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Date: Wed, 2 Sep 2009 11:30:24 -0400
Message-Id: <200909021530.n82FUOug032086@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: 
	<77a18d6a-f649-47e2-a8da-7b6ba918d055 AT f18g2000prf DOT googlegroups DOT com>
	(message from dirw on Wed, 2 Sep 2009 08:07:09 -0700 (PDT))
Subject: Re: How to access 0xFF800000 data ?
References: <850b568b-640c-435e-b6ca-deb8953ef1d5 AT y10g2000prf DOT googlegroups DOT com> 
	<200909021448 DOT n82EmwgV030959 AT envy DOT delorie DOT com> <77a18d6a-f649-47e2-a8da-7b6ba918d055 AT f18g2000prf DOT googlegroups DOT com>
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(1) using <sys/farptr.h> you need these DPMI calls:

http://www.delorie.com/djgpp/doc/dpmi/api/310000.html
http://www.delorie.com/djgpp/doc/dpmi/api/310007.html
http://www.delorie.com/djgpp/doc/dpmi/api/310008.html
http://www.delorie.com/djgpp/doc/dpmi/api/310009.html

http://www.delorie.com/djgpp/doc/libc/libc_304.html

(2) using <sys/nearptr.h> you just need to add
    __djgpp_conventional_base to your 32-bit linear address.

http://www.delorie.com/djgpp/doc/libc/libc_141.html