1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-12 09:58:36 +00:00
Commit Graph

64 Commits

Author SHA1 Message Date
Bruce Evans
46d31a8b36 Removed bogus 'l' suffixes in FP register to register instructions. 2000-06-06 12:12:36 +00:00
David E. O'Brien
d6f56cfc4f MFS: Add a "magic" comment to help fixincludes realize it doesn't need to
modify this file when building GCC 2.96 [by hand or via the port].

Submitted by:	Zack Weinberg <zack@wolery.cumb.org>
2000-03-27 02:04:45 +00:00
Sheldon Hearn
4e86fcacf6 Remove more single-space hard sentence breaks. 2000-03-02 14:54:02 +00:00
Sheldon Hearn
c6ff3a1bf7 Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.
2000-03-02 09:14:21 +00:00
Alexey Zelkin
55b80e58ba style fix
PR:		docs/14737
Submitted by:	Norihiro Kumagai <kuma@nk.rim.or.jp>
1999-11-09 00:18:22 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Doug Rabson
6f93bf5f4b Disable building with alpha software completion options until we upgrade
compilers.
1998-12-24 13:17:58 +00:00
Doug Rabson
b7f762137a Implement fpsetmask() and other fp*() functions. Programs should use
#include <ieeefp.h>

to access these functions instead of the i386 specific

	#include <machine/floatingpoint.h>

Submitted by: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
1998-12-23 11:50:52 +00:00
John Birrell
43f3c8ed20 There is no alpha asm code like on i386, so all the functions that
the i386 builds with a __generic prefix need to have that stripped.
1998-05-10 23:46:01 +00:00
Paul Traina
5a36b24aa2 Back out last change 1998-04-23 04:44:08 +00:00
Paul Traina
d84b14105f Fix cabs and cabsf definitions to be prototypes. 1998-04-22 06:26:18 +00:00
John Birrell
05b706676b Add alpha support. m68k crept in too. Oops. 8-) 1998-02-20 07:44:29 +00:00
Jonathan Lemon
4f36d4ac99 Document the fpgetprec/fpsetprec functions in their man page.
Add cross-references to the elusive fpsetmask() function to various other
man pages.
Reviewed by:	bde
1998-02-04 22:30:20 +00:00
Daniel O'Callaghan
fb9d219add PR: 5489
Submitted by:	Steve G. Kargl <kargl@troutmask.apl.washington.edu>
Repair corrupted text.
1998-01-15 23:28:18 +00:00
John Birrell
11f8db59fb This is the only alpha math source that NetBSD has. 1998-01-10 22:17:24 +00:00
Bruce Evans
6a9280be8c Hide the declaration of `struct exception' from C++, since it conflicts
with the standard C++ `class exception'.  This makes matherr() difficult
to use in C++.  Small loss.
1997-08-31 22:12:19 +00:00
Bruce Evans
354fb38542 Fixed minor bugs related to the addition of gammaf.
The major bug, that gamma is documented as really being gamma, is
still unfixed.
1997-07-13 14:45:28 +00:00
Bruce Evans
9970814b3e Fixed wrong mnemonic `setnel' that gas happened to generate correct object
code for.

Obtained from:	a slightly different fix in NetBSD
1997-04-30 20:37:52 +00:00
Bruce Evans
3bc097d098 Added -D_ARCH_INDIRECT=i387_ to CFLAGS. _ARCH_INDIRECT will soon be used
to control generation of indirections in ENTRY().  Only msun needs it.

Use ${ARCH} consistently.
1997-04-15 14:05:28 +00:00
Bruce Evans
2d2781ff2c Fixed synopsis. Some float functions claimed to have the same name as
the double version.
1997-03-19 01:28:44 +00:00
Bruce Evans
9faa8dc6cc Use __ieee754_sqrt() instead of sqrt() internally. Similarly for the
float versions.  Using sqrt() was inefficient.

Obtained from:	NetBSD
1997-03-09 16:29:29 +00:00
Bruce Evans
6b04d9918b Include <machine/asm.h> instead of kernel-only <machine/asmacros.h>. 1997-03-09 14:01:11 +00:00
Bruce Evans
8c950c10ca Fixed wrong magic numbers in scaling. hypotf() was very broken for large
and small values:

    hypotf(2.3819765e+38, 2.0416943e+38) was NaN instead of 3.1372484e+38
    hypotf(-3.4028235e+38, 3.3886450e+38) was NaN instead of Inf
    hypotf(-2.8025969e-45, -2.8025969e-45) was 0 instead of 4.2038954e-45

Found by:	ucbtest
1997-03-05 11:54:00 +00:00
Peter Wemm
7e546392b5 Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
Bruce Evans
2e6184e901 Split up the Bessel function wrapper files so that most wrapper functions
are in their own file.
1997-02-20 13:35:15 +00:00
Bruce Evans
5ddc00e218 Removed misplaced duplicate of comment about implementation details. 1997-02-20 13:14:06 +00:00
Bruce Evans
487ddb8fa4 Compute (1 - x^2) as ((1 - x) * (1 + x)) instead of as (1 - x * x) to
avoid easily avoidable loss of precision when |x| is nearly 1.

Extended (64-bit) precision only moves the meaning of "nearly" here.

This probably could be done better by splitting up the range into
|x| <= 0.5 and |x| > 0.5 like the C version.  However, ucbtest
does't report any errors in this version.  Perhaps the C version
should be used anyway.  It's only 25% slower now on a P5, provided
the C version of sqrt() isn't used, and the C version could be
optimized better.

