---------------------------------------------------------------------------------- -- Company: -- Engineer: -- -- Create Date: 04/30/2025 03:19:19 PM -- Design Name: -- Module Name: Add4Bits - Behavioral -- Project Name: -- Target Devices: -- Tool Versions: -- Description: -- -- Dependencies: -- -- Revision: -- Revision 0.01 - File Created -- Additional Comments: -- ---------------------------------------------------------------------------------- library IEEE; use IEEE.STD_LOGIC_1164.ALL; -- Uncomment the following library declaration if using -- arithmetic functions with Signed or Unsigned values --use IEEE.NUMERIC_STD.ALL; -- Uncomment the following library declaration if instantiating -- any Xilinx leaf cells in this code. --library UNISIM; --use UNISIM.VComponents.all; entity Add4Bits is Port ( X : in STD_LOGIC_VECTOR (0 to 3); Y : in STD_LOGIC_VECTOR (0 to 3); Ci : in STD_LOGIC; O : out STD_LOGIC_VECTOR (0 to 3); Co : out STD_LOGIC); end Add4Bits; architecture Behavioral of Add4Bits is begin end Behavioral;