From:	"Chris Fought" <cfought AT systran DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Memory Mapping and Libcurses support in DJGPP? (newbie question)
Lines:	23
X-Priority:	3
X-MSMail-Priority:	Normal
X-Newsreader:	Microsoft Outlook Express 5.00.2314.1300
X-MimeOLE:	Produced By Microsoft MimeOLE V5.00.2314.1300
Message-ID:	<7ua34.761$He.5295@newsfeed.slurp.net>
Date:	Tue, 7 Dec 1999 11:27:55 -0500
NNTP-Posting-Host:	198.30.206.47
X-Trace:	newsfeed.slurp.net 944583683 198.30.206.47 (Tue, 07 Dec 1999 10:21:23 CDT)
NNTP-Posting-Date:	Tue, 07 Dec 1999 10:21:23 CDT
To:	djgpp AT Delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Hi All;
    I am a software engineer at a company that produces high performance
shared memory devices and I am considering porting some of our existing DOS
software to use DJGPP, but I have a few key features that I must have in
order to do so. I really have to be able to directly map memory from our
shared memory cards directly into host memory so that it appears as system
memory. I have looked through the FAQ's on the DJGPP WWW site and the info
that came in the DJGPP files, but I can't find any information on how to map
memory from a hardware device into the host's memory (I did see info on
malloc, creating buffers etc.). Once we have this step completed our
software simply creates a pointer to the location in the host's memory where
our card's 'memory' exists. Will DJGPP support memory mapping of this type,
is there some kind of UNIX like mmap() command that I can use? Also our
software where possible, always needs libcurses support for some diagnostic
programs that we include with our software, does DJGPP have any support for
this?  If anyone has any information related to this, I would greatly
appreciate any help you can provide, or if you can just point me to an
online doc or FAQ that contains the info, that would be sufficient. Thanks.

Chris Fought

- Raw text -