include/07.pit/pit02.c


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void timer_handler()
{
    tick++;
    if(tick==TICKS_PER_SECOND)
    {
	//printf("%d seconds passed\n",time);
	tick=0;
	time++;
    }

    ioport_out(0x20, 0x20);
    ioport_out(0xa0,0x20);
}