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 #ifdef TARGET_MIPS64
 271 void helper_dmult(CPUMIPSState *env, target_ulong arg1, target_ulong arg2)
 272 {
 273     muls64(&(env->active_tc.LO[0]), &(env->active_tc.HI[0]), arg1, arg2);
 274 }
 275
 276 void helper_dmultu(CPUMIPSState *env, target_ulong arg1, target_ulong arg2)
 277 {
 278     mulu64(&(env->active_tc.LO[0]), &(env->active_tc.HI[0]), arg1, arg2);
 279 }
 280 #endif
 281
 282 #ifndef CONFIG_USER_ONLY
 283
 284 static inline hwaddr do_translate_address(CPUMIPSState *env,
 285                                                       target_ulong address,
 286                                                       int rw)
 287 {
 288     hwaddr lladdr;
 289
 290     lladdr = cpu_mips_translate_address(env, address, rw);
 291
 292     if (lladdr == -1LL) {
 293         cpu_loop_exit(env);
 294     } else {
 295         return lladdr;
 296     }
 297 }
 298
 299 #define HELPER_LD_ATOMIC(name, insn)                                          \
 300 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg, int mem_idx)  \
 301 {                                                                             \
 302     env->lladdr = do_translate_address(env, arg, 0);                          \
 303     env->llval = do_##insn(env, arg, mem_idx);                                \
 304     return env->llval;                                                        \
 305 }
 306 HELPER_LD_ATOMIC(ll, lw)
 307 #ifdef TARGET_MIPS64
 308 HELPER_LD_ATOMIC(lld, ld)
 309 #endif
 310 #undef HELPER_LD_ATOMIC
 311
 312 #define HELPER_ST_ATOMIC(name, ld_insn, st_insn, almask)                      \
 313 target_ulong helper_##name(CPUMIPSState *env, target_ulong arg1,              \
 314                            target_ulong arg2, int mem_idx)                    \
 315 {                                                                             \
 316     target_long tmp;                                                          \
 317                                                                               \
 318     if (arg2 & almask) {                                                      \
 319         env->CP0_BadVAddr = arg2;                                             \
 320         helper_raise_exception(env, EXCP_AdES);                               \
 321     }                                                                         \
 322     if (do_translate_address(env, arg2, 1) == env->lladdr) {                  \
 323         tmp = do_##ld_insn(env, arg2, mem_idx);                               \
 324         if (tmp == env->llval) {                                              \
 325             do_##st_insn(env, arg2, arg1, mem_idx);                           \
 326             return 1;                                                         \
 327         }                                                                     \
 328     }                                                                         \
 329     return 0;                                                                 \
 330 }
 331 HELPER_ST_ATOMIC(sc, lw, sw, 0x3)
 332 #ifdef TARGET_MIPS64
 333 HELPER_ST_ATOMIC(scd, ld, sd, 0x7)
 334 #endif
 335 #undef HELPER_ST_ATOMIC
 336 #endif
 337
 338 #ifdef TARGET_WORDS_BIGENDIAN
 339 #define GET_LMASK(v) ((v) & 3)
 340 #define GET_OFFSET(addr, offset) (addr + (offset))
 341 #else
 342 #define GET_LMASK(v) (((v) & 3) ^ 3)
 343 #define GET_OFFSET(addr, offset) (addr - (offset))
 344 #endif
 345
 346 void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 347                 int mem_idx)
 348 {
 349     do_sb(env, arg2, (uint8_t)(arg1 >> 24), mem_idx);
 350
 351     if (GET_LMASK(arg2) <= 2)
 352         do_sb(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 16), mem_idx);
 353
 354     if (GET_LMASK(arg2) <= 1)
 355         do_sb(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 8), mem_idx);
 356
 357     if (GET_LMASK(arg2) == 0)
 358         do_sb(env, GET_OFFSET(arg2, 3), (uint8_t)arg1, mem_idx);
 359 }
 360
 361 void helper_swr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 362                 int mem_idx)
 363 {
 364     do_sb(env, arg2, (uint8_t)arg1, mem_idx);
 365
 366     if (GET_LMASK(arg2) >= 1)
 367         do_sb(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8), mem_idx);
 368
 369     if (GET_LMASK(arg2) >= 2)
 370         do_sb(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16), mem_idx);
 371
 372     if (GET_LMASK(arg2) == 3)
 373         do_sb(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24), mem_idx);
 374 }
 375
 376 #if defined(TARGET_MIPS64)
 377 /* "half" load and stores.  We must do the memory access inline,
 378    or fault handling won't work.  */
 379
 380 #ifdef TARGET_WORDS_BIGENDIAN
 381 #define GET_LMASK64(v) ((v) & 7)
 382 #else
 383 #define GET_LMASK64(v) (((v) & 7) ^ 7)
 384 #endif
 385
 386 void helper_sdl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 387                 int mem_idx)
 388 {
 389     do_sb(env, arg2, (uint8_t)(arg1 >> 56), mem_idx);
 390
 391     if (GET_LMASK64(arg2) <= 6)
 392         do_sb(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 48), mem_idx);
 393
 394     if (GET_LMASK64(arg2) <= 5)
 395         do_sb(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 40), mem_idx);
 396
 397     if (GET_LMASK64(arg2) <= 4)
 398         do_sb(env, GET_OFFSET(arg2, 3), (uint8_t)(arg1 >> 32), mem_idx);
 399
 400     if (GET_LMASK64(arg2) <= 3)
 401         do_sb(env, GET_OFFSET(arg2, 4), (uint8_t)(arg1 >> 24), mem_idx);
 402
 403     if (GET_LMASK64(arg2) <= 2)
 404         do_sb(env, GET_OFFSET(arg2, 5), (uint8_t)(arg1 >> 16), mem_idx);
 405
 406     if (GET_LMASK64(arg2) <= 1)
 407         do_sb(env, GET_OFFSET(arg2, 6), (uint8_t)(arg1 >> 8), mem_idx);
 408
 409     if (GET_LMASK64(arg2) <= 0)
 410         do_sb(env, GET_OFFSET(arg2, 7), (uint8_t)arg1, mem_idx);
 411 }
 412
 413 void helper_sdr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
 414                 int mem_idx)
 415 {
 416     do_sb(env, arg2, (uint8_t)arg1, mem_idx);
 417
 418     if (GET_LMASK64(arg2) >= 1)
 419         do_sb(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8), mem_idx);
 420
 421     if (GET_LMASK64(arg2) >= 2)
 422         do_sb(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16), mem_idx);
 423
 424     if (GET_LMASK64(arg2) >= 3)
 425         do_sb(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24), mem_idx);
 426
 427     if (GET_LMASK64(arg2) >= 4)
 428         do_sb(env, GET_OFFSET(arg2, -4), (uint8_t)(arg1 >> 32), mem_idx);
 429
 430     if (GET_LMASK64(arg2) >= 5)
 431         do_sb(env, GET_OFFSET(arg2, -5), (uint8_t)(arg1 >> 40), mem_idx);
 432
 433     if (GET_LMASK64(arg2) >= 6)
 434         do_sb(env, GET_OFFSET(arg2, -6), (uint8_t)(arg1 >> 48), mem_idx);
 435
 436     if (GET_LMASK64(arg2) == 7)
 437         do_sb(env, GET_OFFSET(arg2, -7), (uint8_t)(arg1 >> 56), mem_idx);
 438 }
 439 #endif /* TARGET_MIPS64 */
 440
 441 static const int multiple_regs[] = { 16, 17, 18, 19, 20, 21, 22, 23, 30 };
 442
 443 void helper_lwm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 444                 uint32_t mem_idx)
 445 {
 446     target_ulong base_reglist = reglist & 0xf;
 447     target_ulong do_r31 = reglist & 0x10;
 448
 449     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 450         target_ulong i;
 451
 452         for (i = 0; i < base_reglist; i++) {
 453             env->active_tc.gpr[multiple_regs[i]] =
 454                 (target_long)do_lw(env, addr, mem_idx);
 455             addr += 4;
 456         }
 457     }
 458
 459     if (do_r31) {
 460         env->active_tc.gpr[31] = (target_long)do_lw(env, addr, mem_idx);
 461     }
 462 }
 463
 464 void helper_swm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 465                 uint32_t mem_idx)
 466 {
 467     target_ulong base_reglist = reglist & 0xf;
 468     target_ulong do_r31 = reglist & 0x10;
 469
 470     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 471         target_ulong i;
 472
 473         for (i = 0; i < base_reglist; i++) {
 474             do_sw(env, addr, env->active_tc.gpr[multiple_regs[i]], mem_idx);
 475             addr += 4;
 476         }
 477     }
 478
 479     if (do_r31) {
 480         do_sw(env, addr, env->active_tc.gpr[31], mem_idx);
 481     }
 482 }
 483
 484 #if defined(TARGET_MIPS64)
 485 void helper_ldm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 486                 uint32_t mem_idx)
 487 {
 488     target_ulong base_reglist = reglist & 0xf;
 489     target_ulong do_r31 = reglist & 0x10;
 490
 491     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 492         target_ulong i;
 493
 494         for (i = 0; i < base_reglist; i++) {
 495             env->active_tc.gpr[multiple_regs[i]] = do_ld(env, addr, mem_idx);
 496             addr += 8;
 497         }
 498     }
 499
 500     if (do_r31) {
 501         env->active_tc.gpr[31] = do_ld(env, addr, mem_idx);
 502     }
 503 }
 504
 505 void helper_sdm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
 506                 uint32_t mem_idx)
 507 {
 508     target_ulong base_reglist = reglist & 0xf;
 509     target_ulong do_r31 = reglist & 0x10;
 510
 511     if (base_reglist > 0 && base_reglist <= ARRAY_SIZE (multiple_regs)) {
 512         target_ulong i;
 513
 514         for (i = 0; i < base_reglist; i++) {
 515             do_sd(env, addr, env->active_tc.gpr[multiple_regs[i]], mem_idx);
 516             addr += 8;
 517         }
 518     }
 519
 520     if (do_r31) {
 521         do_sd(env, addr, env->active_tc.gpr[31], mem_idx);
 522     }
 523 }
 524 #endif
 525
 526 #ifndef CONFIG_USER_ONLY
 527 /* SMP helpers.  */
 528 static bool mips_vpe_is_wfi(MIPSCPU *c)
 529 {
 530     CPUMIPSState *env = &c->env;
 531
 532     /* If the VPE is halted but otherwise active, it means it's waiting for
 533        an interrupt.  */
 534     return env->halted && mips_vpe_active(env);
 535 }
 536
 537 static inline void mips_vpe_wake(CPUMIPSState *c)
 538 {
 539     /* Dont set ->halted = 0 directly, let it be done via cpu_has_work
 540        because there might be other conditions that state that c should
 541        be sleeping.  */
 542     cpu_interrupt(c, CPU_INTERRUPT_WAKE);
 543 }
 544
 545 static inline void mips_vpe_sleep(MIPSCPU *cpu)
 546 {
 547     CPUMIPSState *c = &cpu->env;
 548
 549     /* The VPE was shut off, really go to bed.
