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

  }
}

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

}