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Path: utzoo!mnetor!seismo!mcvax!unido!roof
From: roof@unido.UUCP (Systemverwalter und super user)
Newsgroups: comp.sys.atari.st
Subject: Re: Rwabs question
Message-ID: <181@unido.UUCP>
Date: Wed, 4-Feb-87 11:23:40 EST
Article-I.D.: unido.181
Posted: Wed Feb  4 11:23:40 1987
Date-Received: Sat, 7-Feb-87 06:49:31 EST
References: <613@eneevax.UUCP>
Organization: University of Dortmund, W-Germany
Lines: 20
Summary: nasty desktop bug

In article <613@eneevax.UUCP>, iarocci@eneevax.UUCP (Bill Dorsey) writes:
> I wrote a program which intercepts the Rwabs call through the Rwabs vector at
> 0x476 and noticed something really strange.  It seems that the operating system
> sometimes calls Rwabs with the buffer argument set to zero.  Does this mean
> .........

This is a "funny feature" of the GEM(TM) desktop. Whenever you change a
folder, the desktop reads the boot sektor (block 0) at adress 0 in
USERMODE!! I discovered this when i wrote a track buffering mechanism
(soon to be released). Under MWC shell this works fine but the desktop
bombed me out of business. My solution was simply use the old routine
when a bufferadress 0 is requested.

	Andreas Toenne
	University of Dortmund
	Dept. of CS, IRB
	at@unido.uucp
	at@unido.bitnet
	....!seismo!unido!at
	Some mailer choke on my name. Change it to toenne then