target-mips/op_helper.c

   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 <stdlib.h>
  20 #include "cpu.h"
  21 #include "qemu/host-utils.h"
  22
  23 #include "helper.h"
  24
  25 #if !defined(CONFIG_USER_ONLY)
  26 #include "exec/softmmu_exec.h"
  27 #endif /* !defined(CONFIG_USER_ONLY) */
  28
  29 #ifndef CONFIG_USER_ONLY
  30 static inline void cpu_mips_tlb_flush (CPUMIPSState *env, int flush_global);
  31 #endif
  32
  33 /*****************************************************************************/
  34 /* Exceptions processing helpers */
  35
  36 static inline void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env,
  37                                                         uint32_t exception,
  38                                                         int error_code,
  39                                                         uintptr_t pc)
  40 {
  41     CPUState *cs = CPU(mips_env_get_cpu(env));
  42
  43     if (exception < EXCP_SC) {
  44         qemu_log("%s: %d %d\n", __func__, exception, error_code);
  45     }
  46     cs->exception_index = exception;
  47     env->error_code = error_code;
  48
  49     if (pc) {
  50         /* now we have a real cpu fault */
  51         cpu_restore_state(cs, pc);
  52     }
  53
  54     cpu_loop_exit(cs);
  55 }
  56
  57 static inline void QEMU_NORETURN do_raise_exception(CPUMIPSState *env,
  58                                                     uint32_t exception,
  59                                                     uintptr_t pc)
  60 {
  61     do_raise_exception_err(env, exception, 0, pc);
  62 }
  63
  64 void helper_raise_exception_err(CPUMIPSState *env, uint32_t exception,
  65                                 int error_code)
  66 {
  67     do_raise_exception_err(env, exception, error_code, 0);
  68 }
  69
  70 void helper_raise_exception(CPUMIPSState *env, uint32_t exception)
  71 {
  72     do_raise_exception(env, exception, 0);
  73 }
  74
  75 #if defined(CONFIG_USER_ONLY)
  76 #define HELPER_LD(name, insn, type)                                     \
  77 static inline type do_##name(CPUMIPSState *env, target_ulong addr,      \
  78                              int mem_idx)                               \
  79 {                                                                       \
  80     return (type) insn##_raw(addr);                                     \
  81 }
  82 #else
  83 #define HELPER_LD(name, insn, type)                                     \
  84 static inline type do_##name(CPUMIPSState *env, target_ulong addr,      \
  85                              int mem_idx)                               \
  86 {                                                                       \
  87     switch (mem_idx)                                                    \
  88     {                                                                   \
  89     case 0: return (type) cpu_##insn##_kernel(env, addr); break;        \
  90     case 1: return (type) cpu_##insn##_super(env, addr); break;         \
  91     default:                                                            \
  92     case 2: return (type) cpu_##insn##_user(env, addr); break;          \
  93     }                                                                   \
  94 }
  95 #endif
  96 HELPER_LD(lbu, ldub, uint8_t)
  97 HELPER_LD(lw, ldl, int32_t)
  98 #ifdef TARGET_MIPS64
  99 HELPER_LD(ld, ldq, int64_t)
 100 #endif
 101 #undef HELPER_LD
 102
 103 #if defined(CONFIG_USER_ONLY)
 104 #define HELPER_ST(name, insn, type)                                     \
 105 static inline void do_##name(CPUMIPSState *env, target_ulong addr,      \
 106                              type val, int mem_idx)                     \
 107 {                                                                       \
 108     insn##_raw(addr, val);                                              \
 109 }
 110 #else
 111 #define HELPER_ST(name, insn, type)                                     \
 112 static inline void do_##name(CPUMIPSState *env, target_ulong addr,      \
 113                              type val, int mem_idx)                     \
 114 {                                                                       \
 115     switch (mem_idx)                                                    \
 116     {                                                                   \
 117     case 0: cpu_##insn##_kernel(env, addr, val); break;                 \
 118     case 1: cpu_##insn##_super(env, addr, val); break;                  \
 119     default:                                                            \
 120     case 2: cpu_##insn##_user(env, addr, val); break;                   \
 121     }                                                                   \
 122 }
 123 #endif
 124 HELPER_ST(sb, stb, uint8_t)
 125 HELPER_ST(sw, stl, uint32_t)
 126 #ifdef TARGET_MIPS64
 127 HELPER_ST(sd, stq, uint64_t)
 128 #endif
 129 #undef HELPER_ST
 130
 131 target_ulong helper_clo (target_ulong arg1)
 132 {
 133     return clo32(arg1);
 134 }
 135
 136 target_ulong helper_clz (target_ulong arg1)
 137 {
 138     return clz32(arg1);
 139 }
 140
 141 #if defined(TARGET_MIPS64)
 142 target_ulong helper_dclo (target_ulong arg1)
 143 {
 144     return clo64(arg1);
 145 }
 146
 147 target_ulong helper_dclz (target_ulong arg1)
 148 {
 149     return clz64(arg1);
 150 }
 151 #endif /* TARGET_MIPS64 */
 152
 153 /* 64 bits arithmetic for 32 bits hosts */
 154 static inline uint64_t get_HILO(CPUMIPSState *env)
 155 {
 156     return ((uint64_t)(env->active_tc.HI[0]) << 32) | (uint32_t)env->active_tc.LO[0];
 157 }
 158
 159 static inline target_ulong set_HIT0_LO(CPUMIPSState *env, uint64_t HILO)
 160 {
 161     target_ulong tmp;
 162     env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
 163     tmp = env->active_tc.HI[0] = (int32_t)(HILO >> 32);
 164     return tmp;
 165 }
 166
 167 static inline target_ulong set_HI_LOT0(CPUMIPSState *env, uint64_t HILO)
 168 {
 169     target_ulong tmp = env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
 170     env->active_tc.HI[0] = (int32_t)(HILO >> 32);
 171     return tmp;
 172 }
 173
 174 /* Multiplication variants of the vr54xx. */
 175 target_ulong helper_muls(CPUMIPSState *env, target_ulong arg1,
 176                          target_ulong arg2)
 177 {
 178     return set_HI_LOT0(env, 0 - ((int64_t)(int32_t)arg1 *
 179                                  (int64_t)(int32_t)arg2));
 180 }
 181
 182 target_ulong helper_mulsu(CPUMIPSState *env, target_ulong arg1,
 183                           target_ulong arg2)
 184 {
 185     return set_HI_LOT0(env, 0 - (uint64_t)(uint32_t)arg1 *
 186                        (uint64_t)(uint32_t)arg2);
 187 }
 188
 189 target_ulong helper_macc(CPUMIPSState *env, target_ulong arg1,
 190                          target_ulong arg2)
 191 {
 192     return set_HI_LOT0(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
 193                        (int64_t)(int32_t)arg2);
 194 }
 195
 196 target_ulong helper_macchi(CPUMIPSState *env, target_ulong arg1,
 197                            target_ulong arg2)
 198 {
 199     return set_HIT0_LO(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
 200                        (int64_t)(int32_t)arg2);
 201 }
 202
 203 target_ulong helper_maccu(CPUMIPSState *env, target_ulong arg1,
 204                           target_ulong arg2)
 205 {
 206     return set_HI_LOT0(env, (uint64_t)get_HILO(env) +
 207                        (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
 208 }
 209
 210 target_ulong helper_macchiu(CPUMIPSState *env, target_ulong arg1,
 211                             target_ulong arg2)
 212 {
 213     return set_HIT0_LO(env, (uint64_t)get_HILO(env) +
 214                        (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
 215 }
 216
 217 target_ulong helper_msac(CPUMIPSState *env, target_ulong arg1,
 218                          target_ulong arg2)
 219 {
 220     return set_HI_LOT0(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
 221                        (int64_t)(int32_t)arg2);
 222 }
 223
 224 target_ulong helper_msachi(CPUMIPSState *env, target_ulong arg1,
 225                            target_ulong arg2)
 226 {
 227     return set_HIT0_LO(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
 228                        (int64_t)(int32_t)arg2);
 229 }
 230
 231 target_ulong helper_msacu(CPUMIPSState *env, target_ulong arg1,
 232                           target_ulong arg2)
 233 {
 234     return set_HI_LOT0(env, (uint64_t)get_HILO(env) -
 235                        (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
 236 }
 237
 238 target_ulong helper_msachiu(CPUMIPSState *env, target_ulong arg1,
 239                             target_ulong arg2)
 240 {
 241     return set_HIT0_LO(env, (uint64_t)get_HILO(env) -
 242                        (uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
 243 }
 244
 245 target_ulong helper_mulhi(CPUMIPSState *env, target_ulong arg1,
 246                           target_ulong arg2)
 247 {
 248     return set_HIT0_LO(env, (int64_t)(int32_t)arg1 * (int64_t)(int32_t)arg2);
 249 }
 250
 251 target_ulong helper_mulhiu(CPUMIPSState *env, target_ulong arg1,
 252                            target_ulong arg2)
 253 {
 254     return set_HIT0_LO(env, (uint64_t)(uint32_t)arg1 *
 255                        (uint64_t)(uint32_t)arg2);
 256 }
 257
 258 target_ulong helper_mulshi(CPUMIPSState *env, target_ulong arg1,
 259                            target_ulong arg2)
 260 {
 261     return set_HIT0_LO(env, 0 - (int64_t)(int32_t)arg1 *
 262                        (int64_t)(int32_t)arg2);
 263 }
 264
 265 target_ulong helper_mulshiu(CPUMIPSState *env, target_ulong arg1,
 266                             target_ulong arg2)
 267 {
 268     return set_HIT0_LO(env, 0 - (uint64_t)(uint32_t)arg1 *
 269                        (uint64_t)(uint32_t)arg2);
 270 }
 271
 272 #ifndef CONFIG_USER_ONLY
 273
 274 static inline hwaddr do_translate_address(CPUMIPSState *env,
 275                                                       target_ulong address,
 276                                                       int rw)
 277 {
 278     hwaddr lladdr;
 279
 280     lladdr = cpu_mips_translate_address(env, address, rw);
 281
 282     if (lladdr == -1LL) {
 283         cpu_loop_exit(CPU(mips_env_get_cpu(env)));
 284     } else {
 285         return lladdr;
 286     }
 287 }
 288
 289 #define HELPER_LD_ATOMIC(name, insn)                                          \
 290 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg, int mem_idx)  \
 291 {                                                                             \
 292     env->lladdr = do_translate_address(env, arg, 0);                          \
 293     env->llval = do_##insn(env, arg, mem_idx);                                \
 294     return env->llval;                                                        \
 295 }
 296 HELPER_LD_ATOMIC(ll, lw)
 297 #ifdef TARGET_MIPS64
 298 HELPER_LD_ATOMIC(lld, ld)
 299 #endif
 300 #undef HELPER_LD_ATOMIC
 301
 302 #define HELPER_ST_ATOMIC(name, ld_insn, st_insn, almask)                      \
 303 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg1,              \
 304                            target_ulong arg2, int mem_idx)                    \
 305 {                                                                             \
 306     target_long tmp;                                                          \
 307                                                                               \
 308     if (arg2 & almask) {                                                      \
 309         env->CP0_BadVAddr = arg2;                                             \
 310         helper_raise_exception(env, EXCP_AdES);                               \
 311     }                                                                         \
 312     if (do_translate_address(env, arg2, 1) == env->lladdr) {                  \
 313         tmp = do_##ld_insn(env, arg2, mem_idx);                               \
 314         if (tmp == env->llval) {                                              \
 315             do_##st_insn(env, arg2, arg1, mem_idx);                           \
 316             return 1;                                                         \
 317         }                                                                     \
 318     }                                                                         \
 319     return 0;                                                                 \
 320 }
 321 HELPER_ST_ATOMIC(sc, lw, sw, 0x3)
 322 #ifdef TARGET_MIPS64
 323 HELPER_ST_ATOMIC(scd, ld, sd, 0x7)
 324 #endif
 325 #undef HELPER_ST_ATOMIC
 326 #endif
 327
 328 #ifdef TARGET_WORDS_BIGENDIAN
 329 #define GET_LMASK(v) ((v) & 3)
 330 #define GET_OFFSET(addr, offset) (addr + (offset))
 331 #else
 332 #define GET_LMASK(v) (((v) & 3) ^ 3)
 333 #define GET_OFFSET(addr, offset) (addr - (offset))
 334 #endif
 335
 336 void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 337                 int mem_idx)
 338 {
 339     do_sb(env, arg2, (uint8_t)(arg1 >> 24), mem_idx);
 340
 341     if (GET_LMASK(arg2) <= 2)
 342         do_sb(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 16), mem_idx);
 343
 344     if (GET_LMASK(arg2) <= 1)
 345         do_sb(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 8), mem_idx);
 346
 347     if (GET_LMASK(arg2) == 0)
 348         do_sb(env, GET_OFFSET(arg2, 3), (uint8_t)arg1, mem_idx);
 349 }
 350
 351 void helper_swr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 352                 int mem_idx)
 353 {
 354     do_sb(env, arg2, (uint8_t)arg1, mem_idx);
 355
 356     if (GET_LMASK(arg2) >= 1)
 357         do_sb(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8), mem_idx);
 358
 359     if (GET_LMASK(arg2) >= 2)
 360         do_sb(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16), mem_idx);
 361
 362     if (GET_LMASK(arg2) == 3)
 363         do_sb(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24), mem_idx);
 364 }
 365
 366 #if defined(TARGET_MIPS64)
 367 /* "half" load and stores.  We must do the memory access inline,
 368    or fault handling won't work.  */
 369
 370 #ifdef TARGET_WORDS_BIGENDIAN
 371 #define GET_LMASK64(v) ((v) & 7)
 372 #else
 373 #define GET_LMASK64(v) (((v) & 7) ^ 7)
 374 #endif
 375
 376 void helper_sdl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 377                 int mem_idx)
 378 {
 379     do_sb(env, arg2, (uint8_t)(arg1 >> 56), mem_idx);
 380
 381     if (GET_LMASK64(arg2) <= 6)
 382         do_sb(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 48), mem_idx);
 383
 384     if (GET_LMASK64(arg2) <= 5)
 385         do_sb(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 40), mem_idx);
 386
 387     if (GET_LMASK64(arg2) <= 4)
 388         do_sb(env, GET_OFFSET(arg2, 3), (uint8_t)(arg1 >> 32), mem_idx);
 389
 390     if (GET_LMASK64(arg2) <= 3)
 391         do_sb(env, GET_OFFSET(arg2, 4), (uint8_t)(arg1 >> 24), mem_idx);
 392
 393     if (GET_LMASK64(arg2) <= 2)
 394         do_sb(env, GET_OFFSET(arg2, 5), (uint8_t)(arg1 >> 16), mem_idx);
 395
 396     if (GET_LMASK64(arg2) <= 1)
 397         do_sb(env, GET_OFFSET(arg2, 6), (uint8_t)(arg1 >> 8), mem_idx);
 398
 399     if (GET_LMASK64(arg2) <= 0)
 400         do_sb(env, GET_OFFSET(arg2, 7), (uint8_t)arg1, mem_idx);
 401 }
 402
 403 void helper_sdr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 404                 int mem_idx)
 405 {
 406     do_sb(env, arg2, (uint8_t)arg1, mem_idx);
 407
 408     if (GET_LMASK64(arg2) >= 1)
 409         do_sb(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8), mem_idx);
 410
 411     if (GET_LMASK64(arg2) >= 2)
 412         do_sb(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16), mem_idx);
 413
 414     if (GET_LMASK64(arg2) >= 3)
 415         do_sb(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24), mem_idx);
 416
 417     if (GET_LMASK64(arg2) >= 4)
 418         do_sb(env, GET_OFFSET(arg2, -4), (uint8_t)(arg1 >> 32), mem_idx);
 419
 420     if (GET_LMASK64(arg2) >= 5)
 421         do_sb(env, GET_OFFSET(arg2, -5), (uint8_t)(arg1 >> 40), mem_idx);
 422
 423     if (GET_LMASK64(arg2) >= 6)
 424         do_sb(env, GET_OFFSET(arg2, -6), (uint8_t)(arg1 >> 48), mem_idx);
 425
 426     if (GET_LMASK64(arg2) == 7)
 427         do_sb(env, GET_OFFSET(arg2, -7), (uint8_t)(arg1 >> 56), mem_idx);
 428 }
 429 #endif /* TARGET_MIPS64 */
 430
 431 static const int multiple_regs[] = { 16, 17, 18, 19, 20, 21, 22, 23, 30 };
 432
 433 void helper_lwm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 434                 uint32_t mem_idx)
 435 {
 436     target_ulong base_reglist = reglist & 0xf;
 437     target_ulong do_r31 = reglist & 0x10;
 438
 439     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 440         target_ulong i;
 441
 442         for (i = 0; i < base_reglist; i++) {
 443             env->active_tc.gpr[multiple_regs[i]] =
 444                 (target_long)do_lw(env, addr, mem_idx);
 445             addr += 4;
 446         }
 447     }
 448
 449     if (do_r31) {
 450         env->active_tc.gpr[31] = (target_long)do_lw(env, addr, mem_idx);
 451     }
 452 }
 453
 454 void helper_swm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 455                 uint32_t mem_idx)
 456 {
 457     target_ulong base_reglist = reglist & 0xf;
 458     target_ulong do_r31 = reglist & 0x10;
 459
 460     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 461         target_ulong i;
 462
 463         for (i = 0; i < base_reglist; i++) {
 464             do_sw(env, addr, env->active_tc.gpr[multiple_regs[i]], mem_idx);
 465             addr += 4;
 466         }
 467     }
 468
 469     if (do_r31) {
 470         do_sw(env, addr, env->active_tc.gpr[31], mem_idx);
 471     }
 472 }
 473
 474 #if defined(TARGET_MIPS64)
 475 void helper_ldm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 476                 uint32_t mem_idx)
 477 {
 478     target_ulong base_reglist = reglist & 0xf;
 479     target_ulong do_r31 = reglist & 0x10;
 480
 481     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 482         target_ulong i;
 483
 484         for (i = 0; i < base_reglist; i++) {
 485             env->active_tc.gpr[multiple_regs[i]] = do_ld(env, addr, mem_idx);
 486             addr += 8;
 487         }
 488     }
 489
 490     if (do_r31) {
 491         env->active_tc.gpr[31] = do_ld(env, addr, mem_idx);
 492     }
 493 }
 494
 495 void helper_sdm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 496                 uint32_t mem_idx)
 497 {
 498     target_ulong base_reglist = reglist & 0xf;
 499     target_ulong do_r31 = reglist & 0x10;
 500
 501     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 502         target_ulong i;
 503
 504         for (i = 0; i < base_reglist; i++) {
 505             do_sd(env, addr, env->active_tc.gpr[multiple_regs[i]], mem_idx);
 506             addr += 8;
 507         }
 508     }
 509
 510     if (do_r31) {
 511         do_sd(env, addr, env->active_tc.gpr[31], mem_idx);
 512     }
 513 }
 514 #endif
 515
 516 #ifndef CONFIG_USER_ONLY
 517 /* SMP helpers.  */
 518 static bool mips_vpe_is_wfi(MIPSCPU *c)
 519 {
 520     CPUState *cpu = CPU(c);
 521     CPUMIPSState *env = &c->env;
 522
 523     /* If the VPE is halted but otherwise active, it means it's waiting for
 524        an interrupt.  */
 525     return cpu->halted && mips_vpe_active(env);
 526 }
 527
 528 static inline void mips_vpe_wake(MIPSCPU *c)
 529 {
 530     /* Dont set ->halted = 0 directly, let it be done via cpu_has_work
 531        because there might be other conditions that state that c should
 532        be sleeping.  */
 533     cpu_interrupt(CPU(c), CPU_INTERRUPT_WAKE);
 534 }
 535
 536 static inline void mips_vpe_sleep(MIPSCPU *cpu)
 537 {
 538     CPUState *cs = CPU(cpu);
 539
 540     /* The VPE was shut off, really go to bed.
