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//----- Testbench -----

// Timescale: one time unit = 1ns (e.g., delay specification of #42 means 42ns of time), and

// simulator resolution is 0.1 ns

`timescale 1ns / 100ps

module port_register_tb;

// Input stimulus:

reg     clk;

reg     rst;

reg     wen, ren;

reg     [7:0]    in_data;

reg     in_sof;

reg     in_eof;

reg     in_src_rdy;

reg     out_dst_rdy;

// Output connections:

wire    [7:0]    out_data;

wire    out_sof;

wire    out_eof;

wire    out_src_rdy;

wire    in_dst_rdy;

//Instantiate the DUT (device under test):

port_register DUT (

        // Inputs:

        .clk ( clk ),

        .rst ( rst ),

        .wen ( wen ),

        .ren ( ren ),

        .in_data ( in_data ),   // Input

        .in_sof ( in_sof ),     // Input

        .in_eof ( in_eof ),     // Input

        .in_src_rdy ( in_src_rdy ),     // Input

        .out_dst_rdy ( out_dst_rdy ),   // Output

        // Outputs:

        .out_data ( out_data ), // Output

        .out_sof ( out_sof ),   // Output

        .out_eof ( out_eof ),   // Output

        .out_src_rdy ( out_src_rdy ),   // Output

        .in_dst_rdy ( in_dst_rdy )      // Input

);

        // Specify input stimulus:

initial begin

        // Initial values for input stimulus:

        clk = 1;

        rst = 1'b0;

        wen = 1'b0;

        ren = 1'b0;

        in_data = 8'b0;

        in_sof = 1'b0;

        in_eof = 1'b0;

        in_src_rdy = 1'b1;

        out_dst_rdy = 1'b0;

        //

        //--- INSERT YOUR INPUT STIMULUS DESCRIPTION HERE ---

        //

        @(posedge clk);

        rst = 1;

        @(posedge clk);

        rst = 0;

        @(posedge clk);

        in_sof = 1;

        in_data = 8'h01;

        @(posedge clk);

        wen = 1;

        @(posedge clk);

        in_sof = 0;

        in_data = 8'h02;

        @(posedge clk);

        in_data = 8'h03;

        @(posedge clk);

        in_eof = 1;

        in_data = 4;

        @(posedge clk);

        wen = 0;

        @(posedge clk);

        ren = 1;

        out_dst_rdy = 1;

        @(posedge clk);

        @(posedge clk);

        @(posedge clk);

        @(posedge clk);

        @(posedge clk);

end

        // Template for master clock. Uncomment and modify signal name as needed.

        // Remember to set the initial value of 'Clock' in the 'initial' block above.

always #10 clk = ~clk;

endmodule