/*
 * Vertikalzaehler.c
 *
 * Created: 25.04.2023 15:06:24
 * Author : Ich
 */ 
#include <avr/io.h>

int main(void)
{
  for(;;) { 
    static unsigned char cnt0 = 255, cnt1 = 255;

    cnt1 = cnt1 ^ cnt0;
    cnt0 = ~cnt0;
  }
}