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From: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: [Q] Absolute addressing
Date: Tue, 05 Oct 2004 23:27:33 CDT
Organization: Rice University, Houston, TX
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> not the real physical location 0x400 I want.
> 
> 1, How can I program about the device's absolute address in DJGPP?
> 2. Can DJGPP compile 32-bit program so I can address the whole system
> memory?

look in the libc documentation for functions such as dosmemget() and
the functions in <sys/farptr.h>

If you want to access memory locations outside first 1MB area you will
need to map them into your address space using DPMI calls