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Article #1521

Absolute memory on protected mode?

#1521
From: Martin Wink
Date: Tue, 05 Mar 1991 20:21
13 lines
869 bytes
Can anyone tell me how to access specific hardware memory from
protected mode Windows?

I know that it's done through special selectors or something, and
that they're exported by KERNEL.EXE.

eg an MDA card's memory can be accessed at B000:0000 through KERNEL
export #181: __B000H.  It dowsn't seem to be a function which returns
a pointer to memory, and simply referencing it as if it was a pointer
doesn't work either.

any clues???????
  martin wink...
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Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!elroy.jpl.nasa.gov!sdd.hp.com!hplabs!otter.hpl.hp.com!hpopd!martin
From: martin@hpopd.pwd.hp.com (Martin Wink)
Newsgroups: comp.windows.ms.programmer
Subject: Absolute memory on protected mode?
Message-ID: <36990003@hpopd.pwd.hp.com>
Date: 5 Mar 91 20:21:03 GMT
Organization: Hewlett-Packard CCG-PWD, UK.
Lines: 13