Wicke's RPL paper in Journal of Applied Forth Research?

[David Hayden]

The meat of the interpreter is described on page 7 of RPLMAN. Note that in theory the first word of a prolog points to itself, but as described in the middle of the page, in practice it is a word that does something useful during indirect execution and points to something useful (PRLG) during direct execution.

So if you look at an object prolog with JAZZ, it won't match the first description.

Also, many objects don't return to the inner loop when they are done. Instead they just execute a copy of the inner loop code. This saves the time taken by the jump.

Dave