 550        Reset any old _WAKE requests.  */
 551     c->halted = 1;
 552     cpu_reset_interrupt(c, CPU_INTERRUPT_WAKE);
 553 }
 554
 555 static inline void mips_tc_wake(MIPSCPU *cpu, int tc)
 556 {
 557     CPUMIPSState *c = &cpu->env;
 558
 559     /* FIXME: TC reschedule.  */
 560     if (mips_vpe_active(c) && !mips_vpe_is_wfi(cpu)) {
 561         mips_vpe_wake(c);
 562     }
 563 }
 564
 565 static inline void mips_tc_sleep(MIPSCPU *cpu, int tc)
 566 {
 567     CPUMIPSState *c = &cpu->env;
 568
 569     /* FIXME: TC reschedule.  */
 570     if (!mips_vpe_active(c)) {
 571         mips_vpe_sleep(cpu);
 572     }
 573 }
 574
 575 /* tc should point to an int with the value of the global TC index.
 576    This function will transform it into a local index within the
 577    returned CPUMIPSState.
 578
 579    FIXME: This code assumes that all VPEs have the same number of TCs,
 580           which depends on runtime setup. Can probably be fixed by
 581           walking the list of CPUMIPSStates.  */
 582 static CPUMIPSState *mips_cpu_map_tc(CPUMIPSState *env, int *tc)
 583 {
 584     CPUMIPSState *other;
 585     int vpe_idx, nr_threads = env->nr_threads;
 586     int tc_idx = *tc;
 587
 588     if (!(env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP))) {
 589         /* Not allowed to address other CPUs.  */
 590         *tc = env->current_tc;
 591         return env;
 592     }
 593
 594     vpe_idx = tc_idx / nr_threads;
 595     *tc = tc_idx % nr_threads;
 596     other = qemu_get_cpu(vpe_idx);
 597     return other ? other : 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     CPUMIPSState *other_cpu_env = first_cpu;
1700     target_ulong prev = env->mvp->CP0_MVPControl;
1701
1702     do {
1703         /* Turn off all VPEs except the one executing the dvpe.  */
1704         if (other_cpu_env != env) {
1705             MIPSCPU *other_cpu = mips_env_get_cpu(other_cpu_env);
1706
1707             other_cpu_env->mvp->CP0_MVPControl &= ~(1 << CP0MVPCo_EVP);
1708             mips_vpe_sleep(other_cpu);
1709         }
1710         other_cpu_env = other_cpu_env->next_cpu;
1711     } while (other_cpu_env);
1712     return prev;
1713 }
1714
1715 target_ulong helper_evpe(CPUMIPSState *env)
1716 {
1717     CPUMIPSState *other_cpu_env = first_cpu;
1718     target_ulong prev = env->mvp->CP0_MVPControl;
1719
1720     do {
1721         MIPSCPU *other_cpu = mips_env_get_cpu(other_cpu_env);
1722
1723         if (other_cpu_env != env
1724             /* If the VPE is WFI, don't disturb its sleep.  */
1725             && !mips_vpe_is_wfi(other_cpu)) {
1726             /* Enable the VPE.  */
1727             other_cpu_env->mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP);
1728             mips_vpe_wake(other_cpu_env); /* And wake it up.  */
1729         }
1730         other_cpu_env = other_cpu_env->next_cpu;
1731     } while (other_cpu_env);
1732     return prev;
1733 }
1734 #endif /* !CONFIG_USER_ONLY */
1735
1736 void helper_fork(target_ulong arg1, target_ulong arg2)
1737 {
1738     // arg1 = rt, arg2 = rs
1739     arg1 = 0;
1740     // TODO: store to TC register
1741 }
1742
1743 target_ulong helper_yield(CPUMIPSState *env, target_ulong arg)
1744 {
1745     target_long arg1 = arg;
1746
1747     if (arg1 < 0) {
1748         /* No scheduling policy implemented. */
1749         if (arg1 != -2) {
1750             if (env->CP0_VPEControl & (1 << CP0VPECo_YSI) &&
1751                 env->active_tc.CP0_TCStatus & (1 << CP0TCSt_DT)) {
1752                 env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
1753                 env->CP0_VPEControl |= 4 << CP0VPECo_EXCPT;
1754                 helper_raise_exception(env, EXCP_THREAD);
1755             }
1756         }
1757     } else if (arg1 == 0) {
1758         if (0 /* TODO: TC underflow */) {
1759             env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
1760             helper_raise_exception(env, EXCP_THREAD);
1761         } else {
1762             // TODO: Deallocate TC
1763         }
1764     } else if (arg1 > 0) {
1765         /* Yield qualifier inputs not implemented. */
1766         env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
1767         env->CP0_VPEControl |= 2 << CP0VPECo_EXCPT;
1768         helper_raise_exception(env, EXCP_THREAD);
1769     }
1770     return env->CP0_YQMask;
1771 }
1772
1773 #ifndef CONFIG_USER_ONLY
1774 /* TLB management */
1775 static void cpu_mips_tlb_flush (CPUMIPSState *env, int flush_global)
1776 {
1777     /* Flush qemu's TLB and discard all shadowed entries.  */
1778     tlb_flush (env, flush_global);
1779     env->tlb->tlb_in_use = env->tlb->nb_tlb;
1780 }
1781
1782 static void r4k_mips_tlb_flush_extra (CPUMIPSState *env, int first)
1783 {
1784     /* Discard entries from env->tlb[first] onwards.  */
1785     while (env->tlb->tlb_in_use > first) {
1786         r4k_invalidate_tlb(env, --env->tlb->tlb_in_use, 0);
1787     }
1788 }
1789
1790 static void r4k_fill_tlb(CPUMIPSState *env, int idx)
1791 {
1792     r4k_tlb_t *tlb;
1793
1794     /* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
1795     tlb = &env->tlb->mmu.r4k.tlb[idx];
1796     tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
1797 #if defined(TARGET_MIPS64)
1798     tlb->VPN &= env->SEGMask;
1799 #endif
1800     tlb->ASID = env->CP0_EntryHi & 0xFF;
1801     tlb->PageMask = env->CP0_PageMask;
1802     tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
1803     tlb->V0 = (env->CP0_EntryLo0 & 2) != 0;
1804     tlb->D0 = (env->CP0_EntryLo0 & 4) != 0;
1805     tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7;
1806     tlb->PFN[0] = (env->CP0_EntryLo0 >> 6) << 12;
1807     tlb->V1 = (env->CP0_EntryLo1 & 2) != 0;
1808     tlb->D1 = (env->CP0_EntryLo1 & 4) != 0;
1809     tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7;
1810     tlb->PFN[1] = (env->CP0_EntryLo1 >> 6) << 12;
1811 }
1812
1813 void r4k_helper_tlbwi(CPUMIPSState *env)
1814 {
1815     r4k_tlb_t *tlb;
1816     int idx;
1817     target_ulong VPN;
1818     uint8_t ASID;
1819     bool G, V0, D0, V1, D1;
1820
1821     idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
1822     tlb = &env->tlb->mmu.r4k.tlb[idx];
1823     VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
1824 #if defined(TARGET_MIPS64)
1825     VPN &= env->SEGMask;
1826 #endif
1827     ASID = env->CP0_EntryHi & 0xff;
1828     G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
1829     V0 = (env->CP0_EntryLo0 & 2) != 0;
1830     D0 = (env->CP0_EntryLo0 & 4) != 0;
1831     V1 = (env->CP0_EntryLo1 & 2) != 0;
1832     D1 = (env->CP0_EntryLo1 & 4) != 0;
1833
1834     /* Discard cached TLB entries, unless tlbwi is just upgrading access
1835        permissions on the current entry. */
1836     if (tlb->VPN != VPN || tlb->ASID != ASID || tlb->G != G ||
1837         (tlb->V0 && !V0) || (tlb->D0 && !D0) ||
1838         (tlb->V1 && !V1) || (tlb->D1 && !D1)) {
1839         r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
1840     }
1841
1842     r4k_invalidate_tlb(env, idx, 0);
1843     r4k_fill_tlb(env, idx);
1844 }
1845
1846 void r4k_helper_tlbwr(CPUMIPSState *env)
1847 {
1848     int r = cpu_mips_get_random(env);
1849
1850     r4k_invalidate_tlb(env, r, 1);
1851     r4k_fill_tlb(env, r);
1852 }
1853
1854 void r4k_helper_tlbp(CPUMIPSState *env)
1855 {
1856     r4k_tlb_t *tlb;
1857     target_ulong mask;
1858     target_ulong tag;
1859     target_ulong VPN;
1860     uint8_t ASID;
1861     int i;
1862
1863     ASID = env->CP0_EntryHi & 0xFF;
1864     for (i = 0; i < env->tlb->nb_tlb; i++) {
1865         tlb = &env->tlb->mmu.r4k.tlb[i];
1866         /* 1k pages are not supported. */
1867         mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
1868         tag = env->CP0_EntryHi & ~mask;
1869         VPN = tlb->VPN & ~mask;
1870 #if defined(TARGET_MIPS64)
1871         tag &= env->SEGMask;
1872 #endif
1873         /* Check ASID, virtual page number & size */
1874         if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
1875             /* TLB match */
1876             env->CP0_Index = i;
1877             break;
1878         }
1879     }
1880     if (i == env->tlb->nb_tlb) {
1881         /* No match.  Discard any shadow entries, if any of them match.  */
1882         for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
1883             tlb = &env->tlb->mmu.r4k.tlb[i];
1884             /* 1k pages are not supported. */
1885             mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
1886             tag = env->CP0_EntryHi & ~mask;
1887             VPN = tlb->VPN & ~mask;
1888 #if defined(TARGET_MIPS64)
1889             tag &= env->SEGMask;
1890 #endif
1891             /* Check ASID, virtual page number & size */
1892             if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
