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