From:	"Alexei A. Frounze" <see_below AT the_messasge_body DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: far pointers
Date:	Mon, 12 Jun 2000 20:18:24 +0400
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Eli Zaretskii wrote:
> 
[snip]
> > But not always. :) Switching back to real mode implies that 1st MB must be
> > free for that.
> 
> Not true.  All you need is that DOS and BIOS code/data be in memory,
> which is always so on a DOS machine.
> 
> CWSDPMI can run DJGPP programs on a machine with no V86, only 64KB of
> conventional memory, and NO extended memory.  It was demonstrated to
> work (albeit slowly, with lots of paging).  So there's no need to have
> 1MB free.

Actually, I meant REAL MODE requires FIRST megabyte not SECOND or THIRD.
Indeed, program may require quite a little RAM lees than 1MB.

bye.
Alexei A. Frounze
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E-mail:   alexfru [AT] chat [DOT] ru
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