Path: utzoo!utgpu!watserv1!watmath!att!linac!uwm.edu!wuarchive!usc!snorkelwacker.mit.edu!paperboy!hsdndev!husc6!encore!pinocchio.encore.com
From: jkenton@pinocchio.encore.com (Jeff Kenton)
Newsgroups: comp.sys.m88k
Subject: Re: floating point exceptions
Message-ID: <13364@encore.Encore.COM>
Date: 29 Nov 90 14:08:57 GMT
References: <13899@june.cs.washington.edu>
Sender: news@Encore.COM
Lines: 34

From article <13899@june.cs.washington.edu>, by robertb@cs.washington.edu (Robert Bedichek):
> In article <1990Nov29.084840.5410@Neon.Stanford.EDU> sean@Neon.Stanford.EDU (Sean Quinlan) writes:
>>I am trying to code a simple exception handler for the two floating
>>point exceptions.  The 88100 manual states that there are routines from
>>Motorola that do the default IEEE processing.  Has anyone used these?
> 
> Yes, they are in the Tektronix and Motorola kernels, as well as at
> least one Mach port that I know of.  My guess is that they are in
> everyone's 88k kernel.
> 

Many people have written their own.  The original sample FP exception code
from Motorola did not handle denorms properly; it may be more complete now.

For the simple stuff the sample code will give you the general idea although
it may not just "drop right in" your particular implementation.  It's surely
the first place to start -- give Motorola a call.













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