#include"header.h"

void setup() {
  // put your setup code here, to run once:
  port_init();
  while(1){
    char x;
    volatile long i;
    for(x=0;x<8;x++) //right shift
    {
      output(1<<x);  //1,2,4,8,16,32,64,128
      for(i=0;i<100000;i++);
    }
    for(x=7;x>=0;x--)
    {
      output(1<<x);  //128,64,32,16,8,4,2,1
      for(i=0;i<100000;i++);
    }
    }
}

void loop() {
  // put your main code here, to run repeatedly:
  
}