Update.cvs/libc-ud-970404cvs/libc-970412cvs/libc-970411cvs/libc-970410cvs/libc-970409cvs/libc-970408cvs/libc-970407cvs/libc-970406cvs/libc-970405

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.

6 files changed, 783 insertions, 0 deletions

diff --git a/sysdeps/libm-i387/s_cbrt.S b/sysdeps/libm-i387/s_cbrt.S
new file mode 100644
index 0000000..4b9a2b1
--- /dev/null
+++ b/sysdeps/libm-i387/s_cbrt.S
@@ -0,0 +1,185 @@
+/* Compute cubic root of double value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   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(f1,@object)
+f1:	.double 0.354895765043919860
+	ASM_SIZE_DIRECTIVE(f1)
+        ASM_TYPE_DIRECTIVE(f2,@object)
+f2:	.double 1.50819193781584896
+	ASM_SIZE_DIRECTIVE(f2)
+        ASM_TYPE_DIRECTIVE(f3,@object)
+f3:	.double -2.11499494167371287
+	ASM_SIZE_DIRECTIVE(f3)
+        ASM_TYPE_DIRECTIVE(f4,@object)
+f4:	.double 2.44693122563534430
+	ASM_SIZE_DIRECTIVE(f4)
+        ASM_TYPE_DIRECTIVE(f5,@object)
+f5:	.double -1.83469277483613086
+	ASM_SIZE_DIRECTIVE(f5)
+        ASM_TYPE_DIRECTIVE(f6,@object)
+f6:	.double 0.784932344976639262
+	ASM_SIZE_DIRECTIVE(f6)
+        ASM_TYPE_DIRECTIVE(f7,@object)
+f7:	.double -0.145263899385486377
+	ASM_SIZE_DIRECTIVE(f7)
+
+#define CBRT2 1.2599210498948731648
+#define SQR_CBRT2 1.5874010519681994748
+
+	ASM_TYPE_DIRECTIVE(factor,@object)
+factor:	.double 1.0 / SQR_CBRT2
+	.double 1.0 / CBRT2
+	.double 1.0
+	.double CBRT2
+	.double SQR_CBRT2
+	ASM_SIZE_DIRECTIVE(factor)
+
+        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(%ebx)
+#define MOX(op,x,f) op##@GOTOFF(%ebx,x,f)
+#else
+#define MO(op) op
+#define MOX(op,x,f) op(,x,f)
+#endif
+
+	.text
+ENTRY(__cbrt)
+	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
+
+#ifdef PIC
+	pushl	%ebx
+	call	3f
+3:	popl	%ebx
+	addl    $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
+#endif
+
+	cmpl	$0x00100000, %eax
+	jae	2f
+
+#ifdef PIC
+	fldl	8(%esp)
+#else
+	fldl	4(%esp)
+#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
+#ifdef PIC
+	movl	%edx, 12(%esp)
+
+	fldl	8(%esp)			/* xm */
+#else
+	movl	%edx, 8(%esp)
+
+	fldl	4(%esp)			/* xm */
+#endif
+	fabs
+
+	/* The following code has two track:
+	    a) compute the normalized cbrt value
+	    b) compute xe/3 and xe%3
+	   The right track computes the value for b) and this is done
+	   in an optimized way by avoiding division.  */
+
+	fld	%st(0)			/* xm : xm */
+
+	fmull	MO(f7)			/* f7*xm : xm */
+			movl	$1431655766, %eax
+	faddl	MO(f6)			/* f6+f7*xm : xm */
+			imull	%ecx
+	fmul	%st(1)			/* (f6+f7*xm)*xm : xm */
+			movl	%ecx, %eax
+	faddl	MO(f5)			/* f5+(f6+f7*xm)*xm : xm */
+			sarl	$31, %eax
+	fmul	%st(1)			/* (f5+(f6+f7*xm)*xm)*xm : xm */
+			subl	%eax, %edx
+	faddl	MO(f4)			/* f4+(f5+(f6+f7*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f3)			/* f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f2)			/* f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f1)			/* u:=f1+(f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+
+	fld	%st			/* u : u : xm */
