Subversion Repositories xucpu

-- Copyright 2015, Jürgen Defurne

--

-- This file is part of the Experimental Unstable CPU System.

--

-- The Experimental Unstable CPU System 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 3 of the

-- License, or (at your option) any later version.

--

-- The Experimental Unstable CPU System 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 Experimental Unstable CPU System. If not, see

-- http://www.gnu.org/licenses/lgpl.txt.

LIBRARY IEEE;

USE IEEE.STD_LOGIC_1164.ALL;

USE IEEE.numeric_std.ALL;

PACKAGE components IS

  COMPONENT data_reg

    GENERIC(

      w_data      : NATURAL RANGE 1 TO 32 := 16;

      reset_value : NATURAL               := 0);

    PORT (RST : IN  STD_LOGIC;

          CLK : IN  STD_LOGIC;

          ENA : IN  STD_LOGIC;

          D   : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

          Q   : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT queue IS

    GENERIC (

      w_data : NATURAL RANGE 1 TO 32 := 16);

    PORT (

      rst   : IN  STD_LOGIC;

      clk   : IN  STD_LOGIC;

      we    : IN  STD_LOGIC;

      sh    : IN  STD_LOGIC;

      clear : IN  STD_LOGIC;

      full  : OUT STD_LOGIC;

      empty : OUT STD_LOGIC;

      d     : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

      q     : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0));

  END COMPONENT queue;

  COMPONENT regf IS

    GENERIC (

      w_data : NATURAL RANGE 1 TO 32 := 16;

      w_addr : NATURAL               := 4);

    PORT (clk : IN  STD_LOGIC;

          we  : IN  STD_LOGIC;

          a1  : IN  STD_LOGIC_VECTOR(w_addr - 1 DOWNTO 0);

          a2  : IN  STD_LOGIC_VECTOR(w_addr - 1 DOWNTO 0);

          d   : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

          q1  : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

          q2  : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT alu IS

    GENERIC(

      w_data : NATURAL RANGE 1 TO 32 := 16);

    PORT(

      clk : IN  STD_LOGIC;

      op  : IN  STD_LOGIC_VECTOR(3 DOWNTO 0);

      A   : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

      B   : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

      Y   : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT incr

    GENERIC(

      w_data : NATURAL RANGE 1 TO 32 := 16);

    PORT(

      A : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

      Y : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT memory IS

    GENERIC(

      w_data : NATURAL RANGE 1 TO 32 := 16);

    PORT(clk : IN  STD_LOGIC;

         A1  : IN  STD_LOGIC_VECTOR(14 DOWNTO 0);

         B1  : IN  STD_LOGIC_VECTOR(14 DOWNTO 0);

         we  : IN  STD_LOGIC;

         D   : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

         A   : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

         B   : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT gpio_in

    GENERIC(

      w_data : NATURAL RANGE 1 TO 32 := 16;

      w_port : NATURAL RANGE 1 TO 32 := 16);

    PORT (rst     : IN  STD_LOGIC;

          clk     : IN  STD_LOGIC;

          ena     : IN  STD_LOGIC;

          Q       : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

          port_in : IN  STD_LOGIC_VECTOR(w_port - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT gpio_out

    GENERIC(

      w_data : NATURAL RANGE 1 TO 32 := 16;

      w_port : NATURAL RANGE 1 TO 32 := 16);

    PORT (rst      : IN  STD_LOGIC;

          clk      : IN  STD_LOGIC;

          ena      : IN  STD_LOGIC;

          we       : IN  STD_LOGIC;

          D        : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

          Q        : OUT STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

          port_out : OUT STD_LOGIC_VECTOR(w_port - 1 DOWNTO 0));

  END COMPONENT;

  COMPONENT decoder

    PORT (

      clk     : IN  STD_LOGIC;

      ena     : IN  STD_LOGIC;

      a1      : IN  STD_LOGIC_VECTOR(14 DOWNTO 0);

      gpio_1  : OUT STD_LOGIC;

      gpio_2  : OUT STD_LOGIC;

      gpio_3  : OUT STD_LOGIC;

      bus_sel : OUT STD_LOGIC_VECTOR(2 DOWNTO 0));

  END COMPONENT;

  COMPONENT zerof

    GENERIC (

      w_data : NATURAL RANGE 1 TO 32 := 16);

    PORT (

      A    : IN  STD_LOGIC_VECTOR(w_data - 1 DOWNTO 0);

      zero : OUT STD_LOGIC);

  END COMPONENT;

  COMPONENT clock_gen

    PORT (

      CLK_IN    : IN  STD_LOGIC;

      RESET     : IN  STD_LOGIC;

      CLK_VALID : OUT STD_LOGIC;

      CLK_OUT   : OUT STD_LOGIC

      );

  END COMPONENT;

  COMPONENT sync_reset

    PORT (

      async_rst : IN  STD_LOGIC;

      clk       : IN  STD_LOGIC;

      clk_valid : IN  STD_LOGIC;

      rst       : OUT STD_LOGIC);

  END COMPONENT;

  COMPONENT control

  END COMPONENT;

END components;