PATCH: HUGE_VAL should be Infinity

[John David Anglin]

> > Nyet.  Recent HP chips (all PA2.0 variants) have fneg which provides an
> > ieee compliant negation.
> 
> Wrong.  I tried fneg on a C200 and again negation of +0. yielded +0.  The
> behaviour was identical to that of the 735.  Thus, I don't believe that
> all the new PA2.0 chips provide an ieee compliant negation.  HP is usually
> pretty good about this kind of thing which was why I wondered if there
> was some debate about the standard.

I retested this and it appears that I made a mistake in my original testing.
The fneg instruction on PA2.0 gear does negate +0. correctly.  Thus, there
is only a problem with PA1.0 and PA1.1 hardware which uses fsub.  The HP
compiler doesn't have the problem since it multiplies by -1. instead.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)