register["MB_SY"] = arm.REG_MB_SY
	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)
	}