#include <conio.h>
void main( void ){
int i;
long j;
while (!kbhit()){//write bytes to the parallel port until the user hits any key on the keyboard
	outp(0x378, i++);//0x278 is lpt2
	for(j=0; j<100000; j++);//count up to some large number to slow the thing down.
	}//while
}//main