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From: dgold@apple.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Global blowing away Mac II?
Message-ID: <606@apple.UUCP>
Date: Tue, 7-Apr-87 23:22:39 EST
Article-I.D.: apple.606
Posted: Tue Apr  7 23:22:39 1987
Date-Received: Sat, 11-Apr-87 05:11:28 EST
References: <2236@cit-vax.Caltech.Edu>
Reply-To: dgold@apple.UUCP (David Goldsmith)
Distribution: world
Organization: Apple Computer Inc., Cupertino, USA
Lines: 23

In article <2236@cit-vax.Caltech.Edu> woody@tybalt.caltech.edu (William Edward Woody) writes:
>
>The Megamax C compiler library stuff insists upon using the magic location
>694 decimal (2B6 hex) in low memory to store a long word of data.  For some
>reason programs compiled using version 3.0 of the C compiler crashes a
>Mac II, and I think it may be because of this.

You are absolutely correct.  This memory location was reserved for use by
Apple (it was named BasicGlob and used to be reserved for the never-
released MacBasic, but I don't recall seeing anything which told people
they could use it).  As of system 4.1, we're using this location on all
machines (Mac Plus, Mac SE, and Mac II).  Any program which trashes this
location will cause a machine running System 4.1 (Mac II being the best
example) to crash.
-- 
David Goldsmith
Apple Computer, Inc.
MacApp Group

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