X-Authentication-Warning:	delorie.com: mailnull set sender to djgpp-bounces using -f
From:	GammaBurst <buzz AT off DOT spambots>
Newsgroups:	comp.os.msdos.djgpp
Subject:	How to access two 512MB PCI cards?
Organization:	-
Message-ID:	<s1lh4uc493532cik4buor7829b6gchg8m1@4ax.com>
X-Newsreader:	Forte Agent 1.8/32.548
MIME-Version:	1.0
Lines:	8
NNTP-Posting-Date:	Fri, 18 Jan 2002 20:29:16 CST
X-Trace:	sv3-fNCm9Fcjd/ScyaT2SC+zTWxaaJwqs85TmMVuJl3kXO8DmSRa9SjMXletfw+9RsOOrdUZaOLF1bQS+v8!lE1a9Wiaq9+jvE3EVlgBslgCFISZiZp6yYEaNk64ZPG3zsqJVhrvOpq7kWTCpJeiYpvN
X-Complaints-To:	abuse AT GigaNews DOT Com
X-DMCA-Notifications:	http://www.giganews.com/info/dmca.html
X-Abuse-Info:	Please be sure to forward a copy of ALL headers
X-Abuse-Info:	Otherwise we will be unable to process your complaint properly
Date:	Sat, 19 Jan 2002 02:29:16 GMT
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Hi, I'm trying to peak/poke my two custom PCI cards that each occupy
512MB of address space, located at hardware addresses 0xA0000000 and
0xC0000000. Is this possible using DOS, djgpp, and cwsdpmi5? I've
tried various nearptr and farptr methods like in the FAQ, but I keep
getting SIGSEGV errors or "could not allocate page table memory". I
can't find any examples of accessing huge areas, so I'm just flailing
about with dpmi function calls that I don't fully understand. What's
the right approach? What sequence of function calls? Thanks.

- Raw text -