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From: davidsen@steinmetz.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Question: expanded memory on 386
Message-ID: <7179@steinmetz.steinmetz.UUCP>
Date: Tue, 1-Sep-87 11:02:25 EDT
Article-I.D.: steinmet.7179
Posted: Tue Sep  1 11:02:25 1987
Date-Received: Thu, 3-Sep-87 01:44:02 EDT
References: <2839@hoptoad.uucp> <804@unccvax.UUCP> <4310@teddy.UUCP>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Organization: General Electric CRD, Schenectady, NY
Lines: 28

In article <4310@teddy.UUCP> jpn@teddy.UUCP (John P. Nelson) writes:
|>Sorry Ted, but MS-DOS has a 640K byte limit.  Unless
|>you use a DOS extender you can't have programs running above
|>the 1Meg address boundry untill OS/2 comes out.
|
|Isn't there a commercial package that emulates LIM expanded memory, but
|really uses the 80286 extended memory?  The original question was about

There is a package for the 80386 from QuarterDeck, I believe it's called
QEMM but I don;t have a 386 config.sys handy. I've been running it for
almost six months as a base for DesqView, and have never had a problem
with it. The few LIM programs I've run have been okay, but I mainly use
it for multitasking.

There are similar packages for the 80286, but they actually have to move
stuff in memory, while the 386 can use the compatibility box hardware to
reduce overhead significantly. Without taking the QEMM apart with a
debugger I can't be sure that's what it does, but that's what I'm told,
and it's fast enough to keep me happy.

The 386 version also allows you 605k (as I recall) of program space per
process under DesqView. That's a good reason to run it even if you don't
want to multitask.

-- 
	bill davidsen		(wedu@ge-crd.arpa)
  {chinet | philabs | seismo}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me