cvs.gedasymbols.org/archives/browse.cgi   search  
Mail Archives: djgpp/1998/07/01/06:07:48

Date: Wed, 1 Jul 1998 09:11:32 +0200 (MET DST)
From: Federico Spinazzi <federico AT SysPr03 DOT disat DOT unimi DOT it>
To: Vic <tudor AT cam DOT org>
cc: djgpp AT delorie DOT com
Subject: Re: NT compat (also Linux)
In-Reply-To: <35994204.56A9@cam.org>
Message-ID: <Pine.LNX.3.93.980701083512.23695D-100000@SysPr03.disat.unimi.it>
MIME-Version: 1.0

On Tue, 30 Jun 1998, Vic wrote:

> I'm sorry if this question's in the FAQ. I know it's been asked a
> hundred times before. I never bothered before :)
> Now I want to get a new PC, a PII, and win 98 won't cut it anymore. So
> I'll install NT and Linux.
> Can I still run DJGPP and the progs created by it under NT?
> What about Linux? how compatible is DOSEMU?
>

I'm using quite often NT and DJGPP developement environement at a time.
I' would like to point out a little of my experience with it:

0 - I basically work with C with djdev 2.01, FAT drive, gcc 2.7.2.1, NT
Workstation 4.0, service pack 3;

1 - symify often doesn't work: i.e. the stack traceback always being
converted to nothing;

2 - memory allocation bugs are virtually impossible to catch (may be due
to the different behaviour of the DPMI service provided by NT ? well,
different from CWSDPMI )

3 - SIGFPE (C) signals cannot be catched (well, I'm not able to catch
them) by the program but are catched by the OS that calls Dr. Watson ...,
well, I guess that is the sequence of events; when I say 'catch' I refer
to the installation of a signal handler (I'm famous for bad code sent on
this mailing list (there is a reason for that, other than my great
distraction) so I don't try to explain that with an example) to handle it;

4 - often make, gcc, less, and so on crash (spelled right ?) with a
SIGSEV signal; I've never tried to symify the traceback due to 1;

5 - profiling is virtually impossible (Eli's FAQs tell there is a patch
for fixing it, but I've never searched it);

6 - Allegro works (or: NT works with Allegro): I've been able to see the
demo and the examples but, as I don't have a VESA , a VESA what ? video,
chipset, driver ? I don't know what VESA really should be...I'M SURE I
HAVEN'T IT ; NT crashes (WOW !) if you try to switch from an allegro
example or demo to, say, a WonderfulWord; here the crash is silent: you
simply see nothing on the screen;

7 - RHIDE works fine using -M switch on the command line; somethimes it
exit after stepping into a program and reaching the end ; sometimes rhgdb
work debugging while rhide not (rhgdb -M too !)

8 - you often have said that from a windows box DOS programs cannot
allocate more than 64Mb, right ?. I have seen djgpp programs using more
than that memory (RAM + disk space): up to 130Mb, for example; go32-v2
always report 0Kb of swap space; how , for hell, go32-v2 sizes the memory
avaiable ? (this last question doesn't match the main discussion at all).

9 - will follow a link to nt-lfn.com for long name support; I hope to
find it;

10 - bye bye to you all.  Thank you for you patience, work, suggestions,
spirit and so on.

federico

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019