void disp(volatile char);
#define VALUE 0x0f
void setup() {
  volatile char *dir_f=0x30, *out_f=0x31, *dir_k=0x107, *out_k=0x108;
  *dir_f=0xff; *dir_k=0xff;
  //for(volatile long i=0; i<0; i++){
    *out_f=VALUE; *out_k=~(VALUE);
  //}
  

}

void disp(volatile char let){
  volatile char code;
  //if(let=='A'){
    
 // }
}

void loop(){

}