Date: Wed, 9 Feb 94 15:44:42 -0500
From: DJ Delorie <dj AT ctron DOT com>
To: n DOT wooder AT ic DOT ac DOT uk
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: Help with gcc and EISA cards

> I am using gcc on a EISA bus machine to control a Data Translationdt3955
> frame grabber.
> The data is memory mapped at 0x8000000 on the EISA bus and I can
> find no way of accessing this memory with gcc. Is there a method I can
> use??

The only way currently is to (1) ensure you're in DPMI mode (see
<go32.h>) and (2) use DPMI-specific requests to allocate a selector
for that range.  You can then use movedata() to access it.