#include "8_leds.h"

void setup() {
  // put your setup code here, to run once:
  init_port();
}

void loop() {
  // put your main code here, to run repeatedly:
  char x;
  volatile long i;

  for (x = 0; x < 8; x++) {
    output(1 << x);
    for (i = 0; i < 100000; i++);
  }

  for (x = 7; x >= 0; x--) {
    output(1 << x);
    for (i = 0; i < 100000; i++);
  }
}