counting up to 9999 now

project_6/project_6.srcs/sources_1/new/mux.vhd

@@ -0,0 +1,53 @@
+----------------------------------------------------------------------------------
+-- Company: 
+-- Engineer: 
+-- 
+-- Create Date: 09.03.2026 15:47:51
+-- Design Name: 
+-- Module Name: mux - 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 mux is
+    Port ( I0 : in STD_LOGIC_VECTOR (3 downto 0);
+           I1 : in STD_LOGIC_VECTOR (3 downto 0);
+           I2 : in STD_LOGIC_VECTOR (3 downto 0);
+           I3 : in STD_LOGIC_VECTOR (3 downto 0);
+           S : in STD_LOGIC_VECTOR (1 downto 0);
+           Y : out STD_LOGIC_VECTOR (3 downto 0));
+end mux;
+
+architecture Behavioral of mux is
+
+begin
+    with S select
+        Y <= I0 when "00",
+             I1 when "01",
+             I2 when "10",
+             I3 when "11",
+             "0000" when others;
+             
+end Behavioral;