Date:	Wed, 21 Sep 1994 12:49:07 -0700 (PDT)
From:	Darwin Hawes <hawes AT physics DOT ubc DOT ca>
Subject:	DJGPP and linear addressing above main memory
To:	djgpp <djgpp AT sun DOT soe DOT clarkson DOT edu>

I'm trying to interface a video grabber card to a C program.  The card
maps its image directly into memory above the 12MB mark.  How can I read
this memory.  I tried using a pointer and adding 0x10000000 (can't
remember how many zeros), but it just generated a protected memory fault. 
Just copying blocks of memory into low memory would probably be
sufficient, but for speed reasons, I would prefer to just access the
memory directly. 

##########=========================-------------------------------------*
# Darwin Hawes  <hawes AT physics DOT ubc DOT ca>                                  |
I This is a typical net.posting.  Any resemblance to reality is         I 
| strictly coincidental.                                                #
*-------------------------------------=========================########## 

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