case AMOVWBR:
		return op_LRV
	case AMOVHBR:
		return op_LRVH
	}

	c.ctxt.Diag("unknown store opcode %v", a)
	return 0
}

// zopstore12 returns the RX op with 12 bit displacement for the given store.
func (c *ctxtz) zopstore12(a obj.As) (uint32, bool) {
	switch a {
	case AFMOVD:
		return op_STD, true
	case AFMOVS:
		return op_STE, true
	case AMOVW, AMOVWZ:
		return op_ST, true