Date: Wed, 23 Apr 1997 14:16:53 +0200 (MET DST)
From: Mark Habersack <grendel AT hoth DOT amu DOT edu DOT pl>
Reply-To: grendel AT hoth DOT amu DOT edu DOT pl
To: pierre AT tycho DOT com
cc: opendos-developer AT delorie DOT com
Subject: Re: Usage of directory entries
In-Reply-To: <Pine.LNX.3.95.970422130006.19094A-100000@55-174.hy.cgocable.ca>
Message-ID: <Pine.BSI.3.96.970423141425.12655D-100000@hoth.amu.edu.pl>
Organization: PPP (Pesticide Powered Pumpkins)
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On Tue, 22 Apr 1997, Pierre Phaneuf wrote:

> On Tue, 22 Apr 1997, Mark Habersack wrote:
> 
> > > provide buggy DPMI services, but it is version 0.9 if I remember right...
> > Maybe... I don't use it anyway. CWSDPMI is much better. Anyhow, EMM is a 
> > pmode server as it provides VCPI services to the system.
> 
> Yes, but I was only thinking about DPMI... EMM386 runs all the time (i.e.:
> it's not REALLY a TSR), it doesn't exit, but starts a V86 task for the
EMM is not at all a TSR - it's a device driver (or rather three of them: XMS,
EMS and VCPI are all devices) which, as a "side effect" provides DPMI
services. And running in pmode it has to start RM apps as V86 tasks (or, to be
more precise, create virtual machines) to be able to emulate the RM dos
environment accurately and effectively.

 > computer to run in... Odd... Made me think about the old versions
of > SmartDrive that ran in "Voodoo mode" (AKA "flat real mode")...
But the guts of EMM are 95% pmode.