X-Authentication-Warning:	delorie.com: mailnull set sender to djgpp-workers-bounces using -f
From:	sandmann AT clio DOT rice DOT edu (Charles Sandmann)
Message-Id:	<10202090519.AA17322@clio.rice.edu>
Subject:	Re: cwsdpmi 4mb page bit [was Re: [user8201 AT usisp DOT com: ]
To:	djgpp-workers AT delorie DOT com
Date:	Fri, 8 Feb 2002 23:19:16 -0600 (CST)
Cc:	user8201 AT usisp DOT com
In-Reply-To:	<10202081709.AA24038@clio.rice.edu> from "Charles Sandmann" at Feb 08, 2002 11:09:10 AM
X-Mailer:	ELM [version 2.5 PL2]
Mime-Version:	1.0
Reply-To:	djgpp-workers AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	djgpp-workers AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

> > In the mean time I'm going to make the fix I suggested above to the CWSDPMI 
> > source code, see if I can manage to assemble it somehow (I _might_ have 
> > TASM somewhere.. but it will be version 3.2 or whatever came with some old 
> > Borland product for DOS). (I'm also going to make a change to my local copy 
> > of the BOCHS source code. I'd like it to stop spewing about reads from cr4 
> > like it also does now).

I've put a modified version of the CWSDPMI binary on
  http://clio.rice.edu/djgpp/psefix.zip  or
  ftp://clio.rice.edu/djgpp/psefix.zip

That code originated from a *VERY* old source tree - it predates my first 
Pentium CPU - it was some test code written specifically for id software
during Quake development.  They had asked about 4Mb pages to squeeze a
few percent more performance out of the game.  At that point Intel didn't
want to document it - fearing AMD would copy it.  By the way, that 
predates the release of V2.0 - and the first release of CWSDPMI ...

Kind of scary, huh?  Code lying around on my disk (transfered to two
new computers) for about 6 years before going into a release - then with
a bug :-(

Thanks to Willow for finding and reporting this.

- Raw text -