target-mips/cpu.h

   1 #if !defined (__MIPS_CPU_H__)
   2 #define __MIPS_CPU_H__
   3
   4 #define TARGET_HAS_ICE 1
   5
   6 #define ELF_MACHINE     EM_MIPS
   7
   8 #include "config.h"
   9 #include "mips-defs.h"
  10 #include "cpu-defs.h"
  11 #include "softfloat.h"
  12
  13 // uint_fast8_t and uint_fast16_t not in <sys/int_types.h>
  14 // XXX: move that elsewhere
  15 #if defined(HOST_SOLARIS) && HOST_SOLARIS < 10
  16 typedef unsigned char           uint_fast8_t;
  17 typedef unsigned int            uint_fast16_t;
  18 #endif
  19
  20 struct CPUMIPSState;
  21
  22 typedef struct r4k_tlb_t r4k_tlb_t;
  23 struct r4k_tlb_t {
  24     target_ulong VPN;
  25     uint32_t PageMask;
  26     uint_fast8_t ASID;
  27     uint_fast16_t G:1;
  28     uint_fast16_t C0:3;
  29     uint_fast16_t C1:3;
  30     uint_fast16_t V0:1;
  31     uint_fast16_t V1:1;
  32     uint_fast16_t D0:1;
  33     uint_fast16_t D1:1;
  34     target_ulong PFN[2];
  35 };
  36
  37 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
  38 struct CPUMIPSTLBContext {
  39     uint32_t nb_tlb;
  40     uint32_t tlb_in_use;
  41     int (*map_address) (struct CPUMIPSState *env, target_ulong *physical, int *prot, target_ulong address, int rw, int access_type);
  42     void (*do_tlbwi) (void);
  43     void (*do_tlbwr) (void);
  44     void (*do_tlbp) (void);
  45     void (*do_tlbr) (void);
  46     union {
  47         struct {
  48             r4k_tlb_t tlb[MIPS_TLB_MAX];
  49         } r4k;
  50     } mmu;
  51 };
  52
  53 typedef union fpr_t fpr_t;
  54 union fpr_t {
  55     float64  fd;   /* ieee double precision */
  56     float32  fs[2];/* ieee single precision */
  57     uint64_t d;    /* binary double fixed-point */
  58     uint32_t w[2]; /* binary single fixed-point */
  59 };
  60 /* define FP_ENDIAN_IDX to access the same location
  61  * in the fpr_t union regardless of the host endianess
  62  */
  63 #if defined(WORDS_BIGENDIAN)
  64 #  define FP_ENDIAN_IDX 1
  65 #else
  66 #  define FP_ENDIAN_IDX 0
  67 #endif
  68
  69 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
  70 struct CPUMIPSFPUContext {
  71     /* Floating point registers */
  72     fpr_t fpr[32];
  73     float_status fp_status;
  74     /* fpu implementation/revision register (fir) */
  75     uint32_t fcr0;
  76 #define FCR0_F64 22
  77 #define FCR0_L 21
  78 #define FCR0_W 20
  79 #define FCR0_3D 19
  80 #define FCR0_PS 18
  81 #define FCR0_D 17
  82 #define FCR0_S 16
  83 #define FCR0_PRID 8
  84 #define FCR0_REV 0
  85     /* fcsr */
  86     uint32_t fcr31;
  87 #define SET_FP_COND(num,env)     do { ((env)->fcr31) |= ((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
  88 #define CLEAR_FP_COND(num,env)   do { ((env)->fcr31) &= ~((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
  89 #define GET_FP_COND(env)         ((((env)->fcr31 >> 24) & 0xfe) | (((env)->fcr31 >> 23) & 0x1))
  90 #define GET_FP_CAUSE(reg)        (((reg) >> 12) & 0x3f)
  91 #define GET_FP_ENABLE(reg)       (((reg) >>  7) & 0x1f)
  92 #define GET_FP_FLAGS(reg)        (((reg) >>  2) & 0x1f)
  93 #define SET_FP_CAUSE(reg,v)      do { (reg) = ((reg) & ~(0x3f << 12)) | ((v & 0x3f) << 12); } while(0)