 541        Reset any old _WAKE requests.  */
 542     cs->halted = 1;
 543     cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
 544 }
 545
 546 static inline void mips_tc_wake(MIPSCPU *cpu, int tc)
 547 {
 548     CPUMIPSState *c = &cpu->env;
 549
 550     /* FIXME: TC reschedule.  */
 551     if (mips_vpe_active(c) && !mips_vpe_is_wfi(cpu)) {
 552         mips_vpe_wake(cpu);
 553     }
 554 }
 555
 556 static inline void mips_tc_sleep(MIPSCPU *cpu, int tc)
 557 {
 558     CPUMIPSState *c = &cpu->env;
 559
 560     /* FIXME: TC reschedule.  */
 561     if (!mips_vpe_active(c)) {
 562         mips_vpe_sleep(cpu);
 563     }
 564 }
 565
 566 /**
 567  * mips_cpu_map_tc:
 568  * @env: CPU from which mapping is performed.
 569  * @tc: Should point to an int with the value of the global TC index.
 570  *
 571  * This function will transform @tc into a local index within the
 572  * returned #CPUMIPSState.
 573  */
 574 /* FIXME: This code assumes that all VPEs have the same number of TCs,
 575           which depends on runtime setup. Can probably be fixed by
 576           walking the list of CPUMIPSStates.  */
 577 static CPUMIPSState *mips_cpu_map_tc(CPUMIPSState *env, int *tc)
 578 {
 579     MIPSCPU *cpu;
 580     CPUState *cs;
 581     CPUState *other_cs;
 582     int vpe_idx;
 583     int tc_idx = *tc;
 584
 585     if (!(env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP))) {
 586         /* Not allowed to address other CPUs.  */
 587         *tc = env->current_tc;
 588         return env;
 589     }
 590
 591     cs = CPU(mips_env_get_cpu(env));
 592     vpe_idx = tc_idx / cs->nr_threads;
 593     *tc = tc_idx % cs->nr_threads;
 594     other_cs = qemu_get_cpu(vpe_idx);
 595     if (other_cs == NULL) {
 596         return env;
 597     }
 598     cpu = MIPS_CPU(other_cs);
 599     return &cpu->env;
 600 }
 601
 602 /* The per VPE CP0_Status register shares some fields with the per TC
 603    CP0_TCStatus registers. These fields are wired to the same registers,
 604    so changes to either of them should be reflected on both registers.
 605
 606    Also, EntryHi shares the bottom 8 bit ASID with TCStauts.
 607
 608    These helper call synchronizes the regs for a given cpu.  */
 609
 610 /* Called for updates to CP0_Status.  */
 611 static void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc)
 612 {
 613     int32_t tcstatus, *tcst;
 614     uint32_t v = cpu->CP0_Status;
 615     uint32_t cu, mx, asid, ksu;
 616     uint32_t mask = ((1 << CP0TCSt_TCU3)
 617                        | (1 << CP0TCSt_TCU2)
 618                        | (1 << CP0TCSt_TCU1)
 619                        | (1 << CP0TCSt_TCU0)
 620                        | (1 << CP0TCSt_TMX)
 621                        | (3 << CP0TCSt_TKSU)
 622                        | (0xff << CP0TCSt_TASID));
 623
 624     cu = (v >> CP0St_CU0) & 0xf;
 625     mx = (v >> CP0St_MX) & 0x1;
 626     ksu = (v >> CP0St_KSU) & 0x3;
 627     asid = env->CP0_EntryHi & 0xff;
 628
 629     tcstatus = cu << CP0TCSt_TCU0;
 630     tcstatus |= mx << CP0TCSt_TMX;
 631     tcstatus |= ksu << CP0TCSt_TKSU;
 632     tcstatus |= asid;
 633
 634     if (tc == cpu->current_tc) {
 635         tcst = &cpu->active_tc.CP0_TCStatus;
 636     } else {
 637         tcst = &cpu->tcs[tc].CP0_TCStatus;
 638     }
 639
 640     *tcst &= ~mask;
 641     *tcst |= tcstatus;
 642     compute_hflags(cpu);
 643 }
 644
 645 /* Called for updates to CP0_TCStatus.  */
 646 static void sync_c0_tcstatus(CPUMIPSState *cpu, int tc,
 647                              target_ulong v)
 648 {
 649     uint32_t status;
 650     uint32_t tcu, tmx, tasid, tksu;
 651     uint32_t mask = ((1U << CP0St_CU3)
 652                        | (1 << CP0St_CU2)
 653                        | (1 << CP0St_CU1)
 654                        | (1 << CP0St_CU0)
 655                        | (1 << CP0St_MX)
 656                        | (3 << CP0St_KSU));
 657
 658     tcu = (v >> CP0TCSt_TCU0) & 0xf;
 659     tmx = (v >> CP0TCSt_TMX) & 0x1;
 660     tasid = v & 0xff;
 661     tksu = (v >> CP0TCSt_TKSU) & 0x3;
 662
 663     status = tcu << CP0St_CU0;
 664     status |= tmx << CP0St_MX;
 665     status |= tksu << CP0St_KSU;
 666
 667     cpu->CP0_Status &= ~mask;
 668     cpu->CP0_Status |= status;
 669
 670     /* Sync the TASID with EntryHi.  */
 671     cpu->CP0_EntryHi &= ~0xff;
 672     cpu->CP0_EntryHi = tasid;
 673
 674     compute_hflags(cpu);
 675 }
 676
 677 /* Called for updates to CP0_EntryHi.  */
 678 static void sync_c0_entryhi(CPUMIPSState *cpu, int tc)
 679 {
 680     int32_t *tcst;
 681     uint32_t asid, v = cpu->CP0_EntryHi;
 682
 683     asid = v & 0xff;
 684
 685     if (tc == cpu->current_tc) {
 686         tcst = &cpu->active_tc.CP0_TCStatus;
 687     } else {
 688         tcst = &cpu->tcs[tc].CP0_TCStatus;
 689     }
 690
 691     *tcst &= ~0xff;
 692     *tcst |= asid;
 693 }
 694
 695 /* CP0 helpers */
 696 target_ulong helper_mfc0_mvpcontrol(CPUMIPSState *env)
 697 {
 698     return env->mvp->CP0_MVPControl;
 699 }
 700
 701 target_ulong helper_mfc0_mvpconf0(CPUMIPSState *env)
 702 {
 703     return env->mvp->CP0_MVPConf0;
 704 }
 705
 706 target_ulong helper_mfc0_mvpconf1(CPUMIPSState *env)
 707 {
 708     return env->mvp->CP0_MVPConf1;
 709 }
 710
 711 target_ulong helper_mfc0_random(CPUMIPSState *env)
 712 {
 713     return (int32_t)cpu_mips_get_random(env);
 714 }
 715
 716 target_ulong helper_mfc0_tcstatus(CPUMIPSState *env)
 717 {
 718     return env->active_tc.CP0_TCStatus;
 719 }
 720
 721 target_ulong helper_mftc0_tcstatus(CPUMIPSState *env)
 722 {
 723     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 724     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 725
 726     if (other_tc == other->current_tc)
 727         return other->active_tc.CP0_TCStatus;
 728     else
 729         return other->tcs[other_tc].CP0_TCStatus;
 730 }
 731
 732 target_ulong helper_mfc0_tcbind(CPUMIPSState *env)
 733 {
 734     return env->active_tc.CP0_TCBind;
 735 }
 736
 737 target_ulong helper_mftc0_tcbind(CPUMIPSState *env)
 738 {
 739     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 740     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 741
 742     if (other_tc == other->current_tc)
 743         return other->active_tc.CP0_TCBind;
 744     else
 745         return other->tcs[other_tc].CP0_TCBind;
 746 }
 747
 748 target_ulong helper_mfc0_tcrestart(CPUMIPSState *env)
 749 {
 750     return env->active_tc.PC;
 751 }
 752
 753 target_ulong helper_mftc0_tcrestart(CPUMIPSState *env)
 754 {
 755     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 756     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 757
 758     if (other_tc == other->current_tc)
 759         return other->active_tc.PC;
 760     else
 761         return other->tcs[other_tc].PC;
 762 }
 763
 764 target_ulong helper_mfc0_tchalt(CPUMIPSState *env)
 765 {
 766     return env->active_tc.CP0_TCHalt;
 767 }
 768
 769 target_ulong helper_mftc0_tchalt(CPUMIPSState *env)
 770 {
 771     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 772     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 773
 774     if (other_tc == other->current_tc)
 775         return other->active_tc.CP0_TCHalt;
 776     else
 777         return other->tcs[other_tc].CP0_TCHalt;
 778 }
 779
 780 target_ulong helper_mfc0_tccontext(CPUMIPSState *env)
 781 {
 782     return env->active_tc.CP0_TCContext;
 783 }
 784
 785 target_ulong helper_mftc0_tccontext(CPUMIPSState *env)
 786 {
 787     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 788     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 789
 790     if (other_tc == other->current_tc)
 791         return other->active_tc.CP0_TCContext;
 792     else
 793         return other->tcs[other_tc].CP0_TCContext;
 794 }
 795
 796 target_ulong helper_mfc0_tcschedule(CPUMIPSState *env)
 797 {
 798     return env->active_tc.CP0_TCSchedule;
 799 }
 800
 801 target_ulong helper_mftc0_tcschedule(CPUMIPSState *env)
 802 {
 803     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 804     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 805
 806     if (other_tc == other->current_tc)
 807         return other->active_tc.CP0_TCSchedule;
 808     else
 809         return other->tcs[other_tc].CP0_TCSchedule;
 810 }
 811
 812 target_ulong helper_mfc0_tcschefback(CPUMIPSState *env)
 813 {
 814     return env->active_tc.CP0_TCScheFBack;
 815 }
 816
 817 target_ulong helper_mftc0_tcschefback(CPUMIPSState *env)
 818 {
 819     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 820     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 821
 822     if (other_tc == other->current_tc)
 823         return other->active_tc.CP0_TCScheFBack;
 824     else
 825         return other->tcs[other_tc].CP0_TCScheFBack;
 826 }
 827
 828 target_ulong helper_mfc0_count(CPUMIPSState *env)
 829 {
 830     return (int32_t)cpu_mips_get_count(env);
 831 }
 832
 833 target_ulong helper_mftc0_entryhi(CPUMIPSState *env)
 834 {
 835     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 836     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 837
 838     return other->CP0_EntryHi;
 839 }
 840
 841 target_ulong helper_mftc0_cause(CPUMIPSState *env)
 842 {
 843     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 844     int32_t tccause;
 845     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 846
 847     if (other_tc == other->current_tc) {
 848         tccause = other->CP0_Cause;
 849     } else {
 850         tccause = other->CP0_Cause;
 851     }
 852
 853     return tccause;
 854 }
 855
 856 target_ulong helper_mftc0_status(CPUMIPSState *env)
 857 {
 858     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 859     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 860
 861     return other->CP0_Status;
 862 }
 863
 864 target_ulong helper_mfc0_lladdr(CPUMIPSState *env)
 865 {
 866     return (int32_t)(env->lladdr >> env->CP0_LLAddr_shift);
 867 }
 868
 869 target_ulong helper_mfc0_watchlo(CPUMIPSState *env, uint32_t sel)
 870 {
 871     return (int32_t)env->CP0_WatchLo[sel];
 872 }
 873
 874 target_ulong helper_mfc0_watchhi(CPUMIPSState *env, uint32_t sel)
 875 {
 876     return env->CP0_WatchHi[sel];
 877 }
 878
 879 target_ulong helper_mfc0_debug(CPUMIPSState *env)
 880 {
 881     target_ulong t0 = env->CP0_Debug;
 882     if (env->hflags & MIPS_HFLAG_DM)
 883         t0 |= 1 << CP0DB_DM;
 884
 885     return t0;
 886 }
 887
 888 target_ulong helper_mftc0_debug(CPUMIPSState *env)
 889 {
 890     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 891     int32_t tcstatus;
 892     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 893
 894     if (other_tc == other->current_tc)
 895         tcstatus = other->active_tc.CP0_Debug_tcstatus;
 896     else
 897         tcstatus = other->tcs[other_tc].CP0_Debug_tcstatus;
 898
 899     /* XXX: Might be wrong, check with EJTAG spec. */
 900     return (other->CP0_Debug & ~((1 << CP0DB_SSt) | (1 << CP0DB_Halt))) |
 901             (tcstatus & ((1 << CP0DB_SSt) | (1 << CP0DB_Halt)));
 902 }
 903
 904 #if defined(TARGET_MIPS64)
 905 target_ulong helper_dmfc0_tcrestart(CPUMIPSState *env)
 906 {
 907     return env->active_tc.PC;
 908 }
 909
 910 target_ulong helper_dmfc0_tchalt(CPUMIPSState *env)
 911 {
 912     return env->active_tc.CP0_TCHalt;
 913 }
 914
 915 target_ulong helper_dmfc0_tccontext(CPUMIPSState *env)
 916 {
 917     return env->active_tc.CP0_TCContext;
 918 }
 919
 920 target_ulong helper_dmfc0_tcschedule(CPUMIPSState *env)
 921 {
 922     return env->active_tc.CP0_TCSchedule;
 923 }
 924
 925 target_ulong helper_dmfc0_tcschefback(CPUMIPSState *env)
 926 {
 927     return env->active_tc.CP0_TCScheFBack;
 928 }
 929
 930 target_ulong helper_dmfc0_lladdr(CPUMIPSState *env)
 931 {
 932     return env->lladdr >> env->CP0_LLAddr_shift;
 933 }
 934
 935 target_ulong helper_dmfc0_watchlo(CPUMIPSState *env, uint32_t sel)
 936 {
 937     return env->CP0_WatchLo[sel];
 938 }
 939 #endif /* TARGET_MIPS64 */
 940
 941 void helper_mtc0_index(CPUMIPSState *env, target_ulong arg1)
 942 {
 943     int num = 1;
 944     unsigned int tmp = env->tlb->nb_tlb;
 945
 946     do {
 947         tmp >>= 1;
 948         num <<= 1;
 949     } while (tmp);
 950     env->CP0_Index = (env->CP0_Index & 0x80000000) | (arg1 & (num - 1));
 951 }
 952
 953 void helper_mtc0_mvpcontrol(CPUMIPSState *env, target_ulong arg1)
 954 {
 955     uint32_t mask = 0;
 956     uint32_t newval;
 957
 958     if (env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP))
 959         mask |= (1 << CP0MVPCo_CPA) | (1 << CP0MVPCo_VPC) |
 960                 (1 << CP0MVPCo_EVP);
 961     if (env->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
 962         mask |= (1 << CP0MVPCo_STLB);
 963     newval = (env->mvp->CP0_MVPControl & ~mask) | (arg1 & mask);
 964
 965     // TODO: Enable/disable shared TLB, enable/disable VPEs.
