 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
2634 if (env->CP0_Config5 & (1 << CP0C5_UFE)) {
2635 arg1 = (env->CP0_Config5 >> CP0C5_FRE) & 1;
2636 } else {
2637 helper_raise_exception(env, EXCP_RI);
2638 }
2639 }
2640 break;
2641 case 25:
2642 arg1 = ((env->active_fpu.fcr31 >> 24) & 0xfe) | ((env->active_fpu.fcr31 >> 23) & 0x1);
2643 break;
2644 case 26:
2645 arg1 = env->active_fpu.fcr31 & 0x0003f07c;
2646 break;
2647 case 28:
2648 arg1 = (env->active_fpu.fcr31 & 0x00000f83) | ((env->active_fpu.fcr31 >> 22) & 0x4);
2649 break;
2650 default:
2651 arg1 = (int32_t)env->active_fpu.fcr31;
2652 break;
2653 }
2654
2655 return arg1;
2656 }
2657
helper_ctc1(CPUMIPSState * env,target_ulong arg1,uint32_t fs,uint32_t rt)2658 void helper_ctc1(CPUMIPSState *env, target_ulong arg1, uint32_t fs, uint32_t rt)
2659 {
2660 switch (fs) {
2661 case 1:
2662 /* UFR Alias - Reset Status FR */
2663 if (!((env->active_fpu.fcr0 & (1 << FCR0_UFRP)) && (rt == 0))) {
2664 return;
2665 }
2666 if (env->CP0_Config5 & (1 << CP0C5_UFR)) {
2667 env->CP0_Status &= ~(1 << CP0St_FR);
2668 compute_hflags(env);
2669 } else {
2670 do_raise_exception(env, EXCP_RI, GETPC());
2671 }
2672 break;
2673 case 4:
2674 /* UNFR Alias - Set Status FR */
2675 if (!((env->active_fpu.fcr0 & (1 << FCR0_UFRP)) && (rt == 0))) {
2676 return;
2677 }
2678 if (env->CP0_Config5 & (1 << CP0C5_UFR)) {
2679 env->CP0_Status |= (1 << CP0St_FR);
2680 compute_hflags(env);
2681 } else {
2682 do_raise_exception(env, EXCP_RI, GETPC());
2683 }
2684 break;
2685 case 5:
2686 /* FRE Support - clear Config5.FRE bit */
2687 if (!((env->active_fpu.fcr0 & (1 << FCR0_FREP)) && (rt == 0))) {
2688 return;
2689 }
2690 if (env->CP0_Config5 & (1 << CP0C5_UFE)) {
2691 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
2692 compute_hflags(env);
2693 } else {
2694 helper_raise_exception(env, EXCP_RI);
2695 }
2696 break;
2697 case 6:
2698 /* FRE Support - set Config5.FRE bit */
2699 if (!((env->active_fpu.fcr0 & (1 << FCR0_FREP)) && (rt == 0))) {
2700 return;
2701 }
2702 if (env->CP0_Config5 & (1 << CP0C5_UFE)) {
2703 env->CP0_Config5 |= (1 << CP0C5_FRE);
2704 compute_hflags(env);
2705 } else {
2706 helper_raise_exception(env, EXCP_RI);
2707 }
2708 break;
2709 case 25:
2710 if ((env->insn_flags & ISA_MIPS32R6) || (arg1 & 0xffffff00)) {
2711 return;
2712 }
2713 env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0x017fffff) | ((arg1 & 0xfe) << 24) |
2714 ((arg1 & 0x1) << 23);
2715 break;
2716 case 26:
2717 if (arg1 & 0x007c0000)
2718 return;
2719 env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0xfffc0f83) | (arg1 & 0x0003f07c);
2720 break;
2721 case 28:
2722 if (arg1 & 0x007c0000)
2723 return;
2724 env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0xfefff07c) | (arg1 & 0x00000f83) |
2725 ((arg1 & 0x4) << 22);
2726 break;
2727 case 31:
2728 env->active_fpu.fcr31 = (arg1 & env->active_fpu.fcr31_rw_bitmask) |
2729 (env->active_fpu.fcr31 & ~(env->active_fpu.fcr31_rw_bitmask));
2730 break;
2731 default:
2732 if (env->insn_flags & ISA_MIPS32R6) {
2733 do_raise_exception(env, EXCP_RI, GETPC());
2734 }
2735 return;
2736 }
2737 restore_fp_status(env);
2738 set_float_exception_flags(0, &env->active_fpu.fp_status);
2739 if ((GET_FP_ENABLE(env->active_fpu.fcr31) | 0x20) & GET_FP_CAUSE(env->active_fpu.fcr31))
2740 do_raise_exception(env, EXCP_FPE, GETPC());
2741 }
2742
ieee_ex_to_mips(int xcpt)2743 int ieee_ex_to_mips(int xcpt)
2744 {
2745 int ret = 0;
2746 if (xcpt) {
2747 if (xcpt & float_flag_invalid) {
2748 ret |= FP_INVALID;
2749 }
2750 if (xcpt & float_flag_overflow) {
2751 ret |= FP_OVERFLOW;
2752 }
2753 if (xcpt & float_flag_underflow) {
2754 ret |= FP_UNDERFLOW;
2755 }
2756 if (xcpt & float_flag_divbyzero) {
2757 ret |= FP_DIV0;
2758 }
2759 if (xcpt & float_flag_inexact) {
2760 ret |= FP_INEXACT;
2761 }
2762 }
2763 return ret;
2764 }
2765
update_fcr31(CPUMIPSState * env,uintptr_t pc)2766 static inline void update_fcr31(CPUMIPSState *env, uintptr_t pc)
2767 {
2768 int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->active_fpu.fp_status));
2769
2770 SET_FP_CAUSE(env->active_fpu.fcr31, tmp);
2771
2772 if (tmp) {
2773 set_float_exception_flags(0, &env->active_fpu.fp_status);
2774
2775 if (GET_FP_ENABLE(env->active_fpu.fcr31) & tmp) {
2776 do_raise_exception(env, EXCP_FPE, pc);
2777 } else {
2778 UPDATE_FP_FLAGS(env->active_fpu.fcr31, tmp);
2779 }
2780 }
2781 }
2782
2783 /* Float support.
2784 Single precition routines have a "s" suffix, double precision a
2785 "d" suffix, 32bit integer "w", 64bit integer "l", paired single "ps",
2786 paired single lower "pl", paired single upper "pu". */
2787
2788 /* unary operations, modifying fp status */
helper_float_sqrt_d(CPUMIPSState * env,uint64_t fdt0)2789 uint64_t helper_float_sqrt_d(CPUMIPSState *env, uint64_t fdt0)
2790 {
2791 fdt0 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2792 update_fcr31(env, GETPC());
2793 return fdt0;
2794 }
2795
helper_float_sqrt_s(CPUMIPSState * env,uint32_t fst0)2796 uint32_t helper_float_sqrt_s(CPUMIPSState *env, uint32_t fst0)
2797 {
2798 fst0 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2799 update_fcr31(env, GETPC());
2800 return fst0;
2801 }
2802
helper_float_cvtd_s(CPUMIPSState * env,uint32_t fst0)2803 uint64_t helper_float_cvtd_s(CPUMIPSState *env, uint32_t fst0)
2804 {
2805 uint64_t fdt2;
2806
2807 fdt2 = float32_to_float64(fst0, &env->active_fpu.fp_status);
2808 update_fcr31(env, GETPC());
2809 return fdt2;
2810 }
2811
helper_float_cvtd_w(CPUMIPSState * env,uint32_t wt0)2812 uint64_t helper_float_cvtd_w(CPUMIPSState *env, uint32_t wt0)
2813 {
2814 uint64_t fdt2;
2815
2816 fdt2 = int32_to_float64(wt0, &env->active_fpu.fp_status);
2817 update_fcr31(env, GETPC());
2818 return fdt2;
2819 }
2820
helper_float_cvtd_l(CPUMIPSState * env,uint64_t dt0)2821 uint64_t helper_float_cvtd_l(CPUMIPSState *env, uint64_t dt0)
2822 {
2823 uint64_t fdt2;
2824
2825 fdt2 = int64_to_float64(dt0, &env->active_fpu.fp_status);
2826 update_fcr31(env, GETPC());
2827 return fdt2;
2828 }
2829
helper_float_cvt_l_d(CPUMIPSState * env,uint64_t fdt0)2830 uint64_t helper_float_cvt_l_d(CPUMIPSState *env, uint64_t fdt0)
2831 {
2832 uint64_t dt2;
2833
2834 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2835 if (get_float_exception_flags(&env->active_fpu.fp_status)
2836 & (float_flag_invalid | float_flag_overflow)) {
2837 dt2 = FP_TO_INT64_OVERFLOW;
2838 }
2839 update_fcr31(env, GETPC());
2840 return dt2;
2841 }
2842
helper_float_cvt_l_s(CPUMIPSState * env,uint32_t fst0)2843 uint64_t helper_float_cvt_l_s(CPUMIPSState *env, uint32_t fst0)
2844 {
2845 uint64_t dt2;
2846
2847 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2848 if (get_float_exception_flags(&env->active_fpu.fp_status)
2849 & (float_flag_invalid | float_flag_overflow)) {
2850 dt2 = FP_TO_INT64_OVERFLOW;
2851 }
2852 update_fcr31(env, GETPC());
2853 return dt2;
2854 }
2855
helper_float_cvtps_pw(CPUMIPSState * env,uint64_t dt0)2856 uint64_t helper_float_cvtps_pw(CPUMIPSState *env, uint64_t dt0)
2857 {
2858 uint32_t fst2;
2859 uint32_t fsth2;
2860
2861 fst2 = int32_to_float32(dt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2862 fsth2 = int32_to_float32(dt0 >> 32, &env->active_fpu.fp_status);
2863 update_fcr31(env, GETPC());
2864 return ((uint64_t)fsth2 << 32) | fst2;
2865 }
2866
helper_float_cvtpw_ps(CPUMIPSState * env,uint64_t fdt0)2867 uint64_t helper_float_cvtpw_ps(CPUMIPSState *env, uint64_t fdt0)
2868 {
2869 uint32_t wt2;
2870 uint32_t wth2;
2871 int excp, excph;
2872
2873 wt2 = float32_to_int32(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2874 excp = get_float_exception_flags(&env->active_fpu.fp_status);
2875 if (excp & (float_flag_overflow | float_flag_invalid)) {
2876 wt2 = FP_TO_INT32_OVERFLOW;
2877 }
2878
2879 set_float_exception_flags(0, &env->active_fpu.fp_status);
2880 wth2 = float32_to_int32(fdt0 >> 32, &env->active_fpu.fp_status);
2881 excph = get_float_exception_flags(&env->active_fpu.fp_status);
2882 if (excph & (float_flag_overflow | float_flag_invalid)) {
