How do you plan to solve it?
module sr_latch_enable ( input EN, input S, input R, output Q, output Qn ); reg q; always @(*) begin if(EN) begin if (S && !R) q = 1; else if(!S && R) q =0; else if(S && R) q =0; end end assign Q = q; assign Qn = ~q; endmodule