program Fibonacci (print to stdout)
// Input:    None
// Output:   Prints nonnegative fibonacci numbers to standard output.
// -----------------------------------------------------------------------------

00: 0000   0
01: 0001   1

10: 8A00   RA <- mem[00]                 a = 0;
11: 8B01   RB <- mem[01]                 b = 1;
                                         do {
12: 9AFF   print RA                         System.out.println(a);
13: 1AAB   RA <- RA + RB                    a = a + b;
14: 2BAB   RB <- RA - RB                    b = a - b;
15: DA12   if (RA > 0) goto 12           } while (a > 0);
16: 0000   halt