Listing 1. Include Files

	#include <stdio.h>
	#include <math.h>
	...


	#include <sys/movedata.h>
	#include <keys.h>
	#include <dos.h>
	#include <pc.h>


	#include <vga.h>
	#include <vgamouse.h>
	#include <vgakeyboard.h>