sem [ fmovrdz fmovrdlez fmovrdlz fmovrdnz fmovrdgz fmovrdgez ] {
    set_op(new_inst,Op,1 ,1); Rx_src(new_inst,rs1);
    F8_src(new_inst,rs2); F8_dest(new_inst,rd);
} where Op in [64  65  66  67  68  69 ];