Path: utzoo!mnetor!uunet!husc6!mit-eddie!uw-beaver!cornell!batcomputer!sun!nelson
From: nelson@sun.soe.clarkson.edu (Russ Nelson)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Expanded memory fron extended memory?
Message-ID: <251@sun.soe.clarkson.edu>
Date: 8 Jan 88 15:03:31 GMT
References: <1127@hp-sdd.HP.COM>
Reply-To: nelson@sun.soe.clarkson.edu.UUCP (Russ Nelson)
Organization: Clarkson University, Potsdam, NY
Lines: 10
Keywords: device driver EMS extended expanded LIM 4.0

In article <1127@hp-sdd.HP.COM> hoff@hp-sdd.UUCP (Tom Hoff) writes:
>...What I need
>is a device driver to turn 80286 extended memory in to LIM EMS memory.

No can do, according to some sources.  The LIM EMS spec lets you map one
memory block to multiple main memory windows.  The emulator(s) work by
copying from extended memory into read main memory.  I think that you
can see what this copying would do to software that expected to be able
to modify the SAME block of memory at two addresses.  :-(
-russ