local p_mainCycle = 0xF54D
local mainCycle = 0
local oldCycle = 5
local height = client.screenheight( );

while true do
	mainCycle = mainmemory.readbyte(p_mainCycle)
	if mainCycle == 3 then
		gui.drawRectangle(0,(height/2)-4,4,4,"green","green")
	end
	
	if mainCycle == oldCycle then
		gui.drawRectangle(4,(height/2)-4,4,4,"red","red")
	end
	oldCycle = mainCycle
	
	emu.frameadvance();
end