return true
		}
		fallthrough
	case C_LCON:
		if b == C_ZCON || b == C_SCON || b == C_UCON || b == C_ADDCON || b == C_ANDCON {
			return true
		}

	case C_ADDCON:
		if b == C_ZCON || b == C_SCON {
			return true
		}

	case C_ANDCON:
		if b == C_ZCON || b == C_SCON {
			return true
		}

	case C_UCON:
		if b == C_ZCON || b == C_SCON {
			return true
		}

	case C_SCON:

	{as: AFMOVD, a1: C_S16CON, a6: C_FREG, type_: 24, size: 8},
	{as: AFMOVD, a1: C_SOREG, a6: C_FREG, type_: 8, size: 4},
	{as: AFMOVD, a1: C_XOREG, a6: C_FREG, type_: 109, size: 4},
	{as: AFMOVD, a1: C_ZCON, a6: C_FREG, type_: 24, size: 4},
	{as: AFMOVD, a1: C_FREG, a6: C_FREG, type_: 33, size: 4},
	{as: AFMOVD, a1: C_FREG, a6: C_SOREG, type_: 7, size: 4},
	{as: AFMOVD, a1: C_FREG, a6: C_XOREG, type_: 108, size: 4},

			return true
		}

	case C_MOVCON:
		if b == C_MBCON || b == C_ZCON || b == C_ADDCON0 || b == C_ABCON0 || b == C_AMCON {
			return true
		}

	case C_ADDCON2:
		if b == C_ZCON || b == C_ADDCON || b == C_ADDCON0 {
			return true
		}

	case C_LCON: