r := int(p.Reg)

		if r == 0 {
			r = int(p.To.Reg)
		}
		o1 = AOP_RRR(c.oprrr(p.As), uint32(p.To.Reg), uint32(p.From.Reg), uint32(r))

	case 11: /* br/bl bra */
		v := int32(0)

		if p.To.Target() != nil {
			v = int32(p.To.Target().Pc - p.Pc)
			if v&03 != 0 {
				c.ctxt.Diag("odd branch target address\n%v", p)
				v &^= 03
			}

		return OPBcc(0xd) /* imm19<<5 | cond */

	case AB:
		return 0<<31 | 5<<26 /* imm26 */

	case obj.ADUFFZERO, obj.ADUFFCOPY, ABL:
		return 1<<31 | 5<<26
	}

	c.ctxt.Diag("%v: bad bra %v", p, a)
	return 0
}

func (c *ctxt7) opbrr(p *obj.Prog, a obj.As) uint32 {
	switch a {
	case ABL:
		return OPBLR(1) /* BLR */

	case AB:
		return OPBLR(0) /* BR */