  94 #define SET_FP_ENABLE(reg,v)     do { (reg) = ((reg) & ~(0x1f <<  7)) | ((v & 0x1f) << 7); } while(0)
  95 #define SET_FP_FLAGS(reg,v)      do { (reg) = ((reg) & ~(0x1f <<  2)) | ((v & 0x1f) << 2); } while(0)
  96 #define UPDATE_FP_FLAGS(reg,v)   do { (reg) |= ((v & 0x1f) << 2); } while(0)
  97 #define FP_INEXACT        1
  98 #define FP_UNDERFLOW      2
  99 #define FP_OVERFLOW       4
 100 #define FP_DIV0           8
 101 #define FP_INVALID        16
 102 #define FP_UNIMPLEMENTED  32
 103 };
 104
 105 #define NB_MMU_MODES 3
 106
 107 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
 108 struct CPUMIPSMVPContext {
 109     int32_t CP0_MVPControl;
 110 #define CP0MVPCo_CPA    3
 111 #define CP0MVPCo_STLB   2
 112 #define CP0MVPCo_VPC    1
 113 #define CP0MVPCo_EVP    0
 114     int32_t CP0_MVPConf0;
 115 #define CP0MVPC0_M      31
 116 #define CP0MVPC0_TLBS   29
 117 #define CP0MVPC0_GS     28
 118 #define CP0MVPC0_PCP    27
 119 #define CP0MVPC0_PTLBE  16
 120 #define CP0MVPC0_TCA    15
 121 #define CP0MVPC0_PVPE   10
 122 #define CP0MVPC0_PTC    0
 123     int32_t CP0_MVPConf1;
 124 #define CP0MVPC1_CIM    31
 125 #define CP0MVPC1_CIF    30
 126 #define CP0MVPC1_PCX    20
 127 #define CP0MVPC1_PCP2   10
 128 #define CP0MVPC1_PCP1   0
 129 };
 130
 131 typedef struct mips_def_t mips_def_t;
 132
 133 #define MIPS_SHADOW_SET_MAX 16
 134 #define MIPS_TC_MAX 5
 135 #define MIPS_DSP_ACC 4
 136
 137 typedef struct TCState TCState;
 138 struct TCState {
 139     target_ulong gpr[32];
 140     target_ulong PC;
 141     target_ulong HI[MIPS_DSP_ACC];
 142     target_ulong LO[MIPS_DSP_ACC];
 143     target_ulong ACX[MIPS_DSP_ACC];
 144     target_ulong DSPControl;
 145     int32_t CP0_TCStatus;
 146 #define CP0TCSt_TCU3    31
 147 #define CP0TCSt_TCU2    30
 148 #define CP0TCSt_TCU1    29
 149 #define CP0TCSt_TCU0    28
 150 #define CP0TCSt_TMX     27
 151 #define CP0TCSt_RNST    23
 152 #define CP0TCSt_TDS     21
 153 #define CP0TCSt_DT      20
 154 #define CP0TCSt_DA      15
 155 #define CP0TCSt_A       13
 156 #define CP0TCSt_TKSU    11
 157 #define CP0TCSt_IXMT    10
 158 #define CP0TCSt_TASID   0
 159     int32_t CP0_TCBind;
 160 #define CP0TCBd_CurTC   21
 161 #define CP0TCBd_TBE     17
 162 #define CP0TCBd_CurVPE  0
 163     target_ulong CP0_TCHalt;
 164     target_ulong CP0_TCContext;
 165     target_ulong CP0_TCSchedule;
 166     target_ulong CP0_TCScheFBack;
 167     int32_t CP0_Debug_tcstatus;
 168 };
 169
 170 typedef struct CPUMIPSState CPUMIPSState;
 171 struct CPUMIPSState {
 172     TCState active_tc;
 173
 174     CPUMIPSMVPContext *mvp;
 175     CPUMIPSTLBContext *tlb;
 176     CPUMIPSFPUContext *fpu;
 177     uint32_t current_tc;
 178
 179     uint32_t SEGBITS;
 180     uint32_t PABITS;
 181     target_ulong SEGMask;
 182     target_ulong PAMask;
 183
 184     int32_t CP0_Index;
 185     /* CP0_MVP* are per MVP registers. */
 186     int32_t CP0_Random;
 187     int32_t CP0_VPEControl;
 188 #define CP0VPECo_YSI    21
 189 #define CP0VPECo_GSI    20
 190 #define CP0VPECo_EXCPT  16
 191 #define CP0VPECo_TE     15
 192 #define CP0VPECo_TargTC 0
 193     int32_t CP0_VPEConf0;
