From: "John M. Aldrich" <fighteer AT NO DOT SPAM DOT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: DJGPP OS Compatability WAS:detecting dpmi
Date: Mon, 21 Apr 1997 07:57:08 +0000
Organization: Two pounds of chaos and a pinch of salt
Lines: 27
Message-ID: <335B1DD4.1B59@NO.SPAM.cs.com>
References: <5je6kq$ff9$1 AT thor DOT atcon DOT com> <3359D789 DOT 3623 AT NO DOT SPAM DOT cs DOT com> <5jfilc$p5h AT news DOT cableinet DOT net>
Reply-To: fighteer AT cs DOT com
NNTP-Posting-Host: ppp108.cs.com
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

Jason Barstow wrote:
> 
> I wondered if anyone out there had any personal experiences of difficulties
> running their app in any of these OSs.
> I'm currently working on a game (like many people I think). This does all the
> usual stuff - hooks keyboard interrupt; uses VESA1.2/2.0; does sound via
> Soundblaster; uses NEARPTRS (optional).
> 
> I think I can claim MS-DOS(obviously), Win3.1 and Win95 compatability, but
> given all the lowlevel stuff I'm not sure about OS/2Warp, WinNT or Linux.

You're right here.  Compatibility problems show up when running
low-level, hardware-oriented routines on these operating systems,
because they like to hide the real hardware behind shadow registers and
generally make things difficult for programmers.

The FAQ has a fair bit of information on NT programming; the only thing
you will really have problems with is SVGA graphics.  I have heard that
Linux is also somewhat wierd in this respect.  I don't know anything
about OS/2, one way or the other.

-- 
---------------------------------------------------------------------
| John M. Aldrich, aka Fighteer I |     mailto:fighteer AT cs DOT com      |
| Proud owner of what might one   |   http://www.cs.com/fighteer    |
| day be a spectacular MUD...     | Plan: To make Bill Gates suffer |
---------------------------------------------------------------------