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Mail Archives: djgpp/2000/06/11/21:30:36.1

From: Nate Eldredge <neldredge AT hmc DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: far pointers
Date: 11 Jun 2000 18:22:22 -0700
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"Alexei A. Frounze" <see_below AT the_messasge_body DOT com> writes:

> Nate Eldredge wrote:

> > AFAIK, this is not true.  If you boot DOS without himem.sys or other
> > memory manager, then run a DJGPP program using cwsdpmi, you can do
> > disk I/O and everything else without ever entering V86 mode.  You just
> > go backa and forth between protected and real modes.
> 
> You're wrong. 
> 1. HIMEM.SYS has nothing about V86. It just allows to access extended ram
> (above 1MB mark).

I may have been mistaken.  However, I believe there is some standard
memory manager (perhaps EMM386) that causes DOS to run in V86 rather
than real mode.  But without it, DOS runs in real mode, and DJGPP
programs run in protected mode.

-- 

Nate Eldredge
neldredge AT hmc DOT edu

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