/*
* Copyright 2012, Homer Hsing
*
* 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
module test_aes_256;
// Inputs
reg clk;
reg [127:0] state;
reg [255:0] key;
// Outputs
wire [127:0] out;
// Instantiate the Unit Under Test (UUT)
aes_256 uut (
.clk(clk),
.state(state),
.key(key),
.out(out)
);
initial begin
clk = 0;
state = 0;
key = 0;
#100;
/*
* TIMEGRP "key" OFFSET = IN 6.4 ns VALID 6 ns AFTER "clk" HIGH;
* TIMEGRP "state" OFFSET = IN 6.4 ns VALID 6 ns AFTER "clk" HIGH;
* TIMEGRP "out" OFFSET = OUT 2.2 ns BEFORE "clk" HIGH;
*/
@ (negedge clk);
#2;
state = 128'h3243f6a8885a308d313198a2e0370734;
key = 256'h2b7e151628aed2a6abf7158809cf4f3c_762e7160f38b4da56a784d9045190cfe;
#10;
state = 128'h00112233445566778899aabbccddeeff;
key = 256'h000102030405060708090a0b0c0d0e0f_101112131415161718191a1b1c1d1e1f;
#10;
state = 128'h0;
key = 256'h0;
#270;
if (out !== 128'h1a6e6c2c_662e7da6_501ffb62_bc9e93f3)
begin $display("E"); $finish; end
#10;
if (out !== 128'h8ea2b7ca_516745bf_eafc4990_4b496089)
begin $display("E"); $finish; end
$display("Good.");
$finish;
end
always #5 clk = ~clk;
endmodule
