From: "Ron Grunwald" <RGRUNWAL AT wasp DOT cs DOT cowan DOT edu DOT au>
Organization:  Edith Cowan University
To: softbrek AT POOL DOT Informatik DOT RWTH-Aachen DOT DE
Date:          Wed, 7 Dec 1994 10:10:30 GMT+800
Subject:       Re: Non-present 80387 when assembling
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu (djgpp)

Regarding the response on 80387 problem:

Thanks for correcting my initial response and clearing things up a 
bit.

Regards, Ron.


> Hello, all
> 
> I think I have to clarify this heavily:
> 
> > 
> > Richard Hine wrote:
> > 
> > > I am trying to use the gnu C compiler on a number of DOS PCs.  The
> > > compiler was built for me from by a colleague who tells me that it was
> > > djgpp version 1.11.
> > 
> and Ron Grunwald answered as follows:
> 
> > What I'm wondering here is that maybe GCC was built on a machine that 
> > had a math-coprocessor, either builtin or external. This may cause 
> > the newly built version of GCC to use FPU instructions, and hence 
> > cause your problems.
> > 
> 
> [rest deleted]
> 
> Sorry, Ron, but that answer is wrong, if I've lost all my knowledge
> on djgpp usage without a copro.
> 
> The compiler, and this *includes* the distributed version, *does* use
> floating-point instructions, if it isn't forced not to do so during
> the building process of the compiler itself (and forcing this is a
> real pain, as you will have to provide a math-emulator to build into
> cc1.) So, everyone who wants to compile anything with gcc (if not
> someone corrects me on this) *must* have some sort of '387 (extra
> chip, or inside his 486 or P5).
> 
> So, what do you do if you don't have such a piece of silicon, you ask?
> 
> EMULATE IT! That is: put the string "emu [...]/emu387" into your GO32
> environment variable, and make sure you have the 387 emulator, either
> DJ's version (sitting in djeoe112.zip), or wmemu112.zip.
> 
> For further information : RTFM (Read The djgpp.Faq, Man!)
> 
> Hans-Bernhard Broeker
> 
>

 

 ********************************************************************
 | Author.............. Ron Grunwald                                | 
 | Internet............ r DOT grunwald AT cowan DOT edu DOT au                     |
 | Phone............... (09)273 8027 or (09)273 8468                |
 |------------------------------------------------------------------|
 | Department.......... Computer Operations and Systems Management  |
 | Division/Faculty.... Information Technology                      | 
 | Institute........... Edith Cowan University, Churchlands         | 
 | Location............ Perth, Western Australia                    |
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 "I don't have any solution but I certainly admire the problem!"