--------------------------------------------------
--  CREACIO DE BARRES VERTICALS                 --
-- Creat per: Lluís Magí  1998						--
--------------------------------------------------
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;    

ENTITY bar IS
	PORT(
		clk_pixel			: IN	STD_LOGIC; 
		sync_v				: IN	STD_LOGIC;
		sync_h				: IN	STD_LOGIC;
		x			        : in	unsigned(10 downto 0);
		video_out			: out	std_logic_vector(23 downto 0)
	);

END bar;

ARCHITECTURE behaviour OF bar IS
BEGIN

	PROCESS(clk_pixel)
	BEGIN
		if rising_edge(clk_pixel) then
			if sync_v='1' and sync_h='0' then
				if x<70 then
					video_out<="111111111111111111111111";
				elsif x<140 then
					video_out<="111111111111111100000000";
				elsif x<210 then
					video_out<="000000001111111111111111";
				elsif x<280 then
					video_out<="000000001111111100000000";
				elsif x<350 then
					video_out<="111111110000000011111111";
				elsif x<420 then
					video_out<="111111110000000000000000";
				elsif x<490 then
					video_out<="000000000000000011111111";
				else
					video_out<="000000000000000000000000";
				end if;
			end if;
		end if;
	end process;
end behaviour;