 966
 967     env->mvp->CP0_MVPControl = newval;
 968 }
 969
 970 void helper_mtc0_vpecontrol(CPUMIPSState *env, target_ulong arg1)
 971 {
 972     uint32_t mask;
 973     uint32_t newval;
 974
 975     mask = (1 << CP0VPECo_YSI) | (1 << CP0VPECo_GSI) |
 976            (1 << CP0VPECo_TE) | (0xff << CP0VPECo_TargTC);
 977     newval = (env->CP0_VPEControl & ~mask) | (arg1 & mask);
 978
 979     /* Yield scheduler intercept not implemented. */
 980     /* Gating storage scheduler intercept not implemented. */
 981
 982     // TODO: Enable/disable TCs.
 983
 984     env->CP0_VPEControl = newval;
 985 }
 986
 987 void helper_mttc0_vpecontrol(CPUMIPSState *env, target_ulong arg1)
 988 {
 989     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
 990     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
 991     uint32_t mask;
 992     uint32_t newval;
 993
 994     mask = (1 << CP0VPECo_YSI) | (1 << CP0VPECo_GSI) |
 995            (1 << CP0VPECo_TE) | (0xff << CP0VPECo_TargTC);
 996     newval = (other->CP0_VPEControl & ~mask) | (arg1 & mask);
 997
 998     /* TODO: Enable/disable TCs.  */
 999
1000     other->CP0_VPEControl = newval;
1001 }
1002
1003 target_ulong helper_mftc0_vpecontrol(CPUMIPSState *env)
1004 {
1005     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1006     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1007     /* FIXME: Mask away return zero on read bits.  */
1008     return other->CP0_VPEControl;
1009 }
1010
1011 target_ulong helper_mftc0_vpeconf0(CPUMIPSState *env)
1012 {
1013     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1014     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1015
1016     return other->CP0_VPEConf0;
1017 }
1018
1019 void helper_mtc0_vpeconf0(CPUMIPSState *env, target_ulong arg1)
1020 {
1021     uint32_t mask = 0;
1022     uint32_t newval;
1023
1024     if (env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) {
1025         if (env->CP0_VPEConf0 & (1 << CP0VPEC0_VPA))
1026             mask |= (0xff << CP0VPEC0_XTC);
1027         mask |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA);
1028     }
1029     newval = (env->CP0_VPEConf0 & ~mask) | (arg1 & mask);
1030
1031     // TODO: TC exclusive handling due to ERL/EXL.
1032
1033     env->CP0_VPEConf0 = newval;
1034 }
1035
1036 void helper_mttc0_vpeconf0(CPUMIPSState *env, target_ulong arg1)
1037 {
1038     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1039     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1040     uint32_t mask = 0;
1041     uint32_t newval;
1042
1043     mask |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA);
1044     newval = (other->CP0_VPEConf0 & ~mask) | (arg1 & mask);
1045
1046     /* TODO: TC exclusive handling due to ERL/EXL.  */
1047     other->CP0_VPEConf0 = newval;
1048 }
1049
1050 void helper_mtc0_vpeconf1(CPUMIPSState *env, target_ulong arg1)
1051 {
1052     uint32_t mask = 0;
1053     uint32_t newval;
1054
1055     if (env->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1056         mask |= (0xff << CP0VPEC1_NCX) | (0xff << CP0VPEC1_NCP2) |
1057                 (0xff << CP0VPEC1_NCP1);
1058     newval = (env->CP0_VPEConf1 & ~mask) | (arg1 & mask);
1059
1060     /* UDI not implemented. */
1061     /* CP2 not implemented. */
1062
1063     // TODO: Handle FPU (CP1) binding.
1064
1065     env->CP0_VPEConf1 = newval;
1066 }
1067
1068 void helper_mtc0_yqmask(CPUMIPSState *env, target_ulong arg1)
1069 {
1070     /* Yield qualifier inputs not implemented. */
1071     env->CP0_YQMask = 0x00000000;
1072 }
1073
1074 void helper_mtc0_vpeopt(CPUMIPSState *env, target_ulong arg1)
1075 {
1076     env->CP0_VPEOpt = arg1 & 0x0000ffff;
1077 }
1078
1079 void helper_mtc0_entrylo0(CPUMIPSState *env, target_ulong arg1)
1080 {
1081     /* Large physaddr (PABITS) not implemented */
1082     /* 1k pages not implemented */
1083     env->CP0_EntryLo0 = arg1 & 0x3FFFFFFF;
1084 }
1085
1086 void helper_mtc0_tcstatus(CPUMIPSState *env, target_ulong arg1)
1087 {
1088     uint32_t mask = env->CP0_TCStatus_rw_bitmask;
1089     uint32_t newval;
1090
1091     newval = (env->active_tc.CP0_TCStatus & ~mask) | (arg1 & mask);
1092
1093     env->active_tc.CP0_TCStatus = newval;
1094     sync_c0_tcstatus(env, env->current_tc, newval);
1095 }
1096
1097 void helper_mttc0_tcstatus(CPUMIPSState *env, target_ulong arg1)
1098 {
1099     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1100     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1101
1102     if (other_tc == other->current_tc)
1103         other->active_tc.CP0_TCStatus = arg1;
1104     else
1105         other->tcs[other_tc].CP0_TCStatus = arg1;
1106     sync_c0_tcstatus(other, other_tc, arg1);
1107 }
1108
1109 void helper_mtc0_tcbind(CPUMIPSState *env, target_ulong arg1)
1110 {
1111     uint32_t mask = (1 << CP0TCBd_TBE);
1112     uint32_t newval;
1113
1114     if (env->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1115         mask |= (1 << CP0TCBd_CurVPE);
1116     newval = (env->active_tc.CP0_TCBind & ~mask) | (arg1 & mask);
1117     env->active_tc.CP0_TCBind = newval;
1118 }
1119
1120 void helper_mttc0_tcbind(CPUMIPSState *env, target_ulong arg1)
1121 {
1122     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1123     uint32_t mask = (1 << CP0TCBd_TBE);
1124     uint32_t newval;
1125     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1126
1127     if (other->mvp->CP0_MVPControl & (1 << CP0MVPCo_VPC))
1128         mask |= (1 << CP0TCBd_CurVPE);
1129     if (other_tc == other->current_tc) {
1130         newval = (other->active_tc.CP0_TCBind & ~mask) | (arg1 & mask);
1131         other->active_tc.CP0_TCBind = newval;
1132     } else {
1133         newval = (other->tcs[other_tc].CP0_TCBind & ~mask) | (arg1 & mask);
1134         other->tcs[other_tc].CP0_TCBind = newval;
1135     }
1136 }
1137
1138 void helper_mtc0_tcrestart(CPUMIPSState *env, target_ulong arg1)
1139 {
1140     env->active_tc.PC = arg1;
1141     env->active_tc.CP0_TCStatus &= ~(1 << CP0TCSt_TDS);
1142     env->lladdr = 0ULL;
1143     /* MIPS16 not implemented. */
1144 }
1145
1146 void helper_mttc0_tcrestart(CPUMIPSState *env, target_ulong arg1)
1147 {
1148     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1149     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1150
1151     if (other_tc == other->current_tc) {
1152         other->active_tc.PC = arg1;
1153         other->active_tc.CP0_TCStatus &= ~(1 << CP0TCSt_TDS);
1154         other->lladdr = 0ULL;
1155         /* MIPS16 not implemented. */
1156     } else {
1157         other->tcs[other_tc].PC = arg1;
1158         other->tcs[other_tc].CP0_TCStatus &= ~(1 << CP0TCSt_TDS);
1159         other->lladdr = 0ULL;
1160         /* MIPS16 not implemented. */
1161     }
1162 }
1163
1164 void helper_mtc0_tchalt(CPUMIPSState *env, target_ulong arg1)
1165 {
1166     MIPSCPU *cpu = mips_env_get_cpu(env);
1167
1168     env->active_tc.CP0_TCHalt = arg1 & 0x1;
1169
1170     // TODO: Halt TC / Restart (if allocated+active) TC.
1171     if (env->active_tc.CP0_TCHalt & 1) {
1172         mips_tc_sleep(cpu, env->current_tc);
1173     } else {
1174         mips_tc_wake(cpu, env->current_tc);
1175     }
1176 }
1177
1178 void helper_mttc0_tchalt(CPUMIPSState *env, target_ulong arg1)
1179 {
1180     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1181     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1182     MIPSCPU *other_cpu = mips_env_get_cpu(other);
1183
1184     // TODO: Halt TC / Restart (if allocated+active) TC.
