From: Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: __dpmi_paddr and DJGPP pointers
Organization: Pin Eight Software  http://pineight.8m.com/
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NNTP-Posting-Date: Wed, 17 May 2000 12:18:20 GMT
Distribution: world
Date: Wed, 17 May 2000 12:18:20 GMT
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

On Tue, 16 May 2000 20:40:03 GMT, "AndrewJ" <luminous-is AT home DOT com>
wrote:

>> I used 100% flat memory model and let me tell you - it SUCKS! It might
>> seem easier but it is awful since no protection exists. You write outside
>> where you are suppose to and well, the best thing is that your program
>> doesn't work (or does :). The worst, loosing entire DIR on a harddrive! :)
>
>I've used Watcom for years now, and it's flat model is unprotected (the
>equivalent to __djgpp_nearptr_enable() on all the time) and I've never, ever,
>ever trashed anything on the harddrive.  The worst I've gotten is various page
>faults and such.  Unless you were doing something wacked out to your harddrive
>at the time of the crash, I don't see how that could happen.

When using Turbo C++ and testing out custom optimized hugeptr code
(for a graphics library) on my old box, I got something like this from
DriveSpace:
  Error: Disk driver corrupted. Restarting system...
At least after the first release of TroubleSpace, M$ had the sense to
make it check itself for being overwritten.

Then I got DJGPP and Allegro, and it never happened again.  I got
various GPFs and page faults, but no warnings from DoubleGuard.

-- 
Damian Yerrick
"I refuse to listen to those who refuse to listen to reason."
See the whole sig: http://www.rose-hulman.edu/~yerricde/sig.html

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