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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) I.regs.w[Mod_RM.reg.w[ModRM]]
#define RegByte(ModRM) I.regs.b[Mod_RM.reg.b[ModRM]]
#define GetRMWord(ModRM) \
((ModRM) >= 0xc0 ? I.regs.w[Mod_RM.RM.w[ModRM]] : ( (*GetEA[ModRM])(), ReadWord( EA ) ))
#define PutbackRMWord(ModRM,val) \
{ \
if (ModRM >= 0xc0) I.regs.w[Mod_RM.RM.w[ModRM]]=val; \
else WriteWord(EA,val); \
}
#define GetnextRMWord ReadWord(EA+2)
#define GetRMWordOffset(offs) \
ReadWord(EA-EO+(UINT16)(EO+offs))
#define GetRMByteOffset(offs) \
ReadByte(EA-EO+(UINT16)(EO+offs))
#define PutRMWord(ModRM,val) \
{ \
if (ModRM >= 0xc0) \
I.regs.w[Mod_RM.RM.w[ModRM]]=val; \
else { \
(*GetEA[ModRM])(); \
WriteWord( EA ,val); \
} \
}
#define PutRMWordOffset(offs, val) \
WriteWord( EA-EO+(UINT16)(EO+offs), val)
#define PutRMByteOffset(offs, val) \
WriteByte( EA-EO+(UINT16)(EO+offs), val)
#define PutImmRMWord(ModRM) \
{ \
WORD val; \
if (ModRM >= 0xc0) \
FETCHWORD(I.regs.w[Mod_RM.RM.w[ModRM]]) \
else { \
(*GetEA[ModRM])(); \
FETCHWORD(val) \
WriteWord( EA , val); \
} \
}
#define GetRMByte(ModRM) \
((ModRM) >= 0xc0 ? I.regs.b[Mod_RM.RM.b[ModRM]] : ReadByte( (*GetEA[ModRM])() ))
#define PutRMByte(ModRM,val) \
{ \
if (ModRM >= 0xc0) \
I.regs.b[Mod_RM.RM.b[ModRM]]=val; \
else \
WriteByte( (*GetEA[ModRM])() ,val); \
}
#define PutImmRMByte(ModRM) \
{ \
if (ModRM >= 0xc0) \
I.regs.b[Mod_RM.RM.b[ModRM]]=FETCH; \
else { \
(*GetEA[ModRM])(); \
WriteByte( EA , FETCH ); \
} \
}
#define PutbackRMByte(ModRM,val) \
{ \
if (ModRM >= 0xc0) \
I.regs.b[Mod_RM.RM.b[ModRM]]=val; \
else \
WriteByte(EA,val); \
}
#define DEF_br8(dst,src) \
unsigned ModRM = FETCHOP; \
unsigned src = RegByte(ModRM); \
unsigned dst = GetRMByte(ModRM)
#define DEF_wr16(dst,src) \
unsigned ModRM = FETCHOP; \
unsigned src = RegWord(ModRM); \
unsigned dst = GetRMWord(ModRM)
#define DEF_r8b(dst,src) \
unsigned ModRM = FETCHOP; \
unsigned dst = RegByte(ModRM); \
unsigned src = GetRMByte(ModRM)
#define DEF_r16w(dst,src) \
unsigned ModRM = FETCHOP; \
unsigned dst = RegWord(ModRM); \
unsigned src = GetRMWord(ModRM)
#define DEF_ald8(dst,src) \
unsigned src = FETCHOP; \
unsigned dst = I.regs.b[AL]
#define DEF_axd16(dst,src) \
unsigned src = FETCHOP; \
unsigned dst = I.regs.w[AX]; \
src += (FETCH << 8)
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