 194 #define CP0VPEC0_M      31
 195 #define CP0VPEC0_XTC    21
 196 #define CP0VPEC0_TCS    19
 197 #define CP0VPEC0_SCS    18
 198 #define CP0VPEC0_DSC    17
 199 #define CP0VPEC0_ICS    16
 200 #define CP0VPEC0_MVP    1
 201 #define CP0VPEC0_VPA    0
 202     int32_t CP0_VPEConf1;
 203 #define CP0VPEC1_NCX    20
 204 #define CP0VPEC1_NCP2   10
 205 #define CP0VPEC1_NCP1   0
 206     target_ulong CP0_YQMask;
 207     target_ulong CP0_VPESchedule;
 208     target_ulong CP0_VPEScheFBack;
 209     int32_t CP0_VPEOpt;
 210 #define CP0VPEOpt_IWX7  15
 211 #define CP0VPEOpt_IWX6  14
 212 #define CP0VPEOpt_IWX5  13
 213 #define CP0VPEOpt_IWX4  12
 214 #define CP0VPEOpt_IWX3  11
 215 #define CP0VPEOpt_IWX2  10
 216 #define CP0VPEOpt_IWX1  9
 217 #define CP0VPEOpt_IWX0  8
 218 #define CP0VPEOpt_DWX7  7
 219 #define CP0VPEOpt_DWX6  6
 220 #define CP0VPEOpt_DWX5  5
 221 #define CP0VPEOpt_DWX4  4
 222 #define CP0VPEOpt_DWX3  3
 223 #define CP0VPEOpt_DWX2  2
 224 #define CP0VPEOpt_DWX1  1
 225 #define CP0VPEOpt_DWX0  0
 226     target_ulong CP0_EntryLo0;
 227     target_ulong CP0_EntryLo1;
 228     target_ulong CP0_Context;
 229     int32_t CP0_PageMask;
 230     int32_t CP0_PageGrain;
 231     int32_t CP0_Wired;
 232     int32_t CP0_SRSConf0_rw_bitmask;
 233     int32_t CP0_SRSConf0;
 234 #define CP0SRSC0_M      31
 235 #define CP0SRSC0_SRS3   20
 236 #define CP0SRSC0_SRS2   10
 237 #define CP0SRSC0_SRS1   0
 238     int32_t CP0_SRSConf1_rw_bitmask;
 239     int32_t CP0_SRSConf1;
 240 #define CP0SRSC1_M      31
 241 #define CP0SRSC1_SRS6   20
 242 #define CP0SRSC1_SRS5   10
 243 #define CP0SRSC1_SRS4   0
 244     int32_t CP0_SRSConf2_rw_bitmask;
 245     int32_t CP0_SRSConf2;
 246 #define CP0SRSC2_M      31
 247 #define CP0SRSC2_SRS9   20
 248 #define CP0SRSC2_SRS8   10
 249 #define CP0SRSC2_SRS7   0
 250     int32_t CP0_SRSConf3_rw_bitmask;
 251     int32_t CP0_SRSConf3;
 252 #define CP0SRSC3_M      31
 253 #define CP0SRSC3_SRS12  20
 254 #define CP0SRSC3_SRS11  10
 255 #define CP0SRSC3_SRS10  0
 256     int32_t CP0_SRSConf4_rw_bitmask;
 257     int32_t CP0_SRSConf4;
 258 #define CP0SRSC4_SRS15  20
 259 #define CP0SRSC4_SRS14  10
 260 #define CP0SRSC4_SRS13  0
 261     int32_t CP0_HWREna;
 262     target_ulong CP0_BadVAddr;
 263     int32_t CP0_Count;
 264     target_ulong CP0_EntryHi;
 265     int32_t CP0_Compare;
 266     int32_t CP0_Status;
 267 #define CP0St_CU3   31
 268 #define CP0St_CU2   30
 269 #define CP0St_CU1   29
 270 #define CP0St_CU0   28
 271 #define CP0St_RP    27
 272 #define CP0St_FR    26
 273 #define CP0St_RE    25
 274 #define CP0St_MX    24
 275 #define CP0St_PX    23
 276 #define CP0St_BEV   22
 277 #define CP0St_TS    21
 278 #define CP0St_SR    20
 279 #define CP0St_NMI   19
 280 #define CP0St_IM    8
 281 #define CP0St_KX    7
 282 #define CP0St_SX    6
 283 #define CP0St_UX    5
 284 #define CP0St_KSU   3
 285 #define CP0St_ERL   2
 286 #define CP0St_EXL   1
 287 #define CP0St_IE    0
 288     int32_t CP0_IntCtl;
 289 #define CP0IntCtl_IPTI 29
 290 #define CP0IntCtl_IPPC1 26
 291 #define CP0IntCtl_VS 5
 292     int32_t CP0_SRSCtl;
 293 #define CP0SRSCtl_HSS 26
 294 #define CP0SRSCtl_EICSS 18
