Subversion Repositories xmatchpro

--This library is free software; you can redistribute it and/or
--modify it under the terms of the GNU Lesser General Public
--License as published by the Free Software Foundation; either
--version 2.1 of the License, or (at your option) any later version.
 
--This library is distributed in the hope that it will be useful,
--but WITHOUT ANY WARRANTY; without even the implied warranty of
--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
--Lesser General Public License for more details.
 
--You should have received a copy of the GNU Lesser General Public
--License along with this library; if not, write to the Free Software
--Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
-- e_mail : j.l.nunez-yanez@byacom.co.uk
 
--------------------------------------
--  ENTITY       = PIPELINE_R1_D      --
--  version      = 1.0              --
--  last update  = 1/08/99          --
--  author       = Jose Nunez       --
--------------------------------------
 
 
-- FUNCTION
-- pipeline R1_D for decompression
 
 
library IEEE;
use IEEE.std_logic_1164.all;
 
 
 
entity PIPELINE_R1_D is
 
		port(
			FULL_HIT_IN:in bit;
			MATCH_TYPE_IN:in bit_vector(3 downto 0);
			MATCH_LOC_IN:in bit_vector(3 downto 0);
			LIT_DATA_IN:in bit_vector(31 downto 0);
			LIT_MASK_IN : in bit_vector(4 downto 0);
			MOVE_ENABLE_D_IN:in bit;
			CLEAR:in bit;
			RESET : in bit;
			CLK:in bit;
			FULL_HIT_OUT:out bit;
			MATCH_TYPE_OUT:out bit_vector(3 downto 0);
			MATCH_LOC_OUT:out bit_vector(3 downto 0);
			LIT_DATA_OUT:out bit_vector(31 downto 0);
			LIT_MASK_OUT : out bit_vector(4 downto 0);
			MOVE_ENABLE_D_OUT:out bit
 
		);
 
end PIPELINE_R1_D;
 
architecture STRUCTURAL of PIPELINE_R1_D is
 
signal MOVE_ENABLE_D_OUT_aux : bit;
 
begin
 
 
  process(CLK,CLEAR)
 
  begin
 
    if (CLEAR='0') then
                MOVE_ENABLE_D_OUT_aux<='1';
    elsif ((CLK'event) and (CLK='1')) then
		 if (RESET='0') then
			    MOVE_ENABLE_D_OUT_aux<='1';
      	 else         
			    MOVE_ENABLE_D_OUT_aux<=MOVE_ENABLE_D_IN;
		 end if;
    end if;
 end process;
 
 MOVE_ENABLE_D_OUT<=MOVE_ENABLE_D_OUT_aux;
 
 FULL_HIT_OUT<=FULL_HIT_IN;
 MATCH_TYPE_OUT<=MATCH_TYPE_IN;
 MATCH_LOC_OUT<=MATCH_LOC_IN;
 LIT_DATA_OUT<=LIT_DATA_IN;
 LIT_MASK_OUT<= LIT_MASK_IN;
 
 
 
end structural;