1185
1186     if (other_tc == other->current_tc)
1187         other->active_tc.CP0_TCHalt = arg1;
1188     else
1189         other->tcs[other_tc].CP0_TCHalt = arg1;
1190
1191     if (arg1 & 1) {
1192         mips_tc_sleep(other_cpu, other_tc);
1193     } else {
1194         mips_tc_wake(other_cpu, other_tc);
1195     }
1196 }
1197
1198 void helper_mtc0_tccontext(CPUMIPSState *env, target_ulong arg1)
1199 {
1200     env->active_tc.CP0_TCContext = arg1;
1201 }
1202
1203 void helper_mttc0_tccontext(CPUMIPSState *env, target_ulong arg1)
1204 {
1205     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1206     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1207
1208     if (other_tc == other->current_tc)
1209         other->active_tc.CP0_TCContext = arg1;
1210     else
1211         other->tcs[other_tc].CP0_TCContext = arg1;
1212 }
1213
1214 void helper_mtc0_tcschedule(CPUMIPSState *env, target_ulong arg1)
1215 {
1216     env->active_tc.CP0_TCSchedule = arg1;
1217 }
1218
1219 void helper_mttc0_tcschedule(CPUMIPSState *env, target_ulong arg1)
1220 {
1221     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1222     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1223
1224     if (other_tc == other->current_tc)
1225         other->active_tc.CP0_TCSchedule = arg1;
1226     else
1227         other->tcs[other_tc].CP0_TCSchedule = arg1;
1228 }
1229
1230 void helper_mtc0_tcschefback(CPUMIPSState *env, target_ulong arg1)
1231 {
1232     env->active_tc.CP0_TCScheFBack = arg1;
1233 }
1234
1235 void helper_mttc0_tcschefback(CPUMIPSState *env, target_ulong arg1)
1236 {
1237     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1238     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1239
1240     if (other_tc == other->current_tc)
1241         other->active_tc.CP0_TCScheFBack = arg1;
1242     else
1243         other->tcs[other_tc].CP0_TCScheFBack = arg1;
1244 }
1245
1246 void helper_mtc0_entrylo1(CPUMIPSState *env, target_ulong arg1)
1247 {
1248     /* Large physaddr (PABITS) not implemented */
1249     /* 1k pages not implemented */
1250     env->CP0_EntryLo1 = arg1 & 0x3FFFFFFF;
1251 }
1252
1253 void helper_mtc0_context(CPUMIPSState *env, target_ulong arg1)
1254 {
1255     env->CP0_Context = (env->CP0_Context & 0x007FFFFF) | (arg1 & ~0x007FFFFF);
1256 }
1257
1258 void helper_mtc0_pagemask(CPUMIPSState *env, target_ulong arg1)
1259 {
1260     /* 1k pages not implemented */
1261     env->CP0_PageMask = arg1 & (0x1FFFFFFF & (TARGET_PAGE_MASK << 1));
1262 }
1263
1264 void helper_mtc0_pagegrain(CPUMIPSState *env, target_ulong arg1)
1265 {
1266     /* SmartMIPS not implemented */
1267     /* Large physaddr (PABITS) not implemented */
1268     /* 1k pages not implemented */
1269     env->CP0_PageGrain = 0;
1270 }
1271
1272 void helper_mtc0_wired(CPUMIPSState *env, target_ulong arg1)
1273 {
1274     env->CP0_Wired = arg1 % env->tlb->nb_tlb;
1275 }
1276
1277 void helper_mtc0_srsconf0(CPUMIPSState *env, target_ulong arg1)
1278 {
1279     env->CP0_SRSConf0 |= arg1 & env->CP0_SRSConf0_rw_bitmask;
1280 }
1281
1282 void helper_mtc0_srsconf1(CPUMIPSState *env, target_ulong arg1)
1283 {
1284     env->CP0_SRSConf1 |= arg1 & env->CP0_SRSConf1_rw_bitmask;
1285 }
1286
1287 void helper_mtc0_srsconf2(CPUMIPSState *env, target_ulong arg1)
1288 {
1289     env->CP0_SRSConf2 |= arg1 & env->CP0_SRSConf2_rw_bitmask;
1290 }
1291
1292 void helper_mtc0_srsconf3(CPUMIPSState *env, target_ulong arg1)
1293 {
1294     env->CP0_SRSConf3 |= arg1 & env->CP0_SRSConf3_rw_bitmask;
1295 }
1296
1297 void helper_mtc0_srsconf4(CPUMIPSState *env, target_ulong arg1)
1298 {
1299     env->CP0_SRSConf4 |= arg1 & env->CP0_SRSConf4_rw_bitmask;
1300 }
1301
1302 void helper_mtc0_hwrena(CPUMIPSState *env, target_ulong arg1)
1303 {
1304     env->CP0_HWREna = arg1 & 0x0000000F;
1305 }
1306
1307 void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1)
1308 {
1309     cpu_mips_store_count(env, arg1);
1310 }
1311
1312 void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1)
1313 {
1314     target_ulong old, val;
1315
1316     /* 1k pages not implemented */
1317     val = arg1 & ((TARGET_PAGE_MASK << 1) | 0xFF);
1318 #if defined(TARGET_MIPS64)
1319     val &= env->SEGMask;
1320 #endif
1321     old = env->CP0_EntryHi;
1322     env->CP0_EntryHi = val;
1323     if (env->CP0_Config3 & (1 << CP0C3_MT)) {
1324         sync_c0_entryhi(env, env->current_tc);
1325     }
1326     /* If the ASID changes, flush qemu's TLB.  */
1327     if ((old & 0xFF) != (val & 0xFF))
1328         cpu_mips_tlb_flush(env, 1);
1329 }
1330
1331 void helper_mttc0_entryhi(CPUMIPSState *env, target_ulong arg1)
1332 {
1333     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1334     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1335
1336     other->CP0_EntryHi = arg1;
1337     sync_c0_entryhi(other, other_tc);
1338 }
1339
1340 void helper_mtc0_compare(CPUMIPSState *env, target_ulong arg1)
1341 {
1342     cpu_mips_store_compare(env, arg1);
1343 }
1344
1345 void helper_mtc0_status(CPUMIPSState *env, target_ulong arg1)
1346 {
1347     MIPSCPU *cpu = mips_env_get_cpu(env);
1348     uint32_t val, old;
1349     uint32_t mask = env->CP0_Status_rw_bitmask;
1350
1351     val = arg1 & mask;
1352     old = env->CP0_Status;
1353     env->CP0_Status = (env->CP0_Status & ~mask) | val;
1354     if (env->CP0_Config3 & (1 << CP0C3_MT)) {
1355         sync_c0_status(env, env, env->current_tc);
1356     } else {
1357         compute_hflags(env);
1358     }
1359
1360     if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
1361         qemu_log("Status %08x (%08x) => %08x (%08x) Cause %08x",
1362                 old, old & env->CP0_Cause & CP0Ca_IP_mask,
1363                 val, val & env->CP0_Cause & CP0Ca_IP_mask,
1364                 env->CP0_Cause);
1365         switch (env->hflags & MIPS_HFLAG_KSU) {
1366         case MIPS_HFLAG_UM: qemu_log(", UM\n"); break;
1367         case MIPS_HFLAG_SM: qemu_log(", SM\n"); break;
1368         case MIPS_HFLAG_KM: qemu_log("\n"); break;
1369         default:
1370             cpu_abort(CPU(cpu), "Invalid MMU mode!\n");
1371             break;
1372         }
1373     }
1374 }
1375
1376 void helper_mttc0_status(CPUMIPSState *env, target_ulong arg1)
1377 {
1378     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1379     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1380
1381     other->CP0_Status = arg1 & ~0xf1000018;
1382     sync_c0_status(env, other, other_tc);
1383 }
1384
1385 void helper_mtc0_intctl(CPUMIPSState *env, target_ulong arg1)
1386 {
1387     /* vectored interrupts not implemented, no performance counters. */
1388     env->CP0_IntCtl = (env->CP0_IntCtl & ~0x000003e0) | (arg1 & 0x000003e0);
1389 }
1390
1391 void helper_mtc0_srsctl(CPUMIPSState *env, target_ulong arg1)
1392 {
1393     uint32_t mask = (0xf << CP0SRSCtl_ESS) | (0xf << CP0SRSCtl_PSS);
1394     env->CP0_SRSCtl = (env->CP0_SRSCtl & ~mask) | (arg1 & mask);
1395 }
1396
1397 static void mtc0_cause(CPUMIPSState *cpu, target_ulong arg1)
1398 {
1399     uint32_t mask = 0x00C00300;
1400     uint32_t old = cpu->CP0_Cause;
1401     int i;
1402
1403     if (cpu->insn_flags & ISA_MIPS32R2) {
1404         mask |= 1 << CP0Ca_DC;
1405     }
1406
1407     cpu->CP0_Cause = (cpu->CP0_Cause & ~mask) | (arg1 & mask);
1408
1409     if ((old ^ cpu->CP0_Cause) & (1 << CP0Ca_DC)) {
1410         if (cpu->CP0_Cause & (1 << CP0Ca_DC)) {
1411             cpu_mips_stop_count(cpu);
1412         } else {
1413             cpu_mips_start_count(cpu);
1414         }
1415     }
1416
1417     /* Set/reset software interrupts */
1418     for (i = 0 ; i < 2 ; i++) {
1419         if ((old ^ cpu->CP0_Cause) & (1 << (CP0Ca_IP + i))) {
1420             cpu_mips_soft_irq(cpu, i, cpu->CP0_Cause & (1 << (CP0Ca_IP + i)));
1421         }
1422     }
1423 }
1424
1425 void helper_mtc0_cause(CPUMIPSState *env, target_ulong arg1)
1426 {
1427     mtc0_cause(env, arg1);
1428 }
1429
1430 void helper_mttc0_cause(CPUMIPSState *env, target_ulong arg1)
1431 {
1432     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1433     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1434
1435     mtc0_cause(other, arg1);
1436 }
1437
1438 target_ulong helper_mftc0_epc(CPUMIPSState *env)
1439 {
1440     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1441     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1442
1443     return other->CP0_EPC;
1444 }
1445
1446 target_ulong helper_mftc0_ebase(CPUMIPSState *env)
1447 {
1448     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1449     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1450
1451     return other->CP0_EBase;
1452 }
1453
1454 void helper_mtc0_ebase(CPUMIPSState *env, target_ulong arg1)
1455 {
1456     /* vectored interrupts not implemented */
1457     env->CP0_EBase = (env->CP0_EBase & ~0x3FFFF000) | (arg1 & 0x3FFFF000);
1458 }
1459
1460 void helper_mttc0_ebase(CPUMIPSState *env, target_ulong arg1)
1461 {
1462     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1463     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1464     other->CP0_EBase = (other->CP0_EBase & ~0x3FFFF000) | (arg1 & 0x3FFFF000);
1465 }
1466
1467 target_ulong helper_mftc0_configx(CPUMIPSState *env, target_ulong idx)
1468 {
1469     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1470     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1471
1472     switch (idx) {
1473     case 0: return other->CP0_Config0;
1474     case 1: return other->CP0_Config1;
1475     case 2: return other->CP0_Config2;
1476     case 3: return other->CP0_Config3;
1477     /* 4 and 5 are reserved.  */
1478     case 6: return other->CP0_Config6;
1479     case 7: return other->CP0_Config7;
1480     default:
1481         break;
1482     }
1483     return 0;
1484 }
1485
1486 void helper_mtc0_config0(CPUMIPSState *env, target_ulong arg1)
1487 {
1488     env->CP0_Config0 = (env->CP0_Config0 & 0x81FFFFF8) | (arg1 & 0x00000007);
1489 }
1490
1491 void helper_mtc0_config2(CPUMIPSState *env, target_ulong arg1)
1492 {
1493     /* tertiary/secondary caches not implemented */
1494     env->CP0_Config2 = (env->CP0_Config2 & 0x8FFF0FFF);
1495 }
1496
1497 void helper_mtc0_config4(CPUMIPSState *env, target_ulong arg1)
1498 {
1499     env->CP0_Config4 = (env->CP0_Config4 & (~env->CP0_Config4_rw_bitmask)) |
1500                        (arg1 & env->CP0_Config4_rw_bitmask);
1501 }
1502
1503 void helper_mtc0_config5(CPUMIPSState *env, target_ulong arg1)
1504 {
1505     env->CP0_Config5 = (env->CP0_Config5 & (~env->CP0_Config5_rw_bitmask)) |
1506                        (arg1 & env->CP0_Config5_rw_bitmask);
1507 }
1508
1509 void helper_mtc0_lladdr(CPUMIPSState *env, target_ulong arg1)
1510 {
1511     target_long mask = env->CP0_LLAddr_rw_bitmask;
1512     arg1 = arg1 << env->CP0_LLAddr_shift;
1513     env->lladdr = (env->lladdr & ~mask) | (arg1 & mask);
1514 }
1515
1516 void helper_mtc0_watchlo(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1517 {
1518     /* Watch exceptions for instructions, data loads, data stores
1519        not implemented. */
1520     env->CP0_WatchLo[sel] = (arg1 & ~0x7);
1521 }
1522
1523 void helper_mtc0_watchhi(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1524 {
1525     env->CP0_WatchHi[sel] = (arg1 & 0x40FF0FF8);
1526     env->CP0_WatchHi[sel] &= ~(env->CP0_WatchHi[sel] & arg1 & 0x7);
1527 }
1528
1529 void helper_mtc0_xcontext(CPUMIPSState *env, target_ulong arg1)
1530 {
1531     target_ulong mask = (1ULL << (env->SEGBITS - 7)) - 1;
1532     env->CP0_XContext = (env->CP0_XContext & mask) | (arg1 & ~mask);
1533 }
1534
1535 void helper_mtc0_framemask(CPUMIPSState *env, target_ulong arg1)
1536 {
1537     env->CP0_Framemask = arg1; /* XXX */
1538 }
1539
1540 void helper_mtc0_debug(CPUMIPSState *env, target_ulong arg1)
1541 {
1542     env->CP0_Debug = (env->CP0_Debug & 0x8C03FC1F) | (arg1 & 0x13300120);
1543     if (arg1 & (1 << CP0DB_DM))
1544         env->hflags |= MIPS_HFLAG_DM;
1545     else
1546         env->hflags &= ~MIPS_HFLAG_DM;
1547 }
1548
1549 void helper_mttc0_debug(CPUMIPSState *env, target_ulong arg1)
1550 {
1551     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1552     uint32_t val = arg1 & ((1 << CP0DB_SSt) | (1 << CP0DB_Halt));
1553     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1554
1555     /* XXX: Might be wrong, check with EJTAG spec. */
1556     if (other_tc == other->current_tc)
1557         other->active_tc.CP0_Debug_tcstatus = val;
1558     else
1559         other->tcs[other_tc].CP0_Debug_tcstatus = val;
1560     other->CP0_Debug = (other->CP0_Debug &
1561                      ((1 << CP0DB_SSt) | (1 << CP0DB_Halt))) |
1562                      (arg1 & ~((1 << CP0DB_SSt) | (1 << CP0DB_Halt)));
1563 }
1564
1565 void helper_mtc0_performance0(CPUMIPSState *env, target_ulong arg1)
1566 {
1567     env->CP0_Performance0 = arg1 & 0x000007ff;
1568 }
1569
1570 void helper_mtc0_taglo(CPUMIPSState *env, target_ulong arg1)
1571 {
1572     env->CP0_TagLo = arg1 & 0xFFFFFCF6;
1573 }
1574
1575 void helper_mtc0_datalo(CPUMIPSState *env, target_ulong arg1)
1576 {
1577     env->CP0_DataLo = arg1; /* XXX */
1578 }
1579
1580 void helper_mtc0_taghi(CPUMIPSState *env, target_ulong arg1)
1581 {
1582     env->CP0_TagHi = arg1; /* XXX */
1583 }
1584
1585 void helper_mtc0_datahi(CPUMIPSState *env, target_ulong arg1)
1586 {
1587     env->CP0_DataHi = arg1; /* XXX */
1588 }
1589
1590 /* MIPS MT functions */
1591 target_ulong helper_mftgpr(CPUMIPSState *env, uint32_t sel)
1592 {
1593     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1594     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1595
1596     if (other_tc == other->current_tc)
1597         return other->active_tc.gpr[sel];
1598     else
1599         return other->tcs[other_tc].gpr[sel];
1600 }
1601
1602 target_ulong helper_mftlo(CPUMIPSState *env, uint32_t sel)
1603 {
1604     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1605     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1606
1607     if (other_tc == other->current_tc)
1608         return other->active_tc.LO[sel];
1609     else
1610         return other->tcs[other_tc].LO[sel];
1611 }
1612
1613 target_ulong helper_mfthi(CPUMIPSState *env, uint32_t sel)
1614 {
1615     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1616     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1617
1618     if (other_tc == other->current_tc)
1619         return other->active_tc.HI[sel];
1620     else
1621         return other->tcs[other_tc].HI[sel];
1622 }
1623
1624 target_ulong helper_mftacx(CPUMIPSState *env, uint32_t sel)
1625 {
1626     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1627     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1628
1629     if (other_tc == other->current_tc)
1630         return other->active_tc.ACX[sel];
1631     else
1632         return other->tcs[other_tc].ACX[sel];
1633 }
1634
1635 target_ulong helper_mftdsp(CPUMIPSState *env)
1636 {
1637     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1638     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1639
1640     if (other_tc == other->current_tc)
1641         return other->active_tc.DSPControl;
1642     else
1643         return other->tcs[other_tc].DSPControl;
1644 }
1645
1646 void helper_mttgpr(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1647 {
1648     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1649     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1650
1651     if (other_tc == other->current_tc)
1652         other->active_tc.gpr[sel] = arg1;
1653     else
1654         other->tcs[other_tc].gpr[sel] = arg1;
1655 }
1656
1657 void helper_mttlo(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1658 {
1659     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1660     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1661
1662     if (other_tc == other->current_tc)
1663         other->active_tc.LO[sel] = arg1;
1664     else
1665         other->tcs[other_tc].LO[sel] = arg1;
1666 }
1667
1668 void helper_mtthi(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1669 {
