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diff --git a/bench/vhdl/BinaryLog.vhd b/bench/vhdl/BinaryLog.vhd
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+--
+-- Output port with binary file log
+--
+-- Version : 0146
+--
+-- Copyright (c) 2001 Daniel Wallner (jesus@opencores.org)
+--
+-- All rights reserved
+--
+-- Redistribution and use in source and synthezised forms, with or without
+-- modification, are permitted provided that the following conditions are met:
+--
+-- Redistributions of source code must retain the above copyright notice,
+-- this list of conditions and the following disclaimer.
+--
+-- Redistributions in synthesized form must reproduce the above copyright
+-- notice, this list of conditions and the following disclaimer in the
+-- documentation and/or other materials provided with the distribution.
+--
+-- Neither the name of the author nor the names of other contributors may
+-- be used to endorse or promote products derived from this software without
+-- specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
+-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+-- POSSIBILITY OF SUCH DAMAGE.
+--
+-- Please report bugs to the author, but before you do so, please
+-- make sure that this is not a derivative work and that
+-- you have the latest version of this file.
+--
+-- The latest version of this file can be found at:
+--	http://www.opencores.org/cvsweb.shtml/t51/
+--
+-- Limitations :
+--
+-- File history :
+--
+
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity BinaryLog is
+	generic(
+		FileName		: string;
+		Bytes			: integer := 1;		-- Number of bytes per word
+		LittleEndian	: boolean := true	-- Byte order
+	);
+	port(
+		Clk				: in std_logic;
+		En				: in std_logic;
+		Data			: in std_logic_vector(Bytes * 8 - 1 downto 0)
+	);
+end BinaryLog;
+
+architecture behaviour of BinaryLog is
+
+	function to_char(
+		constant Byte : std_logic_vector(7 downto 0)
+	) return character is
+	begin
+		return character'val(to_integer(unsigned(Byte)));
+	end function;
+
+begin
+
+	process (clk)
+		type ChFile is file of character;
+		file OutFile : ChFile open write_mode is FileName;
+	begin
+		if Clk'event and Clk = '1' and En = '1' and now > 0 ns then
+			if LittleEndian then
+				for i in integer range 0 to Bytes - 1 loop
+					write(OutFile, to_char(Data(i * 8 + 7 downto i * 8)));
+				end loop;
+			else
+				for i in integer range Bytes - 1 downto 0 loop
+					write(OutFile, to_char(Data(i * 8 + 7 downto i * 8)));
+				end loop;
+			end if;
+		end if;
+	end process;
+
+end;