2883 wth2 = FP_TO_INT32_OVERFLOW;
2884 }
2885
2886 set_float_exception_flags(excp | excph, &env->active_fpu.fp_status);
2887 update_fcr31(env, GETPC());
2888
2889 return ((uint64_t)wth2 << 32) | wt2;
2890 }
2891
helper_float_cvts_d(CPUMIPSState * env,uint64_t fdt0)2892 uint32_t helper_float_cvts_d(CPUMIPSState *env, uint64_t fdt0)
2893 {
2894 uint32_t fst2;
2895
2896 fst2 = float64_to_float32(fdt0, &env->active_fpu.fp_status);
2897 update_fcr31(env, GETPC());
2898 return fst2;
2899 }
2900
helper_float_cvts_w(CPUMIPSState * env,uint32_t wt0)2901 uint32_t helper_float_cvts_w(CPUMIPSState *env, uint32_t wt0)
2902 {
2903 uint32_t fst2;
2904
2905 fst2 = int32_to_float32(wt0, &env->active_fpu.fp_status);
2906 update_fcr31(env, GETPC());
2907 return fst2;
2908 }
2909
helper_float_cvts_l(CPUMIPSState * env,uint64_t dt0)2910 uint32_t helper_float_cvts_l(CPUMIPSState *env, uint64_t dt0)
2911 {
2912 uint32_t fst2;
2913
2914 fst2 = int64_to_float32(dt0, &env->active_fpu.fp_status);
2915 update_fcr31(env, GETPC());
2916 return fst2;
2917 }
2918
helper_float_cvts_pl(CPUMIPSState * env,uint32_t wt0)2919 uint32_t helper_float_cvts_pl(CPUMIPSState *env, uint32_t wt0)
2920 {
2921 uint32_t wt2;
2922
2923 wt2 = wt0;
2924 update_fcr31(env, GETPC());
2925 return wt2;
2926 }
2927
helper_float_cvts_pu(CPUMIPSState * env,uint32_t wth0)2928 uint32_t helper_float_cvts_pu(CPUMIPSState *env, uint32_t wth0)
2929 {
2930 uint32_t wt2;
2931
2932 wt2 = wth0;
2933 update_fcr31(env, GETPC());
2934 return wt2;
2935 }
2936
helper_float_cvt_w_s(CPUMIPSState * env,uint32_t fst0)2937 uint32_t helper_float_cvt_w_s(CPUMIPSState *env, uint32_t fst0)
2938 {
2939 uint32_t wt2;
2940
2941 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2942 if (get_float_exception_flags(&env->active_fpu.fp_status)
2943 & (float_flag_invalid | float_flag_overflow)) {
2944 wt2 = FP_TO_INT32_OVERFLOW;
2945 }
2946 update_fcr31(env, GETPC());
2947 return wt2;
2948 }
2949
helper_float_cvt_w_d(CPUMIPSState * env,uint64_t fdt0)2950 uint32_t helper_float_cvt_w_d(CPUMIPSState *env, uint64_t fdt0)
2951 {
2952 uint32_t wt2;
2953
2954 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2955 if (get_float_exception_flags(&env->active_fpu.fp_status)
2956 & (float_flag_invalid | float_flag_overflow)) {
2957 wt2 = FP_TO_INT32_OVERFLOW;
2958 }
2959 update_fcr31(env, GETPC());
2960 return wt2;
2961 }
2962
helper_float_round_l_d(CPUMIPSState * env,uint64_t fdt0)2963 uint64_t helper_float_round_l_d(CPUMIPSState *env, uint64_t fdt0)
2964 {
2965 uint64_t dt2;
2966
2967 set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2968 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2969 restore_rounding_mode(env);
2970 if (get_float_exception_flags(&env->active_fpu.fp_status)
2971 & (float_flag_invalid | float_flag_overflow)) {
2972 dt2 = FP_TO_INT64_OVERFLOW;
2973 }
2974 update_fcr31(env, GETPC());
2975 return dt2;
2976 }
2977
helper_float_round_l_s(CPUMIPSState * env,uint32_t fst0)2978 uint64_t helper_float_round_l_s(CPUMIPSState *env, uint32_t fst0)
2979 {
2980 uint64_t dt2;
2981
2982 set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2983 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2984 restore_rounding_mode(env);
2985 if (get_float_exception_flags(&env->active_fpu.fp_status)
2986 & (float_flag_invalid | float_flag_overflow)) {
2987 dt2 = FP_TO_INT64_OVERFLOW;
2988 }
2989 update_fcr31(env, GETPC());
2990 return dt2;
2991 }
2992
helper_float_round_w_d(CPUMIPSState * env,uint64_t fdt0)2993 uint32_t helper_float_round_w_d(CPUMIPSState *env, uint64_t fdt0)
2994 {
2995 uint32_t wt2;
2996
2997 set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2998 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2999 restore_rounding_mode(env);
3000 if (get_float_exception_flags(&env->active_fpu.fp_status)
3001 & (float_flag_invalid | float_flag_overflow)) {
3002 wt2 = FP_TO_INT32_OVERFLOW;
3003 }
3004 update_fcr31(env, GETPC());
3005 return wt2;
3006 }
3007
helper_float_round_w_s(CPUMIPSState * env,uint32_t fst0)3008 uint32_t helper_float_round_w_s(CPUMIPSState *env, uint32_t fst0)
3009 {
3010 uint32_t wt2;
3011
3012 set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
3013 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3014 restore_rounding_mode(env);
3015 if (get_float_exception_flags(&env->active_fpu.fp_status)
3016 & (float_flag_invalid | float_flag_overflow)) {
3017 wt2 = FP_TO_INT32_OVERFLOW;
3018 }
3019 update_fcr31(env, GETPC());
3020 return wt2;
3021 }
3022
helper_float_trunc_l_d(CPUMIPSState * env,uint64_t fdt0)3023 uint64_t helper_float_trunc_l_d(CPUMIPSState *env, uint64_t fdt0)
3024 {
3025 uint64_t dt2;
3026
3027 dt2 = float64_to_int64_round_to_zero(fdt0, &env->active_fpu.fp_status);
3028 if (get_float_exception_flags(&env->active_fpu.fp_status)
3029 & (float_flag_invalid | float_flag_overflow)) {
3030 dt2 = FP_TO_INT64_OVERFLOW;
3031 }
3032 update_fcr31(env, GETPC());
3033 return dt2;
3034 }
3035
helper_float_trunc_l_s(CPUMIPSState * env,uint32_t fst0)3036 uint64_t helper_float_trunc_l_s(CPUMIPSState *env, uint32_t fst0)
3037 {
3038 uint64_t dt2;
3039
3040 dt2 = float32_to_int64_round_to_zero(fst0, &env->active_fpu.fp_status);
3041 if (get_float_exception_flags(&env->active_fpu.fp_status)
3042 & (float_flag_invalid | float_flag_overflow)) {
3043 dt2 = FP_TO_INT64_OVERFLOW;
3044 }
3045 update_fcr31(env, GETPC());
3046 return dt2;
3047 }
3048
helper_float_trunc_w_d(CPUMIPSState * env,uint64_t fdt0)3049 uint32_t helper_float_trunc_w_d(CPUMIPSState *env, uint64_t fdt0)
3050 {
3051 uint32_t wt2;
3052
3053 wt2 = float64_to_int32_round_to_zero(fdt0, &env->active_fpu.fp_status);
3054 if (get_float_exception_flags(&env->active_fpu.fp_status)
3055 & (float_flag_invalid | float_flag_overflow)) {
3056 wt2 = FP_TO_INT32_OVERFLOW;
3057 }
3058 update_fcr31(env, GETPC());
3059 return wt2;
3060 }
3061
helper_float_trunc_w_s(CPUMIPSState * env,uint32_t fst0)3062 uint32_t helper_float_trunc_w_s(CPUMIPSState *env, uint32_t fst0)
3063 {
3064 uint32_t wt2;
3065
3066 wt2 = float32_to_int32_round_to_zero(fst0, &env->active_fpu.fp_status);
3067 if (get_float_exception_flags(&env->active_fpu.fp_status)
3068 & (float_flag_invalid | float_flag_overflow)) {
3069 wt2 = FP_TO_INT32_OVERFLOW;
3070 }
3071 update_fcr31(env, GETPC());
3072 return wt2;
3073 }
3074
helper_float_ceil_l_d(CPUMIPSState * env,uint64_t fdt0)3075 uint64_t helper_float_ceil_l_d(CPUMIPSState *env, uint64_t fdt0)
3076 {
3077 uint64_t dt2;
3078
3079 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3080 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
3081 restore_rounding_mode(env);
3082 if (get_float_exception_flags(&env->active_fpu.fp_status)
3083 & (float_flag_invalid | float_flag_overflow)) {
3084 dt2 = FP_TO_INT64_OVERFLOW;
3085 }
3086 update_fcr31(env, GETPC());
3087 return dt2;
3088 }
3089
helper_float_ceil_l_s(CPUMIPSState * env,uint32_t fst0)3090 uint64_t helper_float_ceil_l_s(CPUMIPSState *env, uint32_t fst0)
3091 {
3092 uint64_t dt2;
3093
3094 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3095 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
3096 restore_rounding_mode(env);
3097 if (get_float_exception_flags(&env->active_fpu.fp_status)
3098 & (float_flag_invalid | float_flag_overflow)) {
3099 dt2 = FP_TO_INT64_OVERFLOW;
3100 }
3101 update_fcr31(env, GETPC());
3102 return dt2;
3103 }
3104
helper_float_ceil_w_d(CPUMIPSState * env,uint64_t fdt0)3105 uint32_t helper_float_ceil_w_d(CPUMIPSState *env, uint64_t fdt0)
3106 {
3107 uint32_t wt2;
3108
3109 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3110 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
3111 restore_rounding_mode(env);
3112 if (get_float_exception_flags(&env->active_fpu.fp_status)
3113 & (float_flag_invalid | float_flag_overflow)) {
3114 wt2 = FP_TO_INT32_OVERFLOW;
3115 }
3116 update_fcr31(env, GETPC());
3117 return wt2;
3118 }
3119
helper_float_ceil_w_s(CPUMIPSState * env,uint32_t fst0)3120 uint32_t helper_float_ceil_w_s(CPUMIPSState *env, uint32_t fst0)
