Subversion Repositories mips_fault_tolerant

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-- Company: 

-- Engineer: 

-- 

-- Create Date:    00:56:35 06/05/2012 

-- Design Name: 

-- Module Name:    Addr_dec - 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 Addr_dec is

      port  (

              addr : in std_logic_vector(1 downto 0);

                             dec_out: out std_logic_vector(3 downto 0)

                            );

end Addr_dec;

architecture Behavioral of Addr_dec is

begin

     process (addr)

           begin

           case  addr (1 downto 0) is

            when "00" => dec_out <= "1110";

            when "01" => dec_out <= "1101";

            when "10" => dec_out <= "1011";

            when "11" => dec_out <= "0111";

            when others => dec_out <= "1111";

      end case;

         end process;

end Behavioral;