Path: utzoo!utgpu!water!watmath!clyde!bellcore!rutgers!mailrus!utah-gr!stride!bruce
From: bruce@Stride.COM (Bruce Robertson)
Newsgroups: comp.arch
Subject: Re: 88k trick for FP abs/neg
Message-ID: <829@stride.Stride.COM>
Date: 11 Jul 88 20:54:54 GMT
References: <10136@tekecs.TEK.COM> <2553@obiwan.mips.COM> <6160@aw.sei.cmu.edu>
Reply-To: bruce@stride.stride.com.UUCP (Bruce Robertson)
Organization: Stride Micro, Reno, NV
Lines: 12

In article <6160@aw.sei.cmu.edu> firth@bd.sei.cmu.edu.UUCP (Robert Firth) writes:
>
>Ho boy! The last time I saw a compiler XOR the sign bit of floating zero
>must have been about 1975.  Old bugs never die, they just migrate to new
>hosts.

With IEEE floating point, negating 0.0 to produce -0.0 is correct.
-- 

	Bruce Robertson
	MicroSage Computer Systems
	bruce@stride.com