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Article #1565

Re: Disabling upper 2 megs.

#1565
From: Volker A. Brandt
Date: Tue, 14 Apr 1992 15:32
23 lines
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In article <swwhatley.703171240@node_ecdd> swwhatley@lescsse.jsc.nasa.gov (STEVEN WHATLEY) writes:
>In <92104.033254JJL101@psuvm.psu.edu> J.J. Lehett <JJL101@psuvm.psu.edu> writes:
>>I am looking for a program that will disable EXACTLY that upper 2 megs of
>>ram, and leave the ST in a state as if this were not installed.  I need this
>>to test out some problems I have encountered.
>[...] I create a 2 meg ram disk using a reset
>proof ram disk like MEGMATIC (sp?).  That solved my problems.  Hope it helps.

That would be my suggestion too.  I once wrote a RAM disk called EDISK, a tiny,
ultra-fast, reset-proof RAM disk utility.

This RAM disk reserves the requested amount of memory, and executes a reset.
When the system comes back up, the memory addresses are exactly the same as
they would be in an ST equipped with that much less RAM. (I checked.)

I suggest that you use this trick.

-- Volker
-- 
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Bitnet:   UNM409@DBNRHRZ1                              Volker A. Brandt
UUCP:     ...!unido!DBNRHRZ1.bitnet!unm409             Angewandte Mathematik
Internet: volker@sfb256.iam.uni-bonn.de                (Bonn, Germany)
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Path: arc1-ca.pugleaf.net!sparky!uunet!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!unido!olymp!sfb256!volker
From: volker@sfb256.iam.uni-bonn.de ( Volker A. Brandt )
Newsgroups: comp.sys.atari.st
Subject: Re: Disabling upper 2 megs.
Message-ID: <1992Apr14.153228.16089@olymp.informatik.uni-bonn.de>
Date: 14 Apr 92 15:32:28 GMT
References: <92104.033254JJL101@psuvm.psu.edu> <swwhatley.703171240@node_ecdd>
Sender: usenet@olymp.informatik.uni-bonn.de
Organization: Applied Math, University of Bonn, Germany
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