glibc/sysdeps/i386/sub_n.S
Ulrich Drepper ae828bc6f9 Update.
1998-03-02 17:55  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/add_n.S: Change to use ENTRY and END macro.
	* sysdeps/i386/addmul_1.S: Likewise.
	* sysdeps/i386/lshift.S: Likewise.
	* sysdeps/i386/mul_1.S: Likewise.
	* sysdeps/i386/rshift.S: Likewise.
	* sysdeps/i386/sub_n.S: Likewise.
	* sysdeps/i386/submul_1.S: Likewise.
	* sysdeps/i386/i586/add_n.S: Likewise.
	* sysdeps/i386/i586/addmul_1.S: Likewise.
	* sysdeps/i386/i586/lshift.S: Likewise.
	* sysdeps/i386/i586/mul_1.S: Likewise.
	* sysdeps/i386/i586/rshift.S: Likewise.
	* sysdeps/i386/i586/sub_n.S: Likewise.
	* sysdeps/i386/i586/submul_1.S: Likewise.

	* sysdeps/i386/sysdep.h: Extend last change.

	* sysdeps/unix/sysv/linux/i386/sysdep.h: Follow Intel's advice
	to have only one exit point for functions.

1998-03-02  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Fix msgfmt test.  Fix handling of //s in sysdeps
	search.

1998-03-02 13:28  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules: Generate libc.so with absolute paths for the used
	shared objects.

	* config.make.in: Add MAKEINFO definition.

1998-03-02  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/sysdep.h (ASM_SIZE_DIRECTIVE): Add ; at the end.
	(ENTRY): Use STABS_FUN.
	(END): Use STABS_FUN_END.
	(STABS_FUN, STABS_FUN2, STABS_FUN_END): New macro to emit stabs info.

	* elf/Makefile: Add rules to build sprof program.
	* elf/sprof.c: New file.

1998-02-28  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* misc/syslog.c (openlog_internal): Insert missing closing brace.

1998-02-06  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* configure.in: Check for working msgfmt version (from GNU gettext
	0.10 or later).

1998-03-02  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Avoid //s in sysdirs.
	Patch by Roland McGrath.

	* stdlib/a64l.c (a64l): Rewrite by Joe Keane <jgk@jgk.org>.

1998-03-02 07:17  H.J. Lu  <hjl@gnu.org>

	* elf/dl-open.c (_dl_open): Update _dl_global_scope_end when
	setting _dl_global_scope for RTLD_GLOBAL.

1998-02-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/make-syscalls.sh: Fix last change so that all
	possible lists of object-suffixes are taken care of.

1998-03-02 10:16  Ulrich Drepper  <drepper@cygnus.com>

	* timezone/private.h: Update from tzcode1998c.
	* timezone/zic.c: Likewise.
	* timezone/antarctica: Updated from tzdata1998c.
	* timezone/asia: Likewise.
	* timezone/australasia: Likewise.
	* timezone/europe: Likewise.
	* timezone/southamerica: Likewise.

1998-03-02  Ulrich Drepper  <drepper@cygnus.com>

	* posix/glob.c (glob_in_dir): Add support for cases insensitive
	VMS.  Patch by John W. Eaton <jwe@bevo.che.wisc.edu>.
1998-03-02 18:02:11 +00:00

104 lines
2.8 KiB
ArmAsm

/* i80386 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store
sum in a third limb vector.
Copyright (C) 1992, 1994, 1995, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP 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 MP 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 MP 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. */
/*
INPUT PARAMETERS
res_ptr (sp + 4)
s1_ptr (sp + 8)
s2_ptr (sp + 12)
size (sp + 16)
*/
#include "sysdep.h"
#include "asm-syntax.h"
.text
ENTRY(__mpn_sub_n)
pushl %edi
pushl %esi
movl 12(%esp),%edi /* res_ptr */
movl 16(%esp),%esi /* s1_ptr */
movl 20(%esp),%edx /* s2_ptr */
movl 24(%esp),%ecx /* size */
movl %ecx,%eax
shrl $3,%ecx /* compute count for unrolled loop */
negl %eax
andl $7,%eax /* get index where to start loop */
jz L(oop) /* necessary special case for 0 */
incl %ecx /* adjust loop count */
shll $2,%eax /* adjustment for pointers... */
subl %eax,%edi /* ... since they are offset ... */
subl %eax,%esi /* ... by a constant when we ... */
subl %eax,%edx /* ... enter the loop */
shrl $2,%eax /* restore previous value */
#ifdef PIC
/* Calculate start address in loop for PIC. Due to limitations in some
assemblers, Loop-L0-3 cannot be put into the leal */
call L(0)
L(0): leal (%eax,%eax,8),%eax
addl (%esp),%eax
addl $(L(oop)-L(0)-3),%eax
addl $4,%esp
#else
/* Calculate start address in loop for non-PIC. */
leal (L(oop) - 3)(%eax,%eax,8),%eax
#endif
jmp *%eax /* jump into loop */
ALIGN (3)
L(oop): movl (%esi),%eax
sbbl (%edx),%eax
movl %eax,(%edi)
movl 4(%esi),%eax
sbbl 4(%edx),%eax
movl %eax,4(%edi)
movl 8(%esi),%eax
sbbl 8(%edx),%eax
movl %eax,8(%edi)
movl 12(%esi),%eax
sbbl 12(%edx),%eax
movl %eax,12(%edi)
movl 16(%esi),%eax
sbbl 16(%edx),%eax
movl %eax,16(%edi)
movl 20(%esi),%eax
sbbl 20(%edx),%eax
movl %eax,20(%edi)
movl 24(%esi),%eax
sbbl 24(%edx),%eax
movl %eax,24(%edi)
movl 28(%esi),%eax
sbbl 28(%edx),%eax
movl %eax,28(%edi)
leal 32(%edi),%edi
leal 32(%esi),%esi
leal 32(%edx),%edx
decl %ecx
jnz L(oop)
sbbl %eax,%eax
negl %eax
popl %esi
popl %edi
ret
END(__mpn_sub_n)