+	fmul	%st(1)			/* u*u : u : xm */
+	fld	%st(2)			/* xm : u*u : u : xm */
+	fadd	%st			/* 2*xm : u*u : u : xm */
+	fxch	%st(1)			/* u*u : 2*xm : u : xm */
+	fmul	%st(2)			/* t2:=u*u*u : 2*xm : u : xm */
+			movl	%edx, %eax
+	fadd	%st, %st(1)		/* t2 : t2+2*xm : u : xm */
+			leal	(%edx,%edx,2),%edx
+	fadd	%st(0)			/* 2*t2 : t2+2*xm : u : xm */
+			subl	%edx, %ecx
+	faddp	%st, %st(3)		/* t2+2*xm : u : 2*t2+xm */
+	fmulp				/* u*(t2+2*xm) : 2*t2+xm */
+	fdivp	%st, %st(1)		/* u*(t2+2*xm)/(2*t2+xm) */
+	fmull	MOX(16+factor,%ecx,8)	/* u*(t2+2*xm)/(2*t2+xm)*FACT */
+	pushl	%eax
+	fildl	(%esp)			/* xe/3 : u*(t2+2*xm)/(2*t2+xm)*FACT */
+	fxch				/* u*(t2+2*xm)/(2*t2+xm)*FACT : xe/3 */
+	popl	%eax
+	fscale				/* u*(t2+2*xm)/(2*t2+xm)*FACT*2^xe/3 */
+	fstp	%st(1)
+#ifdef PIC
+	popl	%ebx
+#endif
+	testl	$0x80000000, 8(%esp)
+	jz	4f
+	fchs
+4:	ret
+
+	/* Return the argument.  */
+1:	fldl	4(%esp)
+	ret
+END(__cbrt)
+weak_alias (__cbrt, cbrt)
diff --git a/sysdeps/libm-i387/s_cbrtf.S b/sysdeps/libm-i387/s_cbrtf.S
new file mode 100644
index 0000000..6978da2
--- /dev/null
+++ b/sysdeps/libm-i387/s_cbrtf.S
@@ -0,0 +1,166 @@
+/* Compute cubic root of float value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   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(f1,@object)
+f1:	.double 0.492659620528969547
+        ASM_SIZE_DIRECTIVE(f1)
+        ASM_TYPE_DIRECTIVE(f2,@object)
+f2:	.double 0.697570460207922770
+        ASM_SIZE_DIRECTIVE(f2)
+        ASM_TYPE_DIRECTIVE(f3,@object)
+f3:	.double 0.191502161678719066
+        ASM_SIZE_DIRECTIVE(f3)
+
+#define CBRT2 1.2599210498948731648
+#define SQR_CBRT2 1.5874010519681994748
+
+	ASM_TYPE_DIRECTIVE(factor,@object)
+factor:	.double 1.0 / SQR_CBRT2
+	.double 1.0 / CBRT2
+	.double 1.0
+	.double CBRT2
+	.double SQR_CBRT2
+	ASM_SIZE_DIRECTIVE(factor)
+
+        ASM_TYPE_DIRECTIVE(two25,@object)
+two25:	.byte 0, 0, 0, 0x4c
+        ASM_SIZE_DIRECTIVE(two25)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%ebx)
+#define MOX(op,x,f) op##@GOTOFF(%ebx,x,f)
+#else
+#define MO(op) op
+#define MOX(op,x,f) op(,x,f)
+#endif
+
+	.text
+ENTRY(__cbrtf)
+	movl	4(%esp), %eax
+	xorl	%ecx, %ecx
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	jz	1f
+	cmpl	$0x7f800000, %eax
+	jae	1f
+
+#ifdef PIC
+	pushl	%ebx
+	call	3f
+3:	popl	%ebx
+	addl    $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
+#endif
+
+	cmpl	$0x00800000, %eax
+	jae	2f
+
+#ifdef PIC
+	flds	8(%esp)
+#else
+	flds	4(%esp)
+#endif
+	fmuls	MO(two25)
+	movl	$-25, %ecx
+#ifdef PIC
+	fstps	8(%esp)
+	movl	8(%esp), %eax
+#else
+	fstps	4(%esp)
+	movl	4(%esp), %eax
+#endif
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$23, %eax
+	andl	$0x807fffff, %edx
+	subl	$126, %eax
+	orl	$0x3f000000, %edx
+	addl	%eax, %ecx
+#ifdef PIC
+	movl	%edx, 8(%esp)
+
+	flds	8(%esp)			/* xm */
+#else
+	movl	%edx, 4(%esp)
+
+	flds	4(%esp)			/* xm */
+#endif
+	fabs
+
+	/* The following code has two track:
+	    a) compute the normalized cbrt value
+	    b) compute xe/3 and xe%3
