3 to 8 Decoder

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity Decoder is
port
(
Sel : in std_logic_vector(2 downto 0);

y : out std_logic_vector(7 downto 0)
);
end entity Decoder;

architecture Behavioral of Decoder is
begin
y <= "00000001" when Sel="000" else
"00000010" when Sel="001" else
"00000100" when Sel="010" else
"00001000" when Sel="011" else
"00010000" when Sel="100" else
"00100000" when Sel="101" else
"01000000" when Sel="110" else
"10000000";
end architecture Behavioral;