1
  2     mov r2, 10
  3 loop2:
  4     dec r2
  5     test r2 r2
  6     jz out
  7
  8     mov r1, 10
  9 loop1:
 10     dec r1
 11     test r1 r1
 12     jz loop2
 13     jmp loop1
 14
 15 out:
 16     ...