ab.asmvex(ctxt, p.GetFrom3(), &p.To, nil, o.op[z], o.op[z+1])
				ab.asmando(ctxt, cursym, p, p.GetFrom3(), int(o.op[z+2]))
				ab.Put1(byte(p.From.Offset))

			case Zvex_i_r_v:
				ab.asmvex(ctxt, p.GetFrom3(), &p.To, nil, o.op[z], o.op[z+1])
				regnum := byte(0x7)
				if p.GetFrom3().Reg >= REG_X0 && p.GetFrom3().Reg <= REG_X15 {
					regnum &= byte(p.GetFrom3().Reg - REG_X0)
				} else {

		v := c.regoff(p.GetFrom3())

		r := int(p.From.Reg)
		o1 = AOP_IRR(c.opirr(p.As), uint32(p.To.Reg), uint32(r), uint32(v))

	case 28: /* subc r1,$lcon,r2 ==> cau+or+subfc */
		if p.To.Reg == REGTMP || p.From.Reg == REGTMP {
			c.ctxt.Diag("can't synthesize large constant\n%v", p)
		}
		v := c.vregoff(p.GetFrom3())
		o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, uint32(v)>>16)

			}
		}
		p.From.Class = int8(a1)
	}

	a2 := C_NONE
	if p.Reg != 0 {
		a2 = rclass(p.Reg)
	}

	a3 := C_NONE
	if p.GetFrom3() != nil {
		a3 = int(p.GetFrom3().Class)
		if a3 == 0 {
			a3 = c.aclass(p.GetFrom3())
			p.GetFrom3().Class = int8(a3)
		}
	}

	a4 := int(p.To.Class)
	if a4 == 0 {
		a4 = c.aclass(&p.To)
		if p.To.Type == obj.TYPE_MEM {

			c.ctxt.Diag("number of bytes (%v) not in range [1,256]", l)
		}
		if p.GetFrom3().Index != 0 || p.To.Index != 0 {
			c.ctxt.Diag("cannot use index reg")
		}
		b1 := p.To.Reg
		b2 := p.GetFrom3().Reg
		if b1 == 0 {
			b1 = REGSP
		}
		if b2 == 0 {
			b2 = REGSP
		}
		d1 := c.regoff(&p.To)
		d2 := c.regoff(p.GetFrom3())
		if d1 < 0 || d1 >= DISP12 {
			if b2 == int16(regtmp(p)) {