1893                 r4k_mips_tlb_flush_extra (env, i);
1894                 break;
1895             }
1896         }
1897
1898         env->CP0_Index |= 0x80000000;
1899     }
1900 }
1901
1902 void r4k_helper_tlbr(CPUMIPSState *env)
1903 {
1904     r4k_tlb_t *tlb;
1905     uint8_t ASID;
1906     int idx;
1907
1908     ASID = env->CP0_EntryHi & 0xFF;
1909     idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
1910     tlb = &env->tlb->mmu.r4k.tlb[idx];
1911
1912     /* If this will change the current ASID, flush qemu's TLB.  */
1913     if (ASID != tlb->ASID)
1914         cpu_mips_tlb_flush (env, 1);
1915
1916     r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
1917
1918     env->CP0_EntryHi = tlb->VPN | tlb->ASID;
1919     env->CP0_PageMask = tlb->PageMask;
1920     env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) |
1921                         (tlb->C0 << 3) | (tlb->PFN[0] >> 6);
1922     env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) |
1923                         (tlb->C1 << 3) | (tlb->PFN[1] >> 6);
1924 }
1925
1926 void helper_tlbwi(CPUMIPSState *env)
1927 {
1928     env->tlb->helper_tlbwi(env);
1929 }
1930
1931 void helper_tlbwr(CPUMIPSState *env)
1932 {
1933     env->tlb->helper_tlbwr(env);
1934 }
1935
1936 void helper_tlbp(CPUMIPSState *env)
1937 {
1938     env->tlb->helper_tlbp(env);
1939 }
1940
1941 void helper_tlbr(CPUMIPSState *env)
1942 {
1943     env->tlb->helper_tlbr(env);
1944 }
1945
1946 /* Specials */
1947 target_ulong helper_di(CPUMIPSState *env)
1948 {
1949     target_ulong t0 = env->CP0_Status;
1950
1951     env->CP0_Status = t0 & ~(1 << CP0St_IE);
1952     return t0;
1953 }
1954
1955 target_ulong helper_ei(CPUMIPSState *env)
1956 {
1957     target_ulong t0 = env->CP0_Status;
1958
1959     env->CP0_Status = t0 | (1 << CP0St_IE);
1960     return t0;
1961 }
1962
1963 static void debug_pre_eret(CPUMIPSState *env)
1964 {
1965     if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
1966         qemu_log("ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
1967                 env->active_tc.PC, env->CP0_EPC);
1968         if (env->CP0_Status & (1 << CP0St_ERL))
1969             qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
1970         if (env->hflags & MIPS_HFLAG_DM)
1971             qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
1972         qemu_log("\n");
1973     }
1974 }
1975
1976 static void debug_post_eret(CPUMIPSState *env)
1977 {
1978     if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
1979         qemu_log("  =>  PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
1980                 env->active_tc.PC, env->CP0_EPC);
1981         if (env->CP0_Status & (1 << CP0St_ERL))
1982             qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
1983         if (env->hflags & MIPS_HFLAG_DM)
1984             qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
1985         switch (env->hflags & MIPS_HFLAG_KSU) {
1986         case MIPS_HFLAG_UM: qemu_log(", UM\n"); break;
1987         case MIPS_HFLAG_SM: qemu_log(", SM\n"); break;
1988         case MIPS_HFLAG_KM: qemu_log("\n"); break;
1989         default: cpu_abort(env, "Invalid MMU mode!\n"); break;
1990         }
1991     }
1992 }
1993
1994 static void set_pc(CPUMIPSState *env, target_ulong error_pc)
1995 {
1996     env->active_tc.PC = error_pc & ~(target_ulong)1;
1997     if (error_pc & 1) {
1998         env->hflags |= MIPS_HFLAG_M16;
1999     } else {
2000         env->hflags &= ~(MIPS_HFLAG_M16);
2001     }
2002 }
2003
2004 void helper_eret(CPUMIPSState *env)
2005 {
2006     debug_pre_eret(env);
2007     if (env->CP0_Status & (1 << CP0St_ERL)) {
2008         set_pc(env, env->CP0_ErrorEPC);
2009         env->CP0_Status &= ~(1 << CP0St_ERL);
2010     } else {
2011         set_pc(env, env->CP0_EPC);
2012         env->CP0_Status &= ~(1 << CP0St_EXL);
2013     }
2014     compute_hflags(env);
2015     debug_post_eret(env);
2016     env->lladdr = 1;
2017 }
2018
2019 void helper_deret(CPUMIPSState *env)
2020 {
2021     debug_pre_eret(env);
2022     set_pc(env, env->CP0_DEPC);
2023
2024     env->hflags &= MIPS_HFLAG_DM;
2025     compute_hflags(env);
2026     debug_post_eret(env);
2027     env->lladdr = 1;
2028 }
2029 #endif /* !CONFIG_USER_ONLY */
2030
2031 target_ulong helper_rdhwr_cpunum(CPUMIPSState *env)
2032 {
2033     if ((env->hflags & MIPS_HFLAG_CP0) ||
2034         (env->CP0_HWREna & (1 << 0)))
2035         return env->CP0_EBase & 0x3ff;
2036     else
2037         helper_raise_exception(env, EXCP_RI);
2038
2039     return 0;
2040 }
2041
2042 target_ulong helper_rdhwr_synci_step(CPUMIPSState *env)
2043 {
2044     if ((env->hflags & MIPS_HFLAG_CP0) ||
2045         (env->CP0_HWREna & (1 << 1)))
2046         return env->SYNCI_Step;
2047     else
2048         helper_raise_exception(env, EXCP_RI);
2049
2050     return 0;
2051 }
2052
2053 target_ulong helper_rdhwr_cc(CPUMIPSState *env)
2054 {
2055     if ((env->hflags & MIPS_HFLAG_CP0) ||
2056         (env->CP0_HWREna & (1 << 2)))
2057         return env->CP0_Count;
2058     else
2059         helper_raise_exception(env, EXCP_RI);
2060
2061     return 0;
2062 }
2063
2064 target_ulong helper_rdhwr_ccres(CPUMIPSState *env)
2065 {
2066     if ((env->hflags & MIPS_HFLAG_CP0) ||
2067         (env->CP0_HWREna & (1 << 3)))
2068         return env->CCRes;
2069     else
2070         helper_raise_exception(env, EXCP_RI);
2071
2072     return 0;
2073 }
2074
2075 void helper_pmon(CPUMIPSState *env, int function)
2076 {
2077     function /= 2;
2078     switch (function) {
2079     case 2: /* TODO: char inbyte(int waitflag); */
2080         if (env->active_tc.gpr[4] == 0)
2081             env->active_tc.gpr[2] = -1;
2082         /* Fall through */
2083     case 11: /* TODO: char inbyte (void); */
2084         env->active_tc.gpr[2] = -1;
2085         break;
2086     case 3:
2087     case 12:
2088         printf("%c", (char)(env->active_tc.gpr[4] & 0xFF));
2089         break;
2090     case 17:
2091         break;
2092     case 158:
2093         {
2094             unsigned char *fmt = (void *)(uintptr_t)env->active_tc.gpr[4];
2095             printf("%s", fmt);
2096         }
2097         break;
2098     }
2099 }
2100
2101 void helper_wait(CPUMIPSState *env)
2102 {
2103     env->halted = 1;
2104     cpu_reset_interrupt(env, 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 cpu_unassigned_access(CPUMIPSState *env, hwaddr addr,
2149                            int is_write, int is_exec, int unused, int size)
2150 {
2151     if (is_exec)
2152         helper_raise_exception(env, EXCP_IBE);
2153     else
2154         helper_raise_exception(env, EXCP_DBE);
2155 }
2156 #endif /* !CONFIG_USER_ONLY */
2157
2158 /* Complex FPU operations which may need stack space. */
2159
2160 #define FLOAT_TWO32 make_float32(1 << 30)
2161 #define FLOAT_TWO64 make_float64(1ULL << 62)
2162 #define FP_TO_INT32_OVERFLOW 0x7fffffff
2163 #define FP_TO_INT64_OVERFLOW 0x7fffffffffffffffULL
2164
2165 /* convert MIPS rounding mode in FCR31 to IEEE library */
2166 static unsigned int ieee_rm[] = {
2167     float_round_nearest_even,
2168     float_round_to_zero,
2169     float_round_up,
2170     float_round_down
2171 };
2172
2173 static inline void restore_rounding_mode(CPUMIPSState *env)
2174 {
2175     set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3],
2176                             &env->active_fpu.fp_status);
2177 }
2178
2179 static inline void restore_flush_mode(CPUMIPSState *env)
2180 {
2181     set_flush_to_zero((env->active_fpu.fcr31 & (1 << 24)) != 0,
2182                       &env->active_fpu.fp_status);
2183 }
2184
2185 target_ulong helper_cfc1(CPUMIPSState *env, uint32_t reg)
2186 {
2187     target_ulong arg1;
2188
2189     switch (reg) {
2190     case 0:
2191         arg1 = (int32_t)env->active_fpu.fcr0;
2192         break;
2193     case 25:
2194         arg1 = ((env->active_fpu.fcr31 >> 24) & 0xfe) | ((env->active_fpu.fcr31 >> 23) & 0x1);
2195         break;
2196     case 26:
2197         arg1 = env->active_fpu.fcr31 & 0x0003f07c;
2198         break;
2199     case 28:
2200         arg1 = (env->active_fpu.fcr31 & 0x00000f83) | ((env->active_fpu.fcr31 >> 22) & 0x4);
2201         break;
2202     default:
2203         arg1 = (int32_t)env->active_fpu.fcr31;
2204         break;
2205     }
2206
2207     return arg1;
2208 }
2209
2210 void helper_ctc1(CPUMIPSState *env, target_ulong arg1, uint32_t reg)
2211 {
2212     switch(reg) {
2213     case 25:
2214         if (arg1 & 0xffffff00)
2215             return;
2216         env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0x017fffff) | ((arg1 & 0xfe) << 24) |
2217                      ((arg1 & 0x1) << 23);
2218         break;
2219     case 26:
2220         if (arg1 & 0x007c0000)
2221             return;
