buff.vhd

this program performs the functonality of 4 bit alu

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;


--library UNISIM;
--use UNISIM.VComponents.all;

entity buff is
    Port ( i : in std_logic_vector(3 downto 0);
           o : out std_logic_vector(3 downto 0));
end buff;

architecture Behavioral of buff is

begin
	o <= i;

end Behavioral;