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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. |
Lines: | 8 |
Message-ID: | <364b3a48.sandmann@clio.rice.edu> |
References: | <364AFCB0 DOT 59F6D0EB AT imec DOT be> |
NNTP-Posting-Host: | dmcap2.aco.aspentech.com |
X-NewsEditor: | ED-1.5.8 |
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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