From:	Michael Feldman <mfeldman AT seas DOT gwu DOT edu>
Subject:	bug in coff2exe, or what?
To:	djgpp AT sun DOT soe DOT clarkson DOT edu (DJGPP List)
Date:	Tue, 22 Nov 1994 17:18:36 -0500 (EST)

Hi, all!

In compiling a program that uses floating point, on a 386 without a
coprocessor, I'm running into a weird situation. Naturally my go32
setup includes a pointer to the floating point emulator (emu387). If
I run the coff program directly under go32, i.e.

go32 myprog

all is well and the emulation is done. However, if I convert to .exe,
say

coff2exe myprog >myprog.exe

then execute as a normal DOS executable, the program crashes withthe
message "Fatal! Application attempted to to use not-present 80387!"

Why the difference in behavior? Is there a workaround?

Aside: you may well ask why I do not have a coprocessor. Well, I 
deal with a lot of different stuff, including compilers, and I
keep this machine free of the 387 just to test whether FP emulation is OK!
It's a dirty job, but someone's gotta do it. :-)

Thanks!

Mike Feldman
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Michael B. Feldman -  chair, SIGAda Education Working Group
Professor, Dept. of Electrical Engineering and Computer Science
The George Washington University -  Washington, DC 20052 USA
202-994-5919 (voice) - 202-994-0227 (fax) - mfeldman AT seas DOT gwu DOT edu (Internet)
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         Ada on the World-Wide Web: http://lglwww.epfl.ch/Ada/
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"Non illegitimi carborundum." (Don't let the bastards grind you down.)
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