 295 #define CP0SRSCtl_ESS 12
 296 #define CP0SRSCtl_PSS 6
 297 #define CP0SRSCtl_CSS 0
 298     int32_t CP0_SRSMap;
 299 #define CP0SRSMap_SSV7 28
 300 #define CP0SRSMap_SSV6 24
 301 #define CP0SRSMap_SSV5 20
 302 #define CP0SRSMap_SSV4 16
 303 #define CP0SRSMap_SSV3 12
 304 #define CP0SRSMap_SSV2 8
 305 #define CP0SRSMap_SSV1 4
 306 #define CP0SRSMap_SSV0 0
 307     int32_t CP0_Cause;
 308 #define CP0Ca_BD   31
 309 #define CP0Ca_TI   30
 310 #define CP0Ca_CE   28
 311 #define CP0Ca_DC   27
 312 #define CP0Ca_PCI  26
 313 #define CP0Ca_IV   23
 314 #define CP0Ca_WP   22
 315 #define CP0Ca_IP    8
 316 #define CP0Ca_IP_mask 0x0000FF00
 317 #define CP0Ca_EC    2
 318     target_ulong CP0_EPC;
 319     int32_t CP0_PRid;
 320     int32_t CP0_EBase;
 321     int32_t CP0_Config0;
 322 #define CP0C0_M    31
 323 #define CP0C0_K23  28
 324 #define CP0C0_KU   25
 325 #define CP0C0_MDU  20
 326 #define CP0C0_MM   17
 327 #define CP0C0_BM   16
 328 #define CP0C0_BE   15
 329 #define CP0C0_AT   13
 330 #define CP0C0_AR   10
 331 #define CP0C0_MT   7
 332 #define CP0C0_VI   3
 333 #define CP0C0_K0   0
 334     int32_t CP0_Config1;
 335 #define CP0C1_M    31
 336 #define CP0C1_MMU  25
 337 #define CP0C1_IS   22
 338 #define CP0C1_IL   19
 339 #define CP0C1_IA   16
 340 #define CP0C1_DS   13
 341 #define CP0C1_DL   10
 342 #define CP0C1_DA   7
 343 #define CP0C1_C2   6
 344 #define CP0C1_MD   5
 345 #define CP0C1_PC   4
 346 #define CP0C1_WR   3
 347 #define CP0C1_CA   2
 348 #define CP0C1_EP   1
 349 #define CP0C1_FP   0
 350     int32_t CP0_Config2;
 351 #define CP0C2_M    31
 352 #define CP0C2_TU   28
 353 #define CP0C2_TS   24
 354 #define CP0C2_TL   20
 355 #define CP0C2_TA   16
 356 #define CP0C2_SU   12
 357 #define CP0C2_SS   8
 358 #define CP0C2_SL   4
 359 #define CP0C2_SA   0
 360     int32_t CP0_Config3;
 361 #define CP0C3_M    31
 362 #define CP0C3_DSPP 10
 363 #define CP0C3_LPA  7
 364 #define CP0C3_VEIC 6
 365 #define CP0C3_VInt 5
 366 #define CP0C3_SP   4
 367 #define CP0C3_MT   2
 368 #define CP0C3_SM   1
 369 #define CP0C3_TL   0
 370     int32_t CP0_Config6;
 371     int32_t CP0_Config7;
 372     /* XXX: Maybe make LLAddr per-TC? */
 373     target_ulong CP0_LLAddr;
 374     target_ulong CP0_WatchLo[8];
 375     int32_t CP0_WatchHi[8];
 376     target_ulong CP0_XContext;
 377     int32_t CP0_Framemask;
 378     int32_t CP0_Debug;
 379 #define CP0DB_DBD  31
 380 #define CP0DB_DM   30
 381 #define CP0DB_LSNM 28
 382 #define CP0DB_Doze 27
 383 #define CP0DB_Halt 26
 384 #define CP0DB_CNT  25
 385 #define CP0DB_IBEP 24
 386 #define CP0DB_DBEP 21
 387 #define CP0DB_IEXI 20
 388 #define CP0DB_VER  15
 389 #define CP0DB_DEC  10
 390 #define CP0DB_SSt  8
 391 #define CP0DB_DINT 5
 392 #define CP0DB_DIB  4
 393 #define CP0DB_DDBS 3
 394 #define CP0DB_DDBL 2
 395 #define CP0DB_DBp  1
 396 #define CP0DB_DSS  0
 397     target_ulong CP0_DEPC;
 398     int32_t CP0_Performance0;
 399     int32_t CP0_TagLo;
 400     int32_t CP0_DataLo;
 401     int32_t CP0_TagHi;
 402     int32_t CP0_DataHi;
 403     target_ulong CP0_ErrorEPC;
 404     int32_t CP0_DESAVE;
 405     /* We waste some space so we can handle shadow registers like TCs. */
