case FADD, FCOM, FCOMP, FDIV, FDIVR, FIADD, FICOM, FICOMP, FIDIV, FIDIVR, FILD, FIMUL, FIST, FISTP, FISTTP, FISUB, FISUBR, FLD, FMUL, FST, FSTP, FSUB, FSUBR:
		return true
	}
	return false
}

func isFloatInt(op Op) bool {
	switch op {
	case FIADD, FICOM, FICOMP, FIDIV, FIDIVR, FILD, FIMUL, FIST, FISTP, FISTTP, FISUB, FISUBR:
		return true
	}
	return false

		if len(args) == 1 {
			args = append(args, "st0")
		}

	case FLD, FXCH, FCOM, FCOMP, FIADD, FIMUL, FICOM, FICOMP, FISUBR, FIDIV, FUCOM, FUCOMP, FILD, FBLD, FADD, FMUL, FSUB, FSUBR, FISUB, FDIV, FDIVR, FIDIVR:
		if len(args) == 1 {
			args = []string{"st0", args[0]}
		}

	case MASKMOVDQU, MASKMOVQ, XLATB, OUTSB, OUTSW, OUTSD:
	FixSegment:
		for i := len(inst.Prefix) - 1; i >= 0; i-- {