v = c.regoff(p.GetFrom3()) & 255
		} else {
			v = 255
		}
		o1 = OP_MTFSF | uint32(v)<<17 | uint32(p.From.Reg)<<11

	case 65: /* MOVFL $imm,FPSCR(n) => mtfsfi crfd,imm */
		if p.To.Reg == 0 {
			c.ctxt.Diag("must specify FPSCR(n)\n%v", p)
		}
		o1 = OP_MTFSFI | (uint32(p.To.Reg)&15)<<23 | (uint32(c.regoff(&p.From))&31)<<12

	case 66: /* mov spr,r1; mov r1,spr */
		var r int
		var v int32