84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
100 lines
3.1 KiB
ArmAsm
100 lines
3.1 KiB
ArmAsm
/* $NetBSD: memccpy.S,v 1.4 2013/07/18 21:37:47 matt Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1999 Scott Reynolds. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
RCSID("$NetBSD: memccpy.S,v 1.4 2013/07/18 21:37:47 matt Exp $")
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
ENTRY(memccpy)
|
|
movl 16(%sp),%d0 | count
|
|
jeq Lmcbail | nothing to do
|
|
|
|
movl 4(%sp),%a0 | a0 = toaddr
|
|
#ifndef __mcoldfire__
|
|
subql #1,%d0 | prepare count for DBcc loop
|
|
#endif
|
|
movl 8(%sp),%a1 | a1 = fromaddr
|
|
movl 12(%sp),%d1 | d1 = terminator
|
|
jeq Lmcloop | handle ASCII NUL specially
|
|
|
|
movl %d2,-(%sp) | save scratch register
|
|
Lmcnzloop:
|
|
movb (%a1)+,%d2 | move a byte
|
|
movb %d2,(%a0)+
|
|
cmpb %d2,%d1 | found the terminator?
|
|
#ifndef __mcoldfire__
|
|
dbeq %d0,Lmcnzloop | if not, keep transferring,
|
|
#endif
|
|
jeq Lmcnzdone | otherwise done
|
|
#ifdef __mcoldfire__
|
|
subql #1,%d0
|
|
jne Lmcnzloop
|
|
#else
|
|
clrw %d0 | check to see if more to do
|
|
subql #1,%d0
|
|
jcc Lmcnzloop | yes, keep going...
|
|
#endif
|
|
|
|
movl (%sp)+,%d2 | restore scratch register
|
|
movql #0,%d0 | no terminator found, return NULL
|
|
#ifdef __SVR4_ABI__
|
|
movl %d0,%a0 | XXX maybe use lea to avoid stall?
|
|
#endif
|
|
rts
|
|
|
|
Lmcloop:
|
|
movb (%a1)+,(%a0)+ | move a byte; was it NUL?
|
|
#ifndef __mcoldfire__
|
|
dbeq %d0,Lmcloop | if not, keep transferring,
|
|
#endif
|
|
jeq Lmcdone | otherwise done
|
|
#ifdef __mcoldfire__
|
|
subql #1,%d0
|
|
jne Lmcloop
|
|
#else
|
|
clrw %d0 | check to see if more to do
|
|
subql #1,%d0
|
|
jcc Lmcloop | yes, keep going...
|
|
#endif
|
|
| Note: %d0 is now -1!
|
|
movql #0,%d0 | no terminator found, return NULL
|
|
Lmcbail:
|
|
#ifdef __SVR4_ABI__
|
|
movl %d0,%a0 | XXX maybe use lea to avoid stall?
|
|
#endif
|
|
rts
|
|
|
|
Lmcnzdone:
|
|
movl (%sp)+,%d2 | restore scratch register
|
|
Lmcdone:
|
|
movl %a0,%d0
|
|
rts
|
|
END(memccpy)
|