sem [		ldfsr		ldxfsr		] {
    set_op(new_inst,Op,3 ,1);
    Rx_src(new_inst,rs1); set_src2(new_inst,i,rs2,simm13) ;
    new_inst.destq?push_back(rmap_dest(12 ,0));
    new_inst.align = align?cvt(uchar);
    is_trap = true;
} where Op in [	172 	173 	],
     align in [ 2		3		];