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static struct {
struct {
WREGS w[256];
BREGS b[256];
} reg;
struct {
WREGS w[256];
BREGS b[256];
} RM;
} Mod_RM;
#define RegWord(ModRM) cpustate->regs.w[Mod_RM.reg.w[ModRM]]
#define RegByte(ModRM) cpustate->regs.b[Mod_RM.reg.b[ModRM]]
#define GetRMWord(ModRM) \
((ModRM) >= 0xc0 ? cpustate->regs.w[Mod_RM.RM.w[ModRM]] : ( (*GetEA[ModRM])(cpustate), ReadWord( cpustate->ea ) ))
#define PutbackRMWord(ModRM,val) \
{ \
if (ModRM >= 0xc0) cpustate->regs.w[Mod_RM.RM.w[ModRM]]=val; \
else WriteWord(cpustate->ea,val); \
}
#define GetnextRMWord ReadWord((cpustate->ea&0xf0000)|((cpustate->ea+2)&0xffff))
#define PutRMWord(ModRM,val) \
{ \
if (ModRM >= 0xc0) \
cpustate->regs.w[Mod_RM.RM.w[ModRM]]=val; \
else { \
(*GetEA[ModRM])(cpustate); \
WriteWord( cpustate->ea ,val); \
} \
}
#define PutImmRMWord(ModRM) \
{ \
WORD val; \
if (ModRM >= 0xc0) \
FETCHWORD(cpustate->regs.w[Mod_RM.RM.w[ModRM]]) \
else { \
(*GetEA[ModRM])(cpustate); \
FETCHWORD(val) \
WriteWord( cpustate->ea , val); \
} \
}
#define GetRMByte(ModRM) \
((ModRM) >= 0xc0 ? cpustate->regs.b[Mod_RM.RM.b[ModRM]] : ReadByte( (*GetEA[ModRM])(cpustate) ))
#define PutRMByte(ModRM,val) \
{ \
if (ModRM >= 0xc0) \
cpustate->regs.b[Mod_RM.RM.b[ModRM]]=val; \
else \
WriteByte( (*GetEA[ModRM])(cpustate) ,val); \
}
#define PutImmRMByte(ModRM) \
{ \
if (ModRM >= 0xc0) \
cpustate->regs.b[Mod_RM.RM.b[ModRM]]=FETCH; \
else { \
(*GetEA[ModRM])(cpustate); \
WriteByte( cpustate->ea , FETCH ); \
} \
}
#define PutbackRMByte(ModRM,val) \
{ \
if (ModRM >= 0xc0) \
cpustate->regs.b[Mod_RM.RM.b[ModRM]]=val; \
else \
WriteByte(cpustate->ea,val); \
}
#define DEF_br8 \
UINT32 ModRM = FETCH,src,dst; \
src = RegByte(ModRM); \
dst = GetRMByte(ModRM)
#define DEF_wr16 \
UINT32 ModRM = FETCH,src,dst; \
src = RegWord(ModRM); \
dst = GetRMWord(ModRM)
#define DEF_r8b \
UINT32 ModRM = FETCH,src,dst; \
dst = RegByte(ModRM); \
src = GetRMByte(ModRM)
#define DEF_r16w \
UINT32 ModRM = FETCH,src,dst; \
dst = RegWord(ModRM); \
src = GetRMWord(ModRM)
#define DEF_ald8 \
UINT32 src = FETCH; \
UINT32 dst = cpustate->regs.b[AL]
#define DEF_axd16 \
UINT32 src = FETCH; \
UINT32 dst = cpustate->regs.w[AW]; \
src += (FETCH << 8)
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