decoder3.vhd

来自「vhdl code for GIF Image Viewer」· VHDL 代码 · 共 26 行

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

entity decoder3 is
    Port ( i : in std_logic_vector(2 downto 0);
           o : out std_logic_vector(7 downto 0));
end decoder3;

architecture Behavioral of decoder3 is

begin

with i select o <=
	x"01" when "000",
	x"02" when "001",
	x"04" when "010",
	x"08" when "011",
	x"10" when "100",
	x"20" when "101",
	x"40" when "110",
	x"80" when others;

end Behavioral;