66. Demultiplexer

How do you plan to solve it?

/*Write your code here*/
module demux1to4 (
    input d,
    input [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