Subversion Repositories mips_fault_tolerant

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-- Company: 

-- Engineer: 

-- 

-- Create Date:    21:29:54 06/19/2012 

-- Design Name: 

-- Module Name:    Reg_block - Behavioral 

-- Project Name: 

-- Target Devices: 

-- Tool versions: 

-- Description: 

--

-- Dependencies: 

--

-- Revision: 

-- Revision 0.01 - File Created

-- Additional Comments: 

--

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library IEEE;

use IEEE.STD_LOGIC_1164.ALL;

-- Uncomment the following library declaration if using

-- arithmetic functions with Signed or Unsigned values

--use IEEE.NUMERIC_STD.ALL;

-- Uncomment the following library declaration if instantiating

-- any Xilinx primitives in this code.

--library UNISIM;

--use UNISIM.VComponents.all;

entity Reg_block is

port (

      Clk : in std_logic;

                rst : in  STD_LOGIC;

                vector_on : in std_logic_vector(2 downto 0);

                Reg_Write : in std_logic;

                Reg_Imm_not : in std_logic;

                rs : in std_logic_vector(4 downto 0);

                rt : in std_logic_vector(4 downto 0);

                rd : in std_logic_vector(4 downto 0);

                Ext_sz_c   : in std_logic;

                immed_addr : in std_logic_vector(15 downto 0);

                Bus_W : in std_logic_vector(31 downto 0);

                A2Alu : out std_logic_vector(31 downto 0);

                B2Alu : out std_logic_vector(31 downto 0);

      I2Alu : out std_logic_vector(31 downto 0)

);

end Reg_block;

architecture Behavioral of Reg_block is

component reg_file_block is

port(

                Clk : in std_logic;

                rst : in  STD_LOGIC;

                vector_on : in std_logic_vector(2 downto 0);

                Reg_Write : in std_logic;

                Reg_Imm_not : in std_logic;

                rs : in std_logic_vector(4 downto 0);

                rt : in std_logic_vector(4 downto 0);

                rd : in std_logic_vector(4 downto 0);

                Bus_W : in std_logic_vector(31 downto 0);

                Bus_A : out std_logic_vector(31 downto 0);

                Bus_B : out std_logic_vector(31 downto 0)

                --result: out std_logic_vector(31 downto 0)

);

end component;

component Ext_sz is

port (

      clk : in  STD_LOGIC;

           rst : in  STD_LOGIC;

                immed_addr : in std_logic_vector(15 downto 0);

                Ext_sz_c   : in std_logic;

      Ext_sz     : out std_logic_vector(31 downto 0)

);

end component;

--signal Bus_A,Bus_B :std_logic_vector(31 downto 0);         

begin

Reg_block_b:reg_file_block port map(Clk=>Clk,rst=>rst,vector_on=>vector_on,Reg_Write=>Reg_Write,Reg_Imm_not=>Reg_Imm_not,

                                    rs=>rs,rt=>rt,rd=>rd,Bus_W=>Bus_W,Bus_A=>A2Alu,Bus_B=>B2Alu);

Ext_sz_b:Ext_sz port map (clk=>clk,rst=>rst,immed_addr=>immed_addr,

                                    Ext_sz_c =>Ext_sz_c,Ext_sz=>I2Alu);

end Behavioral;