Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!sunybcs!daveb
From: daveb@sunybcs.uucp (Dave Borkowski)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Protected mode
Keywords: 386 Protected Mode
Message-ID: <7275@cs.Buffalo.EDU>
Date: 20 Jun 89 19:31:16 GMT
References: <158322@neabbs.UUCP> <111700104@uxa.cso.uiuc.edu>
Sender: nobody@cs.Buffalo.EDU
Reply-To: daveb@sunybcs.UUCP (Dave Borkowski)
Organization: SUNY/Buffalo Computer Science
Lines: 13

I would like to get some thoughts on getting at memory above 1M.  
I need to be able to shuffle around blocks of memory while controlling a
DT 2861 frame grabber. The problem is that frame store memory (4M) has to
be dealt with in protected mode. The only way to get maximum speed out of
this thing is to roll your own. They do provide support (IRIS) libraries
but at best, three frames/sec. I would like to create composite frames built
from sub frames in real time. I believe this is possible if done in protected
mode.       
Up till now all that I have seen available is a book by Brumm & Brumm. I leaves
alot of unanswered questions.                                         
Has anyone any experience to share ???     
                                                  Thanks
                                                   Daveb