Practica 2 Sistemas empbebidos

#include <16f877a.h>
#fuses XT, PUT, NODEBUG , NOBROWNOUT , NOPROTECT , NOLVP
#use delay(clock=4000000)


void main()
{
   
   int num_c;
   int num_d;
   int16 suma;
   
   //Entredas
   set_tris_d(0xFF);
   set_tris_c(0xFF);
   //Salidas
   set_tris_b(0XF0);
   set_tris_a(0X00);
   
   while(true)
   {
      num_c = input_c();
      num_d = input_d();
      
      suma = (int16) num_c + (int16)num_d;
      
      output_a(suma);
      
      output_b(suma >>  6);
   }
}