/*
 * Tony Givargis
 */

/*---------------------------------------------------------------------------*/

#pragma SMALL
#include <reg51.h>

/*---------------------------------------------------------------------------*/

void Delay(void) {

	int time = 32000;

	while( --time > 0 );
}

/*---------------------------------------------------------------------------*/

void main(void) {

	int i;
   
	for(;;) {

		for(i=0; i<16; i++) {

			P1 = i;
			Delay();
		}
		for(i=15; i>=0; i--) {

			P1 = i;
			Delay();
		}
	}
}