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Mail Archives: djgpp/1996/08/02/11:00:08

From: "Tom Demmer" <DEMMER AT brain1 DOT lstm DOT ruhr-uni-bochum DOT de>
Organization: Lehrstuhl Stroemungsmechanik, RUB
To: sandmann AT clio DOT rice DOT edu (Charles Sandmann),
djgpp AT delorie DOT com (DJGPP Mailing List)
Date: Fri, 2 Aug 1996 15:58:22 GMT-1
Subject: Re: NextGen 586, Floating point woes
Reply-to: Demmer AT LStM DOT Ruhr-Uni-Bochum DOT De
Message-ID: <43E98E506FA@brain1.lstm.ruhr-uni-bochum.de>

[...]
> > The function is called by npxsetup.c, same directory. It checks
> > the environment variable 387 to see if you set it to "N", but
> > unfortunately not, if you set it to "Y". Charles, is that not something
> > to change?
> 
> Setting it to Y causes hard crashes (taking out Windows, for example) on
> boxes I tried without FPUs for a couple of reasons.  

That's what anybody would expect. Exactly the same behaviour as TC in 
those old 286/287 days. So what?

> We need to find out
> why code directly out of the intel manual doesn't work on this environment,
> if we need to set something else first, for example.

Because the guys developing NextGen didn't read it?

> 
> In any case, none of these things get fixed unless someone wants to spend
> the time to work through them - I'm glad to help but it works on everything
> I have access to.
> 
Odds that a customer will buy a NextGen 586 _and_ I can keep him 
quite until I found out how the CPU behaves are pretty low. 

Tom

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    Who needs BRAINS when you have software?
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