+	   The right track computes the value for b) and this is done
+	   in an optimized way by avoiding division.  */
+
+	fld	%st(0)			/* xm : xm */
+	fmull	MO(f3)			/* f3*xm : xm */
+			movl	$1431655766, %eax
+	fsubrl	MO(f2)			/* f2-f3*xm : xm */
+			imull	%ecx
+	fmul	%st(1)			/* (f2-f3*xm)*xm : xm */
+			movl	%ecx, %eax
+	faddl	MO(f1)			/* u:=f1+(f2-f3*xm)*xm : xm */
+			sarl	$31, %eax
+	fld	%st			/* u : u : xm */
+			subl	%eax, %edx
+	fmul	%st(1)			/* u*u : u : xm */
+	fld	%st(2)			/* xm : u*u : u : xm */
+	fadd	%st			/* 2*xm : u*u : u : xm */
+	fxch	%st(1)			/* u*u : 2*xm : u : xm */
+	fmul	%st(2)			/* t2:=u*u*u : 2*xm : u : xm */
+			movl	%edx, %eax
+	fadd	%st, %st(1)		/* t2 : t2+2*xm : u : xm */
+			leal	(%edx,%edx,2),%edx
+	fadd	%st(0)			/* 2*t2 : t2+2*xm : u : xm */
+			subl	%edx, %ecx
+	faddp	%st, %st(3)		/* t2+2*xm : u : 2*t2+xm */
+	fmulp				/* u*(t2+2*xm) : 2*t2+xm */
+	fdivp	%st, %st(1)		/* u*(t2+2*xm)/(2*t2+xm) */
+	fmull	MOX(16+factor,%ecx,8)	/* u*(t2+2*xm)/(2*t2+xm)*FACT */
+	pushl	%eax
+	fildl	(%esp)			/* xe/3 : u*(t2+2*xm)/(2*t2+xm)*FACT */
+	fxch				/* u*(t2+2*xm)/(2*t2+xm)*FACT : xe/3 */
+	popl	%eax
+	fscale				/* u*(t2+2*xm)/(2*t2+xm)*FACT*2^xe/3 */
+	fstp	%st(1)
+#ifdef PIC
+	popl	%ebx
+#endif
+	testl	$0x80000000, 4(%esp)
+	jz	4f
+	fchs
+4:	ret
+
+	/* Return the argument.  */
+1:	flds	4(%esp)
+	ret
+END(__cbrtf)
+weak_alias (__cbrtf, cbrtf)
diff --git a/sysdeps/libm-i387/s_cbrtl.S b/sysdeps/libm-i387/s_cbrtl.S
new file mode 100644
index 0000000..b2023d1
--- /dev/null
+++ b/sysdeps/libm-i387/s_cbrtl.S
@@ -0,0 +1,188 @@
+/* Compute cubic root of long double value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
+   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(f1,@object)
+f1:	.double 0.338058687610520237
+	ASM_SIZE_DIRECTIVE(f1)
+        ASM_TYPE_DIRECTIVE(f2,@object)
+f2:	.double 1.67595307700780102
+	ASM_SIZE_DIRECTIVE(f2)
+        ASM_TYPE_DIRECTIVE(f3,@object)
+f3:	.double -2.82414939754975962
+	ASM_SIZE_DIRECTIVE(f3)
+        ASM_TYPE_DIRECTIVE(f4,@object)
+f4:	.double 4.09559907378707839
+	ASM_SIZE_DIRECTIVE(f4)
+        ASM_TYPE_DIRECTIVE(f5,@object)
+f5:	.double -4.11151425200350531
+	ASM_SIZE_DIRECTIVE(f5)
+        ASM_TYPE_DIRECTIVE(f6,@object)
+f6:	.double 2.65298938441952296
+	ASM_SIZE_DIRECTIVE(f6)
+        ASM_TYPE_DIRECTIVE(f7,@object)
+f7:	.double -0.988553671195413709
+	ASM_SIZE_DIRECTIVE(f7)
+        ASM_TYPE_DIRECTIVE(f8,@object)
+f8:	.double 0.161617097923756032
+	ASM_SIZE_DIRECTIVE(f8)
+
+#define CBRT2 1.2599210498948731648
+#define SQR_CBRT2 1.5874010519681994748
+
+	ASM_TYPE_DIRECTIVE(factor,@object)
+factor:	.double 1.0 / SQR_CBRT2
+	.double 1.0 / CBRT2
+	.double 1.0
+	.double CBRT2
+	.double SQR_CBRT2
+	ASM_SIZE_DIRECTIVE(factor)
+
+        ASM_TYPE_DIRECTIVE(two64,@object)
+two64:  .byte 0, 0, 0, 0, 0, 0, 0xf0, 0x43
+        ASM_SIZE_DIRECTIVE(two64)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%ebx)
+#define MOX(op,x,f) op##@GOTOFF(%ebx,x,f)
+#else
+#define MO(op) op
+#define MOX(op,x,f) op(,x,f)
+#endif
+
+	.text
