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Mail Archives: djgpp/2013/11/28/01:45:16

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From: "Rod Pemberton" <dont_use_email AT xnohavenotit DOT cnm>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Using DJGPP for C++ DOS development today?
Date: Thu, 28 Nov 2013 01:26:50 -0500
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On Wed, 27 Nov 2013 19:12:43 -0500, John Davidson <codewhakker AT gmail DOT com>  
wrote:
> On Tue, 26 Nov 2013 23:46:57 -0500, Andris Pavenis  
> <andris DOT pavenis AT iki DOT fi> wrote:

>> C++ library uses instructions only available since 80486.
>
> What I really want to know is what is the latest version of
> DJGPP or GCC that I can use with an 80386, [...]

An alternate solution might be instruction emulation.

There were DOS TSR's that emulated missing instructions
using the processor's invalid instruction interrupt.

The TSRs I was able to locate are listed below.  I've
never used these, so I'm not familiar with them.  I think
there was one for 486 too, but I'm not able to locate it.

It's possible Rugxulo or someone else might be familiar
with some emulators for 486.  You might try a post to
comp.os.msdos.programmer and comp.os.msdos.misc, etc,
in case someone remembers.

It's also possible that you could find enough support
in those listed below, although unlikely...

Also, these are from old and obscure DOS websites like
Garbo, Simtel, Hobbes, Funet.fi, so do a virus scan
before using.


http://www.sac.sk/files.php?d=16&p=25
em3134b1.zip   386 for 286
em386133.zip   386 for 286

http://www.sac.sk/files.php?d=16&l=Q
q87_413.zip    8087 ?

http://ftp.sunet.se/pub/simtelnet/msdos/emulate
387.zip        80387
em3134b1.zip   386 for 286
em87v1_3.zip   8087 for AT or 386
emul87.zip     8087 for 286/386

http://archives.scovetta.com/pub/fehq/DOSUtils/00_index.htm
emxxx87.zip    8087 ?
mmx.zip        MMX instructions
mmx386.zip     MMX for 386
q387_366.zip   387


Rod Pemberton

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