2222         env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0xfffc0f83) | (arg1 & 0x0003f07c);
2223         break;
2224     case 28:
2225         if (arg1 & 0x007c0000)
2226             return;
2227         env->active_fpu.fcr31 = (env->active_fpu.fcr31 & 0xfefff07c) | (arg1 & 0x00000f83) |
2228                      ((arg1 & 0x4) << 22);
2229         break;
2230     case 31:
2231         if (arg1 & 0x007c0000)
2232             return;
2233         env->active_fpu.fcr31 = arg1;
2234         break;
2235     default:
2236         return;
2237     }
2238     /* set rounding mode */
2239     restore_rounding_mode(env);
2240     /* set flush-to-zero mode */
2241     restore_flush_mode(env);
2242     set_float_exception_flags(0, &env->active_fpu.fp_status);
2243     if ((GET_FP_ENABLE(env->active_fpu.fcr31) | 0x20) & GET_FP_CAUSE(env->active_fpu.fcr31))
2244         do_raise_exception(env, EXCP_FPE, GETPC());
2245 }
2246
2247 static inline int ieee_ex_to_mips(int xcpt)
2248 {
2249     int ret = 0;
2250     if (xcpt) {
2251         if (xcpt & float_flag_invalid) {
2252             ret |= FP_INVALID;
2253         }
2254         if (xcpt & float_flag_overflow) {
2255             ret |= FP_OVERFLOW;
2256         }
2257         if (xcpt & float_flag_underflow) {
2258             ret |= FP_UNDERFLOW;
2259         }
2260         if (xcpt & float_flag_divbyzero) {
2261             ret |= FP_DIV0;
2262         }
2263         if (xcpt & float_flag_inexact) {
2264             ret |= FP_INEXACT;
2265         }
2266     }
2267     return ret;
2268 }
2269
2270 static inline void update_fcr31(CPUMIPSState *env, uintptr_t pc)
2271 {
2272     int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->active_fpu.fp_status));
2273
2274     SET_FP_CAUSE(env->active_fpu.fcr31, tmp);
2275
2276     if (tmp) {
2277         set_float_exception_flags(0, &env->active_fpu.fp_status);
2278
2279         if (GET_FP_ENABLE(env->active_fpu.fcr31) & tmp) {
2280             do_raise_exception(env, EXCP_FPE, pc);
2281         } else {
2282             UPDATE_FP_FLAGS(env->active_fpu.fcr31, tmp);
2283         }
2284     }
2285 }
2286
2287 /* Float support.
2288    Single precition routines have a "s" suffix, double precision a
2289    "d" suffix, 32bit integer "w", 64bit integer "l", paired single "ps",
2290    paired single lower "pl", paired single upper "pu".  */
2291
2292 /* unary operations, modifying fp status  */
2293 uint64_t helper_float_sqrt_d(CPUMIPSState *env, uint64_t fdt0)
2294 {
2295     fdt0 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2296     update_fcr31(env, GETPC());
2297     return fdt0;
2298 }
2299
2300 uint32_t helper_float_sqrt_s(CPUMIPSState *env, uint32_t fst0)
2301 {
2302     fst0 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2303     update_fcr31(env, GETPC());
2304     return fst0;
2305 }
2306
2307 uint64_t helper_float_cvtd_s(CPUMIPSState *env, uint32_t fst0)
2308 {
2309     uint64_t fdt2;
2310
2311     fdt2 = float32_to_float64(fst0, &env->active_fpu.fp_status);
2312     update_fcr31(env, GETPC());
2313     return fdt2;
2314 }
2315
2316 uint64_t helper_float_cvtd_w(CPUMIPSState *env, uint32_t wt0)
2317 {
2318     uint64_t fdt2;
2319
2320     fdt2 = int32_to_float64(wt0, &env->active_fpu.fp_status);
2321     update_fcr31(env, GETPC());
2322     return fdt2;
2323 }
2324
2325 uint64_t helper_float_cvtd_l(CPUMIPSState *env, uint64_t dt0)
2326 {
2327     uint64_t fdt2;
2328
2329     fdt2 = int64_to_float64(dt0, &env->active_fpu.fp_status);
2330     update_fcr31(env, GETPC());
2331     return fdt2;
2332 }
2333
2334 uint64_t helper_float_cvtl_d(CPUMIPSState *env, uint64_t fdt0)
2335 {
2336     uint64_t dt2;
2337
2338     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2339     if (get_float_exception_flags(&env->active_fpu.fp_status)
2340         & (float_flag_invalid | float_flag_overflow)) {
2341         dt2 = FP_TO_INT64_OVERFLOW;
2342     }
2343     update_fcr31(env, GETPC());
2344     return dt2;
2345 }
2346
2347 uint64_t helper_float_cvtl_s(CPUMIPSState *env, uint32_t fst0)
2348 {
2349     uint64_t dt2;
2350
2351     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2352     if (get_float_exception_flags(&env->active_fpu.fp_status)
2353         & (float_flag_invalid | float_flag_overflow)) {
2354         dt2 = FP_TO_INT64_OVERFLOW;
2355     }
2356     update_fcr31(env, GETPC());
2357     return dt2;
2358 }
2359
2360 uint64_t helper_float_cvtps_pw(CPUMIPSState *env, uint64_t dt0)
2361 {
2362     uint32_t fst2;
2363     uint32_t fsth2;
2364
2365     fst2 = int32_to_float32(dt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2366     fsth2 = int32_to_float32(dt0 >> 32, &env->active_fpu.fp_status);
2367     update_fcr31(env, GETPC());
2368     return ((uint64_t)fsth2 << 32) | fst2;
2369 }
2370
2371 uint64_t helper_float_cvtpw_ps(CPUMIPSState *env, uint64_t fdt0)
2372 {
2373     uint32_t wt2;
2374     uint32_t wth2;
2375     int excp, excph;
2376
2377     wt2 = float32_to_int32(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2378     excp = get_float_exception_flags(&env->active_fpu.fp_status);
2379     if (excp & (float_flag_overflow | float_flag_invalid)) {
2380         wt2 = FP_TO_INT32_OVERFLOW;
2381     }
2382
2383     set_float_exception_flags(0, &env->active_fpu.fp_status);
2384     wth2 = float32_to_int32(fdt0 >> 32, &env->active_fpu.fp_status);
2385     excph = get_float_exception_flags(&env->active_fpu.fp_status);
2386     if (excph & (float_flag_overflow | float_flag_invalid)) {
2387         wth2 = FP_TO_INT32_OVERFLOW;
2388     }
2389
2390     set_float_exception_flags(excp | excph, &env->active_fpu.fp_status);
2391     update_fcr31(env, GETPC());
2392
2393     return ((uint64_t)wth2 << 32) | wt2;
2394 }
2395
2396 uint32_t helper_float_cvts_d(CPUMIPSState *env, uint64_t fdt0)
2397 {
2398     uint32_t fst2;
2399
2400     fst2 = float64_to_float32(fdt0, &env->active_fpu.fp_status);
2401     update_fcr31(env, GETPC());
2402     return fst2;
2403 }
2404
2405 uint32_t helper_float_cvts_w(CPUMIPSState *env, uint32_t wt0)
2406 {
2407     uint32_t fst2;
2408
2409     fst2 = int32_to_float32(wt0, &env->active_fpu.fp_status);
2410     update_fcr31(env, GETPC());
2411     return fst2;
2412 }
2413
2414 uint32_t helper_float_cvts_l(CPUMIPSState *env, uint64_t dt0)
2415 {
2416     uint32_t fst2;
2417
2418     fst2 = int64_to_float32(dt0, &env->active_fpu.fp_status);
2419     update_fcr31(env, GETPC());
2420     return fst2;
2421 }
2422
2423 uint32_t helper_float_cvts_pl(CPUMIPSState *env, uint32_t wt0)
2424 {
2425     uint32_t wt2;
2426
2427     wt2 = wt0;
2428     update_fcr31(env, GETPC());
2429     return wt2;
2430 }
2431
2432 uint32_t helper_float_cvts_pu(CPUMIPSState *env, uint32_t wth0)
2433 {
2434     uint32_t wt2;
2435
2436     wt2 = wth0;
2437     update_fcr31(env, GETPC());
2438     return wt2;
2439 }
2440
2441 uint32_t helper_float_cvtw_s(CPUMIPSState *env, uint32_t fst0)
2442 {
2443     uint32_t wt2;
2444
2445     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2446     update_fcr31(env, GETPC());
2447     if (get_float_exception_flags(&env->active_fpu.fp_status)
2448         & (float_flag_invalid | float_flag_overflow)) {
2449         wt2 = FP_TO_INT32_OVERFLOW;
2450     }
2451     return wt2;
2452 }
2453
2454 uint32_t helper_float_cvtw_d(CPUMIPSState *env, uint64_t fdt0)
2455 {
2456     uint32_t wt2;
2457
2458     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2459     if (get_float_exception_flags(&env->active_fpu.fp_status)
2460         & (float_flag_invalid | float_flag_overflow)) {
2461         wt2 = FP_TO_INT32_OVERFLOW;
2462     }
2463     update_fcr31(env, GETPC());
2464     return wt2;
2465 }
2466
2467 uint64_t helper_float_roundl_d(CPUMIPSState *env, uint64_t fdt0)
2468 {
2469     uint64_t dt2;
2470
2471     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2472     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2473     restore_rounding_mode(env);
2474     if (get_float_exception_flags(&env->active_fpu.fp_status)
2475         & (float_flag_invalid | float_flag_overflow)) {
2476         dt2 = FP_TO_INT64_OVERFLOW;
2477     }
2478     update_fcr31(env, GETPC());
2479     return dt2;
2480 }
2481
2482 uint64_t helper_float_roundl_s(CPUMIPSState *env, uint32_t fst0)
2483 {
2484     uint64_t dt2;
2485
2486     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2487     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2488     restore_rounding_mode(env);
2489     if (get_float_exception_flags(&env->active_fpu.fp_status)
2490         & (float_flag_invalid | float_flag_overflow)) {
2491         dt2 = FP_TO_INT64_OVERFLOW;
2492     }
2493     update_fcr31(env, GETPC());
2494     return dt2;
2495 }
2496
2497 uint32_t helper_float_roundw_d(CPUMIPSState *env, uint64_t fdt0)
2498 {
2499     uint32_t wt2;
2500
