buffe.vhd

此为一用VHDL编写的硬件游戏程序

library ieee;
use ieee.std_logic_unsigned.all;
use ieee.std_logic_1164.all;
entity buffe is
port (din :in std_logic;
      en :in std_logic;
      do :out std_logic);
end buffe;
    
architecture dataflow of buffe is
begin
   do<=din when(en='1') else 'Z';
end dataflow;