0  Local cell:   Name:
0  0             x
0  1             1
0  2             2
0  3             3
0  4             x==1, x % 2

4 5  allocate local cells in main stack frame

22 1 1      set the literals
22 2 2
22 3 3

27 0   x <- input

1 1001   top of loop
14 4 0 1   local cell 4 <-  x == 1

8 1002 4    if x==1 exit loop

28 0    println x
29

13 4 0 2   local cell 4 <- x%2, so is 0 if x even, 1 if x odd

8 1003 4   if x is odd jump   

   0  didn't jump so x is even
   12 0 0 2    x <- x / 2

7 1004    skip over x odd code
1 1003  start of x odd case

   11 0 0 3   x <- x*3
    9 0 0 1   x <- x+1

1 1004

7 1001   jump to top of loop

1 1002   exit loop

26