1670     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1671     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1672
1673     if (other_tc == other->current_tc)
1674         other->active_tc.HI[sel] = arg1;
1675     else
1676         other->tcs[other_tc].HI[sel] = arg1;
1677 }
1678
1679 void helper_mttacx(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
1680 {
1681     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1682     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1683
1684     if (other_tc == other->current_tc)
1685         other->active_tc.ACX[sel] = arg1;
1686     else
1687         other->tcs[other_tc].ACX[sel] = arg1;
1688 }
1689
1690 void helper_mttdsp(CPUMIPSState *env, target_ulong arg1)
1691 {
1692     int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC);
1693     CPUMIPSState *other = mips_cpu_map_tc(env, &other_tc);
1694
1695     if (other_tc == other->current_tc)
1696         other->active_tc.DSPControl = arg1;
1697     else
1698         other->tcs[other_tc].DSPControl = arg1;
1699 }
1700
1701 /* MIPS MT functions */
1702 target_ulong helper_dmt(void)
1703 {
1704     // TODO
1705      return 0;
1706 }
1707
1708 target_ulong helper_emt(void)
1709 {
1710     // TODO
1711     return 0;
1712 }
1713
1714 target_ulong helper_dvpe(CPUMIPSState *env)
1715 {
1716     CPUState *other_cs = first_cpu;
1717     target_ulong prev = env->mvp->CP0_MVPControl;
1718
1719     CPU_FOREACH(other_cs) {
1720         MIPSCPU *other_cpu = MIPS_CPU(other_cs);
1721         /* Turn off all VPEs except the one executing the dvpe.  */
1722         if (&other_cpu->env != env) {
1723             other_cpu->env.mvp->CP0_MVPControl &= ~(1 << CP0MVPCo_EVP);
1724             mips_vpe_sleep(other_cpu);
1725         }
1726     }
1727     return prev;
1728 }
1729
1730 target_ulong helper_evpe(CPUMIPSState *env)
1731 {
1732     CPUState *other_cs = first_cpu;
1733     target_ulong prev = env->mvp->CP0_MVPControl;
1734
1735     CPU_FOREACH(other_cs) {
1736         MIPSCPU *other_cpu = MIPS_CPU(other_cs);
1737
1738         if (&other_cpu->env != env
1739             /* If the VPE is WFI, don't disturb its sleep.  */
1740             && !mips_vpe_is_wfi(other_cpu)) {
1741             /* Enable the VPE.  */
1742             other_cpu->env.mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP);
1743             mips_vpe_wake(other_cpu); /* And wake it up.  */
1744         }
1745     }
1746     return prev;
1747 }
1748 #endif /* !CONFIG_USER_ONLY */
1749
1750 void helper_fork(target_ulong arg1, target_ulong arg2)
1751 {
1752     // arg1 = rt, arg2 = rs
1753     // TODO: store to TC register
1754 }
1755
1756 target_ulong helper_yield(CPUMIPSState *env, target_ulong arg)
1757 {
1758     target_long arg1 = arg;
1759
1760     if (arg1 < 0) {
1761         /* No scheduling policy implemented. */
1762         if (arg1 != -2) {
1763             if (env->CP0_VPEControl & (1 << CP0VPECo_YSI) &&
1764                 env->active_tc.CP0_TCStatus & (1 << CP0TCSt_DT)) {
1765                 env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
1766                 env->CP0_VPEControl |= 4 << CP0VPECo_EXCPT;
1767                 helper_raise_exception(env, EXCP_THREAD);
1768             }
1769         }
1770     } else if (arg1 == 0) {
1771         if (0 /* TODO: TC underflow */) {
1772             env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
1773             helper_raise_exception(env, EXCP_THREAD);
1774         } else {
1775             // TODO: Deallocate TC
1776         }
1777     } else if (arg1 > 0) {
1778         /* Yield qualifier inputs not implemented. */
1779         env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
1780         env->CP0_VPEControl |= 2 << CP0VPECo_EXCPT;
1781         helper_raise_exception(env, EXCP_THREAD);
1782     }
1783     return env->CP0_YQMask;
1784 }
1785
1786 #ifndef CONFIG_USER_ONLY
1787 /* TLB management */
1788 static void cpu_mips_tlb_flush (CPUMIPSState *env, int flush_global)
1789 {
1790     MIPSCPU *cpu = mips_env_get_cpu(env);
1791
1792     /* Flush qemu's TLB and discard all shadowed entries.  */
1793     tlb_flush(CPU(cpu), flush_global);
1794     env->tlb->tlb_in_use = env->tlb->nb_tlb;
1795 }
1796
1797 static void r4k_mips_tlb_flush_extra (CPUMIPSState *env, int first)
1798 {
1799     /* Discard entries from env->tlb[first] onwards.  */
1800     while (env->tlb->tlb_in_use > first) {
1801         r4k_invalidate_tlb(env, --env->tlb->tlb_in_use, 0);
1802     }
1803 }
1804
1805 static void r4k_fill_tlb(CPUMIPSState *env, int idx)
1806 {
1807     r4k_tlb_t *tlb;
1808
1809     /* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
1810     tlb = &env->tlb->mmu.r4k.tlb[idx];
1811     tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
1812 #if defined(TARGET_MIPS64)
1813     tlb->VPN &= env->SEGMask;
1814 #endif
1815     tlb->ASID = env->CP0_EntryHi & 0xFF;
1816     tlb->PageMask = env->CP0_PageMask;
1817     tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
1818     tlb->V0 = (env->CP0_EntryLo0 & 2) != 0;
1819     tlb->D0 = (env->CP0_EntryLo0 & 4) != 0;
1820     tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7;
1821     tlb->PFN[0] = (env->CP0_EntryLo0 >> 6) << 12;
1822     tlb->V1 = (env->CP0_EntryLo1 & 2) != 0;
1823     tlb->D1 = (env->CP0_EntryLo1 & 4) != 0;
1824     tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7;
1825     tlb->PFN[1] = (env->CP0_EntryLo1 >> 6) << 12;
1826 }
1827
1828 void r4k_helper_tlbwi(CPUMIPSState *env)
1829 {
1830     r4k_tlb_t *tlb;
1831     int idx;
1832     target_ulong VPN;
1833     uint8_t ASID;
1834     bool G, V0, D0, V1, D1;
1835
1836     idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
1837     tlb = &env->tlb->mmu.r4k.tlb[idx];
1838     VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
1839 #if defined(TARGET_MIPS64)
1840     VPN &= env->SEGMask;
1841 #endif
1842     ASID = env->CP0_EntryHi & 0xff;
1843     G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
1844     V0 = (env->CP0_EntryLo0 & 2) != 0;
1845     D0 = (env->CP0_EntryLo0 & 4) != 0;
1846     V1 = (env->CP0_EntryLo1 & 2) != 0;
1847     D1 = (env->CP0_EntryLo1 & 4) != 0;
1848
1849     /* Discard cached TLB entries, unless tlbwi is just upgrading access
1850        permissions on the current entry. */
1851     if (tlb->VPN != VPN || tlb->ASID != ASID || tlb->G != G ||
1852         (tlb->V0 && !V0) || (tlb->D0 && !D0) ||
1853         (tlb->V1 && !V1) || (tlb->D1 && !D1)) {
1854         r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
1855     }
1856
1857     r4k_invalidate_tlb(env, idx, 0);
1858     r4k_fill_tlb(env, idx);
1859 }
1860
1861 void r4k_helper_tlbwr(CPUMIPSState *env)
1862 {
1863     int r = cpu_mips_get_random(env);
1864
1865     r4k_invalidate_tlb(env, r, 1);
1866     r4k_fill_tlb(env, r);
1867 }
1868
1869 void r4k_helper_tlbp(CPUMIPSState *env)
1870 {
1871     r4k_tlb_t *tlb;
1872     target_ulong mask;
1873     target_ulong tag;
1874     target_ulong VPN;
1875     uint8_t ASID;
1876     int i;
1877
1878     ASID = env->CP0_EntryHi & 0xFF;
1879     for (i = 0; i < env->tlb->nb_tlb; i++) {
1880         tlb = &env->tlb->mmu.r4k.tlb[i];
1881         /* 1k pages are not supported. */
1882         mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
1883         tag = env->CP0_EntryHi & ~mask;
1884         VPN = tlb->VPN & ~mask;
1885 #if defined(TARGET_MIPS64)
1886         tag &= env->SEGMask;
1887 #endif
1888         /* Check ASID, virtual page number & size */
1889         if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
1890             /* TLB match */
1891             env->CP0_Index = i;
1892             break;
1893         }
1894     }
1895     if (i == env->tlb->nb_tlb) {
1896         /* No match.  Discard any shadow entries, if any of them match.  */
1897         for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
1898             tlb = &env->tlb->mmu.r4k.tlb[i];
1899             /* 1k pages are not supported. */
1900             mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
1901             tag = env->CP0_EntryHi & ~mask;
1902             VPN = tlb->VPN & ~mask;
1903 #if defined(TARGET_MIPS64)
1904             tag &= env->SEGMask;
1905 #endif
1906             /* Check ASID, virtual page number & size */
1907             if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
1908                 r4k_mips_tlb_flush_extra (env, i);
1909                 break;
1910             }
1911         }
1912
1913         env->CP0_Index |= 0x80000000;
1914     }
1915 }
1916
1917 void r4k_helper_tlbr(CPUMIPSState *env)
1918 {
1919     r4k_tlb_t *tlb;
1920     uint8_t ASID;
1921     int idx;
1922
1923     ASID = env->CP0_EntryHi & 0xFF;
1924     idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
1925     tlb = &env->tlb->mmu.r4k.tlb[idx];
1926
1927     /* If this will change the current ASID, flush qemu's TLB.  */
1928     if (ASID != tlb->ASID)
1929         cpu_mips_tlb_flush (env, 1);
1930
1931     r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
1932
1933     env->CP0_EntryHi = tlb->VPN | tlb->ASID;
1934     env->CP0_PageMask = tlb->PageMask;
1935     env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) |
1936                         (tlb->C0 << 3) | (tlb->PFN[0] >> 6);
1937     env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) |
1938                         (tlb->C1 << 3) | (tlb->PFN[1] >> 6);
1939 }
1940
1941 void helper_tlbwi(CPUMIPSState *env)
1942 {
1943     env->tlb->helper_tlbwi(env);
1944 }
1945
1946 void helper_tlbwr(CPUMIPSState *env)
1947 {
1948     env->tlb->helper_tlbwr(env);
1949 }
1950
1951 void helper_tlbp(CPUMIPSState *env)
1952 {
1953     env->tlb->helper_tlbp(env);
1954 }
1955
1956 void helper_tlbr(CPUMIPSState *env)
1957 {
1958     env->tlb->helper_tlbr(env);
1959 }
1960
1961 /* Specials */
1962 target_ulong helper_di(CPUMIPSState *env)
1963 {
1964     target_ulong t0 = env->CP0_Status;
1965
1966     env->CP0_Status = t0 & ~(1 << CP0St_IE);
1967     return t0;
1968 }
1969
1970 target_ulong helper_ei(CPUMIPSState *env)
1971 {
1972     target_ulong t0 = env->CP0_Status;
1973
1974     env->CP0_Status = t0 | (1 << CP0St_IE);
1975     return t0;
1976 }
1977
1978 static void debug_pre_eret(CPUMIPSState *env)
1979 {
1980     if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
1981         qemu_log("ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
1982                 env->active_tc.PC, env->CP0_EPC);
1983         if (env->CP0_Status & (1 << CP0St_ERL))
1984             qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
1985         if (env->hflags & MIPS_HFLAG_DM)
1986             qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
1987         qemu_log("\n");
1988     }
1989 }
1990
1991 static void debug_post_eret(CPUMIPSState *env)
1992 {
1993     MIPSCPU *cpu = mips_env_get_cpu(env);
1994
1995     if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
1996         qemu_log("  =>  PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
1997                 env->active_tc.PC, env->CP0_EPC);
1998         if (env->CP0_Status & (1 << CP0St_ERL))
1999             qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
2000         if (env->hflags & MIPS_HFLAG_DM)
2001             qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
2002         switch (env->hflags & MIPS_HFLAG_KSU) {
2003         case MIPS_HFLAG_UM: qemu_log(", UM\n"); break;
2004         case MIPS_HFLAG_SM: qemu_log(", SM\n"); break;
2005         case MIPS_HFLAG_KM: qemu_log("\n"); break;
2006         default:
2007             cpu_abort(CPU(cpu), "Invalid MMU mode!\n");
2008             break;
2009         }
2010     }
2011 }
2012
2013 static void set_pc(CPUMIPSState *env, target_ulong error_pc)
2014 {
2015     env->active_tc.PC = error_pc & ~(target_ulong)1;
2016     if (error_pc & 1) {
2017         env->hflags |= MIPS_HFLAG_M16;
2018     } else {
2019         env->hflags &= ~(MIPS_HFLAG_M16);
2020     }
2021 }
2022
2023 void helper_eret(CPUMIPSState *env)
2024 {
2025     debug_pre_eret(env);
2026     if (env->CP0_Status & (1 << CP0St_ERL)) {
2027         set_pc(env, env->CP0_ErrorEPC);
2028         env->CP0_Status &= ~(1 << CP0St_ERL);
2029     } else {
2030         set_pc(env, env->CP0_EPC);
2031         env->CP0_Status &= ~(1 << CP0St_EXL);
2032     }
2033     compute_hflags(env);
2034     debug_post_eret(env);
2035     env->lladdr = 1;
2036 }
2037
2038 void helper_deret(CPUMIPSState *env)
2039 {
2040     debug_pre_eret(env);
2041     set_pc(env, env->CP0_DEPC);
2042
2043     env->hflags &= MIPS_HFLAG_DM;
2044     compute_hflags(env);
2045     debug_post_eret(env);
2046     env->lladdr = 1;
2047 }
2048 #endif /* !CONFIG_USER_ONLY */
2049
2050 target_ulong helper_rdhwr_cpunum(CPUMIPSState *env)
2051 {
2052     if ((env->hflags & MIPS_HFLAG_CP0) ||
2053         (env->CP0_HWREna & (1 << 0)))
2054         return env->CP0_EBase & 0x3ff;
2055     else
2056         helper_raise_exception(env, EXCP_RI);
2057
2058     return 0;
2059 }
2060
2061 target_ulong helper_rdhwr_synci_step(CPUMIPSState *env)
2062 {
2063     if ((env->hflags & MIPS_HFLAG_CP0) ||
2064         (env->CP0_HWREna & (1 << 1)))
2065         return env->SYNCI_Step;
2066     else
2067         helper_raise_exception(env, EXCP_RI);
2068
2069     return 0;
2070 }
2071
2072 target_ulong helper_rdhwr_cc(CPUMIPSState *env)
2073 {
2074     if ((env->hflags & MIPS_HFLAG_CP0) ||
2075         (env->CP0_HWREna & (1 << 2)))
2076         return env->CP0_Count;
2077     else
2078         helper_raise_exception(env, EXCP_RI);
2079
2080     return 0;
2081 }
2082
2083 target_ulong helper_rdhwr_ccres(CPUMIPSState *env)
2084 {
2085     if ((env->hflags & MIPS_HFLAG_CP0) ||
2086         (env->CP0_HWREna & (1 << 3)))
2087         return env->CCRes;
2088     else
2089         helper_raise_exception(env, EXCP_RI);
2090
2091     return 0;
2092 }
2093
2094 void helper_pmon(CPUMIPSState *env, int function)
2095 {
2096     function /= 2;
2097     switch (function) {
2098     case 2: /* TODO: char inbyte(int waitflag); */
2099         if (env->active_tc.gpr[4] == 0)
2100             env->active_tc.gpr[2] = -1;
2101         /* Fall through */
2102     case 11: /* TODO: char inbyte (void); */
2103         env->active_tc.gpr[2] = -1;
2104         break;
2105     case 3:
2106     case 12:
2107         printf("%c", (char)(env->active_tc.gpr[4] & 0xFF));
2108         break;
2109     case 17:
2110         break;
2111     case 158:
2112         {
2113             unsigned char *fmt = (void *)(uintptr_t)env->active_tc.gpr[4];
2114             printf("%s", fmt);
2115         }
2116         break;
2117     }
2118 }
2119
2120 void helper_wait(CPUMIPSState *env)
2121 {
2122     CPUState *cs = CPU(mips_env_get_cpu(env));
2123
2124     cs->halted = 1;
2125     cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
2126     helper_raise_exception(env, EXCP_HLT);
2127 }
2128
2129 #if !defined(CONFIG_USER_ONLY)
2130
2131 static void QEMU_NORETURN do_unaligned_access(CPUMIPSState *env,
2132                                               target_ulong addr, int is_write,
2133                                               int is_user, uintptr_t retaddr);
2134
2135 #define MMUSUFFIX _mmu
2136 #define ALIGNED_ONLY
2137
2138 #define SHIFT 0
2139 #include "exec/softmmu_template.h"
2140
2141 #define SHIFT 1
2142 #include "exec/softmmu_template.h"
2143
2144 #define SHIFT 2
2145 #include "exec/softmmu_template.h"
2146
2147 #define SHIFT 3
2148 #include "exec/softmmu_template.h"
2149
2150 static void do_unaligned_access(CPUMIPSState *env, target_ulong addr,
2151                                 int is_write, int is_user, uintptr_t retaddr)
2152 {
2153     env->CP0_BadVAddr = addr;
2154     do_raise_exception(env, (is_write == 1) ? EXCP_AdES : EXCP_AdEL, retaddr);
2155 }
2156
2157 void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
2158               uintptr_t retaddr)
2159 {
2160     int ret;
2161
2162     ret = mips_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
2163     if (ret) {
2164         MIPSCPU *cpu = MIPS_CPU(cs);
2165         CPUMIPSState *env = &cpu->env;
2166