+ENTRY(__cbrtl)
+	movl	4(%esp), %ecx
+	movl	12(%esp), %eax
+	orl	8(%esp), %ecx
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7fff, %eax
+	je	1f
+
+#ifdef PIC
+	pushl	%ebx
+	call	3f
+3:	popl	%ebx
+	addl    $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
+#endif
+
+	cmpl	$0, %eax
+	je	2f
+
+#ifdef PIC
+	fldt	8(%esp)
+#else
+	fldt	4(%esp)
+#endif
+	fmull	MO(two64)
+	movl	$-64, %ecx
+	fstpt	4(%esp)
+	movl	12(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+
+2:	andl	$0x8000, %edx
+	subl	$16382, %eax
+	orl	$0x3ffe, %edx
+	addl	%eax, %ecx
+#ifdef PIC
+	movl	%edx, 16(%esp)
+
+	fldt	8(%esp)			/* xm */
+#else
+	movl	%edx, 12(%esp)
+
+	fldt	4(%esp)			/* xm */
+#endif
+	fabs
+
+	/* The following code has two track:
+	    a) compute the normalized cbrt value
+	    b) compute xe/3 and xe%3
+	   The right track computes the value for b) and this is done
+	   in an optimized way by avoiding division.  */
+
+	fld	%st(0)			/* xm : xm */
+
+	fmull	MO(f7)			/* f7*xm : xm */
+			movl	$1431655766, %eax
+	faddl	MO(f6)			/* f6+f7*xm : xm */
+			imull	%ecx
+	fmul	%st(1)			/* (f6+f7*xm)*xm : xm */
+			movl	%ecx, %eax
+	faddl	MO(f5)			/* f5+(f6+f7*xm)*xm : xm */
+			sarl	$31, %eax
+	fmul	%st(1)			/* (f5+(f6+f7*xm)*xm)*xm : xm */
+			subl	%eax, %edx
+	faddl	MO(f4)			/* f4+(f5+(f6+f7*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f3)			/* f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f2)			/* f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm : xm */
+	fmul	%st(1)			/* (f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+	faddl	MO(f1)			/* u:=f1+(f2+(f3+(f4+(f5+(f6+f7*xm)*xm)*xm)*xm)*xm)*xm : xm */
+
+	fld	%st			/* u : u : xm */
+	fmul	%st(1)			/* u*u : u : xm */
+	fld	%st(2)			/* xm : u*u : u : xm */
+	fadd	%st			/* 2*xm : u*u : u : xm */
+	fxch	%st(1)			/* u*u : 2*xm : u : xm */
+	fmul	%st(2)			/* t2:=u*u*u : 2*xm : u : xm */
+			movl	%edx, %eax
+	fadd	%st, %st(1)		/* t2 : t2+2*xm : u : xm */
+			leal	(%edx,%edx,2),%edx
+	fadd	%st(0)			/* 2*t2 : t2+2*xm : u : xm */
+			subl	%edx, %ecx
+	faddp	%st, %st(3)		/* t2+2*xm : u : 2*t2+xm */
+	fmulp				/* u*(t2+2*xm) : 2*t2+xm */
+	fdivp	%st, %st(1)		/* u*(t2+2*xm)/(2*t2+xm) */
+	fmull	MOX(16+factor,%ecx,8)	/* u*(t2+2*xm)/(2*t2+xm)*FACT */
+	pushl	%eax
+	fildl	(%esp)			/* xe/3 : u*(t2+2*xm)/(2*t2+xm)*FACT */
+	fxch				/* u*(t2+2*xm)/(2*t2+xm)*FACT : xe/3 */
+	popl	%eax
+	fscale				/* u*(t2+2*xm)/(2*t2+xm)*FACT*2^xe/3 */
+	fstp	%st(1)
+#ifdef PIC
+	popl	%ebx
+#endif
+	testl	$0x8000, 12(%esp)
+	jz	4f
+	fchs
+4:	ret
+
+	/* Return the argument.  */
+1:	fldt	4(%esp)
+	ret
+END(__cbrtl)
+weak_alias (__cbrtl, cbrtl)
diff --git a/sysdeps/libm-i387/s_frexp.S b/sysdeps/libm-i387/s_frexp.S
new file mode 100644
index 0000000..6a05f26
--- /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)
diff --git a/sysdeps/libm-i387/s_frexpf.S b/sysdeps/libm-i387/s_frexpf.S
new file mode 100644
index 0000000..1021b97
--- /dev/null
+++ b/sysdeps/libm-i387/s_frexpf.S
@@ -0,0 +1,80 @@
+/* ix87 specific frexp implementation for float.
