#pragma GCC optimize "-Og"
#include "ArduinoTrace.h"

volatile byte a=8,b=2,c=12;

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

//------------  process -----------------------
  // if ((a>b && a>c) ||b==c || a>8)
  // {
  //   a=a-b;
  // }
  // else
  // {
  //   a=a+b;
  // }
//---------------------------------------------
// Parte realizada en assembly
// asm goto(
//   "lds r19,a \n"
//   "lds r20,b \n"
//   "lds r21,c \n" // ya tengo esto
//   "sub r20,r19 \n"
//   "in r22,0x3F \n"
//   "sbrc r22,0 \n"----
//   "rjmp LI30 \n"
//   "rjmp LI10 \n"
//   "LI30:"
//   "sub r21,r19 \n"
//   "in r22,0x3F \n"
//   "sbrs r22,0 \n"
//   "rjmp LI10 \n"
//   "rjmp %l[L10] \n"
//   "LI10:"
//   "sub r20,r21 \n"
//   "in r22,0x3F \n"
//   "sbrs r22,1 \n"
//   "rjmp LI20 \n"
//   "rjmp %l[L10] \n"
//   "LI20:"
//   "cpi r19,9 \n"
//   "in r22,0x3F \n"
//   "sbrc r22,0 \n"
//   "rjmp %l[L20]"
//   :
//   :
//   :"r19","r20","r21","r22"
//   :L10,L20
// );
// Parte realizada con registros elegidos por el compilador 
asm goto( 

  "sub %1,%0 \n"
  "in %3,%4 \n"
  "sbrc %3,0 \n"
  "rjmp LI30 \n"
  "rjmp LI10 \n"
  "LI30:"
  "sub %2,%0 \n"
  "in %3,%4 \n"
  "sbrs %3,0 \n"
  "rjmp LI10 \n"
  "rjmp %l[L10] \n"
  "LI10:"
  "sub %1,%2 \n"
  "in %3,%4 \n"
  "sbrs %3,0 \n"
  "rjmp LI20 \n"
  "rjmp %l[L10] \n"
  "LI20:"
  "cpi %0,9 \n"
  "in %3,%4 \n"
  "sbrc %3,0 \n"
  "rjmp %l[L20]\n"

  :
  :"r" (a),"r" (b),"r" (c),"r" (a),"I" (_SFR_IO_ADDR(SREG))
  :
  :L10,L20
);

L10:
a = a-b;

goto L30;

L20:
a = a+b;

L30:


DUMP(a);
}

void loop() {
  // put your main code here, to run repeatedly:

}