2501     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2502     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2503     restore_rounding_mode(env);
2504     if (get_float_exception_flags(&env->active_fpu.fp_status)
2505         & (float_flag_invalid | float_flag_overflow)) {
2506         wt2 = FP_TO_INT32_OVERFLOW;
2507     }
2508     update_fcr31(env, GETPC());
2509     return wt2;
2510 }
2511
2512 uint32_t helper_float_roundw_s(CPUMIPSState *env, uint32_t fst0)
2513 {
2514     uint32_t wt2;
2515
2516     set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
2517     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2518     restore_rounding_mode(env);
2519     if (get_float_exception_flags(&env->active_fpu.fp_status)
2520         & (float_flag_invalid | float_flag_overflow)) {
2521         wt2 = FP_TO_INT32_OVERFLOW;
2522     }
2523     update_fcr31(env, GETPC());
2524     return wt2;
2525 }
2526
2527 uint64_t helper_float_truncl_d(CPUMIPSState *env, uint64_t fdt0)
2528 {
2529     uint64_t dt2;
2530
2531     dt2 = float64_to_int64_round_to_zero(fdt0, &env->active_fpu.fp_status);
2532     if (get_float_exception_flags(&env->active_fpu.fp_status)
2533         & (float_flag_invalid | float_flag_overflow)) {
2534         dt2 = FP_TO_INT64_OVERFLOW;
2535     }
2536     update_fcr31(env, GETPC());
2537     return dt2;
2538 }
2539
2540 uint64_t helper_float_truncl_s(CPUMIPSState *env, uint32_t fst0)
2541 {
2542     uint64_t dt2;
2543
2544     dt2 = float32_to_int64_round_to_zero(fst0, &env->active_fpu.fp_status);
2545     if (get_float_exception_flags(&env->active_fpu.fp_status)
2546         & (float_flag_invalid | float_flag_overflow)) {
2547         dt2 = FP_TO_INT64_OVERFLOW;
2548     }
2549     update_fcr31(env, GETPC());
2550     return dt2;
2551 }
2552
2553 uint32_t helper_float_truncw_d(CPUMIPSState *env, uint64_t fdt0)
2554 {
2555     uint32_t wt2;
2556
2557     wt2 = float64_to_int32_round_to_zero(fdt0, &env->active_fpu.fp_status);
2558     if (get_float_exception_flags(&env->active_fpu.fp_status)
2559         & (float_flag_invalid | float_flag_overflow)) {
2560         wt2 = FP_TO_INT32_OVERFLOW;
2561     }
2562     update_fcr31(env, GETPC());
2563     return wt2;
2564 }
2565
2566 uint32_t helper_float_truncw_s(CPUMIPSState *env, uint32_t fst0)
2567 {
2568     uint32_t wt2;
2569
2570     wt2 = float32_to_int32_round_to_zero(fst0, &env->active_fpu.fp_status);
2571     if (get_float_exception_flags(&env->active_fpu.fp_status)
2572         & (float_flag_invalid | float_flag_overflow)) {
2573         wt2 = FP_TO_INT32_OVERFLOW;
2574     }
2575     update_fcr31(env, GETPC());
2576     return wt2;
2577 }
2578
2579 uint64_t helper_float_ceill_d(CPUMIPSState *env, uint64_t fdt0)
2580 {
2581     uint64_t dt2;
2582
2583     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2584     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2585     restore_rounding_mode(env);
2586     if (get_float_exception_flags(&env->active_fpu.fp_status)
2587         & (float_flag_invalid | float_flag_overflow)) {
2588         dt2 = FP_TO_INT64_OVERFLOW;
2589     }
2590     update_fcr31(env, GETPC());
2591     return dt2;
2592 }
2593
2594 uint64_t helper_float_ceill_s(CPUMIPSState *env, uint32_t fst0)
2595 {
2596     uint64_t dt2;
2597
2598     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2599     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2600     restore_rounding_mode(env);
2601     if (get_float_exception_flags(&env->active_fpu.fp_status)
2602         & (float_flag_invalid | float_flag_overflow)) {
2603         dt2 = FP_TO_INT64_OVERFLOW;
2604     }
2605     update_fcr31(env, GETPC());
2606     return dt2;
2607 }
2608
2609 uint32_t helper_float_ceilw_d(CPUMIPSState *env, uint64_t fdt0)
2610 {
2611     uint32_t wt2;
2612
2613     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2614     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2615     restore_rounding_mode(env);
2616     if (get_float_exception_flags(&env->active_fpu.fp_status)
2617         & (float_flag_invalid | float_flag_overflow)) {
2618         wt2 = FP_TO_INT32_OVERFLOW;
2619     }
2620     update_fcr31(env, GETPC());
2621     return wt2;
2622 }
2623
2624 uint32_t helper_float_ceilw_s(CPUMIPSState *env, uint32_t fst0)
2625 {
2626     uint32_t wt2;
2627
2628     set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
2629     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2630     restore_rounding_mode(env);
2631     if (get_float_exception_flags(&env->active_fpu.fp_status)
2632         & (float_flag_invalid | float_flag_overflow)) {
2633         wt2 = FP_TO_INT32_OVERFLOW;
2634     }
2635     update_fcr31(env, GETPC());
2636     return wt2;
2637 }
2638
2639 uint64_t helper_float_floorl_d(CPUMIPSState *env, uint64_t fdt0)
2640 {
2641     uint64_t dt2;
2642
2643     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2644     dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
2645     restore_rounding_mode(env);
2646     if (get_float_exception_flags(&env->active_fpu.fp_status)
2647         & (float_flag_invalid | float_flag_overflow)) {
2648         dt2 = FP_TO_INT64_OVERFLOW;
2649     }
2650     update_fcr31(env, GETPC());
2651     return dt2;
2652 }
2653
2654 uint64_t helper_float_floorl_s(CPUMIPSState *env, uint32_t fst0)
2655 {
2656     uint64_t dt2;
2657
2658     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2659     dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
2660     restore_rounding_mode(env);
2661     if (get_float_exception_flags(&env->active_fpu.fp_status)
2662         & (float_flag_invalid | float_flag_overflow)) {
2663         dt2 = FP_TO_INT64_OVERFLOW;
2664     }
2665     update_fcr31(env, GETPC());
2666     return dt2;
2667 }
2668
2669 uint32_t helper_float_floorw_d(CPUMIPSState *env, uint64_t fdt0)
2670 {
2671     uint32_t wt2;
2672
2673     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2674     wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
2675     restore_rounding_mode(env);
2676     if (get_float_exception_flags(&env->active_fpu.fp_status)
2677         & (float_flag_invalid | float_flag_overflow)) {
2678         wt2 = FP_TO_INT32_OVERFLOW;
2679     }
2680     update_fcr31(env, GETPC());
2681     return wt2;
2682 }
2683
2684 uint32_t helper_float_floorw_s(CPUMIPSState *env, uint32_t fst0)
2685 {
2686     uint32_t wt2;
2687
2688     set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
2689     wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
2690     restore_rounding_mode(env);
2691     if (get_float_exception_flags(&env->active_fpu.fp_status)
2692         & (float_flag_invalid | float_flag_overflow)) {
2693         wt2 = FP_TO_INT32_OVERFLOW;
2694     }
2695     update_fcr31(env, GETPC());
2696     return wt2;
2697 }
2698
2699 /* unary operations, not modifying fp status  */
2700 #define FLOAT_UNOP(name)                                       \
2701 uint64_t helper_float_ ## name ## _d(uint64_t fdt0)                \
2702 {                                                              \
2703     return float64_ ## name(fdt0);                             \
2704 }                                                              \
2705 uint32_t helper_float_ ## name ## _s(uint32_t fst0)                \
2706 {                                                              \
2707     return float32_ ## name(fst0);                             \
2708 }                                                              \
2709 uint64_t helper_float_ ## name ## _ps(uint64_t fdt0)               \
2710 {                                                              \
2711     uint32_t wt0;                                              \
2712     uint32_t wth0;                                             \
2713                                                                \
2714     wt0 = float32_ ## name(fdt0 & 0XFFFFFFFF);                 \
2715     wth0 = float32_ ## name(fdt0 >> 32);                       \
2716     return ((uint64_t)wth0 << 32) | wt0;                       \
2717 }
2718 FLOAT_UNOP(abs)
2719 FLOAT_UNOP(chs)
2720 #undef FLOAT_UNOP
2721
2722 /* MIPS specific unary operations */
2723 uint64_t helper_float_recip_d(CPUMIPSState *env, uint64_t fdt0)
2724 {
2725     uint64_t fdt2;
2726
2727     fdt2 = float64_div(float64_one, fdt0, &env->active_fpu.fp_status);
2728     update_fcr31(env, GETPC());
2729     return fdt2;
2730 }
2731
2732 uint32_t helper_float_recip_s(CPUMIPSState *env, uint32_t fst0)
2733 {
2734     uint32_t fst2;
2735
2736     fst2 = float32_div(float32_one, fst0, &env->active_fpu.fp_status);
2737     update_fcr31(env, GETPC());
2738     return fst2;
2739 }
2740
2741 uint64_t helper_float_rsqrt_d(CPUMIPSState *env, uint64_t fdt0)
2742 {
2743     uint64_t fdt2;
2744
