diff options
Diffstat (limited to 'target-sparc/cpu.h')
| -rw-r--r-- | target-sparc/cpu.h | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 350d7b719c..67fece7127 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -7,29 +7,42 @@ /*#define EXCP_INTERRUPT 0x100*/ +/* trap definitions */ +#define TT_ILL_INSN 0x02 +#define TT_WIN_OVF 0x05 +#define TT_WIN_UNF 0x06 +#define TT_DIV_ZERO 0x2a +#define TT_TRAP 0x80 #define PSR_NEG (1<<23) #define PSR_ZERO (1<<22) #define PSR_OVF (1<<21) #define PSR_CARRY (1<<20) +#define NWINDOWS 32 + typedef struct CPUSPARCState { - uint32_t gregs[8]; /* general registers */ - uint32_t *regwptr; /* pointer to current register window */ - double *regfptr; /* floating point registers */ - uint32_t pc; /* program counter */ - uint32_t npc; /* next program counter */ - uint32_t sp; /* stack pointer */ - uint32_t y; /* multiply/divide register */ - uint32_t psr; /* processor state register */ - uint32_t T2; - jmp_buf jmp_env; - int user_mode_only; - int exception_index; - int interrupt_index; - int interrupt_request; - struct TranslationBlock *current_tb; - void *opaque; + uint32_t gregs[8]; /* general registers */ + uint32_t *regwptr; /* pointer to current register window */ + double *regfptr; /* floating point registers */ + uint32_t pc; /* program counter */ + uint32_t npc; /* next program counter */ + uint32_t sp; /* stack pointer */ + uint32_t y; /* multiply/divide register */ + uint32_t psr; /* processor state register */ + uint32_t T2; + uint32_t cwp; /* index of current register window (extracted + from PSR) */ + uint32_t wim; /* window invalid mask */ + jmp_buf jmp_env; + int user_mode_only; + int exception_index; + int interrupt_index; + int interrupt_request; + struct TranslationBlock *current_tb; + void *opaque; + /* NOTE: we allow 8 more registers to handle wrapping */ + uint32_t regbase[NWINDOWS * 16 + 8]; } CPUSPARCState; CPUSPARCState *cpu_sparc_init(void); |