m68k/atomic/atomic_add.S

1.6  matt /*	$NetBSD: atomic_add.S,v 1.6 2013/07/16 23:24:18 matt Exp $	*/
1.2    ad
1.2    ad /*-
1.2    ad  * Copyright (c) 2007 The NetBSD Foundation, Inc.
1.2    ad  * All rights reserved.
1.2    ad  *
1.2    ad  * This code is derived from software contributed to The NetBSD Foundation
1.2    ad  * by Jason R. Thorpe.
1.2    ad  *
1.2    ad  * Redistribution and use in source and binary forms, with or without
1.2    ad  * modification, are permitted provided that the following conditions
1.2    ad  * are met:
1.2    ad  * 1. Redistributions of source code must retain the above copyright
1.2    ad  *    notice, this list of conditions and the following disclaimer.
1.2    ad  * 2. Redistributions in binary form must reproduce the above copyright
1.2    ad  *    notice, this list of conditions and the following disclaimer in the
1.2    ad  *    documentation and/or other materials provided with the distribution.
1.2    ad  *
1.2    ad  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1.2    ad  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1.2    ad  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.2    ad  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1.2    ad  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.2    ad  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.2    ad  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.2    ad  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.2    ad  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.2    ad  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.2    ad  * POSSIBILITY OF SUCH DAMAGE.
1.2    ad  */
1.2    ad
1.2    ad #include "atomic_op_asm.h"
1.2    ad
1.2    ad 	.text
1.2    ad 	.align	2
1.2    ad
1.4   chs ENTRY(_atomic_add_32)
1.5  matt 	movl	4(%sp), %a0
1.5  matt 	movl	8(%sp), %d0
1.6  matt 	addl	%d0, (%a0)
1.2    ad 	rts
1.6  matt END(_atomic_add_32)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_32,_atomic_add_32)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_int,_atomic_add_32)
1.2    ad STRONG_ALIAS(_atomic_add_int,_atomic_add_32)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_long,_atomic_add_32)
1.2    ad STRONG_ALIAS(_atomic_add_long,_atomic_add_32)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_ptr,_atomic_add_32)
1.2    ad STRONG_ALIAS(_atomic_add_ptr,_atomic_add_32)
1.2    ad
1.4   chs ENTRY(_atomic_add_32_nv)
1.5  matt 	movl	4(%sp), %a0
1.5  matt 1:	movl	(%a0), %d0
1.2    ad 	movl	%d0, %d1
1.5  matt 	addl	8(%sp), %d0
1.6  matt 	casl	%d1, %d0, (%a0)
1.2    ad 	bne	1b
1.2    ad 	movl	%d0, %a0	/* pointers return also in %a0 */
1.2    ad 	rts
1.6  matt END(_atomic_add_32_nv)
1.6  matt
1.2    ad ATOMIC_OP_ALIAS(atomic_add_32_nv,_atomic_add_32_nv)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_int_nv,_atomic_add_32_nv)
1.2    ad STRONG_ALIAS(_atomic_add_int_nv,_atomic_add_32_nv)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_long_nv,_atomic_add_32_nv)
1.2    ad STRONG_ALIAS(_atomic_add_long_nv,_atomic_add_32_nv)
1.2    ad ATOMIC_OP_ALIAS(atomic_add_ptr_nv,_atomic_add_32_nv)
1.2    ad STRONG_ALIAS(_atomic_add_ptr_nv,_atomic_add_32_nv)