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From: dubuc@IRO.UMontreal.CA (Martin Dubuc)
Newsgroups: comp.sys.mac.programmer
Subject: Memory management problem
Message-ID: <1990Aug15.154812.9145@IRO.UMontreal.CA>
Date: 15 Aug 90 15:48:12 GMT
Sender: news@IRO.UMontreal.CA
Reply-To: dubuc@IRO.UMontreal.CA (Martin Dubuc)
Organization: Universite de Montreal
Lines: 22

I recently modified the MultiXfer telecom app. All worked well until
I tested it on a Mac Plus/SE. It seems to me that there is a memory problem.
My program works on a II, IIcx and IIci, but as soon as I execute it on a Plus
or SE it bombs in my initialization routine, more precisely after the 
initialization of the managers, as soon as I access memory (while
accessing an array or a pointer).

I tried to correct the problem by allocating more memory with:

	SetApplLimit((Ptr) ApplicZone() + 256000L);
	MaxApplZone();

but the application now bombs when it calls MaxApplZone.

Can someone point out what are the usual cases of incompatibility between a
II and a Plus/SE or explain what happens in this particular situation?

   Martin Dubuc                     Local S-242, Pavillon Principal
   dubuc@IRO.UMontreal.CA           Universite de Montreal
   Tel.: (514) 343-6111, poste 3507

"Qui a dit que rien ne pouvait arreter le progres?" -- un bureaucrate