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Mail Archives: djgpp/1997/04/30/21:45:41

From: "John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Extra Memory
Date: Wed, 30 Apr 1997 19:19:42 +0000
Organization: Two pounds of chaos and a pinch of salt
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Message-ID: <33679B4E.76F2@cs.com>
References: <33669DFE DOT 78AB AT worldnet DOT att DOT net> <5k7892$j15 AT news DOT ox DOT ac DOT uk>
Reply-To: fighteer AT cs DOT com
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

George Foot wrote:
> 
> application. In DOS, in the absence of a different DPMI server your
> programs will use CWSDPMI (provided you distribute it with your packages)
> which lets you use up to 128Mb physical (conventional+EMS+XMS+extended,
> minus any disk caches, RAM-drives, etc) and up to 128Mb virtual (on the

Actually, cwsdpmi does not use conventional memory except to load itself
and its internal data structures, unless there is less than a certain
predefined amount of EMS/XMS available.  The main reason for this is
that conventional memory is a major PITA to swap to disk.  There may be
others; Charles would be the best one to ask.  But in general, DPMI
hosts do not let your program touch the low 1 MB of memory.

-- 
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