 406     TCState tcs[MIPS_SHADOW_SET_MAX];
 407     /* Qemu */
 408     int error_code;
 409     uint32_t hflags;    /* CPU State */
 410     /* TMASK defines different execution modes */
 411 #define MIPS_HFLAG_TMASK  0x01FF
 412 #define MIPS_HFLAG_MODE   0x0007 /* execution modes                    */
 413     /* The KSU flags must be the lowest bits in hflags. The flag order
 414        must be the same as defined for CP0 Status. This allows to use
 415        the bits as the value of mmu_idx. */
 416 #define MIPS_HFLAG_KSU    0x0003 /* kernel/supervisor/user mode mask   */
 417 #define MIPS_HFLAG_UM       0x0002 /* user mode flag */
 418 #define MIPS_HFLAG_SM       0x0001 /* supervisor mode flag */
 419 #define MIPS_HFLAG_KM       0x0000 /* kernel mode flag */
 420 #define MIPS_HFLAG_DM     0x0004 /* Debug mode                         */
 421 #define MIPS_HFLAG_64     0x0008 /* 64-bit instructions enabled        */
 422 #define MIPS_HFLAG_CP0    0x0010 /* CP0 enabled                        */
 423 #define MIPS_HFLAG_FPU    0x0020 /* FPU enabled                        */
 424 #define MIPS_HFLAG_F64    0x0040 /* 64-bit FPU enabled                 */
 425     /* True if the MIPS IV COP1X instructions can be used.  This also
 426        controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
 427        and RSQRT.D.  */
 428 #define MIPS_HFLAG_COP1X  0x0080 /* COP1X instructions enabled         */
 429 #define MIPS_HFLAG_RE     0x0100 /* Reversed endianness                */
 430     /* If translation is interrupted between the branch instruction and
 431      * the delay slot, record what type of branch it is so that we can
 432      * resume translation properly.  It might be possible to reduce
 433      * this from three bits to two.  */
 434 #define MIPS_HFLAG_BMASK  0x0e00
 435 #define MIPS_HFLAG_B      0x0200 /* Unconditional branch               */
 436 #define MIPS_HFLAG_BC     0x0400 /* Conditional branch                 */
 437 #define MIPS_HFLAG_BL     0x0600 /* Likely branch                      */
 438 #define MIPS_HFLAG_BR     0x0800 /* branch to register (can't link TB) */
 439     target_ulong btarget;        /* Jump / branch target               */
 440     int bcond;                   /* Branch condition (if needed)       */
 441
 442     int SYNCI_Step; /* Address step size for SYNCI */
 443     int CCRes; /* Cycle count resolution/divisor */
 444     uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
 445     uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
 446     int insn_flags; /* Supported instruction set */
 447
 448     target_ulong tls_value; /* For usermode emulation */
 449
 450     CPU_COMMON
 451
 452     const mips_def_t *cpu_model;
 453     void *irq[8];
 454     struct QEMUTimer *timer; /* Internal timer */
 455 };
 456
 457 int no_mmu_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
 458                         target_ulong address, int rw, int access_type);
 459 int fixed_mmu_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
 460                            target_ulong address, int rw, int access_type);
 461 int r4k_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