3121 {
3122 uint32_t wt2;
3123
3124 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3125 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3126 restore_rounding_mode(env);
3127 if (get_float_exception_flags(&env->active_fpu.fp_status)
3128 & (float_flag_invalid | float_flag_overflow)) {
3129 wt2 = FP_TO_INT32_OVERFLOW;
3130 }
3131 update_fcr31(env, GETPC());
3132 return wt2;
3133 }
3134
helper_float_floor_l_d(CPUMIPSState * env,uint64_t fdt0)3135 uint64_t helper_float_floor_l_d(CPUMIPSState *env, uint64_t fdt0)
3136 {
3137 uint64_t dt2;
3138
3139 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3140 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
3141 restore_rounding_mode(env);
3142 if (get_float_exception_flags(&env->active_fpu.fp_status)
3143 & (float_flag_invalid | float_flag_overflow)) {
3144 dt2 = FP_TO_INT64_OVERFLOW;
3145 }
3146 update_fcr31(env, GETPC());
3147 return dt2;
3148 }
3149
helper_float_floor_l_s(CPUMIPSState * env,uint32_t fst0)3150 uint64_t helper_float_floor_l_s(CPUMIPSState *env, uint32_t fst0)
3151 {
3152 uint64_t dt2;
3153
3154 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3155 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
3156 restore_rounding_mode(env);
3157 if (get_float_exception_flags(&env->active_fpu.fp_status)
3158 & (float_flag_invalid | float_flag_overflow)) {
3159 dt2 = FP_TO_INT64_OVERFLOW;
3160 }
3161 update_fcr31(env, GETPC());
3162 return dt2;
3163 }
3164
helper_float_floor_w_d(CPUMIPSState * env,uint64_t fdt0)3165 uint32_t helper_float_floor_w_d(CPUMIPSState *env, uint64_t fdt0)
3166 {
3167 uint32_t wt2;
3168
3169 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3170 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
3171 restore_rounding_mode(env);
3172 if (get_float_exception_flags(&env->active_fpu.fp_status)
3173 & (float_flag_invalid | float_flag_overflow)) {
3174 wt2 = FP_TO_INT32_OVERFLOW;
3175 }
3176 update_fcr31(env, GETPC());
3177 return wt2;
3178 }
3179
helper_float_floor_w_s(CPUMIPSState * env,uint32_t fst0)3180 uint32_t helper_float_floor_w_s(CPUMIPSState *env, uint32_t fst0)
3181 {
3182 uint32_t wt2;
3183
3184 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3185 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3186 restore_rounding_mode(env);
3187 if (get_float_exception_flags(&env->active_fpu.fp_status)
3188 & (float_flag_invalid | float_flag_overflow)) {
3189 wt2 = FP_TO_INT32_OVERFLOW;
3190 }
3191 update_fcr31(env, GETPC());
3192 return wt2;
3193 }
3194
helper_float_cvt_2008_l_d(CPUMIPSState * env,uint64_t fdt0)3195 uint64_t helper_float_cvt_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
3196 {
3197 uint64_t dt2;
3198
3199 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
3200 if (get_float_exception_flags(&env->active_fpu.fp_status)
3201 & float_flag_invalid) {
3202 if (float64_is_any_nan(fdt0)) {
3203 dt2 = 0;
3204 }
3205 }
3206 update_fcr31(env, GETPC());
3207 return dt2;
3208 }
3209
helper_float_cvt_2008_l_s(CPUMIPSState * env,uint32_t fst0)3210 uint64_t helper_float_cvt_2008_l_s(CPUMIPSState *env, uint32_t fst0)
3211 {
3212 uint64_t dt2;
3213
3214 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
3215 if (get_float_exception_flags(&env->active_fpu.fp_status)
3216 & float_flag_invalid) {
3217 if (float32_is_any_nan(fst0)) {
3218 dt2 = 0;
3219 }
3220 }
3221 update_fcr31(env, GETPC());
3222 return dt2;
3223 }
3224
helper_float_cvt_2008_w_d(CPUMIPSState * env,uint64_t fdt0)3225 uint32_t helper_float_cvt_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
3226 {
3227 uint32_t wt2;
3228
3229 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
3230 if (get_float_exception_flags(&env->active_fpu.fp_status)
3231 & float_flag_invalid) {
3232 if (float64_is_any_nan(fdt0)) {
3233 wt2 = 0;
3234 }
3235 }
3236 update_fcr31(env, GETPC());
3237 return wt2;
3238 }
3239
helper_float_cvt_2008_w_s(CPUMIPSState * env,uint32_t fst0)3240 uint32_t helper_float_cvt_2008_w_s(CPUMIPSState *env, uint32_t fst0)
3241 {
3242 uint32_t wt2;
3243
3244 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3245 if (get_float_exception_flags(&env->active_fpu.fp_status)
3246 & float_flag_invalid) {
3247 if (float32_is_any_nan(fst0)) {
3248 wt2 = 0;
3249 }
3250 }
3251 update_fcr31(env, GETPC());
3252 return wt2;
3253 }
3254
helper_float_round_2008_l_d(CPUMIPSState * env,uint64_t fdt0)3255 uint64_t helper_float_round_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
3256 {
3257 uint64_t dt2;
3258
3259 set_float_rounding_mode(float_round_nearest_even,
3260 &env->active_fpu.fp_status);
3261 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
3262 restore_rounding_mode(env);
3263 if (get_float_exception_flags(&env->active_fpu.fp_status)
3264 & float_flag_invalid) {
3265 if (float64_is_any_nan(fdt0)) {
3266 dt2 = 0;
3267 }
3268 }
3269 update_fcr31(env, GETPC());
3270 return dt2;
3271 }
3272
helper_float_round_2008_l_s(CPUMIPSState * env,uint32_t fst0)3273 uint64_t helper_float_round_2008_l_s(CPUMIPSState *env, uint32_t fst0)
3274 {
3275 uint64_t dt2;
3276
3277 set_float_rounding_mode(float_round_nearest_even,
3278 &env->active_fpu.fp_status);
3279 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
3280 restore_rounding_mode(env);
3281 if (get_float_exception_flags(&env->active_fpu.fp_status)
3282 & float_flag_invalid) {
3283 if (float32_is_any_nan(fst0)) {
3284 dt2 = 0;
3285 }
3286 }
3287 update_fcr31(env, GETPC());
3288 return dt2;
3289 }
3290
helper_float_round_2008_w_d(CPUMIPSState * env,uint64_t fdt0)3291 uint32_t helper_float_round_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
3292 {
3293 uint32_t wt2;
3294
3295 set_float_rounding_mode(float_round_nearest_even,
3296 &env->active_fpu.fp_status);
3297 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
3298 restore_rounding_mode(env);
3299 if (get_float_exception_flags(&env->active_fpu.fp_status)
3300 & float_flag_invalid) {
3301 if (float64_is_any_nan(fdt0)) {
3302 wt2 = 0;
3303 }
3304 }
3305 update_fcr31(env, GETPC());
3306 return wt2;
3307 }
3308
helper_float_round_2008_w_s(CPUMIPSState * env,uint32_t fst0)3309 uint32_t helper_float_round_2008_w_s(CPUMIPSState *env, uint32_t fst0)
3310 {
3311 uint32_t wt2;
3312
3313 set_float_rounding_mode(float_round_nearest_even,
3314 &env->active_fpu.fp_status);
3315 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3316 restore_rounding_mode(env);
3317 if (get_float_exception_flags(&env->active_fpu.fp_status)
3318 & float_flag_invalid) {
3319 if (float32_is_any_nan(fst0)) {
3320 wt2 = 0;
3321 }
3322 }
3323 update_fcr31(env, GETPC());
3324 return wt2;
3325 }
3326
helper_float_trunc_2008_l_d(CPUMIPSState * env,uint64_t fdt0)3327 uint64_t helper_float_trunc_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
3328 {
3329 uint64_t dt2;
3330
3331 dt2 = float64_to_int64_round_to_zero(fdt0, &env->active_fpu.fp_status);
3332 if (get_float_exception_flags(&env->active_fpu.fp_status)
3333 & float_flag_invalid) {
3334 if (float64_is_any_nan(fdt0)) {
3335 dt2 = 0;
3336 }
3337 }
3338 update_fcr31(env, GETPC());
3339 return dt2;
3340 }
3341
helper_float_trunc_2008_l_s(CPUMIPSState * env,uint32_t fst0)3342 uint64_t helper_float_trunc_2008_l_s(CPUMIPSState *env, uint32_t fst0)
3343 {
3344 uint64_t dt2;
3345
3346 dt2 = float32_to_int64_round_to_zero(fst0, &env->active_fpu.fp_status);
3347 if (get_float_exception_flags(&env->active_fpu.fp_status)
3348 & float_flag_invalid) {
3349 if (float32_is_any_nan(fst0)) {
3350 dt2 = 0;
3351 }
3352 }
3353 update_fcr31(env, GETPC());
3354 return dt2;
3355 }
3356
helper_float_trunc_2008_w_d(CPUMIPSState * env,uint64_t fdt0)3357 uint32_t helper_float_trunc_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
3358 {
3359 uint32_t wt2;
3360
3361 wt2 = float64_to_int32_round_to_zero(fdt0, &env->active_fpu.fp_status);
3362 if (get_float_exception_flags(&env->active_fpu.fp_status)
3363 & float_flag_invalid) {
3364 if (float64_is_any_nan(fdt0)) {
3365 wt2 = 0;
3366 }
3367 }
