#include "setup.h"
#define MAX 4
#define DELAY 30000

int main()

{
  init_port(0x21);//DDRA
  init_port(0x24);//DDRB
  volatile long i;
  long j,k,res,sum_two,count;
  while(1)
  {
    volatile long out_address=0x22;//first we start with port A
    j=0;
    while(j<8)
    {
      while(count<MAX)
      {
        res=expo(2,j);
        sum_two+=res;
        count++;
        j++;
      }
      out(sum_two,out_address);
      for(i=0;i<DELAY;i++);
      count=0;
      sum_two=0;
    }
    out(0x00,out_address);


    out_address=0x25;//after port A is complete we go to port B
    j=0;
    while(j<8)
    {
      while(count<MAX)
      {
        res=expo(2,j);
        sum_two+=res;
        count++;
        j++;
      }
      out(sum_two,out_address);
      for(i=0;i<DELAY;i++);
      count=0;
      sum_two=0;
    }
    out(0x00,out_address);
    for(i=0;i<DELAY;i++);

    out_address=0x25;
    j=7;
    while(j>=0)
    {
      while(count<MAX)
      {
        res=expo(2,j);
        sum_two+=res;
        count++;
        j--;
      }
      out(sum_two,out_address);
      for(i=0;i<DELAY;i++);
      count=0;
      sum_two=0;
    }
    out(0x00,out_address);

    out_address=0x22;
    j=7;
    while(j>=0)
    {
      while(count<MAX)
      {
        res=expo(2,j);
        sum_two+=res;
        count++;
        j--;
      }
      out(sum_two,out_address);
      for(i=0;i<DELAY;i++);
      count=0;
      sum_two=0;
      out(0x00,out_address);
    }
    out(0x00,out_address);
    for(i=0;i<DELAY;i++);
  }
}