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