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;