66. Demultiplexer

How do you plan to solve it?

/*Write your code here*/
module demux1to4(   input d,
                    input wire[1:0] s,
                    output reg[3:0] y);
    always @* begin
        y = 4'b0000;
        case (s)
            2'b00: y[0] = d;
            2'b01: y[1] = d;
            2'b10: y[2] = d;
            2'b11: y[3] = d;
        endcase
    end 
endmodule