void func(volatile char value) {
  volatile char *ddra,*outa;
  volatile long 
  ddra = 0x21;
  outa = 0x22;
  *ddra = 0x01;
  *outa = 0x01;
  for
}
void setup() {
  // put your setup code here, to run once:
  volatile char input_val;
  volatile char *ddrf,*ddrk,*outf,*ink;
  ddrf = 0x30;
  ddrk = 0x107;
  outf = 0x31;
  ink = 0x106;
  *ddrf = 0x03;
  *ddrk = 0x00;
  while((input_val=*ink) == 0);
  while(input_val)
  {
    *outf = 0x01;
    func(input_val);
  }

}

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

}