case 62: /* clrlslwi $sh,s,$mask,a */
		v := c.regoff(&p.From)
		n := c.regoff(p.GetFrom3())
		// This is an extended mnemonic described in the ISA C.8.2
		// clrlslwi ra,rs,b,n -> rlwinm ra,rs,n,b-n,31-n
		// It maps onto rlwinm which is directly generated here.
		if n > v || v >= 32 {
			c.ctxt.Diag("Invalid n or b for CLRLSLWI: %x %x\n%v", v, n, p)
		}