3368 update_fcr31(env, GETPC());
3369 return wt2;
3370 }
3371
helper_float_trunc_2008_w_s(CPUMIPSState * env,uint32_t fst0)3372 uint32_t helper_float_trunc_2008_w_s(CPUMIPSState *env, uint32_t fst0)
3373 {
3374 uint32_t wt2;
3375
3376 wt2 = float32_to_int32_round_to_zero(fst0, &env->active_fpu.fp_status);
3377 if (get_float_exception_flags(&env->active_fpu.fp_status)
3378 & float_flag_invalid) {
3379 if (float32_is_any_nan(fst0)) {
3380 wt2 = 0;
3381 }
3382 }
3383 update_fcr31(env, GETPC());
3384 return wt2;
3385 }
3386
helper_float_ceil_2008_l_d(CPUMIPSState * env,uint64_t fdt0)3387 uint64_t helper_float_ceil_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
3388 {
3389 uint64_t dt2;
3390
3391 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3392 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
3393 restore_rounding_mode(env);
3394 if (get_float_exception_flags(&env->active_fpu.fp_status)
3395 & float_flag_invalid) {
3396 if (float64_is_any_nan(fdt0)) {
3397 dt2 = 0;
3398 }
3399 }
3400 update_fcr31(env, GETPC());
3401 return dt2;
3402 }
3403
helper_float_ceil_2008_l_s(CPUMIPSState * env,uint32_t fst0)3404 uint64_t helper_float_ceil_2008_l_s(CPUMIPSState *env, uint32_t fst0)
3405 {
3406 uint64_t dt2;
3407
3408 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3409 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
3410 restore_rounding_mode(env);
3411 if (get_float_exception_flags(&env->active_fpu.fp_status)
3412 & float_flag_invalid) {
3413 if (float32_is_any_nan(fst0)) {
3414 dt2 = 0;
3415 }
3416 }
3417 update_fcr31(env, GETPC());
3418 return dt2;
3419 }
3420
helper_float_ceil_2008_w_d(CPUMIPSState * env,uint64_t fdt0)3421 uint32_t helper_float_ceil_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
3422 {
3423 uint32_t wt2;
3424
3425 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3426 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
3427 restore_rounding_mode(env);
3428 if (get_float_exception_flags(&env->active_fpu.fp_status)
3429 & float_flag_invalid) {
3430 if (float64_is_any_nan(fdt0)) {
3431 wt2 = 0;
3432 }
3433 }
3434 update_fcr31(env, GETPC());
3435 return wt2;
3436 }
3437
helper_float_ceil_2008_w_s(CPUMIPSState * env,uint32_t fst0)3438 uint32_t helper_float_ceil_2008_w_s(CPUMIPSState *env, uint32_t fst0)
3439 {
3440 uint32_t wt2;
3441
3442 set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
3443 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3444 restore_rounding_mode(env);
3445 if (get_float_exception_flags(&env->active_fpu.fp_status)
3446 & float_flag_invalid) {
3447 if (float32_is_any_nan(fst0)) {
3448 wt2 = 0;
3449 }
3450 }
3451 update_fcr31(env, GETPC());
3452 return wt2;
3453 }
3454
helper_float_floor_2008_l_d(CPUMIPSState * env,uint64_t fdt0)3455 uint64_t helper_float_floor_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
3456 {
3457 uint64_t dt2;
3458
3459 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3460 dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
3461 restore_rounding_mode(env);
3462 if (get_float_exception_flags(&env->active_fpu.fp_status)
3463 & float_flag_invalid) {
3464 if (float64_is_any_nan(fdt0)) {
3465 dt2 = 0;
3466 }
3467 }
3468 update_fcr31(env, GETPC());
3469 return dt2;
3470 }
3471
helper_float_floor_2008_l_s(CPUMIPSState * env,uint32_t fst0)3472 uint64_t helper_float_floor_2008_l_s(CPUMIPSState *env, uint32_t fst0)
3473 {
3474 uint64_t dt2;
3475
3476 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3477 dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
3478 restore_rounding_mode(env);
3479 if (get_float_exception_flags(&env->active_fpu.fp_status)
3480 & float_flag_invalid) {
3481 if (float32_is_any_nan(fst0)) {
3482 dt2 = 0;
3483 }
3484 }
3485 update_fcr31(env, GETPC());
3486 return dt2;
3487 }
3488
helper_float_floor_2008_w_d(CPUMIPSState * env,uint64_t fdt0)3489 uint32_t helper_float_floor_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
3490 {
3491 uint32_t wt2;
3492
3493 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3494 wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
3495 restore_rounding_mode(env);
3496 if (get_float_exception_flags(&env->active_fpu.fp_status)
3497 & float_flag_invalid) {
3498 if (float64_is_any_nan(fdt0)) {
3499 wt2 = 0;
3500 }
3501 }
3502 update_fcr31(env, GETPC());
3503 return wt2;
3504 }
3505
helper_float_floor_2008_w_s(CPUMIPSState * env,uint32_t fst0)3506 uint32_t helper_float_floor_2008_w_s(CPUMIPSState *env, uint32_t fst0)
3507 {
3508 uint32_t wt2;
3509
3510 set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
3511 wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
3512 restore_rounding_mode(env);
3513 if (get_float_exception_flags(&env->active_fpu.fp_status)
3514 & float_flag_invalid) {
3515 if (float32_is_any_nan(fst0)) {
3516 wt2 = 0;
3517 }
3518 }
3519 update_fcr31(env, GETPC());
3520 return wt2;
3521 }
3522
3523 /* unary operations, not modifying fp status */
3524 #define FLOAT_UNOP(name) \
3525 uint64_t helper_float_ ## name ## _d(uint64_t fdt0) \
3526 { \
3527 return float64_ ## name(fdt0); \
3528 } \
3529 uint32_t helper_float_ ## name ## _s(uint32_t fst0) \
3530 { \
3531 return float32_ ## name(fst0); \
3532 } \
3533 uint64_t helper_float_ ## name ## _ps(uint64_t fdt0) \
3534 { \
3535 uint32_t wt0; \
3536 uint32_t wth0; \
3537 \
3538 wt0 = float32_ ## name(fdt0 & 0XFFFFFFFF); \
3539 wth0 = float32_ ## name(fdt0 >> 32); \
3540 return ((uint64_t)wth0 << 32) | wt0; \
3541 }
3542 FLOAT_UNOP(abs)
FLOAT_UNOP(chs)3543 FLOAT_UNOP(chs)
3544 #undef FLOAT_UNOP
3545
3546 /* MIPS specific unary operations */
3547 uint64_t helper_float_recip_d(CPUMIPSState *env, uint64_t fdt0)
3548 {
3549 uint64_t fdt2;
3550
3551 fdt2 = float64_div(float64_one, fdt0, &env->active_fpu.fp_status);
3552 update_fcr31(env, GETPC());
3553 return fdt2;
3554 }
3555
helper_float_recip_s(CPUMIPSState * env,uint32_t fst0)3556 uint32_t helper_float_recip_s(CPUMIPSState *env, uint32_t fst0)
3557 {
3558 uint32_t fst2;
3559
3560 fst2 = float32_div(float32_one, fst0, &env->active_fpu.fp_status);
3561 update_fcr31(env, GETPC());
3562 return fst2;
3563 }
3564
helper_float_rsqrt_d(CPUMIPSState * env,uint64_t fdt0)3565 uint64_t helper_float_rsqrt_d(CPUMIPSState *env, uint64_t fdt0)
3566 {
3567 uint64_t fdt2;
3568
3569 fdt2 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
3570 fdt2 = float64_div(float64_one, fdt2, &env->active_fpu.fp_status);
3571 update_fcr31(env, GETPC());
3572 return fdt2;
3573 }
3574
helper_float_rsqrt_s(CPUMIPSState * env,uint32_t fst0)3575 uint32_t helper_float_rsqrt_s(CPUMIPSState *env, uint32_t fst0)
3576 {
3577 uint32_t fst2;
3578
3579 fst2 = float32_sqrt(fst0, &env->active_fpu.fp_status);
3580 fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
3581 update_fcr31(env, GETPC());
3582 return fst2;
3583 }
3584
helper_float_recip1_d(CPUMIPSState * env,uint64_t fdt0)3585 uint64_t helper_float_recip1_d(CPUMIPSState *env, uint64_t fdt0)
3586 {
3587 uint64_t fdt2;
3588
3589 fdt2 = float64_div(float64_one, fdt0, &env->active_fpu.fp_status);
3590 update_fcr31(env, GETPC());
3591 return fdt2;
3592 }
3593
helper_float_recip1_s(CPUMIPSState * env,uint32_t fst0)3594 uint32_t helper_float_recip1_s(CPUMIPSState *env, uint32_t fst0)
3595 {
3596 uint32_t fst2;
3597
3598 fst2 = float32_div(float32_one, fst0, &env->active_fpu.fp_status);
3599 update_fcr31(env, GETPC());
3600 return fst2;
3601 }
3602
helper_float_recip1_ps(CPUMIPSState * env,uint64_t fdt0)3603 uint64_t helper_float_recip1_ps(CPUMIPSState *env, uint64_t fdt0)
3604 {
3605 uint32_t fst2;
3606 uint32_t fsth2;
3607
3608 fst2 = float32_div(float32_one, fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
3609 fsth2 = float32_div(float32_one, fdt0 >> 32, &env->active_fpu.fp_status);
3610 update_fcr31(env, GETPC());
3611 return ((uint64_t)fsth2 << 32) | fst2;
3612 }
3613
helper_float_rsqrt1_d(CPUMIPSState * env,uint64_t fdt0)3614 uint64_t helper_float_rsqrt1_d(CPUMIPSState *env, uint64_t fdt0)
3615 {
3616 uint64_t fdt2;
3617