Errors checked by:	ucbtest
1997-02-20 12:37:49 +00:00
Bruce Evans
dab159e3d6 Select between the generic math functions and the i387-specific ones
at runtime.

etc/make.conf:
Nuked HAVE_FPU option.

lib/msun/Makefile:
Always build the i387 objects.  Copy the i387 source files at build
time so that the i387 objects have different names.  This is simpler
than renaming the files in the cvs repository or repeating half of
bsd.lib.mk to add explicit rules.

lib/msun/src/*.c:
Renamed all functions that have an i387-specific version by adding
`__generic_' to their names.

lib/msun/src/get_hw_float.c:
New file for getting machdep.hw_float from the kernel.

sys/i386/include/asmacros.h:
Abuse the ENTRY() macro to generate jump vectors and associated code.
This works much like PIC PLT dynamic initialization.  The PIC case is
messy.  The old i387 entry points are renamed.  Renaming is easier
here because the names are given by macro expansions.
1997-02-16 18:26:31 +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
c4ebcb3423 Put back .endif clobbered by the previous commit, breaking the
build.
1997-02-15 14:05:42 +00:00
Bruce Evans
ec7d3a3282 Disabled the i387 version if log1p(). It just evaluates log(1 + x).
This defeats the point of log1p().  ucbtest reports errors of +-5e+15
ULPs.  A correct version would use the i387 fyl2xp1 instruction for
small x and maybe scale to small x.  The C version does the scaling
reasonably efficiently, and fyl2px1 is slow (at least on P5s), so not
much is lost by always using the C version (only 25% for small x even
with the broken i387 version; 50% for large x).
1997-02-15 05:21:16 +00:00
Wolfram Schneider
75141cc987 Sort cross references. 1997-01-20 23:23:22 +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
Garrett Wollman
e76da59456 Delete -D_POSIX_MODE and -D_MULTI_LIBM from CFLAGS. They never had any effect
because _IEEE_LIBM always takes priority, so the definition just served
to confuse.

Reviewed by:	bde
1997-01-08 13:22:28 +00:00
Wolfram Schneider
13608f6661 comma typos 1996-12-23 23:09:55 +00:00
Bruce Evans
f4af388575 Removed references to nonexistent functions log2() and log2f(). 1996-12-18 17:47:03 +00:00
Bruce Evans
c5dd403925 Fixed fiddling with the control word. Use the stack space reserved for
that purpose instead of space below the stack.
1996-12-14 16:43:53 +00:00
Bruce Evans
aa9a769760 Clean up the FPU stack before returning. One stack slot was leaked on
every call.  The damage was sometimes limited by other routines using
and freeing stack slots that should have been empty to being with.
1996-12-14 16:24:42 +00:00
Peter Wemm
bc4c97465a consistancy fixup
Submitted by: "Philippe Charnier" <charnier@xp11.frmug.org>
1996-08-30 21:21:52 +00:00
Peter Wemm
345be915f7 cmp -s || install -c ==> install -C 1996-08-30 02:12:07 +00:00
Bruce Evans
2aa9f7ca2c Made rintf() actually work. It was completely broken (when s_rint.c
was compiled with -O) by the precision bug in the i386 version of
gcc (assignments and casts don't clip the precision).  E.g.,
rintf(12.3456789) was 12.125.

Avoid the same bug in rint().  It was only broken for the unusual
case when the i387 precision is 64 bits.  FreeBSD defaults to 53
bit precision to avoid problems like this, but the standard math
emulator always uses 64 bit precision.
1996-08-28 16:34:36 +00:00
Mike Pritchard
c119f6297f Fix up the NAME lines forthe ceil and floor man pages to be
less confusing.

Reviewed by:	bde
Partially obtained from: NetBSD-bugs
1996-08-21 21:23:47 +00:00
Jordan K. Hubbard
51295a4d3e General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>
1996-07-12 18:57:58 +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
Bruce Evans
40b83e34a7 Don't trash %ebp.
Obtained from: NetBSD
1996-02-25 20:29:46 +00:00
Mike Pritchard
4bd9ba3c2f Fixed some minor formatting problems to silence manck some more.
Corrected some bogus cross references to man pages that we don't/won't
have and either deleted them, or found a more appropriate man page
that we do have.  Various other minor changes to silence manck.

Manck is currently down to about 200 lines of errors, down from
the 500 - 600+ when I started all this.
1996-02-12 01:20:38 +00:00
Mike Pritchard
50ab12d9c0 Correct one small typo in previous commit. 1996-02-09 00:48:52 +00:00
Mike Pritchard
c211e812bb Added some missing MLINKS for section 3 man pages.
Also corrected a few minor formatting errors, file location and cross
references in some of the section 3 man pages.

This shuts up a lot of the output from "manck" for section 3.
1996-02-09 00:45:45 +00:00
Bruce Evans
6644bf3e9b Undo the the changes in the previous revision (MANSRC now works right again).
Use ${INSTALL} instead of install.
1995-10-22 19:16:01 +00:00
Bruce Evans
5308354b7e Fixed use of too many args for `.Em'.
Fixed description of domain of y*().
Fixed description of error domain.  (This description is still half
redundant and half wrong, as in many other math man pages.  fdlibm
doesn't support the VAX or Tahoe.)
Fixed capitalization of `Bessel'.
1995-10-22 18:16:39 +00:00