sem [		faddd		fsubd		fmuld		fdivd	] {
    set_op(new_inst,Op,2 ,ft);
    F8_src(new_inst,rs1); F8_src(new_inst,rs2);
    F8_dest(new_inst,rd);
} where Op in [	134 	136 	158 	160  ],
	ft in [	1		1		5		23	];