3618 fdt2 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
3619 fdt2 = float64_div(float64_one, fdt2, &env->active_fpu.fp_status);
3620 update_fcr31(env, GETPC());
3621 return fdt2;
3622 }
3623
helper_float_rsqrt1_s(CPUMIPSState * env,uint32_t fst0)3624 uint32_t helper_float_rsqrt1_s(CPUMIPSState *env, uint32_t fst0)
3625 {
3626 uint32_t fst2;
3627
3628 fst2 = float32_sqrt(fst0, &env->active_fpu.fp_status);
3629 fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
3630 update_fcr31(env, GETPC());
3631 return fst2;
3632 }
3633
helper_float_rsqrt1_ps(CPUMIPSState * env,uint64_t fdt0)3634 uint64_t helper_float_rsqrt1_ps(CPUMIPSState *env, uint64_t fdt0)
3635 {
3636 uint32_t fst2;
3637 uint32_t fsth2;
3638
3639 fst2 = float32_sqrt(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
3640 fsth2 = float32_sqrt(fdt0 >> 32, &env->active_fpu.fp_status);
3641 fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
3642 fsth2 = float32_div(float32_one, fsth2, &env->active_fpu.fp_status);
3643 update_fcr31(env, GETPC());
3644 return ((uint64_t)fsth2 << 32) | fst2;
3645 }
3646
3647 #define FLOAT_RINT(name, bits) \
3648 uint ## bits ## _t helper_float_ ## name (CPUMIPSState *env, \
3649 uint ## bits ## _t fs) \
3650 { \
3651 uint ## bits ## _t fdret; \
3652 \
3653 fdret = float ## bits ## _round_to_int(fs, &env->active_fpu.fp_status); \
3654 update_fcr31(env, GETPC()); \
3655 return fdret; \
3656 }
3657
3658 FLOAT_RINT(rint_s, 32)
3659 FLOAT_RINT(rint_d, 64)
3660 #undef FLOAT_RINT
3661
3662 #define FLOAT_CLASS_SIGNALING_NAN 0x001
3663 #define FLOAT_CLASS_QUIET_NAN 0x002
3664 #define FLOAT_CLASS_NEGATIVE_INFINITY 0x004
3665 #define FLOAT_CLASS_NEGATIVE_NORMAL 0x008
3666 #define FLOAT_CLASS_NEGATIVE_SUBNORMAL 0x010
3667 #define FLOAT_CLASS_NEGATIVE_ZERO 0x020
3668 #define FLOAT_CLASS_POSITIVE_INFINITY 0x040
3669 #define FLOAT_CLASS_POSITIVE_NORMAL 0x080
3670 #define FLOAT_CLASS_POSITIVE_SUBNORMAL 0x100
3671 #define FLOAT_CLASS_POSITIVE_ZERO 0x200
3672
3673 #define FLOAT_CLASS(name, bits) \
3674 uint ## bits ## _t float_ ## name (uint ## bits ## _t arg, \
3675 float_status *status) \
3676 { \
3677 if (float ## bits ## _is_signaling_nan(arg, status)) { \
3678 return FLOAT_CLASS_SIGNALING_NAN; \
3679 } else if (float ## bits ## _is_quiet_nan(arg, status)) { \
3680 return FLOAT_CLASS_QUIET_NAN; \
3681 } else if (float ## bits ## _is_neg(arg)) { \
3682 if (float ## bits ## _is_infinity(arg)) { \
3683 return FLOAT_CLASS_NEGATIVE_INFINITY; \
3684 } else if (float ## bits ## _is_zero(arg)) { \
3685 return FLOAT_CLASS_NEGATIVE_ZERO; \
3686 } else if (float ## bits ## _is_zero_or_denormal(arg)) { \
3687 return FLOAT_CLASS_NEGATIVE_SUBNORMAL; \
3688 } else { \
3689 return FLOAT_CLASS_NEGATIVE_NORMAL; \
3690 } \
3691 } else { \
3692 if (float ## bits ## _is_infinity(arg)) { \
3693 return FLOAT_CLASS_POSITIVE_INFINITY; \
3694 } else if (float ## bits ## _is_zero(arg)) { \
3695 return FLOAT_CLASS_POSITIVE_ZERO; \
3696 } else if (float ## bits ## _is_zero_or_denormal(arg)) { \
3697 return FLOAT_CLASS_POSITIVE_SUBNORMAL; \
3698 } else { \
3699 return FLOAT_CLASS_POSITIVE_NORMAL; \
3700 } \
3701 } \
3702 } \
3703 \
3704 uint ## bits ## _t helper_float_ ## name (CPUMIPSState *env, \
3705 uint ## bits ## _t arg) \
3706 { \
3707 return float_ ## name(arg, &env->active_fpu.fp_status); \
3708 }
3709
3710 FLOAT_CLASS(class_s, 32)
3711 FLOAT_CLASS(class_d, 64)
3712 #undef FLOAT_CLASS
3713
3714 /* binary operations */
3715 #define FLOAT_BINOP(name) \
3716 uint64_t helper_float_ ## name ## _d(CPUMIPSState *env, \
3717 uint64_t fdt0, uint64_t fdt1) \
3718 { \
3719 uint64_t dt2; \
3720 \
3721 dt2 = float64_ ## name (fdt0, fdt1, &env->active_fpu.fp_status); \
3722 update_fcr31(env, GETPC()); \
3723 return dt2; \
3724 } \
3725 \
3726 uint32_t helper_float_ ## name ## _s(CPUMIPSState *env, \
3727 uint32_t fst0, uint32_t fst1) \
3728 { \
3729 uint32_t wt2; \
3730 \
3731 wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status); \
3732 update_fcr31(env, GETPC()); \
3733 return wt2; \
3734 } \
3735 \
3736 uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env, \
3737 uint64_t fdt0, \
3738 uint64_t fdt1) \
3739 { \
3740 uint32_t fst0 = fdt0 & 0XFFFFFFFF; \
3741 uint32_t fsth0 = fdt0 >> 32; \
3742 uint32_t fst1 = fdt1 & 0XFFFFFFFF; \
3743 uint32_t fsth1 = fdt1 >> 32; \
3744 uint32_t wt2; \
3745 uint32_t wth2; \
3746 \
3747 wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status); \
3748 wth2 = float32_ ## name (fsth0, fsth1, &env->active_fpu.fp_status); \
3749 update_fcr31(env, GETPC()); \
3750 return ((uint64_t)wth2 << 32) | wt2; \
3751 }
3752
FLOAT_BINOP(add)3753 FLOAT_BINOP(add)
3754 FLOAT_BINOP(sub)
3755 FLOAT_BINOP(mul)
3756 FLOAT_BINOP(div)
3757 #undef FLOAT_BINOP
3758
3759 /* MIPS specific binary operations */
3760 uint64_t helper_float_recip2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3761 {
3762 fdt2 = float64_mul(fdt0, fdt2, &env->active_fpu.fp_status);
3763 fdt2 = float64_chs(float64_sub(fdt2, float64_one, &env->active_fpu.fp_status));
3764 update_fcr31(env, GETPC());
3765 return fdt2;
3766 }
3767
helper_float_recip2_s(CPUMIPSState * env,uint32_t fst0,uint32_t fst2)3768 uint32_t helper_float_recip2_s(CPUMIPSState *env, uint32_t fst0, uint32_t fst2)
3769 {
3770 fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3771 fst2 = float32_chs(float32_sub(fst2, float32_one, &env->active_fpu.fp_status));
3772 update_fcr31(env, GETPC());
3773 return fst2;
3774 }
3775
helper_float_recip2_ps(CPUMIPSState * env,uint64_t fdt0,uint64_t fdt2)3776 uint64_t helper_float_recip2_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3777 {
3778 uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3779 uint32_t fsth0 = fdt0 >> 32;
3780 uint32_t fst2 = fdt2 & 0XFFFFFFFF;
3781 uint32_t fsth2 = fdt2 >> 32;
3782
3783 fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3784 fsth2 = float32_mul(fsth0, fsth2, &env->active_fpu.fp_status);
3785 fst2 = float32_chs(float32_sub(fst2, float32_one, &env->active_fpu.fp_status));
3786 fsth2 = float32_chs(float32_sub(fsth2, float32_one, &env->active_fpu.fp_status));
3787 update_fcr31(env, GETPC());
3788 return ((uint64_t)fsth2 << 32) | fst2;
3789 }
3790
helper_float_rsqrt2_d(CPUMIPSState * env,uint64_t fdt0,uint64_t fdt2)3791 uint64_t helper_float_rsqrt2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3792 {
3793 fdt2 = float64_mul(fdt0, fdt2, &env->active_fpu.fp_status);
3794 fdt2 = float64_sub(fdt2, float64_one, &env->active_fpu.fp_status);
3795 fdt2 = float64_chs(float64_div(fdt2, FLOAT_TWO64, &env->active_fpu.fp_status));
3796 update_fcr31(env, GETPC());
3797 return fdt2;
3798 }
3799
helper_float_rsqrt2_s(CPUMIPSState * env,uint32_t fst0,uint32_t fst2)3800 uint32_t helper_float_rsqrt2_s(CPUMIPSState *env, uint32_t fst0, uint32_t fst2)
3801 {
3802 fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3803 fst2 = float32_sub(fst2, float32_one, &env->active_fpu.fp_status);
3804 fst2 = float32_chs(float32_div(fst2, FLOAT_TWO32, &env->active_fpu.fp_status));
3805 update_fcr31(env, GETPC());
3806 return fst2;
3807 }
3808
helper_float_rsqrt2_ps(CPUMIPSState * env,uint64_t fdt0,uint64_t fdt2)3809 uint64_t helper_float_rsqrt2_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3810 {
3811 uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3812 uint32_t fsth0 = fdt0 >> 32;
3813 uint32_t fst2 = fdt2 & 0XFFFFFFFF;
3814 uint32_t fsth2 = fdt2 >> 32;
3815
3816 fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3817 fsth2 = float32_mul(fsth0, fsth2, &env->active_fpu.fp_status);
3818 fst2 = float32_sub(fst2, float32_one, &env->active_fpu.fp_status);
3819 fsth2 = float32_sub(fsth2, float32_one, &env->active_fpu.fp_status);
3820 fst2 = float32_chs(float32_div(fst2, FLOAT_TWO32, &env->active_fpu.fp_status));
3821 fsth2 = float32_chs(float32_div(fsth2, FLOAT_TWO32, &env->active_fpu.fp_status));
3822 update_fcr31(env, GETPC());
3823 return ((uint64_t)fsth2 << 32) | fst2;
3824 }
3825
