Am Montag 10 November 2008 16:04:12 schrieb Leon Wagner:
> Stephen Pelc said...
> <snip>
>
> > In addition MPE Forths use the return stack for saving the
> > result of SAVE-INPUT.
>
> The FORTH, Inc. implentations do this as well. I'm not interested in
> implementing a separate stack for this.

The only implementation I know of that doesn't use the return stack is
Gforth's implementation. It uses a field in the input buffer structure for
backlinking. bigFORTH's implementation uses the return stack, too, and
Gforth's old implementation did so, as well.

--
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://www.jwdt.com/~paysan/