Basys 2 Board’un 7-Segment Display’ine Sayı Yazdırmak[VHDL]

Daha fazla vaktim olsaydı aşağıdaki kodu seve anlatmayı isterdim ancak biraz acelem var Umarım birilerinin ve gelecekteki benin işine yarar. Kolay gele!

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use ieee.std_logic_arith.all;
use ieee.std_logic_signed.all;

entity substractor is
	port(x, y: in std_logic_vector(3 downto 0);
	segments: out std_logic_vector(7 downto 0);
	DNout: out std_logic_vector(3 downto 0));
end substractor;

architecture Behavioral of substractor is
signal temp: std_logic_vector(3 downto 0);
begin
process(x, y)
begin
	DNout <= "0111";
	temp <= x - y;
	if(temp="0000") then
		segments <= "00000011";
	elsif(temp="0001") then
		segments <= "10011111";
	elsif(temp="0010") then
		segments <= "00100101";
	elsif(temp="0011") then
		segments <= "00001101";
	elsif(temp="0100") then
		segments <= "10011001";
	elsif(temp="0101") then
		segments <= "01001001";
	elsif(temp="0110") then
		segments <= "11000001";
	elsif(temp="0111") then
		segments <= "00011111";
	elsif(temp="1000") then
		segments <= "00000001";
	elsif(temp="1001") then
		segments <= "00011001";
	elsif(temp="1010") then
		segments <= "00010001";
	elsif(temp="1011") then
		segments <= "11000001";
	elsif(temp="1100") then
		segments <= "01100011";
	elsif(temp="1101") then
		segments <= "10000101";
	elsif(temp="1110") then
		segments <= "01100001";
	elsif(temp="1111") then
		segments <= "01110001";
	else
		segments <= "11111111";
	end if;
end process;

end Behavioral;

Bu da .ucf dosyası.

#Pin assignment for slide switches
NET "x(3)" LOC = "n3";
NET "x(2)" LOC = "e2";
NET "x(1)" LOC = "f3";
NET "x(0)" LOC = "g3";
NET "y(3)" LOC = "b4";
NET "y(2)" LOC = "k3";
NET "y(1)" LOC = "l3";
NET "y(0)" LOC = "p11"; #it seems m4 on the board but the correct one is p11.

#Pin assignment for 7-segment displays
NET "segments(7)" LOC = "l14" ;
NET "segments(6)" LOC = "h12" ;
NET "segments(5)" LOC = "n14" ;
NET "segments(4)" LOC = "n11" ;
NET "segments(3)" LOC = "p12" ;
NET "segments(2)" LOC = "l13" ;
NET "segments(1)" LOC = "m12" ;
NET "segments(0)" LOC = "n13" ;
NET "DNout(3)" LOC = "f12";
NET "DNout(2)" LOC = "j12";
NET "DNout(1)" LOC = "m13";
NET "DNout(0)" LOC = "k14";