#include <stdio.h>
#include <unistd.h>
#include <asm/io.h>
#include <asm/system.h>

void main(int argc, char *argv[]) {

   int a;

   iopl(3);
   
	outb(0xa0,0x1f6); usleep(100000);
	outb(0x42,0x1f1); usleep(100000);
	outb(0xfe,0x1f2); usleep(100000);
	outb(0xef,0x1f7); usleep(100000);
}