helper_float_addr_ps(CPUMIPSState * env,uint64_t fdt0,uint64_t fdt1)3826 uint64_t helper_float_addr_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt1)
3827 {
3828 uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3829 uint32_t fsth0 = fdt0 >> 32;
3830 uint32_t fst1 = fdt1 & 0XFFFFFFFF;
3831 uint32_t fsth1 = fdt1 >> 32;
3832 uint32_t fst2;
3833 uint32_t fsth2;
3834
3835 fst2 = float32_add (fst0, fsth0, &env->active_fpu.fp_status);
3836 fsth2 = float32_add (fst1, fsth1, &env->active_fpu.fp_status);
3837 update_fcr31(env, GETPC());
3838 return ((uint64_t)fsth2 << 32) | fst2;
3839 }
3840
helper_float_mulr_ps(CPUMIPSState * env,uint64_t fdt0,uint64_t fdt1)3841 uint64_t helper_float_mulr_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt1)
3842 {
3843 uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3844 uint32_t fsth0 = fdt0 >> 32;
3845 uint32_t fst1 = fdt1 & 0XFFFFFFFF;
3846 uint32_t fsth1 = fdt1 >> 32;
3847 uint32_t fst2;
3848 uint32_t fsth2;
3849
3850 fst2 = float32_mul (fst0, fsth0, &env->active_fpu.fp_status);
3851 fsth2 = float32_mul (fst1, fsth1, &env->active_fpu.fp_status);
3852 update_fcr31(env, GETPC());
3853 return ((uint64_t)fsth2 << 32) | fst2;
3854 }
3855
3856 #define FLOAT_MINMAX(name, bits, minmaxfunc) \
3857 uint ## bits ## _t helper_float_ ## name (CPUMIPSState *env, \
3858 uint ## bits ## _t fs, \
3859 uint ## bits ## _t ft) \
3860 { \
3861 uint ## bits ## _t fdret; \
3862 \
3863 fdret = float ## bits ## _ ## minmaxfunc(fs, ft, \
3864 &env->active_fpu.fp_status); \
3865 update_fcr31(env, GETPC()); \
3866 return fdret; \
3867 }
3868
3869 FLOAT_MINMAX(max_s, 32, maxnum)
3870 FLOAT_MINMAX(max_d, 64, maxnum)
3871 FLOAT_MINMAX(maxa_s, 32, maxnummag)
3872 FLOAT_MINMAX(maxa_d, 64, maxnummag)
3873
3874 FLOAT_MINMAX(min_s, 32, minnum)
3875 FLOAT_MINMAX(min_d, 64, minnum)
3876 FLOAT_MINMAX(mina_s, 32, minnummag)
3877 FLOAT_MINMAX(mina_d, 64, minnummag)
3878 #undef FLOAT_MINMAX
3879
3880 /* ternary operations */
3881 #define UNFUSED_FMA(prefix, a, b, c, flags) \
3882 { \
3883 a = prefix##_mul(a, b, &env->active_fpu.fp_status); \
3884 if ((flags) & float_muladd_negate_c) { \
3885 a = prefix##_sub(a, c, &env->active_fpu.fp_status); \
3886 } else { \
3887 a = prefix##_add(a, c, &env->active_fpu.fp_status); \
3888 } \
3889 if ((flags) & float_muladd_negate_result) { \
3890 a = prefix##_chs(a); \
3891 } \
3892 }
3893
3894 /* FMA based operations */
3895 #define FLOAT_FMA(name, type) \
3896 uint64_t helper_float_ ## name ## _d(CPUMIPSState *env, \
3897 uint64_t fdt0, uint64_t fdt1, \
3898 uint64_t fdt2) \
3899 { \
3900 UNFUSED_FMA(float64, fdt0, fdt1, fdt2, type); \
3901 update_fcr31(env, GETPC()); \
3902 return fdt0; \
3903 } \
3904 \
3905 uint32_t helper_float_ ## name ## _s(CPUMIPSState *env, \
3906 uint32_t fst0, uint32_t fst1, \
3907 uint32_t fst2) \
3908 { \
3909 UNFUSED_FMA(float32, fst0, fst1, fst2, type); \
3910 update_fcr31(env, GETPC()); \
3911 return fst0; \
3912 } \
3913 \
3914 uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env, \
3915 uint64_t fdt0, uint64_t fdt1, \
3916 uint64_t fdt2) \
3917 { \
3918 uint32_t fst0 = fdt0 & 0XFFFFFFFF; \
3919 uint32_t fsth0 = fdt0 >> 32; \
3920 uint32_t fst1 = fdt1 & 0XFFFFFFFF; \
3921 uint32_t fsth1 = fdt1 >> 32; \
3922 uint32_t fst2 = fdt2 & 0XFFFFFFFF; \
3923 uint32_t fsth2 = fdt2 >> 32; \
3924 \
3925 UNFUSED_FMA(float32, fst0, fst1, fst2, type); \
3926 UNFUSED_FMA(float32, fsth0, fsth1, fsth2, type); \
3927 update_fcr31(env, GETPC()); \
3928 return ((uint64_t)fsth0 << 32) | fst0; \
3929 }
3930 FLOAT_FMA(madd, 0)
FLOAT_FMA(msub,float_muladd_negate_c)3931 FLOAT_FMA(msub, float_muladd_negate_c)
3932 FLOAT_FMA(nmadd, float_muladd_negate_result)
3933 FLOAT_FMA(nmsub, float_muladd_negate_result | float_muladd_negate_c)
3934 #undef FLOAT_FMA
3935
3936 #define FLOAT_FMADDSUB(name, bits, muladd_arg) \
3937 uint ## bits ## _t helper_float_ ## name (CPUMIPSState *env, \
3938 uint ## bits ## _t fs, \
3939 uint ## bits ## _t ft, \
3940 uint ## bits ## _t fd) \
3941 { \
3942 uint ## bits ## _t fdret; \
3943 \
3944 fdret = float ## bits ## _muladd(fs, ft, fd, muladd_arg, \
3945 &env->active_fpu.fp_status); \
3946 update_fcr31(env, GETPC()); \
3947 return fdret; \
3948 }
3949
3950 FLOAT_FMADDSUB(maddf_s, 32, 0)
3951 FLOAT_FMADDSUB(maddf_d, 64, 0)
3952 FLOAT_FMADDSUB(msubf_s, 32, float_muladd_negate_product)
3953 FLOAT_FMADDSUB(msubf_d, 64, float_muladd_negate_product)
3954 #undef FLOAT_FMADDSUB
3955
3956 /* compare operations */
3957 #define FOP_COND_D(op, cond) \
3958 void helper_cmp_d_ ## op(CPUMIPSState *env, uint64_t fdt0, \
3959 uint64_t fdt1, int cc) \
3960 { \
3961 int c; \
3962 c = cond; \
3963 update_fcr31(env, GETPC()); \
3964 if (c) \
3965 SET_FP_COND(cc, env->active_fpu); \
3966 else \
3967 CLEAR_FP_COND(cc, env->active_fpu); \
3968 } \
3969 void helper_cmpabs_d_ ## op(CPUMIPSState *env, uint64_t fdt0, \
3970 uint64_t fdt1, int cc) \
3971 { \
3972 int c; \
3973 fdt0 = float64_abs(fdt0); \
3974 fdt1 = float64_abs(fdt1); \
3975 c = cond; \
3976 update_fcr31(env, GETPC()); \
3977 if (c) \
3978 SET_FP_COND(cc, env->active_fpu); \
3979 else \
3980 CLEAR_FP_COND(cc, env->active_fpu); \
3981 }
3982
3983 /* NOTE: the comma operator will make "cond" to eval to false,
3984 * but float64_unordered_quiet() is still called. */
3985 FOP_COND_D(f, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status), 0))
3986 FOP_COND_D(un, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status))
3987 FOP_COND_D(eq, float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3988 FOP_COND_D(ueq, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status) || float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3989 FOP_COND_D(olt, float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3990 FOP_COND_D(ult, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status) || float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3991 FOP_COND_D(ole, float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3992 FOP_COND_D(ule, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status) || float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3993 /* NOTE: the comma operator will make "cond" to eval to false,
3994 * but float64_unordered() is still called. */
3995 FOP_COND_D(sf, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status), 0))
3996 FOP_COND_D(ngle,float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status))
3997 FOP_COND_D(seq, float64_eq(fdt0, fdt1, &env->active_fpu.fp_status))
3998 FOP_COND_D(ngl, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status) || float64_eq(fdt0, fdt1, &env->active_fpu.fp_status))
3999 FOP_COND_D(lt, float64_lt(fdt0, fdt1, &env->active_fpu.fp_status))
4000 FOP_COND_D(nge, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status) || float64_lt(fdt0, fdt1, &env->active_fpu.fp_status))
4001 FOP_COND_D(le, float64_le(fdt0, fdt1, &env->active_fpu.fp_status))
4002 FOP_COND_D(ngt, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status) || float64_le(fdt0, fdt1, &env->active_fpu.fp_status))
4003
4004 #define FOP_COND_S(op, cond) \
4005 void helper_cmp_s_ ## op(CPUMIPSState *env, uint32_t fst0, \
4006 uint32_t fst1, int cc) \
4007 { \
4008 int c; \
4009 c = cond; \
4010 update_fcr31(env, GETPC()); \
4011 if (c) \
4012 SET_FP_COND(cc, env->active_fpu); \
4013 else \
4014 CLEAR_FP_COND(cc, env->active_fpu); \
4015 } \
4016 void helper_cmpabs_s_ ## op(CPUMIPSState *env, uint32_t fst0, \
4017 uint32_t fst1, int cc) \
4018 { \
4019 int c; \
4020 fst0 = float32_abs(fst0); \
4021 fst1 = float32_abs(fst1); \
4022 c = cond; \
4023 update_fcr31(env, GETPC()); \
4024 if (c) \
4025 SET_FP_COND(cc, env->active_fpu); \
4026 else \
4027 CLEAR_FP_COND(cc, env->active_fpu); \
4028 }
4029
4030 /* NOTE: the comma operator will make "cond" to eval to false,
4031 * but float32_unordered_quiet() is still called. */
4032 FOP_COND_S(f, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0))
4033 FOP_COND_S(un, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status))
4034 FOP_COND_S(eq, float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status))