+   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(two25,@object)
+two25:	.byte 0, 0, 0, 0x4c
+	ASM_SIZE_DIRECTIVE(two25)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%edx)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__frexpf)
+	movl	4(%esp), %eax
+	xorl	%ecx, %ecx
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+	jz	1f
+	cmpl	$0x7f800000, %eax
+	jae	1f
+
+	cmpl	$0x00800000, %eax
+	jae	2f
+
+	flds	4(%esp)
+#ifdef	PIC
+	call	3f
+3:	popl	%edx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-3b], %edx
+#endif
+	fmuls	MO(two25)
+	movl	$-25, %ecx
+	fstps	4(%esp)
+	movl	4(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fffffff, %eax
+
+2:	shrl	$23, %eax
+	andl	$0x807fffff, %edx
+	subl	$126, %eax
+	orl	$0x3f000000, %edx
+	addl	%eax, %ecx
+	movl	%edx, 4(%esp)
+
+	/* Store %ecx in the variable pointed to by the second argument,
+	   get the factor from the stack and return.  */
+1:	movl	8(%esp), %eax
+	flds	4(%esp)
+	movl	%ecx, (%eax)
+	ret
+END(__frexpf)
+weak_alias (__frexpf, frexpf)
diff --git a/sysdeps/libm-i387/s_frexpl.S b/sysdeps/libm-i387/s_frexpl.S
new file mode 100644
index 0000000..e3019ce
--- /dev/null
+++ b/sysdeps/libm-i387/s_frexpl.S
@@ -0,0 +1,82 @@
+/* ix87 specific frexp implementation for long 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(two64,@object)
+two64:	.byte 0, 0, 0, 0, 0, 0, 0xf0, 0x43
+	ASM_SIZE_DIRECTIVE(two64)
+
+#ifdef PIC
+#define MO(op) op##@GOTOFF(%edx)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__frexpl)
+	movl	4(%esp), %ecx
+	movl	12(%esp), %eax
+	orl	8(%esp), %ecx
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+	orl	%eax, %ecx
+	jz	1f
+	xorl	%ecx, %ecx
+	cmpl	$0x7fff, %eax
+	je	1f
+
+	cmpl	$0, %eax
+	je	2f
+
+	fldt	4(%esp)
+#ifdef	PIC
+	call	3f
+3:	popl	%edx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-3b], %edx
+#endif
+	fmull	MO(two64)	/* It's not necessary to use a 80bit factor */
+	movl	$-64, %ecx
+	fstpt	4(%esp)
+	movl	12(%esp), %eax
+	movl	%eax, %edx
+	andl	$0x7fff, %eax
+
+2:	andl	$0x8000, %edx
+	subl	$16382, %eax
+	orl	$0x3ffe, %edx
+	addl	%eax, %ecx
+	movl	%edx, 12(%esp)
+
+	/* Store %ecx in the variable pointed to by the second argument,
+	   get the factor from the stack and return.  */
+1:	movl	16(%esp), %eax
+	fldt	4(%esp)
+	movl	%ecx, (%eax)
+	ret
+END(__frexpl)
+weak_alias (__frexpl, frexpl)