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 PutRMWord(ModRM,val)				\
{							\
	if (ModRM >= 0xc0)				\
		I.regs.w[Mod_RM.RM.w[ModRM]]=val;	\
	else {						\
		(*GetEA[ModRM])();			\
		WriteWord( EA ,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[AW];			\
    src += (FETCH << 8)


