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authorUlrich Drepper <drepper@redhat.com>1997-04-05 01:26:47 +0000
committerUlrich Drepper <drepper@redhat.com>1997-04-05 01:26:47 +0000
commit26dee9c49cbbec8826db4c29e99fb50d9392a047 (patch)
tree98cce94e2e72bcb491b108c3c8f82192070b4b8f /sysdeps/libm-i387/s_frexp.S
parentfe7bdd630fab35270a88b0731cd0fc10de062046 (diff)
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1997-04-05 03:11  Ulrich Drepper  <drepper@cygnus.com>

	* inet/arpa/inet.h: Rewrite.  Don't use the ugly BSD way to write
	headers but instead add comments and parameter names.
	Don't use BSD specific types in prototypes.

	* manual/nss.texi: Correct a few typos and errors.

	* sysdeps/libm-ieee754/s_cbrt.c: Complete rewrite based on better
	algorithm.
	* sysdeps/libm-ieee754/s_cbrtf.c: Likewise.
	* sysdeps/libm-ieee754/s_cbrtl.c: Likewise.

	* sysdeps/libm-i387/s_cbrt.S: New file.  Optimized assembler version
	with new algorithm.
	* sysdeps/libm-i387/s_cbrtf.S: New file.
	* sysdeps/libm-i387/s_cbrtl.S: New file.

	* sysdeps/libm-i387/s_frexp.S: Optimize even more.
	* sysdeps/libm-i387/s_frexpf.S: Likewise.
	* sysdeps/libm-i387/s_frexpl.S: Likewise.

1997-04-04 18:55  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/Makefile: Remove CFLAGS-*, add publickey to databases.

	* nis/nis_call.c: Add MASTER_ONLY and HARD_LOOKUP flags, compile
	DES part only with secure RPC add-on.

	* nis/nis_names.c (nis_modify): Fix rpc function number.

	* nis/nis_server.c: Fix typos.

	* nis/nss_compat/compat-grp.c: Add NIS+ support.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.

	* nis/nss_nis/nis-grp.c: Only a return value > 0 from parse_line
	signals success.

	* nis/nss_nis/nis-publickey.c: Changes for compiling with/without
	secure RPC.
	* nis/nss_nisplus/nisplus-publickey.c: Likewise.
	* nis/ypclnt.c: Likewise.
	* nis/nis_intern.h: Likewise.

	* nis/nss_nisplus/nisplus-alias.c: Correct parser return code.
	* nis/nss_nisplus/nisplus-ethers.c: Likewise.
	* nis/nss_nisplus/nisplus-hosts.c: Likewise.
	* nis/nss_nisplus/nisplus-network.c: Likewise.
	* nis/nss_nisplus/nisplus-proto.c: Likewise.
	* nis/nss_nisplus/nisplus-pwd.c: Likewise.
	* nis/nss_nisplus/nisplus-rpc.c: Likewise.
	* nis/nss_nisplus/nisplus-service.c: Likewise.
	* nis/nss_nisplus/nisplus-spwd.c: Likewise.

	* nis/nss_nisplus/nisplus-grp.c: Rewrite parser for fixing errors
	and speedup.
	* nis/nss_nisplus/nisplus-netgrp.c: Likewise.

1997-04-04 17:03  Ulrich Drepper  <drepper@cygnus.com>

	* math/libm-test.c (cbrt_test): Add tests for +-inf and NaN
	arguments.

1997-04-03 19:24  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/unix/sysv/linux/sigset.h (__sigisemptyset): Fix a
	typo.

1997-04-03 16:10  Andreas Jaeger  <aj@arthur.pfalz.de>

	* sysdeps/libm-ieee754/s_nanf.c:
	* sysdeps/libm-ieee754/s_nan.c:
	* sysdeps/libm-ieee754/s_nanl.c: Include <stdio.h> for
	declaration of sprintf.

1997-04-03 13:37  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/s_cexp.c: Fix type: string_alias ->
	strong_alias.
	Reported by sun <asun@zoology.washington.edu>.

	* rpc/auth.h: Removed.
	* rpc/auth_des.h: Removed.
	* sunrpc/rpc/auth.h: Moved to ...
	* sysdeps/generic/rpc/auth.h: ...here.
	* sunrpc/rpc/auth_des.h: Moved to ...
	* sysdeps/generic/rpc/auth_des.h: ...here.

1997-04-03 04:28  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-i387/s_frexp.S: New file.  ix87 optimized version.
	* sysdeps/libm-i387/s_frexpf.S: New file.
	* sysdeps/libm-i387/s_frexpl.S: New file.

1997-04-01 10:11  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=inet]
	(sysdep_headers): Remove netinet/icmp.h.

	Describe `inf', `infinity', `nan', `nan(...)' inputs for strtod
	* sysdeps/i386/memcmp.S: Likewise.
	* time/antarctica: Likewise.
	* time/australasia: Likewise.
Diffstat (limited to 'sysdeps/libm-i387/s_frexp.S')
-rw-r--r--sysdeps/libm-i387/s_frexp.S82
1 files changed, 82 insertions, 0 deletions
diff --git a/sysdeps/libm-i387/s_frexp.S b/sysdeps/libm-i387/s_frexp.S
new file mode 100644
index 0000000000..6a05f26720
--- /dev/null
+++ b/sysdeps/libm-i387/s_frexp.S
@@ -0,0 +1,82 @@
+/* ix87 specific frexp implementation for double.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+	.section .rodata
+#else
+	.text
+#endif
+
+	.align ALIGNARG(4)
+	ASM_TYPE_DIRECTIVE(two54,@object)
+two54:	.byte 0, 0, 0, 0, 0, 0, 0x50, 0x43
+	ASM_SIZE_DIRECTIVE(two54)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%edx)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__frexp)
+	movl	4(%esp), %ecx
+	movl	8(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7ff00000, %eax
+	jae	1f
+
+	cmpl	$0x00100000, %eax
+	jae	2f
+
+	fldl	4(%esp)
+#ifdef	PIC
+	call	3f
+3:	popl	%edx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-3b], %edx
+#endif
+	fmull	MO(two54)
+	movl	$-54, %ecx
+	fstpl	4(%esp)
+	movl	8(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$20, %eax
+	andl	$0x800fffff, %edx
+	subl	$1022, %eax
+	orl	$0x3fe00000, %edx
+	addl	%eax, %ecx
+	movl	%edx, 8(%esp)
+
+	/* Store %ecx in the variable pointed to by the second argument,
+	   get the factor from the stack and return.  */
+1:	movl	12(%esp), %eax
+	fldl	4(%esp)
+	movl	%ecx, (%eax)
+	ret
+END(__frexp)
+weak_alias (__frexp, frexp)