> Van: Kennedy, William L <WLKennedy@CRT.XEROX.COM>
> Aan: PICLIST@MITVMA.MIT.EDU
> Onderwerp: multiple calls on 12c509
> Datum: maandag 11 januari 1999 18:29
>
> Has anyone dealt with the issue of calling a sub that in turn makes
multiple
> calls and returns and then needs to return from the sub.  Is there a way
to
> save the initial return address to use later on to get back?  It seems
that
> there is only a 2 deep stack on this chip.
>
> THanks in advance for any suggestions.

Store the "return" address (before calling) into (a) File register(s).
"Return" to this adres by loading the PCL (/ PCLATH).
Voilla ! a "pseudo" stack (1 address deep ;-)

Greetz,
  Rudy Wieser