Date: Thu, 3 Apr 2003 02:36:56 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: Alexander Leidinger <Alexander@Leidinger.net> Subject: Re: cvs commit: src/sys/ia64/include float.h Message-ID: <20030403022202.M27329@gamplex.bde.org> In-Reply-To: <20030402161232.GA85205@troutmask.apl.washington.edu> References: <200303272038.h2RKcM7L096560@repoman.freebsd.org> <20030330175646.281097ad.Alexander@Leidinger.net> <20030331082023.GE11307@cirb503493.alcatel.com.au> <20030401172440.701aaafd.Alexander@Leidinger.net> <20030402154250.X25489@gamplex.bde.org> <20030402161232.GA85205@troutmask.apl.washington.edu>
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On Wed, 2 Apr 2003, Steve Kargl wrote: > On Wed, Apr 02, 2003 at 04:21:30PM +1000, Bruce Evans wrote: > > ucbtest is good but is too old to cover much of C99. I haven't found > > anything anywhere near as good and up to date. > > Have you looked at John Hauser's SoftFloat package? > > http://www.jhauser.us/arithmetic/SoftFloat.html. > > The blurb at the top of the web page states: "SoftFloat fully implements > the four most common floating-point formats: single precision (32 bits), > double precision (64 bits), extended double precision (80 bits), and > quadruple precision (128 bits). All required rounding modes, exception > flags, and special values are supported. > > There is a test program available to compare the machines > FP against SoftFloat. Only a little. It seemed to do little more than what the blurb says: implement soft-float and test itself. This is not very interesting for us on at least i386's, since we already have hard-float with known properties, and Intel and a few hundred million of Intel's customers tested it. The missing test coverage is mainly of the less commonly used math functions (Gamma, Bessel and lots of new C99 functions). Bruce
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