Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!elroy.jpl.nasa.gov!decwrl!sgi!tarolli@westcoast.esd.sgi.com
From: tarolli@westcoast.esd.sgi.com (Gary Tarolli)
Newsgroups: comp.sys.sgi
Subject: Re: ieee floating point interrupt handling
Summary: ieee exceptions
Message-ID: <109803@sgi.sgi.com>
Date: 12 Jun 91 16:07:56 GMT
References: <1991Jun11.065238.1@rogue.llnl.gov>
Sender: guest@sgi.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 15

In article <1991Jun11.065238.1@rogue.llnl.gov>, spelce@rogue.llnl.gov writes:
> We just received several 4D35TG's and need to know how to get 
> ieee interrupt handling enabled from Fortran codes. We just 
> interested in enabling divide by zero, overflow, and "invlaid" 
> exceptions. We'd also like to set underflow to zero ...
> 
> Any info to help first time a first time SGI user will be appreciated.
> 
read the sigfpe man page, its full of info.  You also should read chapter
8 of Kane's MIPS R2000 book, the chapter on floating point exceptions.
It turns out that some exceptions like invalid, cannot be disabled.  However
you can do your own handler for them.

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	Gary Tarolli