expect = 4
	}

	if expect != n {
		c.ctxt.Diag("expected %d registers, got %d: %v.", expect, n, p)
	}
}

/* checkShiftAmount checks whether the index shift amount is valid */
/* for load with register offset instructions */
func (c *ctxt7) checkShiftAmount(p *obj.Prog, a *obj.Addr) {
	var amount int16
	amount = (a.Index >> 5) & 7
	switch p.As {
	case AMOVB, AMOVBU:
		if amount != 0 {