2167         do_raise_exception_err(env, cs->exception_index,
2168                                env->error_code, retaddr);
2169     }
2170 }
2171
2172 void mips_cpu_unassigned_access(CPUState *cs, hwaddr addr,
2173                                 bool is_write, bool is_exec, int unused,
2174                                 unsigned size)
2175 {
2176     MIPSCPU *cpu = MIPS_CPU(cs);
2177     CPUMIPSState *env = &cpu->env;
2178
2179     if (is_exec) {
2180         helper_raise_exception(env, EXCP_IBE);
2181     } else {
2182         helper_raise_exception(env, EXCP_DBE);
2183     }
2184 }
2185 #endif /* !CONFIG_USER_ONLY */
2186
2187 /* Complex FPU operations which may need stack space. */
2188
2189 #define FLOAT_TWO32 make_float32(1 << 30)
2190 #define FLOAT_TWO64 make_float64(1ULL << 62)
2191 #define FP_TO_INT32_OVERFLOW 0x7fffffff
2192 #define FP_TO_INT64_OVERFLOW 0x7fffffffffffffffULL
2193
2194 /* convert MIPS rounding mode in FCR31 to IEEE library */
2195 static unsigned int ieee_rm[] = {
2196     float_round_nearest_even,
2197     float_round_to_zero,
2198     float_round_up,
2199     float_round_down
2200 };
2201
2202 static inline void restore_rounding_mode(CPUMIPSState *env)
2203 {
2204     set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3],
2205                             &env->active_fpu.fp_status);
2206 }
2207
2208 static inline void restore_flush_mode(CPUMIPSState *env)
2209 {
2210     set_flush_to_zero((env->active_fpu.fcr31 & (1 << 24)) != 0,
2211                       &env->active_fpu.fp_status);
2212 }
2213
2214 target_ulong helper_cfc1(CPUMIPSState *env, uint32_t reg)
2215 {
2216     target_ulong arg1 = 0;
2217
2218     switch (reg) {
2219     case 0:
2220         arg1 = (int32_t)env->active_fpu.fcr0;
2221         break;
2222     case 1:
2223         /* UFR Support - Read Status FR */
2224         if (env->active_fpu.fcr0 & (1 << FCR0_UFRP)) {
2225             if (env->CP0_Config5 & (1 << CP0C5_UFR)) {
2226                 arg1 = (int32_t)
2227                        ((env->CP0_Status & (1  << CP0St_FR)) >> CP0St_FR);
2228             } else {
2229                 helper_raise_exception(env, EXCP_RI);
2230             }
2231         }
2232         break;
2233     case 25:
2234         arg1 = ((env->active_fpu.fcr31 >> 24) & 0xfe) | ((env->active_fpu.fcr31 >> 23) & 0x1);
2235         break;
2236     case 26:
2237         arg1 = env->active_fpu.fcr31 & 0x0003f07c;
2238         break;
2239     case 28:
2240         arg1 = (env->active_fpu.fcr31 & 0x00000f83) | ((env->active_fpu.fcr31 >> 22) & 0x4);
2241         break;
2242     default:
2243         arg1 = (int32_t)env->active_fpu.fcr31;
2244         break;
2245     }
2246
2247     return arg1;
2248 }
2249
2250 void helper_ctc1(CPUMIPSState *env, target_ulong arg1, uint32_t fs, uint32_t rt)
2251 {
2252     switch (fs) {
2253     case 1:
2254         /* UFR Alias - Reset Status FR */
2255         if (!((env->active_fpu.fcr0 & (1 << FCR0_UFRP)) && (rt == 0))) {
2256             return;
2257         }
2258         if (env->CP0_Config5 & (1 << CP0C5_UFR)) {
2259             env->CP0_Status &= ~(1 << CP0St_FR);
2260             compute_hflags(env);
2261         } else {
2262             helper_raise_exception(env, EXCP_RI);
2263         }
2264         break;
2265     case 4:
2266         /* UNFR Alias - Set Status FR */
2267         if (!((env->active_fpu.fcr0 & (1 << FCR0_UFRP)) && (rt == 0))) {
2268             return;
2269         }
2270         if (env->CP0_Config5 & (1 << CP0C5_UFR)) {
2271             env->CP0_Status |= (1 << CP0St_FR);
2272             compute_hflags(env);
2273         } else {
2274             helper_raise_exception(env, EXCP_RI);
2275         }
2276         break;
2277     case 25:
2278         if (arg1 & 0xffffff00)
2279             return;
2280         env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0x017fffff) | ((arg1 & 0xfe) << 24) |
2281                      ((arg1 & 0x1) << 23);
2282         break;
2283     case 26:
2284         if (arg1 & 0x007c0000)
2285             return;
2286         env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0xfffc0f83) | (arg1 & 0x0003f07c);
2287         break;
2288     case 28:
2289         if (arg1 & 0x007c0000)
2290             return;
2291         env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0xfefff07c) | (arg1 & 0x00000f83) |
2292                      ((arg1 & 0x4) << 22);
2293         break;
2294     case 31:
2295         if (arg1 & 0x007c0000)
2296             return;
2297         env->active_fpu.fcr31 = arg1;
2298         break;
2299     default:
2300         return;
2301     }
2302     /* set rounding mode */
2303     restore_rounding_mode(env);
2304     /* set flush-to-zero mode */
2305     restore_flush_mode(env);
2306     set_float_exception_flags(0, &env->active_fpu.fp_status);
2307     if ((GET_FP_ENABLE(env->active_fpu.fcr31) | 0x20) & GET_FP_CAUSE(env->active_fpu.fcr31))
2308         do_raise_exception(env, EXCP_FPE, GETPC());
2309 }
2310
2311 static inline int ieee_ex_to_mips(int xcpt)
2312 {
2313     int ret = 0;
2314     if (xcpt) {
2315         if (xcpt & float_flag_invalid) {
2316             ret |= FP_INVALID;
2317         }
2318         if (xcpt & float_flag_overflow) {
2319             ret |= FP_OVERFLOW;
2320         }
2321         if (xcpt & float_flag_underflow) {
2322             ret |= FP_UNDERFLOW;
2323         }
2324         if (xcpt & float_flag_divbyzero) {
2325             ret |= FP_DIV0;
2326         }
2327         if (xcpt & float_flag_inexact) {
2328             ret |= FP_INEXACT;
2329         }
2330     }
2331     return ret;
2332 }
2333
2334 static inline void update_fcr31(CPUMIPSState *env, uintptr_t pc)
2335 {
2336     int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->active_fpu.fp_status));
2337
2338     SET_FP_CAUSE(env->active_fpu.fcr31, tmp);
2339
2340     if (tmp) {
2341         set_float_exception_flags(0, &env->active_fpu.fp_status);
2342
2343         if (GET_FP_ENABLE(env->active_fpu.fcr31) & tmp) {
2344             do_raise_exception(env, EXCP_FPE, pc);
2345         } else {
2346             UPDATE_FP_FLAGS(env->active_fpu.fcr31, tmp);
2347         }
2348     }
2349 }
2350
2351 /* Float support.
2352    Single precition routines have a "s" suffix, double precision a
2353    "d" suffix, 32bit integer "w", 64bit integer "l", paired single "ps",
2354    paired single lower "pl", paired single upper "pu".  */
2355
2356 /* unary operations, modifying fp status  */
2357 uint64_t helper_float_sqrt_d(CPUMIPSState *env, uint64_t fdt0)
2358 {
2359     fdt0 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2360     update_fcr31(env, GETPC());
2361     return fdt0;
2362 }
2363
2364 uint32_t helper_float_sqrt_s(CPUMIPSState *env, uint32_t fst0)
2365 {
2366     fst0 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2367     update_fcr31(env, GETPC());
2368     return fst0;
2369 }
2370
2371 uint64_t helper_float_cvtd_s(CPUMIPSState *env, uint32_t fst0)
2372 {
2373     uint64_t fdt2;
2374
2375     fdt2 = float32_to_float64(fst0, &env->active_fpu.fp_status);
2376     update_fcr31(env, GETPC());
2377     return fdt2;
2378 }
2379
2380 uint64_t helper_float_cvtd_w(CPUMIPSState *env, uint32_t wt0)
2381 {
2382     uint64_t fdt2;
2383
2384     fdt2 = int32_to_float64(wt0, &env->active_fpu.fp_status);
2385     update_fcr31(env, GETPC());
2386     return fdt2;
2387 }
2388
2389 uint64_t helper_float_cvtd_l(CPUMIPSState *env, uint64_t dt0)
2390 {
2391     uint64_t fdt2;
2392
2393     fdt2 = int64_to_float64(dt0, &env->active_fpu.fp_status);
2394     update_fcr31(env, GETPC());
2395     return fdt2;
2396 }
2397
2398 uint64_t helper_float_cvtl_d(CPUMIPSState *env, uint64_t fdt0)
2399 {
2400     uint64_t dt2;
2401
2402     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2403     if (get_float_exception_flags(&env->active_fpu.fp_status)
2404         & (float_flag_invalid | float_flag_overflow)) {
2405         dt2 = FP_TO_INT64_OVERFLOW;
2406     }
2407     update_fcr31(env, GETPC());
2408     return dt2;
2409 }
2410
2411 uint64_t helper_float_cvtl_s(CPUMIPSState *env, uint32_t fst0)
2412 {
2413     uint64_t dt2;
2414
2415     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2416     if (get_float_exception_flags(&env->active_fpu.fp_status)
2417         & (float_flag_invalid | float_flag_overflow)) {
2418         dt2 = FP_TO_INT64_OVERFLOW;
2419     }
2420     update_fcr31(env, GETPC());
2421     return dt2;
2422 }
2423
2424 uint64_t helper_float_cvtps_pw(CPUMIPSState *env, uint64_t dt0)
2425 {
2426     uint32_t fst2;
2427     uint32_t fsth2;
2428
2429     fst2 = int32_to_float32(dt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2430     fsth2 = int32_to_float32(dt0 >> 32, &env->active_fpu.fp_status);
2431     update_fcr31(env, GETPC());
2432     return ((uint64_t)fsth2 << 32) | fst2;
2433 }
2434
2435 uint64_t helper_float_cvtpw_ps(CPUMIPSState *env, uint64_t fdt0)
2436 {
2437     uint32_t wt2;
2438     uint32_t wth2;
2439     int excp, excph;
2440
2441     wt2 = float32_to_int32(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2442     excp = get_float_exception_flags(&env->active_fpu.fp_status);
2443     if (excp & (float_flag_overflow | float_flag_invalid)) {
2444         wt2 = FP_TO_INT32_OVERFLOW;
2445     }
2446
2447     set_float_exception_flags(0, &env->active_fpu.fp_status);
2448     wth2 = float32_to_int32(fdt0 >> 32, &env->active_fpu.fp_status);
2449     excph = get_float_exception_flags(&env->active_fpu.fp_status);
2450     if (excph & (float_flag_overflow | float_flag_invalid)) {
2451         wth2 = FP_TO_INT32_OVERFLOW;
2452     }
2453
2454     set_float_exception_flags(excp | excph, &env->active_fpu.fp_status);
2455     update_fcr31(env, GETPC());
2456
2457     return ((uint64_t)wth2 << 32) | wt2;
2458 }
2459
2460 uint32_t helper_float_cvts_d(CPUMIPSState *env, uint64_t fdt0)
2461 {
2462     uint32_t fst2;
2463
2464     fst2 = float64_to_float32(fdt0, &env->active_fpu.fp_status);
2465     update_fcr31(env, GETPC());
2466     return fst2;
2467 }
2468
2469 uint32_t helper_float_cvts_w(CPUMIPSState *env, uint32_t wt0)
2470 {
2471     uint32_t fst2;
2472
2473     fst2 = int32_to_float32(wt0, &env->active_fpu.fp_status);
2474     update_fcr31(env, GETPC());
2475     return fst2;
2476 }
2477
2478 uint32_t helper_float_cvts_l(CPUMIPSState *env, uint64_t dt0)
2479 {
2480     uint32_t fst2;
2481
2482     fst2 = int64_to_float32(dt0, &env->active_fpu.fp_status);
2483     update_fcr31(env, GETPC());
2484     return fst2;
2485 }
2486
2487 uint32_t helper_float_cvts_pl(CPUMIPSState *env, uint32_t wt0)
2488 {
2489     uint32_t wt2;
2490
2491     wt2 = wt0;
2492     update_fcr31(env, GETPC());
2493     return wt2;
2494 }
2495
2496 uint32_t helper_float_cvts_pu(CPUMIPSState *env, uint32_t wth0)
2497 {
2498     uint32_t wt2;
2499
2500     wt2 = wth0;
2501     update_fcr31(env, GETPC());
2502     return wt2;
2503 }
2504
2505 uint32_t helper_float_cvtw_s(CPUMIPSState *env, uint32_t fst0)
2506 {
2507     uint32_t wt2;
2508
2509     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2510     update_fcr31(env, GETPC());
2511     if (get_float_exception_flags(&env->active_fpu.fp_status)
2512         & (float_flag_invalid | float_flag_overflow)) {
2513         wt2 = FP_TO_INT32_OVERFLOW;
2514     }
2515     return wt2;
2516 }
2517
2518 uint32_t helper_float_cvtw_d(CPUMIPSState *env, uint64_t fdt0)
2519 {
2520     uint32_t wt2;
2521
2522     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2523     if (get_float_exception_flags(&env->active_fpu.fp_status)
2524         & (float_flag_invalid | float_flag_overflow)) {
2525         wt2 = FP_TO_INT32_OVERFLOW;
2526     }
2527     update_fcr31(env, GETPC());
2528     return wt2;
2529 }
2530
2531 uint64_t helper_float_roundl_d(CPUMIPSState *env, uint64_t fdt0)
2532 {
2533     uint64_t dt2;
2534
2535     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2536     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2537     restore_rounding_mode(env);
2538     if (get_float_exception_flags(&env->active_fpu.fp_status)
2539         & (float_flag_invalid | float_flag_overflow)) {
2540         dt2 = FP_TO_INT64_OVERFLOW;
2541     }
2542     update_fcr31(env, GETPC());
2543     return dt2;
2544 }
2545
2546 uint64_t helper_float_roundl_s(CPUMIPSState *env, uint32_t fst0)
2547 {
2548     uint64_t dt2;
2549
2550     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2551     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2552     restore_rounding_mode(env);
2553     if (get_float_exception_flags(&env->active_fpu.fp_status)
2554         & (float_flag_invalid | float_flag_overflow)) {
2555         dt2 = FP_TO_INT64_OVERFLOW;
2556     }
2557     update_fcr31(env, GETPC());
2558     return dt2;
2559 }
2560
2561 uint32_t helper_float_roundw_d(CPUMIPSState *env, uint64_t fdt0)
2562 {
2563     uint32_t wt2;
2564
2565     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2566     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2567     restore_rounding_mode(env);
2568     if (get_float_exception_flags(&env->active_fpu.fp_status)
2569         & (float_flag_invalid | float_flag_overflow)) {
2570         wt2 = FP_TO_INT32_OVERFLOW;
2571     }
2572     update_fcr31(env, GETPC());
2573     return wt2;
2574 }
2575
2576 uint32_t helper_float_roundw_s(CPUMIPSState *env, uint32_t fst0)
2577 {
2578     uint32_t wt2;
2579
2580     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2581     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2582     restore_rounding_mode(env);
2583     if (get_float_exception_flags(&env->active_fpu.fp_status)
2584         & (float_flag_invalid | float_flag_overflow)) {
2585         wt2 = FP_TO_INT32_OVERFLOW;
2586     }
2587     update_fcr31(env, GETPC());
2588     return wt2;
2589 }
2590
2591 uint64_t helper_float_truncl_d(CPUMIPSState *env, uint64_t fdt0)
2592 {
2593     uint64_t dt2;
2594
2595     dt2 = float64_to_int64_round_to_zero(fdt0, &env->active_fpu.fp_status);
2596     if (get_float_exception_flags(&env->active_fpu.fp_status)
2597         & (float_flag_invalid | float_flag_overflow)) {
2598         dt2 = FP_TO_INT64_OVERFLOW;
2599     }
2600     update_fcr31(env, GETPC());
2601     return dt2;
2602 }
2603
2604 uint64_t helper_float_truncl_s(CPUMIPSState *env, uint32_t fst0)
2605 {
2606     uint64_t dt2;
2607
2608     dt2 = float32_to_int64_round_to_zero(fst0, &env->active_fpu.fp_status);
2609     if (get_float_exception_flags(&env->active_fpu.fp_status)
2610         & (float_flag_invalid | float_flag_overflow)) {
2611         dt2 = FP_TO_INT64_OVERFLOW;
2612     }
2613     update_fcr31(env, GETPC());
2614     return dt2;
2615 }
2616
2617 uint32_t helper_float_truncw_d(CPUMIPSState *env, uint64_t fdt0)
2618 {
2619     uint32_t wt2;
2620
2621     wt2 = float64_to_int32_round_to_zero(fdt0, &env->active_fpu.fp_status);
2622     if (get_float_exception_flags(&env->active_fpu.fp_status)
2623         & (float_flag_invalid | float_flag_overflow)) {
2624         wt2 = FP_TO_INT32_OVERFLOW;
2625     }
2626     update_fcr31(env, GETPC());
2627     return wt2;
2628 }
2629
2630 uint32_t helper_float_truncw_s(CPUMIPSState *env, uint32_t fst0)
2631 {
2632     uint32_t wt2;
2633
2634     wt2 = float32_to_int32_round_to_zero(fst0, &env->active_fpu.fp_status);
2635     if (get_float_exception_flags(&env->active_fpu.fp_status)
2636         & (float_flag_invalid | float_flag_overflow)) {
2637         wt2 = FP_TO_INT32_OVERFLOW;
2638     }
2639     update_fcr31(env, GETPC());
2640     return wt2;
2641 }
2642
2643 uint64_t helper_float_ceill_d(CPUMIPSState *env, uint64_t fdt0)
2644 {
2645     uint64_t dt2;
2646
2647     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2648     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2649     restore_rounding_mode(env);
2650     if (get_float_exception_flags(&env->active_fpu.fp_status)
2651         & (float_flag_invalid | float_flag_overflow)) {
2652         dt2 = FP_TO_INT64_OVERFLOW;
2653     }
2654     update_fcr31(env, GETPC());
2655     return dt2;
2656 }
2657
2658 uint64_t helper_float_ceill_s(CPUMIPSState *env, uint32_t fst0)
