#pragma GCC optimize ("Og")
#include "ArduinoTrace.h"

volatile uint16_t da=37654;
//volatile byte n=8,sum;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("INICIO");

  //------------- Proceso en alto nivel -------------------
//da=da+12785;
// asm(
//   "lds r16,da \n" // r16 <--- lsbyte de da
//   "lds r17,da+1 \n" //r17 <--- msbyte de da
//   "subi r16,lo8((-12785)) \n" //lo8((-12785)) lsbyte r16 <---lo8((da +12785))
//   "sbci r17,hi8((-12785)) \n" // hi8 msbyte r17 <---hi8((da +12785))
//   "sts da,r16 \n"
//   "sts da+1,r17 \n"
//   ::: "r16","r17"
// );
asm(
  "lds r16,da \n" // r16 <--- lsbyte de da
  "lds r17,da+1 \n" //r17 <--- msbyte de da
  "subi r16,0x0f \n" //lo8((-12785)) lsbyte r16 <---lo8((da +12785))
  "sbci r17,0xce \n" // hi8 msbyte r17 <---hi8((da +12785))
  "sts da,r16 \n"
  "sts da+1,r17 \n"
  ::: "r16","r17"
);
  //------------------------------------------------------

DUMP(da);
}
void loop() {

}