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Mail Archives: djgpp/1998/11/12/21:05:31

From: "Charles Sandmann" <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Physical memory location
Date: Thu, 12 Nov 1998 19:43:04
Organization: Aspen Technology, Inc.
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Message-ID: <364b3a48.sandmann@clio.rice.edu>
References: <364AFCB0 DOT 59F6D0EB AT imec DOT be>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

> No, not exactly. When running CWSDPMI, the linear (or logical) address
> is the same as the physical. That's because only one page is used
> (paging disabled). 

This is not true.  CWSDPMI always enables paging, and the linear and
physical addresses are almost never equal, except for the bottom 640K.
As a matter of fact, even the ring 0 version which doesn't support
virtual memory uses the page tables.

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