4035 FOP_COND_S(ueq, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status) || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status))
4036 FOP_COND_S(olt, float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status))
4037 FOP_COND_S(ult, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status) || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status))
4038 FOP_COND_S(ole, float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status))
4039 FOP_COND_S(ule, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status) || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status))
4040 /* NOTE: the comma operator will make "cond" to eval to false,
4041 * but float32_unordered() is still called. */
4042 FOP_COND_S(sf, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0))
4043 FOP_COND_S(ngle,float32_unordered(fst1, fst0, &env->active_fpu.fp_status))
4044 FOP_COND_S(seq, float32_eq(fst0, fst1, &env->active_fpu.fp_status))
4045 FOP_COND_S(ngl, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || float32_eq(fst0, fst1, &env->active_fpu.fp_status))
4046 FOP_COND_S(lt, float32_lt(fst0, fst1, &env->active_fpu.fp_status))
4047 FOP_COND_S(nge, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || float32_lt(fst0, fst1, &env->active_fpu.fp_status))
4048 FOP_COND_S(le, float32_le(fst0, fst1, &env->active_fpu.fp_status))
4049 FOP_COND_S(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || float32_le(fst0, fst1, &env->active_fpu.fp_status))
4050
4051 #define FOP_COND_PS(op, condl, condh) \
4052 void helper_cmp_ps_ ## op(CPUMIPSState *env, uint64_t fdt0, \
4053 uint64_t fdt1, int cc) \
4054 { \
4055 uint32_t fst0, fsth0, fst1, fsth1; \
4056 int ch, cl; \
4057 fst0 = fdt0 & 0XFFFFFFFF; \
4058 fsth0 = fdt0 >> 32; \
4059 fst1 = fdt1 & 0XFFFFFFFF; \
4060 fsth1 = fdt1 >> 32; \
4061 cl = condl; \
4062 ch = condh; \
4063 update_fcr31(env, GETPC()); \
4064 if (cl) \
4065 SET_FP_COND(cc, env->active_fpu); \
4066 else \
4067 CLEAR_FP_COND(cc, env->active_fpu); \
4068 if (ch) \
4069 SET_FP_COND(cc + 1, env->active_fpu); \
4070 else \
4071 CLEAR_FP_COND(cc + 1, env->active_fpu); \
4072 } \
4073 void helper_cmpabs_ps_ ## op(CPUMIPSState *env, uint64_t fdt0, \
4074 uint64_t fdt1, int cc) \
4075 { \
4076 uint32_t fst0, fsth0, fst1, fsth1; \
4077 int ch, cl; \
4078 fst0 = float32_abs(fdt0 & 0XFFFFFFFF); \
4079 fsth0 = float32_abs(fdt0 >> 32); \
4080 fst1 = float32_abs(fdt1 & 0XFFFFFFFF); \
4081 fsth1 = float32_abs(fdt1 >> 32); \
4082 cl = condl; \
4083 ch = condh; \
4084 update_fcr31(env, GETPC()); \
4085 if (cl) \
4086 SET_FP_COND(cc, env->active_fpu); \
4087 else \
4088 CLEAR_FP_COND(cc, env->active_fpu); \
4089 if (ch) \
4090 SET_FP_COND(cc + 1, env->active_fpu); \
4091 else \
4092 CLEAR_FP_COND(cc + 1, env->active_fpu); \
4093 }
4094
4095 /* NOTE: the comma operator will make "cond" to eval to false,
4096 * but float32_unordered_quiet() is still called. */
4097 FOP_COND_PS(f, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0),
4098 (float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status), 0))
4099 FOP_COND_PS(un, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status),
4100 float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status))
4101 FOP_COND_PS(eq, float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status),
4102 float32_eq_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
4103 FOP_COND_PS(ueq, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status) || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status),
4104 float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status) || float32_eq_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
4105 FOP_COND_PS(olt, float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status),
4106 float32_lt_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
4107 FOP_COND_PS(ult, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status) || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status),
4108 float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status) || float32_lt_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
4109 FOP_COND_PS(ole, float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status),
4110 float32_le_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
4111 FOP_COND_PS(ule, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status) || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status),
4112 float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status) || float32_le_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
4113 /* NOTE: the comma operator will make "cond" to eval to false,
4114 * but float32_unordered() is still called. */
4115 FOP_COND_PS(sf, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0),
4116 (float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status), 0))
4117 FOP_COND_PS(ngle,float32_unordered(fst1, fst0, &env->active_fpu.fp_status),
4118 float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status))
4119 FOP_COND_PS(seq, float32_eq(fst0, fst1, &env->active_fpu.fp_status),
4120 float32_eq(fsth0, fsth1, &env->active_fpu.fp_status))
4121 FOP_COND_PS(ngl, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || float32_eq(fst0, fst1, &env->active_fpu.fp_status),
4122 float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status) || float32_eq(fsth0, fsth1, &env->active_fpu.fp_status))
4123 FOP_COND_PS(lt, float32_lt(fst0, fst1, &env->active_fpu.fp_status),
4124 float32_lt(fsth0, fsth1, &env->active_fpu.fp_status))
4125 FOP_COND_PS(nge, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || float32_lt(fst0, fst1, &env->active_fpu.fp_status),
4126 float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status) || float32_lt(fsth0, fsth1, &env->active_fpu.fp_status))
4127 FOP_COND_PS(le, float32_le(fst0, fst1, &env->active_fpu.fp_status),
4128 float32_le(fsth0, fsth1, &env->active_fpu.fp_status))
4129 FOP_COND_PS(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || float32_le(fst0, fst1, &env->active_fpu.fp_status),
4130 float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status) || float32_le(fsth0, fsth1, &env->active_fpu.fp_status))
4131
4132 /* R6 compare operations */
4133 #define FOP_CONDN_D(op, cond) \
4134 uint64_t helper_r6_cmp_d_ ## op(CPUMIPSState * env, uint64_t fdt0, \
4135 uint64_t fdt1) \
4136 { \
4137 uint64_t c; \
4138 c = cond; \
4139 update_fcr31(env, GETPC()); \
4140 if (c) { \
4141 return -1; \
4142 } else { \
4143 return 0; \
4144 } \
4145 }
4146
4147 /* NOTE: the comma operator will make "cond" to eval to false,
4148 * but float64_unordered_quiet() is still called. */
4149 FOP_CONDN_D(af, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status), 0))
4150 FOP_CONDN_D(un, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)))
4151 FOP_CONDN_D(eq, (float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4152 FOP_CONDN_D(ueq, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4153 || float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4154 FOP_CONDN_D(lt, (float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4155 FOP_CONDN_D(ult, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4156 || float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4157 FOP_CONDN_D(le, (float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4158 FOP_CONDN_D(ule, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4159 || float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4160 /* NOTE: the comma operator will make "cond" to eval to false,
4161 * but float64_unordered() is still called. */
4162 FOP_CONDN_D(saf, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status), 0))
4163 FOP_CONDN_D(sun, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)))
4164 FOP_CONDN_D(seq, (float64_eq(fdt0, fdt1, &env->active_fpu.fp_status)))
4165 FOP_CONDN_D(sueq, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)
4166 || float64_eq(fdt0, fdt1, &env->active_fpu.fp_status)))
