return "MB_ST"
	case REG_MB_ISH:
		return "MB_ISH"
	case REG_MB_ISHST:
		return "MB_ISHST"
	case REG_MB_NSH:
		return "MB_NSH"
	case REG_MB_NSHST:
		return "MB_NSHST"
	case REG_MB_OSH:
		return "MB_OSH"
	case REG_MB_OSHST:
		return "MB_OSHST"
	}

	return fmt.Sprintf("Rgok(%d)", r-obj.RBaseARM)
}

func DRconv(a int) string {
	s := "C_??"
	if a >= C_NONE && a <= C_NCLASS {
		s = cnames5[a]
	}

	register["MB_ST"] = arm.REG_MB_ST
	register["MB_ISH"] = arm.REG_MB_ISH
	register["MB_ISHST"] = arm.REG_MB_ISHST
	register["MB_NSH"] = arm.REG_MB_NSH
	register["MB_NSHST"] = arm.REG_MB_NSHST
	register["MB_OSH"] = arm.REG_MB_OSH
	register["MB_OSHST"] = arm.REG_MB_OSHST

	instructions := make(map[string]obj.As)
	for i, s := range obj.Anames {
		instructions[s] = obj.As(i)
	}
	for i, s := range arm.Anames {