2745     fdt2 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2746     fdt2 = float64_div(float64_one, fdt2, &env->active_fpu.fp_status);
2747     update_fcr31(env, GETPC());
2748     return fdt2;
2749 }
2750
2751 uint32_t helper_float_rsqrt_s(CPUMIPSState *env, uint32_t fst0)
2752 {
2753     uint32_t fst2;
2754
2755     fst2 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2756     fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
2757     update_fcr31(env, GETPC());
2758     return fst2;
2759 }
2760
2761 uint64_t helper_float_recip1_d(CPUMIPSState *env, uint64_t fdt0)
2762 {
2763     uint64_t fdt2;
2764
2765     fdt2 = float64_div(float64_one, fdt0, &env->active_fpu.fp_status);
2766     update_fcr31(env, GETPC());
2767     return fdt2;
2768 }
2769
2770 uint32_t helper_float_recip1_s(CPUMIPSState *env, uint32_t fst0)
2771 {
2772     uint32_t fst2;
2773
2774     fst2 = float32_div(float32_one, fst0, &env->active_fpu.fp_status);
2775     update_fcr31(env, GETPC());
2776     return fst2;
2777 }
2778
2779 uint64_t helper_float_recip1_ps(CPUMIPSState *env, uint64_t fdt0)
2780 {
2781     uint32_t fst2;
2782     uint32_t fsth2;
2783
2784     fst2 = float32_div(float32_one, fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2785     fsth2 = float32_div(float32_one, fdt0 >> 32, &env->active_fpu.fp_status);
2786     update_fcr31(env, GETPC());
2787     return ((uint64_t)fsth2 << 32) | fst2;
2788 }
2789
2790 uint64_t helper_float_rsqrt1_d(CPUMIPSState *env, uint64_t fdt0)
2791 {
2792     uint64_t fdt2;
2793
2794     fdt2 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
2795     fdt2 = float64_div(float64_one, fdt2, &env->active_fpu.fp_status);
2796     update_fcr31(env, GETPC());
2797     return fdt2;
2798 }
2799
2800 uint32_t helper_float_rsqrt1_s(CPUMIPSState *env, uint32_t fst0)
2801 {
2802     uint32_t fst2;
2803
2804     fst2 = float32_sqrt(fst0, &env->active_fpu.fp_status);
2805     fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
2806     update_fcr31(env, GETPC());
2807     return fst2;
2808 }
2809
2810 uint64_t helper_float_rsqrt1_ps(CPUMIPSState *env, uint64_t fdt0)
2811 {
2812     uint32_t fst2;
2813     uint32_t fsth2;
2814
2815     fst2 = float32_sqrt(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
2816     fsth2 = float32_sqrt(fdt0 >> 32, &env->active_fpu.fp_status);
2817     fst2 = float32_div(float32_one, fst2, &env->active_fpu.fp_status);
2818     fsth2 = float32_div(float32_one, fsth2, &env->active_fpu.fp_status);
2819     update_fcr31(env, GETPC());
2820     return ((uint64_t)fsth2 << 32) | fst2;
2821 }
2822
2823 #define FLOAT_OP(name, p) void helper_float_##name##_##p(CPUMIPSState *env)
2824
2825 /* binary operations */
2826 #define FLOAT_BINOP(name)                                          \
2827 uint64_t helper_float_ ## name ## _d(CPUMIPSState *env,            \
2828                                      uint64_t fdt0, uint64_t fdt1) \
2829 {                                                                  \
2830     uint64_t dt2;                                                  \
2831                                                                    \
2832     dt2 = float64_ ## name (fdt0, fdt1, &env->active_fpu.fp_status);     \
2833     update_fcr31(env, GETPC());                                    \
2834     return dt2;                                                    \
2835 }                                                                  \
2836                                                                    \
2837 uint32_t helper_float_ ## name ## _s(CPUMIPSState *env,            \
2838                                      uint32_t fst0, uint32_t fst1) \
2839 {                                                                  \
2840     uint32_t wt2;                                                  \
2841                                                                    \
2842     wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status);     \
2843     update_fcr31(env, GETPC());                                    \
2844     return wt2;                                                    \
2845 }                                                                  \
2846                                                                    \
2847 uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env,           \
2848                                       uint64_t fdt0,               \
2849                                       uint64_t fdt1)               \
2850 {                                                                  \
2851     uint32_t fst0 = fdt0 & 0XFFFFFFFF;                             \
2852     uint32_t fsth0 = fdt0 >> 32;                                   \
2853     uint32_t fst1 = fdt1 & 0XFFFFFFFF;                             \
2854     uint32_t fsth1 = fdt1 >> 32;                                   \
2855     uint32_t wt2;                                                  \
2856     uint32_t wth2;                                                 \
2857                                                                    \
2858     wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status);     \
2859     wth2 = float32_ ## name (fsth0, fsth1, &env->active_fpu.fp_status);  \
2860     update_fcr31(env, GETPC());                                    \
2861     return ((uint64_t)wth2 << 32) | wt2;                           \
2862 }
2863
2864 FLOAT_BINOP(add)
2865 FLOAT_BINOP(sub)
2866 FLOAT_BINOP(mul)
2867 FLOAT_BINOP(div)
2868 #undef FLOAT_BINOP
2869
2870 /* FMA based operations */
2871 #define FLOAT_FMA(name, type)                                        \
2872 uint64_t helper_float_ ## name ## _d(CPUMIPSState *env,              \
2873                                      uint64_t fdt0, uint64_t fdt1,   \
2874                                      uint64_t fdt2)                  \
2875 {                                                                    \
2876     fdt0 = float64_muladd(fdt0, fdt1, fdt2, type,                    \
2877                          &env->active_fpu.fp_status);                \
2878     update_fcr31(env, GETPC());                                      \
2879     return fdt0;                                                     \
2880 }                                                                    \
2881                                                                      \
2882 uint32_t helper_float_ ## name ## _s(CPUMIPSState *env,              \
2883                                      uint32_t fst0, uint32_t fst1,   \
2884                                      uint32_t fst2)                  \
2885 {                                                                    \
2886     fst0 = float32_muladd(fst0, fst1, fst2, type,                    \
2887                          &env->active_fpu.fp_status);                \
2888     update_fcr31(env, GETPC());                                      \
2889     return fst0;                                                     \
2890 }                                                                    \
2891                                                                      \
2892 uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env,             \
2893                                       uint64_t fdt0, uint64_t fdt1,  \
2894                                       uint64_t fdt2)                 \
2895 {                                                                    \
2896     uint32_t fst0 = fdt0 & 0XFFFFFFFF;                               \
2897     uint32_t fsth0 = fdt0 >> 32;                                     \
2898     uint32_t fst1 = fdt1 & 0XFFFFFFFF;                               \
2899     uint32_t fsth1 = fdt1 >> 32;                                     \
2900     uint32_t fst2 = fdt2 & 0XFFFFFFFF;                               \
2901     uint32_t fsth2 = fdt2 >> 32;                                     \
2902                                                                      \
2903     fst0 = float32_muladd(fst0, fst1, fst2, type,                    \
2904                           &env->active_fpu.fp_status);               \
2905     fsth0 = float32_muladd(fsth0, fsth1, fsth2, type,                \
2906                            &env->active_fpu.fp_status);              \
2907     update_fcr31(env, GETPC());                                      \
2908     return ((uint64_t)fsth0 << 32) | fst0;                           \
2909 }
2910 FLOAT_FMA(madd, 0)
2911 FLOAT_FMA(msub, float_muladd_negate_c)
2912 FLOAT_FMA(nmadd, float_muladd_negate_result)
2913 FLOAT_FMA(nmsub, float_muladd_negate_result | float_muladd_negate_c)
2914 #undef FLOAT_FMA
2915
2916 /* MIPS specific binary operations */
2917 uint64_t helper_float_recip2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
2918 {
