// 0x04 DDRB
// 0x05 PORTB

void setup() {
  Serial.begin(115200);
  pinMode(13, OUTPUT);
  __asm__ volatile(
    "in r17,0x04\n"
    "ori r17,0x20\n"
    "out 0x04, r17\n");
}

void doff() {
  delay(550);
  digitalWrite(12, LOW);
}

void ledOn() {
  __asm__ volatile(
    "in r17,0b01\n"
    "ori r17,0x20\n"
    "out 0x05, r17\n");
  //  PORTB = 1 << 5;
}

void ledOff() {
  __asm__ volatile(
    "in r16,0x05\n"
    "andi r16,0xdf\n"
    " out 0x05, r16");
  //PORTB = 0 << 5;
}


int i = 0, j = 3;
void loop() {
  ledOn();
  Serial.println(DDRB, HEX);
  delay(300);
  //  ledOff();
  Serial.print("off ");
  Serial.println(PORTB, HEX);
  delay(300);
}