keio

-- VHDL BIT OPERATIONS

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

entity bitops is
    Port( A :  in std_logic_vector(3 downto 0);
          B :  in std_logic_vector(3 downto 0);