#define makeLong(hi, low) (((long) hi)<<16 | (low))
#define highWord(w) ((w)>>16)
#define lowWord(w) ((w) & 0xffff)
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
}

void loop() {
  // put your main code here, to run repeatedly:
  int longValue = 0x1020304; 
  //int aWord;
  int loWord, hiWord;

  loWord = lowWord(longValue);
  hiWord = highWord(longValue);
  
  Serial.println(longValue, DEC);
  Serial.println(longValue, BIN);
  Serial.println(loWord, DEC);
  Serial.println(hiWord, DEC);
  

  Serial.print(hiWord, BIN);
  Serial.print("\t");
  Serial.println(loWord, BIN);

  longValue = makeLong(hiWord, loWord);
  Serial.println(longValue, DEC);
  delay(100000);
}