dem1x4_2.tf

一些程式 請大家 多多關照.........

`timescale 1ns/1ns

module t;

reg D, S1, S0;
wire Y0, Y1, Y2, Y3;

    DeMux1X4_1 m (.D(D), .S1(S1), .S0(S0), .Y0(Y0), .Y1(Y1), .Y2(Y2), .Y3(Y3));

    // Enter fixture code here
    initial
    begin    
    #0
	    S1 = 1'b0;
	    S0 = 1'b0;
	    D  = 1'b0;
    #50
	    S1 = 1'b0;
	    S0 = 1'b1;
	    D  = 1'b0;

    #50
	    S1 = 1'b1;
	    S0 = 1'b0;
	    D  = 1'b0;
    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'b0;



    #50
	    S1 = 1'b0;
	    S0 = 1'b0;
	    D  = 1'b1;
    #50
	    S1 = 1'b0;
	    S0 = 1'b1;
	    D  = 1'b1;

    #50
	    S1 = 1'b1;
	    S0 = 1'b0;
	    D  = 1'b1;
    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'b1;






    #50
	    S1 = 1'b0;
	    S0 = 1'b0;
	    D  = 1'bX;
    #50
	    S1 = 1'b0;
	    S0 = 1'b1;
	    D  = 1'bX;

    #50
	    S1 = 1'b1;
	    S0 = 1'b0;
	    D  = 1'bX;
    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'bX;






    #50
	    S1 = 1'b0;
	    S0 = 1'b0;
	    D  = 1'b1;
    #50
	    S1 = 1'b0;
	    S0 = 1'b1;
	    D  = 1'b1;

    #50
	    S1 = 1'b1;
	    S0 = 1'b0;
	    D  = 1'b1;
    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'b1;






    #50
	    S1 = 1'b0;
	    S0 = 1'b0;
	    D  = 1'bZ;
    #50
	    S1 = 1'b0;
	    S0 = 1'b1;
	    D  = 1'bZ;

    #50
	    S1 = 1'b1;
	    S0 = 1'b0;
	    D  = 1'bZ;
    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'bZ;



    #0
	    S1 = 1'b0;
	    S0 = 1'b0;
	    D  = 1'b0;
    #50
	    S1 = 1'b0;
	    S0 = 1'b1;
	    D  = 1'b0;

    #50
	    S1 = 1'b1;
	    S0 = 1'b0;
	    D  = 1'b0;
    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'b0;


    #50
	    S1 = 1'b1;
	    S0 = 1'b1;
	    D  = 1'b0;
    end

endmodule // t