2919     fdt2 = float64_mul(fdt0, fdt2, &env->active_fpu.fp_status);
2920     fdt2 = float64_chs(float64_sub(fdt2, float64_one, &env->active_fpu.fp_status));
2921     update_fcr31(env, GETPC());
2922     return fdt2;
2923 }
2924
2925 uint32_t helper_float_recip2_s(CPUMIPSState *env, uint32_t fst0, uint32_t fst2)
2926 {
2927     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
2928     fst2 = float32_chs(float32_sub(fst2, float32_one, &env->active_fpu.fp_status));
2929     update_fcr31(env, GETPC());
2930     return fst2;
2931 }
2932
2933 uint64_t helper_float_recip2_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
2934 {
2935     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
2936     uint32_t fsth0 = fdt0 >> 32;
2937     uint32_t fst2 = fdt2 & 0XFFFFFFFF;
2938     uint32_t fsth2 = fdt2 >> 32;
2939
2940     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
2941     fsth2 = float32_mul(fsth0, fsth2, &env->active_fpu.fp_status);
2942     fst2 = float32_chs(float32_sub(fst2, float32_one, &env->active_fpu.fp_status));
2943     fsth2 = float32_chs(float32_sub(fsth2, float32_one, &env->active_fpu.fp_status));
2944     update_fcr31(env, GETPC());
2945     return ((uint64_t)fsth2 << 32) | fst2;
2946 }
2947
2948 uint64_t helper_float_rsqrt2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
2949 {
2950     fdt2 = float64_mul(fdt0, fdt2, &env->active_fpu.fp_status);
2951     fdt2 = float64_sub(fdt2, float64_one, &env->active_fpu.fp_status);
2952     fdt2 = float64_chs(float64_div(fdt2, FLOAT_TWO64, &env->active_fpu.fp_status));
2953     update_fcr31(env, GETPC());
2954     return fdt2;
2955 }
2956
2957 uint32_t helper_float_rsqrt2_s(CPUMIPSState *env, uint32_t fst0, uint32_t fst2)
2958 {
2959     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
2960     fst2 = float32_sub(fst2, float32_one, &env->active_fpu.fp_status);
2961     fst2 = float32_chs(float32_div(fst2, FLOAT_TWO32, &env->active_fpu.fp_status));
2962     update_fcr31(env, GETPC());
2963     return fst2;
2964 }
2965
2966 uint64_t helper_float_rsqrt2_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
2967 {
2968     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
2969     uint32_t fsth0 = fdt0 >> 32;
2970     uint32_t fst2 = fdt2 & 0XFFFFFFFF;
2971     uint32_t fsth2 = fdt2 >> 32;
2972
2973     fst2 = float32_mul(fst0, fst2, &env->active_fpu.fp_status);
2974     fsth2 = float32_mul(fsth0, fsth2, &env->active_fpu.fp_status);
2975     fst2 = float32_sub(fst2, float32_one, &env->active_fpu.fp_status);
2976     fsth2 = float32_sub(fsth2, float32_one, &env->active_fpu.fp_status);
2977     fst2 = float32_chs(float32_div(fst2, FLOAT_TWO32, &env->active_fpu.fp_status));
2978     fsth2 = float32_chs(float32_div(fsth2, FLOAT_TWO32, &env->active_fpu.fp_status));
2979     update_fcr31(env, GETPC());
2980     return ((uint64_t)fsth2 << 32) | fst2;
2981 }
2982
2983 uint64_t helper_float_addr_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt1)
2984 {
2985     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
2986     uint32_t fsth0 = fdt0 >> 32;
2987     uint32_t fst1 = fdt1 & 0XFFFFFFFF;
2988     uint32_t fsth1 = fdt1 >> 32;
2989     uint32_t fst2;
2990     uint32_t fsth2;
2991
2992     fst2 = float32_add (fst0, fsth0, &env->active_fpu.fp_status);
2993     fsth2 = float32_add (fst1, fsth1, &env->active_fpu.fp_status);
2994     update_fcr31(env, GETPC());
2995     return ((uint64_t)fsth2 << 32) | fst2;
2996 }
2997
2998 uint64_t helper_float_mulr_ps(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt1)
2999 {
3000     uint32_t fst0 = fdt0 & 0XFFFFFFFF;
3001     uint32_t fsth0 = fdt0 >> 32;
3002     uint32_t fst1 = fdt1 & 0XFFFFFFFF;
3003     uint32_t fsth1 = fdt1 >> 32;
3004     uint32_t fst2;
3005     uint32_t fsth2;
3006
3007     fst2 = float32_mul (fst0, fsth0, &env->active_fpu.fp_status);
3008     fsth2 = float32_mul (fst1, fsth1, &env->active_fpu.fp_status);
3009     update_fcr31(env, GETPC());
3010     return ((uint64_t)fsth2 << 32) | fst2;
3011 }
3012
3013 /* compare operations */
3014 #define FOP_COND_D(op, cond)                                   \
3015 void helper_cmp_d_ ## op(CPUMIPSState *env, uint64_t fdt0,     \
3016                          uint64_t fdt1, int cc)                \
3017 {                                                              \
3018     int c;                                                     \
3019     c = cond;                                                  \
3020     update_fcr31(env, GETPC());                                \
3021     if (c)                                                     \
3022         SET_FP_COND(cc, env->active_fpu);                      \
3023     else                                                       \
3024         CLEAR_FP_COND(cc, env->active_fpu);                    \
3025 }                                                              \
3026 void helper_cmpabs_d_ ## op(CPUMIPSState *env, uint64_t fdt0,  \
3027                             uint64_t fdt1, int cc)             \
3028 {                                                              \
3029     int c;                                                     \
3030     fdt0 = float64_abs(fdt0);                                  \
3031     fdt1 = float64_abs(fdt1);                                  \
3032     c = cond;                                                  \
3033     update_fcr31(env, GETPC());                                \
3034     if (c)                                                     \
3035         SET_FP_COND(cc, env->active_fpu);                      \
3036     else                                                       \
3037         CLEAR_FP_COND(cc, env->active_fpu);                    \
3038 }
3039
3040 /* NOTE: the comma operator will make "cond" to eval to false,
3041  * but float64_unordered_quiet() is still called. */
3042 FOP_COND_D(f,   (float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status), 0))
3043 FOP_COND_D(un,  float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status))
3044 FOP_COND_D(eq,  float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3045 FOP_COND_D(ueq, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_eq_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3046 FOP_COND_D(olt, float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3047 FOP_COND_D(ult, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_lt_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3048 FOP_COND_D(ole, float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3049 FOP_COND_D(ule, float64_unordered_quiet(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_le_quiet(fdt0, fdt1, &env->active_fpu.fp_status))
3050 /* NOTE: the comma operator will make "cond" to eval to false,
3051  * but float64_unordered() is still called. */
3052 FOP_COND_D(sf,  (float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status), 0))
3053 FOP_COND_D(ngle,float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status))
3054 FOP_COND_D(seq, float64_eq(fdt0, fdt1, &env->active_fpu.fp_status))
3055 FOP_COND_D(ngl, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_eq(fdt0, fdt1, &env->active_fpu.fp_status))
3056 FOP_COND_D(lt,  float64_lt(fdt0, fdt1, &env->active_fpu.fp_status))
3057 FOP_COND_D(nge, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_lt(fdt0, fdt1, &env->active_fpu.fp_status))
3058 FOP_COND_D(le,  float64_le(fdt0, fdt1, &env->active_fpu.fp_status))
3059 FOP_COND_D(ngt, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status)  || float64_le(fdt0, fdt1, &env->active_fpu.fp_status))
3060
3061 #define FOP_COND_S(op, cond)                                   \
3062 void helper_cmp_s_ ## op(CPUMIPSState *env, uint32_t fst0,     \
3063                          uint32_t fst1, int cc)                \
3064 {                                                              \
3065     int c;                                                     \
3066     c = cond;                                                  \
3067     update_fcr31(env, GETPC());                                \
3068     if (c)                                                     \
3069         SET_FP_COND(cc, env->active_fpu);                      \
3070     else                                                       \
3071         CLEAR_FP_COND(cc, env->active_fpu);                    \
3072 }                                                              \
3073 void helper_cmpabs_s_ ## op(CPUMIPSState *env, uint32_t fst0,  \
3074                             uint32_t fst1, int cc)             \
3075 {                                                              \
3076     int c;                                                     \
3077     fst0 = float32_abs(fst0);                                  \
3078     fst1 = float32_abs(fst1);                                  \
