Commit Graph

11 Commits

Author SHA1 Message Date
Bruce Evans
f964c6ecfb Fixed some comments added in rev.1.5.
The log message for 1.5 said that some small (one or two ulp) inaccuracies
were fixed, and a comment implied that the critical change is to switch
the rounding mode to to-nearest, with a switch of the precision to
extended at no extra cost.  Actually, the errors are very large (ucbtest
finds ones of several hundred ulps), and it is the switch of the
precision that is critical.

Another comment was wrong about NaNs being handled sloppily.
2005-10-30 12:21:02 +00:00
David Schultz
e1b61b5b93 Remove wrappers and other cruft intended to support SVID, mistakes in
C90, and other arcana.  Most of these features were never fully
supported or enabled by default.

Ok:	bde, stefanf
2005-02-04 14:08:32 +00:00
Bruce Evans
46d31a8b36 Removed bogus 'l' suffixes in FP register to register instructions. 2000-06-06 12:12:36 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Bruce Evans
6b04d9918b Include <machine/asm.h> instead of kernel-only <machine/asmacros.h>. 1997-03-09 14:01:11 +00:00
Peter Wemm
7e546392b5 Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
Bruce Evans
72d8d94d6f Fixed the i87 version of exp(). It returned NaN for args +-Inf. It had
some small (one or two ULP) inaccuracies.

Found by:	ucbtest
1997-02-16 17:38:11 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Bruce Evans
f05bebb3ad Clean up the FP stack before returning. The i387 exp() leaked an FP
register on its first call.  Subsequent calls reused the register so
the leak didn't accumulate.  Fixes PR 1275.
1996-06-01 18:00:07 +00:00
Jordan K. Hubbard
ec8cc6082c Do all the includes: <machine/asm.h> -> <machine/asmacros.h>
Reviewed by:
Submitted by:
1994-08-19 11:14:32 +00:00
Jordan K. Hubbard
3a8617a83f J.T. Conklin's latest version of the Sun math library.
-- Begin comments from J.T. Conklin:
The most significant improvement is the addition of "float" versions
of the math functions that take float arguments, return floats, and do
all operations in floating point.  This doesn't help (performance)
much on the i386, but they are still nice to have.

The float versions were orginally done by Cygnus' Ian Taylor when
fdlibm was integrated into the libm we support for embedded systems.
I gave Ian a copy of my libm as a starting point since I had already
fixed a lot of bugs & problems in Sun's original code.  After he was
done, I cleaned it up a bit and integrated the changes back into my
libm.
-- End comments

Reviewed by:	jkh
Submitted by:	jtc
1994-08-19 09:40:01 +00:00