atomic_dec.S revision 1.4.2.1
1 1.4.2.1 wrstuden /* $NetBSD: atomic_dec.S,v 1.4.2.1 2008/06/23 04:26:45 wrstuden Exp $ */ 2 1.2 ad 3 1.2 ad /*- 4 1.2 ad * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 1.2 ad * All rights reserved. 6 1.2 ad * 7 1.2 ad * This code is derived from software contributed to The NetBSD Foundation 8 1.2 ad * by Jason R. Thorpe. 9 1.2 ad * 10 1.2 ad * Redistribution and use in source and binary forms, with or without 11 1.2 ad * modification, are permitted provided that the following conditions 12 1.2 ad * are met: 13 1.2 ad * 1. Redistributions of source code must retain the above copyright 14 1.2 ad * notice, this list of conditions and the following disclaimer. 15 1.2 ad * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 ad * notice, this list of conditions and the following disclaimer in the 17 1.2 ad * documentation and/or other materials provided with the distribution. 18 1.2 ad * 19 1.2 ad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 ad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 ad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 ad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 ad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 ad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 ad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 ad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 ad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 ad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 ad * POSSIBILITY OF SUCH DAMAGE. 30 1.2 ad */ 31 1.2 ad 32 1.2 ad #include "atomic_op_asm.h" 33 1.2 ad 34 1.2 ad .text 35 1.2 ad 36 1.4.2.1 wrstuden ENTRY(_atomic_dec_32) 37 1.3 matt 1: lwarx %r10,0,%r3 38 1.3 matt addi %r10,%r10,-1 39 1.3 matt stwcx. %r10,0,%r3 40 1.2 ad bne- 1b 41 1.2 ad blr 42 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_32,_atomic_dec_32) 43 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_uint,_atomic_dec_32) 44 1.2 ad STRONG_ALIAS(_atomic_dec_uint,_atomic_dec_32) 45 1.2 ad #if !defined(_LP64) 46 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_ulong,_atomic_dec_32) 47 1.2 ad STRONG_ALIAS(_atomic_dec_ulong,_atomic_dec_32) 48 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_ptr,_atomic_dec_32) 49 1.2 ad STRONG_ALIAS(_atomic_dec_ptr,_atomic_dec_32) 50 1.2 ad #endif 51 1.2 ad 52 1.4.2.1 wrstuden ENTRY(_atomic_dec_32_nv) 53 1.3 matt 1: lwarx %r10,0,%r3 54 1.3 matt addi %r10,%r10,-1 55 1.3 matt stwcx. %r10,0,%r3 56 1.2 ad bne- 1b 57 1.3 matt mr %r3,%r10 58 1.2 ad blr 59 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_32_nv,_atomic_dec_32_nv) 60 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_uint_nv,_atomic_dec_32_nv) 61 1.2 ad STRONG_ALIAS(_atomic_dec_uint_nv,_atomic_dec_32_nv) 62 1.2 ad #if !defined(_LP64) 63 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_ulong_nv,_atomic_dec_32_nv) 64 1.2 ad STRONG_ALIAS(_atomic_dec_ulong_nv,_atomic_dec_32_nv) 65 1.2 ad ATOMIC_OP_ALIAS(atomic_dec_ptr_nv,_atomic_dec_32_nv) 66 1.2 ad STRONG_ALIAS(_atomic_dec_ptr_nv,_atomic_dec_32_nv) 67 1.2 ad #endif 68
Indexes created Mon Oct 27 17:09:47 GMT 2025