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atomic_and.S revision 1.4 
      1 /*	$NetBSD: atomic_and.S,v 1.4 2008/04/09 12:49:05 nakayama Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include "atomic_op_asm.h"
     40 
     41 	.text
     42 
     43 ENTRY_NOPROFILE(_atomic_and_32)
     44 	ld	[%o0], %o2
     45 1:	and	%o1, %o2, %o3
     46 	cas	[%o0], %o2, %o3
     47 	cmp	%o2, %o3
     48 	bne,a,pn %icc, 1b
     49 	 mov	%o3, %o2
     50 	retl
     51 	 and	%o1, %o2, %o0
     52 ATOMIC_OP_ALIAS(atomic_and_32,_atomic_and_32)
     53 ATOMIC_OP_ALIAS(atomic_and_uint,_atomic_and_32)
     54 STRONG_ALIAS(_atomic_and_uint,_atomic_and_32)
     55 
     56 ATOMIC_OP_ALIAS(atomic_and_32_nv,_atomic_and_32)
     57 STRONG_ALIAS(_atomic_and_32_nv,_atomic_and_32)
     58 ATOMIC_OP_ALIAS(atomic_and_uint_nv,_atomic_and_32)
     59 STRONG_ALIAS(_atomic_and_uint_nv,_atomic_and_32)
     60 
     61 ENTRY_NOPROFILE(_atomic_and_64)
     62 	ldx	[%o0], %o2
     63 1:	and	%o1, %o2, %o3
     64 	casx	[%o0], %o2, %o3
     65 	cmp	%o2, %o3
     66 	bne,a,pn %xcc, 1b
     67 	 mov	%o3, %o2
     68 	retl
     69 	 and	%o1, %o2, %o0
     70 ATOMIC_OP_ALIAS(atomic_and_64,_atomic_and_64)
     71 
     72 ATOMIC_OP_ALIAS(atomic_and_64_nv,_atomic_and_64)
     73 STRONG_ALIAS(_atomic_and_64_nv,_atomic_and_64)
     74 
     75 ATOMIC_OP_ALIAS_SIZE(atomic_and_ulong,_atomic_and)
     76 STRONG_ALIAS_SIZE(_atomic_and_ulong,_atomic_and)
     77 
     78 ATOMIC_OP_ALIAS_SIZE(atomic_and_ulong_nv,_atomic_and)
     79 STRONG_ALIAS_SIZE(_atomic_and_ulong_nv,_atomic_and)
     80