Subject: Re: NetBSD/vax 1.6 pkgsrc perl build?
To: John Klos <>
From: Bertram Barth <>
List: port-vax
Date: 11/03/2002 10:56:15
John Klos writes:
> Just for curiosity, I'd love to know more about VAX floating point... is
> it more accurate / less accurate? What does a fp register look like?

Besides the things Brian Chase already stated, there are differences
between VAX and IEEE for values with zero exponent and non-zero sign/
fraction. IIRC IEEE uses these to signal special conditions like NaN.
If the sign-bit is not set, VAX treats these values as exact zero, all
values with zero exponent and sign-bit set are invalid and an yield an
reserved-operand fault.