library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;

entity ENKODER is 
			port( 
			TASTER    : in std_logic_vector(9 downto 0);
			EINSTELL	 : in std_logic_vector(3 downto 0);
	      AUSGABE   : out std_logic_vector(3 downto 0);
			INTERRUPT : out std_logic
			);      
end ENKODER;

architecture VERHALTEN of ENKODER is
	signal TASTINT  : std_logic;
	--signal EINSTINT : std_logic;
begin

AUSGABE <= 	"0000" when TASTER = "0000000000" else	-- 0 eigentlich nicht definiert
				"0000" when TASTER = "0000000001" else
				"0001" when TASTER = "0000000010" else
				"0010" when TASTER = "0000000100" else
				"0011" when TASTER = "0000001000" else
				"0100" when TASTER = "0000010000" else
				"0101" when TASTER = "0000100000" else
				"0110" when TASTER = "0001000000" else
				"0111" when TASTER = "0010000000" else
				"1000" when TASTER = "0100000000" else
				"1001" when TASTER = "1000000000";
				
TASTINT <= 	'0' when TASTER = "0000000000" else		 -- 0 eigentlich nicht definiert
				'1' when TASTER = "0000000001" else
				'1' when TASTER = "0000000010" else
				'1' when TASTER = "0000000100" else
				'1' when TASTER = "0000001000" else
				'1' when TASTER = "0000010000" else
				'1' when TASTER = "0000100000" else
				'1' when TASTER = "0001000000" else
				'1' when TASTER = "0010000000" else
				'1' when TASTER = "0100000000" else
				'1' when TASTER = "1000000000";
				
--EINSTINT <= '0' when EINSTELL = "0000" else
--				'1' when EINSTELL = "0001" else
--				'1' when EINSTELL = "0010" else
--				'1' when EINSTELL = "0100" else
--				'1' when EINSTELL = "1000";

INTERRUPT <= TASTINT; -- or EINSTINT;



end VERHALTEN;