2659 {
2660     uint64_t dt2;
2661
2662     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2663     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2664     restore_rounding_mode(env);
2665     if (get_float_exception_flags(&env->active_fpu.fp_status)
2666         & (float_flag_invalid | float_flag_overflow)) {
2667         dt2 = FP_TO_INT64_OVERFLOW;
2668     }
2669     update_fcr31(env, GETPC());
2670     return dt2;
2671 }
2672
2673 uint32_t helper_float_ceilw_d(CPUMIPSState *env, uint64_t fdt0)
2674 {
2675     uint32_t wt2;
2676
2677     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2678     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2679     restore_rounding_mode(env);
2680     if (get_float_exception_flags(&env->active_fpu.fp_status)
2681         & (float_flag_invalid | float_flag_overflow)) {
2682         wt2 = FP_TO_INT32_OVERFLOW;
2683     }
2684     update_fcr31(env, GETPC());
2685     return wt2;
2686 }
2687
2688 uint32_t helper_float_ceilw_s(CPUMIPSState *env, uint32_t fst0)
2689 {
2690     uint32_t wt2;
2691
2692     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2693     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2694     restore_rounding_mode(env);
2695     if (get_float_exception_flags(&env->active_fpu.fp_status)
2696         & (float_flag_invalid | float_flag_overflow)) {
2697         wt2 = FP_TO_INT32_OVERFLOW;
2698     }
2699     update_fcr31(env, GETPC());
2700     return wt2;
2701 }
2702
2703 uint64_t helper_float_floorl_d(CPUMIPSState *env, uint64_t fdt0)
2704 {
2705     uint64_t dt2;
2706
2707     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2708     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2709     restore_rounding_mode(env);
2710     if (get_float_exception_flags(&env->active_fpu.fp_status)
2711         & (float_flag_invalid | float_flag_overflow)) {
2712         dt2 = FP_TO_INT64_OVERFLOW;
2713     }
2714     update_fcr31(env, GETPC());
2715     return dt2;
2716 }
2717
2718 uint64_t helper_float_floorl_s(CPUMIPSState *env, uint32_t fst0)
2719 {
2720     uint64_t dt2;
2721
2722     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2723     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2724     restore_rounding_mode(env);
2725     if (get_float_exception_flags(&env->active_fpu.fp_status)
2726         & (float_flag_invalid | float_flag_overflow)) {
2727         dt2 = FP_TO_INT64_OVERFLOW;
2728     }
2729     update_fcr31(env, GETPC());
2730     return dt2;
2731 }
2732
2733 uint32_t helper_float_floorw_d(CPUMIPSState *env, uint64_t fdt0)
2734 {
2735     uint32_t wt2;
2736
2737     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2738     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2739     restore_rounding_mode(env);
2740     if (get_float_exception_flags(&env->active_fpu.fp_status)
2741         & (float_flag_invalid | float_flag_overflow)) {
2742         wt2 = FP_TO_INT32_OVERFLOW;
2743     }
2744     update_fcr31(env, GETPC());
2745     return wt2;
2746 }
2747
2748 uint32_t helper_float_floorw_s(CPUMIPSState *env, uint32_t fst0)
2749 {
2750     uint32_t wt2;
2751
2752     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2753     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2754     restore_rounding_mode(env);
2755     if (get_float_exception_flags(&env->active_fpu.fp_status)
2756         & (float_flag_invalid | float_flag_overflow)) {
2757         wt2 = FP_TO_INT32_OVERFLOW;
2758     }
2759     update_fcr31(env, GETPC());
2760     return wt2;
2761 }
2762
2763 /* unary operations, not modifying fp status  */
2764 #define FLOAT_UNOP(name)                                       \
2765 uint64_t helper_float_ ## name ## _d(uint64_t fdt0)                \
2766 {                                                              \
2767     return float64_ ## name(fdt0);                             \
2768 }                                                              \
2769 uint32_t helper_float_ ## name ## _s(uint32_t fst0)                \
2770 {                                                              \
2771     return float32_ ## name(fst0);                             \
2772 }                                                              \
2773 uint64_t helper_float_ ## name ## _ps(uint64_t fdt0)               \
2774 {                                                              \
2775     uint32_t wt0;                                              \
2776     uint32_t wth0;                                             \
2777                                                                \
2778     wt0 = float32_ ## name(fdt0 & 0XFFFFFFFF);                 \
2779     wth0 = float32_ ## name(fdt0 >> 32);                       \
2780     return ((uint64_t)wth0 << 32) | wt0;                       \
2781 }
2782 FLOAT_UNOP(abs)
2783 FLOAT_UNOP(chs)
2784 #undef FLOAT_UNOP
2785
2786 /* MIPS specific unary operations */
2787 uint64_t helper_float_recip_d(CPUMIPSState *env, uint64_t fdt0)
2788 {
2789     uint64_t fdt2;
2790
2791     fdt2 = float64_div(float64_one, fdt0, &env->active_fpu.fp_status);
2792     update_fcr31(env, GETPC());
2793     return fdt2;
2794 }
2795
2796 uint32_t helper_float_recip_s(CPUMIPSState *env, uint32_t fst0)
2797 {
2798     uint32_t fst2;
2799
2800     fst2 = float32_div(float32_one, fst0, &env->active_fpu.fp_status);
2801     update_fcr31(env, GETPC());
2802     return fst2;
2803 }
2804
2805 uint64_t helper_float_rsqrt_d(CPUMIPSState *env, uint64_t fdt0)
2806 {
2807     uint64_t fdt2;
2808
2809     fdt2 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2810     fdt2 = float64_div(float64_one, fdt2, &env->active_fpu.fp_status);
2811     update_fcr31(env, GETPC());
2812     return fdt2;
2813 }
2814
2815 uint32_t helper_float_rsqrt_s(CPUMIPSState *env, uint32_t fst0)
2816 {
2817     uint32_t fst2;
2818
2819     fst2 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2820     fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
2821     update_fcr31(env, GETPC());
2822     return fst2;
2823 }
2824
2825 uint64_t helper_float_recip1_d(CPUMIPSState *env, uint64_t fdt0)
2826 {
2827     uint64_t fdt2;
2828
2829     fdt2 = float64_div(float64_one, fdt0, &env->active_fpu.fp_status);
2830     update_fcr31(env, GETPC());
2831     return fdt2;
2832 }
2833
2834 uint32_t helper_float_recip1_s(CPUMIPSState *env, uint32_t fst0)
2835 {
2836     uint32_t fst2;
2837
2838     fst2 = float32_div(float32_one, fst0, &env->active_fpu.fp_status);
2839     update_fcr31(env, GETPC());
2840     return fst2;
2841 }
2842
2843 uint64_t helper_float_recip1_ps(CPUMIPSState *env, uint64_t fdt0)
2844 {
2845     uint32_t fst2;
2846     uint32_t fsth2;
2847
2848     fst2 = float32_div(float32_one, fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2849     fsth2 = float32_div(float32_one, fdt0 >> 32, &env->active_fpu.fp_status);
2850     update_fcr31(env, GETPC());
2851     return ((uint64_t)fsth2 << 32) | fst2;
2852 }
2853
2854 uint64_t helper_float_rsqrt1_d(CPUMIPSState *env, uint64_t fdt0)
2855 {
2856     uint64_t fdt2;
2857
2858     fdt2 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2859     fdt2 = float64_div(float64_one, fdt2, &env->active_fpu.fp_status);
2860     update_fcr31(env, GETPC());
2861     return fdt2;
2862 }
2863
2864 uint32_t helper_float_rsqrt1_s(CPUMIPSState *env, uint32_t fst0)
2865 {
2866     uint32_t fst2;
2867
2868     fst2 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2869     fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
2870     update_fcr31(env, GETPC());
2871     return fst2;
2872 }
2873
2874 uint64_t helper_float_rsqrt1_ps(CPUMIPSState *env, uint64_t fdt0)
2875 {
2876     uint32_t fst2;
2877     uint32_t fsth2;
2878
2879     fst2 = float32_sqrt(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2880     fsth2 = float32_sqrt(fdt0 >> 32, &env->active_fpu.fp_status);
2881     fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
2882     fsth2 = float32_div(float32_one, fsth2, &env->active_fpu.fp_status);
2883     update_fcr31(env, GETPC());
2884     return ((uint64_t)fsth2 << 32) | fst2;
2885 }
2886
2887 #define FLOAT_OP(name, p) void helper_float_##name##_##p(CPUMIPSState *env)
2888
2889 /* binary operations */
2890 #define FLOAT_BINOP(name)                                          \
2891 uint64_t helper_float_ ## name ## _d(CPUMIPSState *env,            \
2892                                      uint64_t fdt0, uint64_t fdt1) \
2893 {                                                                  \
2894     uint64_t dt2;                                                  \
2895                                                                    \
2896     dt2 = float64_ ## name (fdt0, fdt1, &env->active_fpu.fp_status);     \
2897     update_fcr31(env, GETPC());                                    \
2898     return dt2;                                                    \
2899 }                                                                  \
2900                                                                    \
2901 uint32_t helper_float_ ## name ## _s(CPUMIPSState *env,            \
2902                                      uint32_t fst0, uint32_t fst1) \
2903 {                                                                  \
2904     uint32_t wt2;                                                  \
2905                                                                    \
2906     wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status);     \
2907     update_fcr31(env, GETPC());                                    \
2908     return wt2;                                                    \
2909 }                                                                  \
2910                                                                    \
2911 uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env,           \
2912                                       uint64_t fdt0,               \
2913                                       uint64_t fdt1)               \
2914 {                                                                  \
2915     uint32_t fst0 = fdt0 & 0XFFFFFFFF;                             \
2916     uint32_t fsth0 = fdt0 >> 32;                                   \
2917     uint32_t fst1 = fdt1 & 0XFFFFFFFF;                             \
2918     uint32_t fsth1 = fdt1 >> 32;                                   \
2919     uint32_t wt2;                                                  \
2920     uint32_t wth2;                                                 \
2921                                                                    \
2922     wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status);     \
2923     wth2 = float32_ ## name (fsth0, fsth1, &env->active_fpu.fp_status);  \
2924     update_fcr31(env, GETPC());                                    \
2925     return ((uint64_t)wth2 << 32) | wt2;                           \
2926 }
2927
2928 FLOAT_BINOP(add)
2929 FLOAT_BINOP(sub)
2930 FLOAT_BINOP(mul)
2931 FLOAT_BINOP(div)
2932 #undef FLOAT_BINOP
2933
2934 #define UNFUSED_FMA(prefix, a, b, c, flags)                          \
2935 {                                                                    \
2936     a = prefix##_mul(a, b, &env->active_fpu.fp_status);              \
2937     if ((flags) & float_muladd_negate_c) {                           \
2938         a = prefix##_sub(a, c, &env->active_fpu.fp_status);          \
2939     } else {                                                         \
2940         a = prefix##_add(a, c, &env->active_fpu.fp_status);          \
2941     }                                                                \
2942     if ((flags) & float_muladd_negate_result) {                      \
2943         a = prefix##_chs(a);                                         \
2944     }                                                                \
2945 }
2946
2947 /* FMA based operations */
2948 #define FLOAT_FMA(name, type)                                        \
2949 uint64_t helper_float_ ## name ## _d(CPUMIPSState *env,              \
2950                                      uint64_t fdt0, uint64_t fdt1,   \
2951                                      uint64_t fdt2)                  \
2952 {                                                                    \
2953     UNFUSED_FMA(float64, fdt0, fdt1, fdt2, type);                    \
2954     update_fcr31(env, GETPC());                                      \
2955     return fdt0;                                                     \
2956 }                                                                    \
2957                                                                      \
2958 uint32_t helper_float_ ## name ## _s(CPUMIPSState *env,              \
2959                                      uint32_t fst0, uint32_t fst1,   \
2960                                      uint32_t fst2)                  \
2961 {                                                                    \
2962     UNFUSED_FMA(float32, fst0, fst1, fst2, type);                    \
2963     update_fcr31(env, GETPC());                                      \
2964     return fst0;                                                     \
2965 }                                                                    \
2966                                                                      \
2967 uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env,             \
2968                                       uint64_t fdt0, uint64_t fdt1,  \
2969                                       uint64_t fdt2)                 \
2970 {                                                                    \
2971     uint32_t fst0 = fdt0 & 0XFFFFFFFF;                               \
2972     uint32_t fsth0 = fdt0 >> 32;                                     \
2973     uint32_t fst1 = fdt1 & 0XFFFFFFFF;                               \
2974     uint32_t fsth1 = fdt1 >> 32;                                     \
2975     uint32_t fst2 = fdt2 & 0XFFFFFFFF;                               \
2976     uint32_t fsth2 = fdt2 >> 32;                                     \
2977                                                                      \
2978     UNFUSED_FMA(float32, fst0, fst1, fst2, type);                    \
2979     UNFUSED_FMA(float32, fsth0, fsth1, fsth2, type);                 \
2980     update_fcr31(env, GETPC());                                      \
2981     return ((uint64_t)fsth0 << 32) | fst0;                           \
2982 }
2983 FLOAT_FMA(madd, 0)
2984 FLOAT_FMA(msub, float_muladd_negate_c)
2985 FLOAT_FMA(nmadd, float_muladd_negate_result)
2986 FLOAT_FMA(nmsub, float_muladd_negate_result | float_muladd_negate_c)
2987 #undef FLOAT_FMA
2988
2989 /* MIPS specific binary operations */
2990 uint64_t helper_float_recip2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
2991 {
2992     fdt2 = float64_mul(fdt0, fdt2, &env->active_fpu.fp_status);
2993     fdt2 = float64_chs(float64_sub(fdt2, float64_one, &env->active_fpu.fp_status));
2994     update_fcr31(env, GETPC());
2995     return fdt2;
2996 }
2997
2998 uint32_t helper_float_recip2_s(CPUMIPSState *env, uint32_t fst0, uint32_t fst2)
2999 {
3000     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3001     fst2 = float32_chs(float32_sub(fst2, float32_one, &env->active_fpu.fp_status));
3002     update_fcr31(env, GETPC());
3003     return fst2;
3004 }
3005
3006 uint64_t helper_float_recip2_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3007 {
3008     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3009     uint32_t fsth0 = fdt0 >> 32;
3010     uint32_t fst2 = fdt2 & 0XFFFFFFFF;
3011     uint32_t fsth2 = fdt2 >> 32;
3012
3013     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3014     fsth2 = float32_mul(fsth0, fsth2, &env->active_fpu.fp_status);
3015     fst2 = float32_chs(float32_sub(fst2, float32_one, &env->active_fpu.fp_status));
3016     fsth2 = float32_chs(float32_sub(fsth2, float32_one, &env->active_fpu.fp_status));
3017     update_fcr31(env, GETPC());
3018     return ((uint64_t)fsth2 << 32) | fst2;
3019 }
3020
