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/*
 * Copyright 2013, Homer Hsing <homer.hsing@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
`timescale 1ns / 1ps
`define P 20
 
module test_padder1;
 
    // Inputs
    reg [31:0] in;
    reg [1:0] byte_num;
 
    // Outputs
    wire [31:0] out;
 
    reg [31:0] wish;
 
    // Instantiate the Unit Under Test (UUT)
    padder1 uut (
        .in(in),
        .byte_num(byte_num),
        .out(out)
    );
 
    initial begin
        // Initialize Inputs
        in = 0;
        byte_num = 0;
 
        // Wait 100 ns for global reset to finish
        #100;
 
        // Add stimulus here
        in = 32'h90ABCDEF;
        byte_num = 0;
        wish = 32'h01000000;
        check;
        byte_num = 1;
        wish = 32'h90010000;
        check;
        byte_num = 2;
        wish = 32'h90AB0100;
        check;
        byte_num = 3;
        wish = 32'h90ABCD01;
        check;
        $display("Good!");
        $finish;
    end
 
    task check;
      begin
        #(`P);
        if (out !== wish)
          begin
            $display("E");
            $finish;
          end
      end
    endtask
endmodule
 
`undef P