New 387 Math Library - beta testers wanted

[Glenn Geers]

Most (all?) of the generic 386 Unix systems (including Xenix) provide
a math library that does not use many of the 387's inbuilt transcendental
functions either at all or only in a restricted way. This is because they must
be able to support a minimal system consisting of a 287 or an (incomplete)
emulator. For example, sin(x) is not computed using the fsin instruction but
rather using a polynomial expansion.

I have completely rewritten the math library to use the 387 inbuilts and 
extended it to provide a full IEEE conforming implementation. Many of the
routines are in assembler but the more esoteric functions are borrowed from
the Berkley distribution (in C - Bessel functions, hyperbolic functions and the
gamma function. The hyperbolics will be written in assembler soon.) and are 
freely distributable. The measured speed up is between 5 and 10 times depending
on the function. I have used the Berkley approach, matherr is not used and
in most cases range checks are left to the user. I wanted speed not niceties!

The system requirements are a 386(SX)/387(SX) or a full emulator (ESIX provides
one; do other vendors?). You *must* be using gcc/gas. The second requirement
will eventually go away - anyone know where I can get an AT&T 386 assembler
reference? Does one exist?

If you are interested in being a beta tester please send me email and I will
tell you how to get the source if you are on Internet or mail it out to you
if not.

						Share and Enjoy,
								Glenn

glenn at qed.physics.su.oz.au

--
Glenn Geers                       | "So when it's over, we're back to people.
Department of Theoretical Physics |  Just to prove that human touch can have
The University of Sydney          |  no equal."
Sydney NSW 2006 Australia         |  - Basia Trzetrzelewska, 'Prime Time TV'