diff options
Diffstat (limited to 'target-m68k/cpu.h')
| -rw-r--r-- | target-m68k/cpu.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h index acbb51690d..6f29d5e5c4 100644 --- a/target-m68k/cpu.h +++ b/target-m68k/cpu.h @@ -59,6 +59,10 @@ typedef struct CPUM68KState { uint32_t pc; uint32_t sr; + /* SSP and USP. The current_sp is stored in aregs[7], the other here. */ + int current_sp; + uint32_t sp[2]; + /* Condition flags. */ uint32_t cc_op; uint32_t cc_dest; @@ -92,6 +96,7 @@ typedef struct CPUM68KState { uint32_t vbr; uint32_t mbar; uint32_t rambar0; + uint32_t cacr; uint32_t features; @@ -151,6 +156,12 @@ enum { #define SR_S 0x2000 #define SR_T 0x8000 +#define M68K_SSP 0 +#define M68K_USP 1 + +/* CACR fields are implementation defined, but some bits are common. */ +#define M68K_CACR_EUSP 0x10 + #define MACSR_PAV0 0x100 #define MACSR_OMC 0x080 #define MACSR_SU 0x040 @@ -167,6 +178,7 @@ int cpu_m68k_set_model(CPUM68KState *env, const char * name); void m68k_set_irq_level(CPUM68KState *env, int level, uint8_t vector); void m68k_set_macsr(CPUM68KState *env, uint32_t val); +void m68k_switch_sp(CPUM68KState *env); #define M68K_FPCR_PREC (1 << 6) @@ -179,6 +191,7 @@ enum m68k_features { M68K_FEATURE_CF_FPU, M68K_FEATURE_CF_MAC, M68K_FEATURE_CF_EMAC, + M68K_FEATURE_USP, M68K_FEATURE_EXT_FULL, /* 68020+ full extension word. */ M68K_FEATURE_WORD_INDEX /* word sized address index registers. */ }; |