void setup() {
  // put your setup code here, to run once:
  volatile char *dirf, *dirk, x;
  volatile char *outf, *ink;
  volatile long i;
  dirf = 0x30; dirk = 0x107;
  outf = 0x31; ink = 0x106;
  *dirf = 0xFF; *dirk = 0x00;
  while(1)
  {
    //*outf = 0x00;
    x =*ink;
    *outf = 0x10;
    if(((x & 0x02)==0x02))
    {
      *outf = 0x00;
      delay(1000);
    }
    else{
      //*outf = 0x10;
    }
    
  }
  /*while(1)
  {
    x = *ink;
    if(((x & 0x01)==0x01)||((x & 0x02)==0x02)||((x & 0x04)==0x04)||((x & 0x08)==0x08)||
    ((x & 0x10)==0x10)||
    ((x & 0x20)==0x20)||((x & 0x40)==0x40)||((x & 0x80)==0x80))
    {
      *outf = 0x01;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x02;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x04;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x08;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x10;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x20;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x40;
      delay(1000);
      *outf = 0x00;
      delay(1000);
      *outf = 0x80;
      delay(1000);
      *outf = 0x00;
      delay(1000);
    }
  }*/
  /*while(1)
  {
    x = *ink;
    if(((x & 0x01)==0x01)||((x & 0x02)==0x02)||((x & 0x04)==0x04)||((x & 0x08)==0x08)||
    ((x & 0x10)==0x10)||
    ((x & 0x20)==0x20)||((x & 0x40)==0x40)||((x & 0x80)==0x80))
    {
      for(i=0;i<8;i++)
      {
        *outf = 0x01<<i;
        delay(500);
        *outf = 0x00<<i;
      }
    }
    else{
      *outf = 0x00;
    }
  }*/
  /*while(1)
  {
    x = *ink;
    if((x & 0x01)==0x01)
    {
      *outf = 0x01;
    }
    else if((x & 0x02)==0x02)
    {
      *outf = 0x02;
    }
    else if((x & 0x04)==0x04)
    {
      *outf = 0x04;
    }
    else if((x & 0x08)==0x08)
    {
      *outf = 0x08;
    }
    else if((x & 0x10)==0x10)
    {
      *outf = 0x10;
    }
    else if((x & 0x20)==0x20)
    {
      *outf = 0x20;
    }
    else if((x & 0x40)==0x40)
    {
      *outf = 0x40;
    }
    else if((x & 0x80)==0x80)
    {
      *outf = 0x80;
    }
    else
    {
      *outf = 0x00;
    }
  }*/

}

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

}