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Date: Fri, 28 Feb 1997 17:28:50 -0800 (PST)
From: Jonathan Mini <mini@micron.efn.org>
Reply-To: Jonathan Mini <j_mini@efn.org>
To: pgiffuni@fps.biblos.unal.edu.co
cc: Jonathan Lemon <jlemon@americantv.com>, emulation@freebsd.org
Subject: Re: Status report of vm86/dos emulation (DOS info)
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On Thu, 27 Feb 1997 pgiffuni@fps.biblos.unal.edu.co wrote:

> On Tue, 25 Feb 1997, Jonathan Lemon wrote:

On the same subject -- I orginially joined this list via request by 
somebody or other for help with DOS internals. I know a considerable 
amount, and have even more documentation about DOS. I own listings for 
IBM bioses for the XT and AT. (it comes in handy, belive it or not)
  I also have done some work with DOS extenders, including djgpp's GO32, 
DOS/4GW and Phar Lap's extender, to name a few. 

  IF you guys have any questions about DOS, or how DOS should act, let me 
know -- I unfortuntaly never have enough time to commit to working on 
code, but I cna answer almost anything. (or so i hope)

> > I'm definitely not a DOS hacker, so I really don't know what to look at.  I
> > just bought the van Gilluwe book (Undocumented PC) but it only seems to cover
> > some BIOS calls - is there a better book to look at?
> > --
> Sorry for replying so late, I was out of the net for two weeks!
> I found some interesting information on a WINE's developer page and other 
> sites:
> 
> * Ralph Brown's Page:
> "A comprehensive listing of interrupt calls, I/O ports, memory locations,
> and far-call interfaces for IBM PCs and compatible machines, both
> documented and undocumented. More than six megabytes of information in
> ASCII text files! "
> ftp://ftp.cs.cmu.edu/afs/cs.cmu.edu/user/ralf/pub/WWW/files.html
> 
> *Partial source code of a msdos clone. 
> The source code looks like it could save a lot of experimentation as to
> how dos works in bizarre situations. Note that the source code is
> copyrighted. Do not copy code from there -- use it only for determining
> how dos is supposed to work and recall that the author might have gotten
> it wrong occasionally.
> ftp://ftp.std.com/pub/rxdos/
> 
> *DOS extenders in the x2ftp archive (some interesting docs around, too)
> ftp://x2ftp.oulu.fi/pub/msdos/programming/pmode
> ftp://ftp.ibp.fr/pub/pc/x2ftp
> 
> And finally, interesting, but not useful, there is the page for a 32 bit 
> DOS from Russia (commercial product): http://www.pts.mipt.ru/
> 
> Pedro.
> 
> 
> > Jonathan
> > 
> 
> 

Jonathan Mini (j_mini@efn.org)

... bleakness ... desolation ... plastic forks ...