 462                      target_ulong address, int rw, int access_type);
 463 void r4k_do_tlbwi (void);
 464 void r4k_do_tlbwr (void);
 465 void r4k_do_tlbp (void);
 466 void r4k_do_tlbr (void);
 467 void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
 468
 469 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
 470                           int unused);
 471
 472 #define CPUState CPUMIPSState
 473 #define cpu_init cpu_mips_init
 474 #define cpu_exec cpu_mips_exec
 475 #define cpu_gen_code cpu_mips_gen_code
 476 #define cpu_signal_handler cpu_mips_signal_handler
 477 #define cpu_list mips_cpu_list
 478
 479 #define CPU_SAVE_VERSION 3
 480
 481 /* MMU modes definitions. We carefully match the indices with our
 482    hflags layout. */
 483 #define MMU_MODE0_SUFFIX _kernel
 484 #define MMU_MODE1_SUFFIX _super
 485 #define MMU_MODE2_SUFFIX _user
 486 #define MMU_USER_IDX 2
 487 static inline int cpu_mmu_index (CPUState *env)
 488 {
 489     return env->hflags & MIPS_HFLAG_KSU;
 490 }
 491
 492 static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 493 {
 494     if (newsp)
 495         env->active_tc.gpr[29] = newsp;
 496     env->active_tc.gpr[7] = 0;
 497     env->active_tc.gpr[2] = 0;
 498 }
 499
 500 #include "cpu-all.h"
 501
 502 /* Memory access type :
 503  * may be needed for precise access rights control and precise exceptions.
 504  */
 505 enum {
 506     /* 1 bit to define user level / supervisor access */
 507     ACCESS_USER  = 0x00,
 508     ACCESS_SUPER = 0x01,
 509     /* 1 bit to indicate direction */
 510     ACCESS_STORE = 0x02,
 511     /* Type of instruction that generated the access */
 512     ACCESS_CODE  = 0x10, /* Code fetch access                */
 513     ACCESS_INT   = 0x20, /* Integer load/store access        */
 514     ACCESS_FLOAT = 0x30, /* floating point load/store access */
 515 };
 516
 517 /* Exceptions */
 518 enum {
 519     EXCP_NONE          = -1,
 520     EXCP_RESET         = 0,
 521     EXCP_SRESET,
 522     EXCP_DSS,
 523     EXCP_DINT,
 524     EXCP_DDBL,
 525     EXCP_DDBS,
 526     EXCP_NMI,
 527     EXCP_MCHECK,
 528     EXCP_EXT_INTERRUPT, /* 8 */
 529     EXCP_DFWATCH,
 530     EXCP_DIB,
 531     EXCP_IWATCH,
 532     EXCP_AdEL,
 533     EXCP_AdES,
 534     EXCP_TLBF,
 535     EXCP_IBE,
 536     EXCP_DBp, /* 16 */
 537     EXCP_SYSCALL,
 538     EXCP_BREAK,
 539     EXCP_CpU,
 540     EXCP_RI,
 541     EXCP_OVERFLOW,
 542     EXCP_TRAP,
 543     EXCP_FPE,
 544     EXCP_DWATCH, /* 24 */
 545     EXCP_LTLBL,
 546     EXCP_TLBL,
 547     EXCP_TLBS,
 548     EXCP_DBE,
 549     EXCP_THREAD,
 550     EXCP_MDMX,
 551     EXCP_C2E,
 552     EXCP_CACHE, /* 32 */
 553
 554     EXCP_LAST = EXCP_CACHE,
 555 };
 556
 557 int cpu_mips_exec(CPUMIPSState *s);
 558 CPUMIPSState *cpu_mips_init(const char *cpu_model);
 559 uint32_t cpu_mips_get_clock (void);
 560 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
 561
 562 #define CPU_PC_FROM_TB(env, tb) do { \
 563     env->active_tc.PC = tb->pc; \
 564     env->hflags &= ~MIPS_HFLAG_BMASK; \
 565     env->hflags |= tb->flags & MIPS_HFLAG_BMASK; \
 566     } while (0)
 567
 568 #endif /* !defined (__MIPS_CPU_H__) */