Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!emory!gatech!prism!msd!cchapman
From: cchapman@msd.gatech.edu (Chuck H. Chapman)
Newsgroups: comp.os.msdos.programmer
Subject: Physical addresses in protected mode?
Message-ID: <cchapman.677508274@msd>
Date: 21 Jun 91 12:44:34 GMT
Sender: news@prism.gatech.EDU
Lines: 17


I'm new to assembly language programming on the PC.  I need to do DMA transfers
to a device while running a protected mode program.  How do I figure out what
the physical address of the data I want to transfer is so I can pass this
address to the DMA controller so it can access the data?  It's easy in
real mode but how do you figure out physical addresses in protected mode?

Thanks in advance,
Chuck
--
Charles H. Chapman  (GTRI/MATD)             (404) 528-7588
Georgia Institute of Technology, Atlanta Georgia, 30332
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