/*
  Colocar as funções em Assembly no arquivo aguardar.S 
  Referências: 
  https://www.bitbanging.space/posts/mixing-c-and-assembly-for-avr-microcontrollers
  http://tlc.iith.ac.in/img/gvv_neelmani_gcc_assembly.pdf
  https://msoe.us/taylor/tutorial/ce2810/candasm
 */
#define _MS(ms) (F_CPU * (float) ms / 1000 / 6)
#include <avr/io.h>

extern "C" void aguardar(long);

int main(void) {
  DDRB |=  (1 << DDB5);
  while (1) {
    PORTB ^= (1 << PORTB5);
    aguardar(_MS(1000));
  }
}