glibc/sysdeps/arm/memset.S
Ulrich Drepper 69f155d4fc Update.
1998-04-30 16:45  Ulrich Drepper  <drepper@cygnus.com>

	* inet/ether_aton.c: Including netinet/if_ether.h is not necessary.

	* locale/Makefile (distribute): Add programs/repertoire.h.
	(localedef-modules): Add repertoire.
	(CPPFLAGS): Define REPERTOIREMAP_PATH.
	* locale/programs/repertoire.c: New file.
	* locale/programs/repertoire.h: New file.
	* locale/programs/charmap.c: Starting fixing character set handling
	to handle multi-byte encodings.
	* locale/programs/charset.c: Likewise.
	* locale/programs/charset.h: Likewise.
	* locale/programs/ld-collate.c: Likewise.
	* locale/programs/ld-ctype.c: Likewise.
	* locale/programs/linereader.c: Likewise.
	* locale/programs/localedef.c: Likewise.
	* locale/programs/locfile-kw.gperf: Likewise.
	* locale/programs/locfile-kw.h: Likewise.
	* locale/programs/locfile-token.h: Likewise.
	* locale/programs/locfile.h: Likewise.
	* locale/programs/stringtrans.c: Likewise.

1998-04-18  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/arm/memset.S: Fix off by one error.

	* sysdeps/unix/sysv/linux/arm/sysdep.h (PSEUDO): On error, call
	__syscall_error rather than syscall_error directly.

1998-04-17  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/unix/sysv/linux/arm/mmap.S: New file; implementation of
	mmap() syscall for ARM.

	* sysdeps/unix/arm/start.c: New file; startup code for ARM a.out
	binaries.
1998-04-30 16:57:48 +00:00

68 lines
1.8 KiB
ArmAsm

/* Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>
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 <sysdep.h>
/* void *memset (dstpp, c, len) */
ENTRY(memset)
mov a4, a1
cmp a3, $8 @ at least 8 bytes to do?
blt 2f
orr a2, a2, a2, lsl $8
orr a2, a2, a2, lsl $16
1:
tst a4, $3 @ aligned yet?
strneb a2, [a4], $1
subne a3, a3, $1
bne 1b
mov ip, a2
1:
cmp a3, $8 @ 8 bytes still to do?
blt 2f
stmia a4!, {a2, ip}
sub a3, a3, $8
cmp a3, $8 @ 8 bytes still to do?
blt 2f
stmia a4!, {a2, ip}
sub a3, a3, $8
cmp a3, $8 @ 8 bytes still to do?
blt 2f
stmia a4!, {a2, ip}
sub a3, a3, $8
cmp a3, $8 @ 8 bytes still to do?
stmgeia a4!, {a2, ip}
subge a3, a3, $8
bge 1b
2:
movs a3, a3 @ anything left?
RETINSTR(moveq,pc,lr) @ nope
rsb a3, a3, $7
add pc, pc, a3, lsl $2
mov r0, r0
strb a2, [a4], $1
strb a2, [a4], $1
strb a2, [a4], $1
strb a2, [a4], $1
strb a2, [a4], $1
strb a2, [a4], $1
strb a2, [a4], $1
RETINSTR(mov,pc,lr)
END(memset)