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From: | "Charles Sandmann" <sandmann AT clio DOT rice DOT edu> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Problem accessing absolute physical address >1MB |
Date: | Tue, 28 Sep 1999 0:06:36 |
Organization: | Aspen Technology, Inc. |
Lines: | 8 |
Message-ID: | <37f0068c.sandmann@clio.rice.edu> |
References: | <19990914233406 DOT 21066 DOT qmail AT hotmail DOT com> |
NNTP-Posting-Host: | dcloan.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 |
> Long term I need to access physical memory that resides between 256MB > and 512MB. Does anyone have any suggestions on how to do this with DJGPP? > I know it is a bizarre requirement.:-) You can map this like a physical device with the DPMI calls. Hopefully you aren't planning to access all 256Mb of it, since this will spew page tables. Work item #42 never done- support 4Mb page table entries.
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