3079     c = cond;                                                  \
3080     update_fcr31(env, GETPC());                                \
3081     if (c)                                                     \
3082         SET_FP_COND(cc, env->active_fpu);                      \
3083     else                                                       \
3084         CLEAR_FP_COND(cc, env->active_fpu);                    \
3085 }
3086
3087 /* NOTE: the comma operator will make "cond" to eval to false,
3088  * but float32_unordered_quiet() is still called. */
3089 FOP_COND_S(f,   (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0))
3090 FOP_COND_S(un,  float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status))
3091 FOP_COND_S(eq,  float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status))
3092 FOP_COND_S(ueq, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)  || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status))
3093 FOP_COND_S(olt, float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status))
3094 FOP_COND_S(ult, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)  || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status))
3095 FOP_COND_S(ole, float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status))
3096 FOP_COND_S(ule, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)  || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status))
3097 /* NOTE: the comma operator will make "cond" to eval to false,
3098  * but float32_unordered() is still called. */
3099 FOP_COND_S(sf,  (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0))
3100 FOP_COND_S(ngle,float32_unordered(fst1, fst0, &env->active_fpu.fp_status))
3101 FOP_COND_S(seq, float32_eq(fst0, fst1, &env->active_fpu.fp_status))
3102 FOP_COND_S(ngl, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)  || float32_eq(fst0, fst1, &env->active_fpu.fp_status))
3103 FOP_COND_S(lt,  float32_lt(fst0, fst1, &env->active_fpu.fp_status))
3104 FOP_COND_S(nge, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)  || float32_lt(fst0, fst1, &env->active_fpu.fp_status))
3105 FOP_COND_S(le,  float32_le(fst0, fst1, &env->active_fpu.fp_status))
3106 FOP_COND_S(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)  || float32_le(fst0, fst1, &env->active_fpu.fp_status))
3107
3108 #define FOP_COND_PS(op, condl, condh)                           \
3109 void helper_cmp_ps_ ## op(CPUMIPSState *env, uint64_t fdt0,     \
3110                           uint64_t fdt1, int cc)                \
3111 {                                                               \
3112     uint32_t fst0, fsth0, fst1, fsth1;                          \
3113     int ch, cl;                                                 \
3114     fst0 = fdt0 & 0XFFFFFFFF;                                   \
3115     fsth0 = fdt0 >> 32;                                         \
3116     fst1 = fdt1 & 0XFFFFFFFF;                                   \
3117     fsth1 = fdt1 >> 32;                                         \
3118     cl = condl;                                                 \
3119     ch = condh;                                                 \
3120     update_fcr31(env, GETPC());                                 \
3121     if (cl)                                                     \
3122         SET_FP_COND(cc, env->active_fpu);                       \
3123     else                                                        \
3124         CLEAR_FP_COND(cc, env->active_fpu);                     \
3125     if (ch)                                                     \
3126         SET_FP_COND(cc + 1, env->active_fpu);                   \
3127     else                                                        \
3128         CLEAR_FP_COND(cc + 1, env->active_fpu);                 \
3129 }                                                               \
3130 void helper_cmpabs_ps_ ## op(CPUMIPSState *env, uint64_t fdt0,  \
3131                              uint64_t fdt1, int cc)             \
3132 {                                                               \
3133     uint32_t fst0, fsth0, fst1, fsth1;                          \
3134     int ch, cl;                                                 \
3135     fst0 = float32_abs(fdt0 & 0XFFFFFFFF);                      \
3136     fsth0 = float32_abs(fdt0 >> 32);                            \
3137     fst1 = float32_abs(fdt1 & 0XFFFFFFFF);                      \
3138     fsth1 = float32_abs(fdt1 >> 32);                            \
3139     cl = condl;                                                 \
3140     ch = condh;                                                 \
3141     update_fcr31(env, GETPC());                                 \
3142     if (cl)                                                     \
3143         SET_FP_COND(cc, env->active_fpu);                       \
3144     else                                                        \
3145         CLEAR_FP_COND(cc, env->active_fpu);                     \
3146     if (ch)                                                     \
3147         SET_FP_COND(cc + 1, env->active_fpu);                   \
3148     else                                                        \
3149         CLEAR_FP_COND(cc + 1, env->active_fpu);                 \
3150 }
3151
3152 /* NOTE: the comma operator will make "cond" to eval to false,
3153  * but float32_unordered_quiet() is still called. */
3154 FOP_COND_PS(f,   (float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status), 0),
3155                  (float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status), 0))
3156 FOP_COND_PS(un,  float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status),
3157                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status))
3158 FOP_COND_PS(eq,  float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status),
3159                  float32_eq_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3160 FOP_COND_PS(ueq, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)    || float32_eq_quiet(fst0, fst1, &env->active_fpu.fp_status),
3161                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_eq_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3162 FOP_COND_PS(olt, float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status),
3163                  float32_lt_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3164 FOP_COND_PS(ult, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)    || float32_lt_quiet(fst0, fst1, &env->active_fpu.fp_status),
3165                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_lt_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3166 FOP_COND_PS(ole, float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status),
3167                  float32_le_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3168 FOP_COND_PS(ule, float32_unordered_quiet(fst1, fst0, &env->active_fpu.fp_status)    || float32_le_quiet(fst0, fst1, &env->active_fpu.fp_status),
3169                  float32_unordered_quiet(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_le_quiet(fsth0, fsth1, &env->active_fpu.fp_status))
3170 /* NOTE: the comma operator will make "cond" to eval to false,
3171  * but float32_unordered() is still called. */
3172 FOP_COND_PS(sf,  (float32_unordered(fst1, fst0, &env->active_fpu.fp_status), 0),
3173                  (float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status), 0))
3174 FOP_COND_PS(ngle,float32_unordered(fst1, fst0, &env->active_fpu.fp_status),
3175                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status))
3176 FOP_COND_PS(seq, float32_eq(fst0, fst1, &env->active_fpu.fp_status),
3177                  float32_eq(fsth0, fsth1, &env->active_fpu.fp_status))
3178 FOP_COND_PS(ngl, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_eq(fst0, fst1, &env->active_fpu.fp_status),
3179                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_eq(fsth0, fsth1, &env->active_fpu.fp_status))
3180 FOP_COND_PS(lt,  float32_lt(fst0, fst1, &env->active_fpu.fp_status),
3181                  float32_lt(fsth0, fsth1, &env->active_fpu.fp_status))
3182 FOP_COND_PS(nge, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_lt(fst0, fst1, &env->active_fpu.fp_status),
3183                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_lt(fsth0, fsth1, &env->active_fpu.fp_status))
3184 FOP_COND_PS(le,  float32_le(fst0, fst1, &env->active_fpu.fp_status),
3185                  float32_le(fsth0, fsth1, &env->active_fpu.fp_status))
3186 FOP_COND_PS(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_le(fst0, fst1, &env->active_fpu.fp_status),
3187                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_le(fsth0, fsth1, &env->active_fpu.fp_status))