From:	Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Debug before main?
Date:	Sun, 22 Sep 1996 11:36:32 CDT
Organization:	Rice University, Houston, Texas
Lines:	9
Message-ID:	<32456b10.sandmann@clio.rice.edu>
References:	<Pine DOT NEB DOT 3 DOT 95 DOT 960918125915 DOT 170H-100000 AT ananke DOT amu DOT edu DOT pl>
Reply-To:	sandmann AT clio DOT rice DOT edu
NNTP-Posting-Host:	clio.rice.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

> I recently subled upon a problem with GDB ... 386DX40 8MB computer, no FPU.
>   printf("%f + %f = %f", _float1, _float2, _float1 + _float2);
> signalled that 'Program has exited wit SIGFPE'. I thought I made a mistake
> it occured to me that it might be a problem with the FPU emulation. Is it?

None of the debuggers can properly handle FPU code without a real coprocessor.
Using WMEMU helps, but there are still problems emulating flags, etc in this
case, so it just doesn't work, no workaround.  Floating point code must be
debugged on a box with a real FPU.  It just wasn't worth fixing.

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