4167 FOP_CONDN_D(slt, (float64_lt(fdt0, fdt1, &env->active_fpu.fp_status)))
4168 FOP_CONDN_D(sult, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)
4169 || float64_lt(fdt0, fdt1, &env->active_fpu.fp_status)))
4170 FOP_CONDN_D(sle, (float64_le(fdt0, fdt1, &env->active_fpu.fp_status)))
4171 FOP_CONDN_D(sule, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)
4172 || float64_le(fdt0, fdt1, &env->active_fpu.fp_status)))
4173 FOP_CONDN_D(or, (float64_le_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4174 || float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4175 FOP_CONDN_D(une, (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4176 || float64_lt_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4177 || float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4178 FOP_CONDN_D(ne, (float64_lt_quiet(fdt1, fdt0, &env->active_fpu.fp_status)
4179 || float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status)))
4180 FOP_CONDN_D(sor, (float64_le(fdt1, fdt0, &env->active_fpu.fp_status)
4181 || float64_le(fdt0, fdt1, &env->active_fpu.fp_status)))
4182 FOP_CONDN_D(sune, (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)
4183 || float64_lt(fdt1, fdt0, &env->active_fpu.fp_status)
4184 || float64_lt(fdt0, fdt1, &env->active_fpu.fp_status)))
4185 FOP_CONDN_D(sne, (float64_lt(fdt1, fdt0, &env->active_fpu.fp_status)
4186 || float64_lt(fdt0, fdt1, &env->active_fpu.fp_status)))
4187
4188 #define FOP_CONDN_S(op, cond) \
4189 uint32_t helper_r6_cmp_s_ ## op(CPUMIPSState * env, uint32_t fst0, \
4190 uint32_t fst1) \
4191 { \
4192 uint64_t c; \
4193 c = cond; \
4194 update_fcr31(env, GETPC()); \
4195 if (c) { \
4196 return -1; \
4197 } else { \
4198 return 0; \
4199 } \
4200 }
4201
4202 /* NOTE: the comma operator will make "cond" to eval to false,
4203 * but float32_unordered_quiet() is still called. */
4204 FOP_CONDN_S(af, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0))
4205 FOP_CONDN_S(un, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)))
4206 FOP_CONDN_S(eq, (float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4207 FOP_CONDN_S(ueq, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)
4208 || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4209 FOP_CONDN_S(lt, (float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4210 FOP_CONDN_S(ult, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)
4211 || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4212 FOP_CONDN_S(le, (float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4213 FOP_CONDN_S(ule, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)
4214 || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4215 /* NOTE: the comma operator will make "cond" to eval to false,
4216 * but float32_unordered() is still called. */
4217 FOP_CONDN_S(saf, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0))
4218 FOP_CONDN_S(sun, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status)))
4219 FOP_CONDN_S(seq, (float32_eq(fst0, fst1, &env->active_fpu.fp_status)))
4220 FOP_CONDN_S(sueq, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status)
4221 || float32_eq(fst0, fst1, &env->active_fpu.fp_status)))
4222 FOP_CONDN_S(slt, (float32_lt(fst0, fst1, &env->active_fpu.fp_status)))
4223 FOP_CONDN_S(sult, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status)
4224 || float32_lt(fst0, fst1, &env->active_fpu.fp_status)))
4225 FOP_CONDN_S(sle, (float32_le(fst0, fst1, &env->active_fpu.fp_status)))
4226 FOP_CONDN_S(sule, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status)
4227 || float32_le(fst0, fst1, &env->active_fpu.fp_status)))
4228 FOP_CONDN_S(or, (float32_le_quiet(fst1, fst0, &env->active_fpu.fp_status)
4229 || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4230 FOP_CONDN_S(une, (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)
4231 || float32_lt_quiet(fst1, fst0, &env->active_fpu.fp_status)
4232 || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4233 FOP_CONDN_S(ne, (float32_lt_quiet(fst1, fst0, &env->active_fpu.fp_status)
4234 || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status)))
4235 FOP_CONDN_S(sor, (float32_le(fst1, fst0, &env->active_fpu.fp_status)
4236 || float32_le(fst0, fst1, &env->active_fpu.fp_status)))
4237 FOP_CONDN_S(sune, (float32_unordered(fst1, fst0, &env->active_fpu.fp_status)
4238 || float32_lt(fst1, fst0, &env->active_fpu.fp_status)
4239 || float32_lt(fst0, fst1, &env->active_fpu.fp_status)))
4240 FOP_CONDN_S(sne, (float32_lt(fst1, fst0, &env->active_fpu.fp_status)
4241 || float32_lt(fst0, fst1, &env->active_fpu.fp_status)))
4242
4243 /* MSA */
4244 /* Data format min and max values */
4245 #define DF_BITS(df) (1 << ((df) + 3))
4246
4247 /* Element-by-element access macros */
4248 #define DF_ELEMENTS(df) (MSA_WRLEN / DF_BITS(df))
4249
4250 #if !defined(CONFIG_USER_ONLY)
4251 #define MEMOP_IDX(DF) \
4252 TCGMemOpIdx oi = make_memop_idx(MO_TE | DF | MO_UNALN, \
4253 cpu_mmu_index(env, false));
4254 #else
4255 #define MEMOP_IDX(DF)
4256 #endif
4257
4258 #define MSA_LD_DF(DF, TYPE, LD_INSN, ...) \
4259 void helper_msa_ld_ ## TYPE(CPUMIPSState *env, uint32_t wd, \
4260 target_ulong addr) \
4261 { \
4262 wr_t *pwd = &(env->active_fpu.fpr[wd].wr); \
4263 wr_t wx; \
4264 int i; \
4265 MEMOP_IDX(DF) \
4266 for (i = 0; i < DF_ELEMENTS(DF); i++) { \
4267 wx.TYPE[i] = LD_INSN(env, addr + (i << DF), ##__VA_ARGS__); \
4268 } \
4269 memcpy(pwd, &wx, sizeof(wr_t)); \
4270 }
4271
4272 #if !defined(CONFIG_USER_ONLY)
4273 MSA_LD_DF(DF_BYTE, b, helper_ret_ldub_mmu, oi, GETPC())
4274 MSA_LD_DF(DF_HALF, h, helper_ret_lduw_mmu, oi, GETPC())
4275 MSA_LD_DF(DF_WORD, w, helper_ret_ldul_mmu, oi, GETPC())
4276 MSA_LD_DF(DF_DOUBLE, d, helper_ret_ldq_mmu, oi, GETPC())
4277 #else
4278 MSA_LD_DF(DF_BYTE, b, cpu_ldub_data)
4279 MSA_LD_DF(DF_HALF, h, cpu_lduw_data)
4280 MSA_LD_DF(DF_WORD, w, cpu_ldl_data)
4281 MSA_LD_DF(DF_DOUBLE, d, cpu_ldq_data)
4282 #endif
4283
4284 #define MSA_PAGESPAN(x) \
4285 ((((x) & ~TARGET_PAGE_MASK) + MSA_WRLEN/8 - 1) >= TARGET_PAGE_SIZE)
4286
4287 static inline void ensure_writable_pages(CPUMIPSState *env,
4288 target_ulong addr,
4289 int mmu_idx,
4290 uintptr_t retaddr)
4291 {
4292 #if !defined(CONFIG_USER_ONLY)
4293 target_ulong page_addr;
4294 if (unlikely(MSA_PAGESPAN(addr))) {
4295 /* first page */
4296 probe_write(env, addr, 0, mmu_idx, retaddr);
4297 /* second page */
4298 page_addr = (addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
4299 probe_write(env, page_addr, 0, mmu_idx, retaddr);
4300 }
4301 #endif
4302 }
4303
4304 #define MSA_ST_DF(DF, TYPE, ST_INSN, ...) \
4305 void helper_msa_st_ ## TYPE(CPUMIPSState *env, uint32_t wd, \
4306 target_ulong addr) \
4307 { \
4308 wr_t *pwd = &(env->active_fpu.fpr[wd].wr); \
4309 int mmu_idx = cpu_mmu_index(env, false); \
4310 int i; \
4311 MEMOP_IDX(DF) \
4312 ensure_writable_pages(env, addr, mmu_idx, GETPC()); \
4313 for (i = 0; i < DF_ELEMENTS(DF); i++) { \
4314 ST_INSN(env, addr + (i << DF), pwd->TYPE[i], ##__VA_ARGS__); \
4315 } \
4316 }
4317
4318 #if !defined(CONFIG_USER_ONLY)
MSA_ST_DF(DF_BYTE,b,helper_ret_stb_mmu,oi,GETPC ())4319 MSA_ST_DF(DF_BYTE, b, helper_ret_stb_mmu, oi, GETPC())
4320 MSA_ST_DF(DF_HALF, h, helper_ret_stw_mmu, oi, GETPC())
4321 MSA_ST_DF(DF_WORD, w, helper_ret_stl_mmu, oi, GETPC())
4322 MSA_ST_DF(DF_DOUBLE, d, helper_ret_stq_mmu, oi, GETPC())
4323 #else
4324 MSA_ST_DF(DF_BYTE, b, cpu_stb_data)
4325 MSA_ST_DF(DF_HALF, h, cpu_stw_data)
4326 MSA_ST_DF(DF_WORD, w, cpu_stl_data)
4327 MSA_ST_DF(DF_DOUBLE, d, cpu_stq_data)
4328 #endif
4329
4330 void helper_cache(CPUMIPSState *env, target_ulong addr, uint32_t op)
4331 {
4332 #ifndef CONFIG_USER_ONLY
4333 target_ulong index = addr & 0x1fffffff;
4334 if (op == 9) {
4335 /* Index Store Tag */
4336 memory_region_dispatch_write(env->itc_tag, index, env->CP0_TagLo,
4337 8, MEMTXATTRS_UNSPECIFIED);
4338 } else if (op == 5) {
4339 /* Index Load Tag */
4340 memory_region_dispatch_read(env->itc_tag, index, &env->CP0_TagLo,
4341 8, MEMTXATTRS_UNSPECIFIED);
4342 }
4343 #endif
4344 }
4345