G1FH:		CALL EXTEND
		CALL RA
		MOV AL, [ARGS]
		CMP AL, 2
		JZ G1FHM
		CMP AL, 5
		JZ G1FHR
		XOR AL, AL
		JMP FAIL
G1FHM:		MOV AL, [ARGS+2]
		CMP AL, 3
		JZ G1FHD
		CMP AL, 4
		JNZ G1FHF
G1FHR:		OR BYTE PTR [OPCODE], 4
G1FHD:		JMP MMODRM
G1FHF:		MOV AL, 1
		JMP FAIL
