library IEEE; use IEEE.STD_LOGIC_1164.ALL; entity bcddec is port( A: in std_logic_vector(3 downto 0); X: out std_logic_vector(7 downto 0)); end bcddec; architecture Behavioral of bcddec is begin X <= "00111111" when A = "0000" else "00000110" when A = "0001" else "01011011" when A = "0010" else "01001111" when A = "0011" else "01100110" when A = "0100" else "01101101" when A = "0101" else "01111101" when A = "0110" else "00100111" when A = "0111" else "01111111" when A = "1000" else "01101111" when A = "1001"; end Behavioral;