Xref: utzoo comp.lang.fortran:3823 comp.os.msdos.programmer:1068
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!mailrus!sharkey!bnlux0!gill
From: gill@bnlux0.bnl.gov (ronald gill)
Newsgroups: comp.lang.fortran,comp.os.msdos.programmer
Subject: Re: MS Fortran 5.00 FP underflows
Keywords: Microsoft,Fortran
Message-ID: <2150@bnlux0.bnl.gov>
Date: 21 Sep 90 18:47:13 GMT
References: <1990Sep20.215410.4844@csun.edu> <1990Sep21.082155.1743@usenet.ins.cwru.edu>
Organization: Brookhave National Lab, Upton, NY
Lines: 13

I tried to email, but it bounced back.  I had a similar FP problem
with a large program using MicroSoft FORTRAN 4.0.  If I added a line
or two the program would crash, even if the line was just i=0, or
something trivial.  I solved it by compiling with the HUGE attribute,
ie.: fl /AH /FPi87 ...  Apparantly, the program was just overflowing
some segment and external routines that were being called got lost.
I was calling some C routines that controlled a tape drive, some VDI
routines for graphics, plotters, etc.  It still has a problem that
when you do an EXIT or STOP, the system crashes!  I solved that by
using a PAUSE instead, and giving the user a message to Control-C to
exit the program: that seems to work.  Talk about a kludge...

--Rongill