target-sparc/cpu.h

   1 #ifndef CPU_SPARC_H
   2 #define CPU_SPARC_H
   3
   4 #define TARGET_LONG_BITS 32
   5
   6 #include "cpu-defs.h"
   7
   8 /*#define EXCP_INTERRUPT 0x100*/
   9
  10 /* trap definitions */
  11 #define TT_ILL_INSN 0x02
  12 #define TT_WIN_OVF  0x05
  13 #define TT_WIN_UNF  0x06
  14 #define TT_DIV_ZERO 0x2a
  15 #define TT_TRAP     0x80
  16
  17 #define PSR_NEG   (1<<23)
  18 #define PSR_ZERO  (1<<22)
  19 #define PSR_OVF   (1<<21)
  20 #define PSR_CARRY (1<<20)
  21
  22 #define NWINDOWS  32
  23
  24 typedef struct CPUSPARCState {
  25     uint32_t gregs[8]; /* general registers */
  26     uint32_t *regwptr; /* pointer to current register window */
  27     double   *regfptr; /* floating point registers */
  28     uint32_t pc;       /* program counter */
  29     uint32_t npc;      /* next program counter */
  30     uint32_t sp;       /* stack pointer */
  31     uint32_t y;        /* multiply/divide register */
  32     uint32_t psr;      /* processor state register */
  33     uint32_t T2;
  34     uint32_t cwp;      /* index of current register window (extracted
  35                           from PSR) */
  36     uint32_t wim;      /* window invalid mask */
  37     jmp_buf  jmp_env;
  38     int user_mode_only;
  39     int exception_index;
  40     int interrupt_index;
  41     int interrupt_request;
  42     struct TranslationBlock *current_tb;
  43     void *opaque;
  44     /* NOTE: we allow 8 more registers to handle wrapping */
  45     uint32_t regbase[NWINDOWS * 16 + 8];
  46
  47     /* in order to avoid passing too many arguments to the memory
  48        write helpers, we store some rarely used information in the CPU
  49        context) */
  50     unsigned long mem_write_pc; /* host pc at which the memory was
  51                                    written */
  52     unsigned long mem_write_vaddr; /* target virtual addr at which the
  53                                       memory was written */
  54 } CPUSPARCState;
  55
  56 CPUSPARCState *cpu_sparc_init(void);
  57 int cpu_sparc_exec(CPUSPARCState *s);
  58 int cpu_sparc_close(CPUSPARCState *s);
  59
  60 struct siginfo;
  61 int cpu_sparc_signal_handler(int hostsignum, struct siginfo *info, void *puc);
  62 void cpu_sparc_dump_state(CPUSPARCState *env, FILE *f, int flags);
  63
  64 #define TARGET_PAGE_BITS 13
  65 #include "cpu-all.h"
  66
  67 #endif