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atomic_and.S revision 1.2 
      1 /*	$NetBSD: atomic_and.S,v 1.2 2009/12/14 00:38:59 matt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #include <machine/asm.h>
     31 #include "atomic_op_asm.h"
     32 
     33 RCSID("$NetBSD: atomic_and.S,v 1.2 2009/12/14 00:38:59 matt Exp $")
     34 
     35 	.text
     36 	.set	noat
     37 	.set	noreorder
     38 	.set	nomacro
     39 
     40 LEAF(_atomic_and_32)
     41 1:	INT_LL		t0, 0(a0)
     42 	 nop
     43 	and		t0, a1
     44 	INT_SC		t0, 0(a0)
     45 	beq		t0, zero, 1b
     46  	 nop
     47 	j		ra
     48 	 nop
     49 END(_atomic_and_32)
     50 ATOMIC_OP_ALIAS(atomic_and_32, _atomic_and_32)
     51 
     52 LEAF(_atomic_and_32_nv)
     53 1:	INT_LL		v0, 0(a0)
     54 	 nop
     55 	and		v0, a1
     56 	move		t0, v0
     57 	INT_SC		t0, 0(a0)
     58 	beq		t0, zero, 1b
     59  	 nop
     60 	j		ra
     61 	 nop
     62 END(_atomic_and_32_nv)
     63 ATOMIC_OP_ALIAS(atomic_and_32_nv, _atomic_and_32_nv)
     64 
     65 #if !defined(__mips_o32)
     66 LEAF(_atomic_and_64)
     67 1:	REG_LL		t0, 0(a0)
     68 	 nop
     69 	and		t0, a1
     70 	REG_SC		t0, 0(a0)
     71 	beq		t0, zero, 1b
     72  	 nop
     73 	j		ra
     74 	 nop
     75 END(_atomic_and_64)
     76 ATOMIC_OP_ALIAS(atomic_and_64, _atomic_and_64)
     77 
     78 LEAF(_atomic_and_64_nv)
     79 1:	REG_LL		v0, 0(a0)
     80 	 nop
     81 	and		v0, a1
     82 	move		t0, v0
     83 	REG_SC		t0, 0(a0)
     84 	beq		t0, zero, 1b
     85  	 nop
     86 	j		ra
     87 	 nop
     88 END(_atomic_and_64_nv)
     89 ATOMIC_OP_ALIAS(atomic_and_64_nv, _atomic_and_64_nv)
     90 #endif
     91 
     92 #ifdef _LP64
     93 STRONG_ALIAS(_atomic_and_ulong,		_atomic_and_64)
     94 STRONG_ALIAS(_atomic_and_ulong_nv,	_atomic_and_64_nv)
     95 #else
     96 STRONG_ALIAS(_atomic_and_ulong,		_atomic_and_32)
     97 STRONG_ALIAS(_atomic_and_ulong_nv,	_atomic_and_32_nv)
     98 #endif
     99 STRONG_ALIAS(_atomic_and_uint,		_atomic_and_32)
    100 STRONG_ALIAS(_atomic_and_uint_nv,	_atomic_and_32_nv)
    101 
    102 ATOMIC_OP_ALIAS(atomic_and_uint,	_atomic_and_uint)
    103 ATOMIC_OP_ALIAS(atomic_and_uint_nv,	_atomic_and_uint_nv)
    104 ATOMIC_OP_ALIAS(atomic_and_ulong,	_atomic_and_ulong)
    105 ATOMIC_OP_ALIAS(atomic_and_ulong_nv,	_atomic_and_ulong_nv)
    106