ProgramCounter.vhd

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-- Company: 
-- Engineer: 
-- 
-- Create Date:    14:23:17 11/17/2017 
-- Design Name: 
-- Module Name:    ProgramCounter - 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 ProgramCounter is
    Port ( clr : in  STD_LOGIC;
           clk : in  STD_LOGIC;
           PC_in : in  STD_LOGIC_VECTOR (31 downto 0);
           PC_out : out  STD_LOGIC_VECTOR (31 downto 0));
end ProgramCounter;

architecture Behavioral of ProgramCounter is

begin

process(clr,clk,PC_in)
begin
if(clk'event and clk='1') then
	if(clr='1') then
		PC_out <= x"00000000";
	else
		PC_out <= PC_in;
	end if;
end if;
end process;


end Behavioral;