3021 uint64_t helper_float_rsqrt2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3022 {
3023     fdt2 = float64_mul(fdt0, fdt2, &env->active_fpu.fp_status);
3024     fdt2 = float64_sub(fdt2, float64_one, &env->active_fpu.fp_status);
3025     fdt2 = float64_chs(float64_div(fdt2, FLOAT_TWO64, &env->active_fpu.fp_status));
3026     update_fcr31(env, GETPC());
3027     return fdt2;
3028 }
3029
3030 uint32_t helper_float_rsqrt2_s(CPUMIPSState *env, uint32_t fst0, uint32_t fst2)
3031 {
3032     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3033     fst2 = float32_sub(fst2, float32_one, &env->active_fpu.fp_status);
3034     fst2 = float32_chs(float32_div(fst2, FLOAT_TWO32, &env->active_fpu.fp_status));
3035     update_fcr31(env, GETPC());
3036     return fst2;
3037 }
3038
3039 uint64_t helper_float_rsqrt2_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
3040 {
3041     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3042     uint32_t fsth0 = fdt0 >> 32;
3043     uint32_t fst2 = fdt2 & 0XFFFFFFFF;
3044     uint32_t fsth2 = fdt2 >> 32;
3045
3046     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
3047     fsth2 = float32_mul(fsth0, fsth2, &env->active_fpu.fp_status);
3048     fst2 = float32_sub(fst2, float32_one, &env->active_fpu.fp_status);
3049     fsth2 = float32_sub(fsth2, float32_one, &env->active_fpu.fp_status);
3050     fst2 = float32_chs(float32_div(fst2, FLOAT_TWO32, &env->active_fpu.fp_status));
3051     fsth2 = float32_chs(float32_div(fsth2, FLOAT_TWO32, &env->active_fpu.fp_status));
3052     update_fcr31(env, GETPC());
3053     return ((uint64_t)fsth2 << 32) | fst2;
3054 }
3055
3056 uint64_t helper_float_addr_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt1)
3057 {
3058     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3059     uint32_t fsth0 = fdt0 >> 32;
3060     uint32_t fst1 = fdt1 & 0XFFFFFFFF;
3061     uint32_t fsth1 = fdt1 >> 32;
3062     uint32_t fst2;
3063     uint32_t fsth2;
3064
3065     fst2 = float32_add (fst0, fsth0, &env->active_fpu.fp_status);
3066     fsth2 = float32_add (fst1, fsth1, &env->active_fpu.fp_status);
3067     update_fcr31(env, GETPC());
3068     return ((uint64_t)fsth2 << 32) | fst2;
3069 }
3070
3071 uint64_t helper_float_mulr_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt1)
3072 {
3073     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3074     uint32_t fsth0 = fdt0 >> 32;
3075     uint32_t fst1 = fdt1 & 0XFFFFFFFF;
3076     uint32_t fsth1 = fdt1 >> 32;
3077     uint32_t fst2;
3078     uint32_t fsth2;
3079
3080     fst2 = float32_mul (fst0, fsth0, &env->active_fpu.fp_status);
3081     fsth2 = float32_mul (fst1, fsth1, &env->active_fpu.fp_status);
3082     update_fcr31(env, GETPC());
3083     return ((uint64_t)fsth2 << 32) | fst2;
3084 }
3085
3086 /* compare operations */
3087 #define FOP_COND_D(op, cond)                                   \
3088 void helper_cmp_d_ ## op(CPUMIPSState *env, uint64_t fdt0,     \
3089                          uint64_t fdt1, int cc)                \
3090 {                                                              \
3091     int c;                                                     \
3092     c = cond;                                                  \
3093     update_fcr31(env, GETPC());                                \
3094     if (c)                                                     \
3095         SET_FP_COND(cc, env->active_fpu);                      \
3096     else                                                       \
3097         CLEAR_FP_COND(cc, env->active_fpu);                    \
3098 }                                                              \
3099 void helper_cmpabs_d_ ## op(CPUMIPSState *env, uint64_t fdt0,  \
3100                             uint64_t fdt1, int cc)             \
3101 {                                                              \
3102     int c;                                                     \
3103     fdt0 = float64_abs(fdt0);                                  \
3104     fdt1 = float64_abs(fdt1);                                  \
3105     c = cond;                                                  \
3106     update_fcr31(env, GETPC());                                \
3107     if (c)                                                     \
3108         SET_FP_COND(cc, env->active_fpu);                      \
3109     else                                                       \
3110         CLEAR_FP_COND(cc, env->active_fpu);                    \
3111 }
3112
3113 /* NOTE: the comma operator will make "cond" to eval to false,
3114  * but float64_unordered_quiet() is still called. */
3115 FOP_COND_D(f,   (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status), 0))
3116 FOP_COND_D(un,  float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status))
3117 FOP_COND_D(eq,  float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3118 FOP_COND_D(ueq, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3119 FOP_COND_D(olt, float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3120 FOP_COND_D(ult, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3121 FOP_COND_D(ole, float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3122 FOP_COND_D(ule, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3123 /* NOTE: the comma operator will make "cond" to eval to false,
3124  * but float64_unordered() is still called. */
3125 FOP_COND_D(sf,  (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status), 0))
3126 FOP_COND_D(ngle,float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status))
3127 FOP_COND_D(seq, float64_eq(fdt0, fdt1, &env->active_fpu.fp_status))
3128 FOP_COND_D(ngl, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_eq(fdt0, fdt1, &env->active_fpu.fp_status))
3129 FOP_COND_D(lt,  float64_lt(fdt0, fdt1, &env->active_fpu.fp_status))
3130 FOP_COND_D(nge, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_lt(fdt0, fdt1, &env->active_fpu.fp_status))
3131 FOP_COND_D(le,  float64_le(fdt0, fdt1, &env->active_fpu.fp_status))
3132 FOP_COND_D(ngt, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_le(fdt0, fdt1, &env->active_fpu.fp_status))
3133
3134 #define FOP_COND_S(op, cond)                                   \
3135 void helper_cmp_s_ ## op(CPUMIPSState *env, uint32_t fst0,     \
3136                          uint32_t fst1, int cc)                \
3137 {                                                              \
3138     int c;                                                     \
3139     c = cond;                                                  \
3140     update_fcr31(env, GETPC());                                \
3141     if (c)                                                     \
3142         SET_FP_COND(cc, env->active_fpu);                      \
3143     else                                                       \
3144         CLEAR_FP_COND(cc, env->active_fpu);                    \
3145 }                                                              \
3146 void helper_cmpabs_s_ ## op(CPUMIPSState *env, uint32_t fst0,  \
3147                             uint32_t fst1, int cc)             \
3148 {                                                              \
3149     int c;                                                     \
3150     fst0 = float32_abs(fst0);                                  \
3151     fst1 = float32_abs(fst1);                                  \
3152     c = cond;                                                  \
3153     update_fcr31(env, GETPC());                                \
3154     if (c)                                                     \
3155         SET_FP_COND(cc, env->active_fpu);                      \
3156     else                                                       \
3157         CLEAR_FP_COND(cc, env->active_fpu);                    \
3158 }
3159
3160 /* NOTE: the comma operator will make "cond" to eval to false,
3161  * but float32_unordered_quiet() is still called. */
3162 FOP_COND_S(f,   (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0))
3163 FOP_COND_S(un,  float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status))
3164 FOP_COND_S(eq,  float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status))
3165 FOP_COND_S(ueq, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)  || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status))
3166 FOP_COND_S(olt, float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status))
3167 FOP_COND_S(ult, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)  || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status))
3168 FOP_COND_S(ole, float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status))
3169 FOP_COND_S(ule, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)  || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status))
3170 /* NOTE: the comma operator will make "cond" to eval to false,
3171  * but float32_unordered() is still called. */
3172 FOP_COND_S(sf,  (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0))
3173 FOP_COND_S(ngle,float32_unordered(fst1, fst0, &env->active_fpu.fp_status))
3174 FOP_COND_S(seq, float32_eq(fst0, fst1, &env->active_fpu.fp_status))
3175 FOP_COND_S(ngl, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)  || float32_eq(fst0, fst1, &env->active_fpu.fp_status))
3176 FOP_COND_S(lt,  float32_lt(fst0, fst1, &env->active_fpu.fp_status))
3177 FOP_COND_S(nge, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)  || float32_lt(fst0, fst1, &env->active_fpu.fp_status))
3178 FOP_COND_S(le,  float32_le(fst0, fst1, &env->active_fpu.fp_status))
3179 FOP_COND_S(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)  || float32_le(fst0, fst1, &env->active_fpu.fp_status))
3180
3181 #define FOP_COND_PS(op, condl, condh)                           \
3182 void helper_cmp_ps_ ## op(CPUMIPSState *env, uint64_t fdt0,     \
3183                           uint64_t fdt1, int cc)                \
3184 {                                                               \
3185     uint32_t fst0, fsth0, fst1, fsth1;                          \
3186     int ch, cl;                                                 \
3187     fst0 = fdt0 & 0XFFFFFFFF;                                   \
3188     fsth0 = fdt0 >> 32;                                         \
3189     fst1 = fdt1 & 0XFFFFFFFF;                                   \
3190     fsth1 = fdt1 >> 32;                                         \
3191     cl = condl;                                                 \
3192     ch = condh;                                                 \
3193     update_fcr31(env, GETPC());                                 \
3194     if (cl)                                                     \
3195         SET_FP_COND(cc, env->active_fpu);                       \
3196     else                                                        \
3197         CLEAR_FP_COND(cc, env->active_fpu);                     \
3198     if (ch)                                                     \
3199         SET_FP_COND(cc + 1, env->active_fpu);                   \
3200     else                                                        \
3201         CLEAR_FP_COND(cc + 1, env->active_fpu);                 \
3202 }                                                               \
3203 void helper_cmpabs_ps_ ## op(CPUMIPSState *env, uint64_t fdt0,  \
3204                              uint64_t fdt1, int cc)             \
3205 {                                                               \
3206     uint32_t fst0, fsth0, fst1, fsth1;                          \
3207     int ch, cl;                                                 \
3208     fst0 = float32_abs(fdt0 & 0XFFFFFFFF);                      \
3209     fsth0 = float32_abs(fdt0 >> 32);                            \
3210     fst1 = float32_abs(fdt1 & 0XFFFFFFFF);                      \
3211     fsth1 = float32_abs(fdt1 >> 32);                            \
3212     cl = condl;                                                 \
3213     ch = condh;                                                 \
3214     update_fcr31(env, GETPC());                                 \
3215     if (cl)                                                     \
3216         SET_FP_COND(cc, env->active_fpu);                       \
3217     else                                                        \
3218         CLEAR_FP_COND(cc, env->active_fpu);                     \
3219     if (ch)                                                     \
3220         SET_FP_COND(cc + 1, env->active_fpu);                   \
3221     else                                                        \
3222         CLEAR_FP_COND(cc + 1, env->active_fpu);                 \
3223 }
3224
3225 /* NOTE: the comma operator will make "cond" to eval to false,
3226  * but float32_unordered_quiet() is still called. */
3227 FOP_COND_PS(f,   (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0),
3228                  (float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status), 0))
3229 FOP_COND_PS(un,  float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status),
3230                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status))
3231 FOP_COND_PS(eq,  float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status),
3232                  float32_eq_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3233 FOP_COND_PS(ueq, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)    || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status),
3234                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_eq_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3235 FOP_COND_PS(olt, float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status),
3236                  float32_lt_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3237 FOP_COND_PS(ult, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)    || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status),
3238                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_lt_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3239 FOP_COND_PS(ole, float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status),
3240                  float32_le_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3241 FOP_COND_PS(ule, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)    || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status),
3242                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_le_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3243 /* NOTE: the comma operator will make "cond" to eval to false,
3244  * but float32_unordered() is still called. */
3245 FOP_COND_PS(sf,  (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0),
3246                  (float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status), 0))
3247 FOP_COND_PS(ngle,float32_unordered(fst1, fst0, &env->active_fpu.fp_status),
3248                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status))
3249 FOP_COND_PS(seq, float32_eq(fst0, fst1, &env->active_fpu.fp_status),
3250                  float32_eq(fsth0, fsth1, &env->active_fpu.fp_status))
3251 FOP_COND_PS(ngl, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_eq(fst0, fst1, &env->active_fpu.fp_status),
3252                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_eq(fsth0, fsth1, &env->active_fpu.fp_status))
3253 FOP_COND_PS(lt,  float32_lt(fst0, fst1, &env->active_fpu.fp_status),
3254                  float32_lt(fsth0, fsth1, &env->active_fpu.fp_status))
3255 FOP_COND_PS(nge, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_lt(fst0, fst1, &env->active_fpu.fp_status),
3256                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_lt(fsth0, fsth1, &env->active_fpu.fp_status))
3257 FOP_COND_PS(le,  float32_le(fst0, fst1, &env->active_fpu.fp_status),
3258                  float32_le(fsth0, fsth1, &env->active_fpu.fp_status))
3259 FOP_COND_PS(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_le(fst0, fst1, &env->active_fpu.fp_status),
3260                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_le(fsth0, fsth1, &env->active_fpu.fp_status))