atomic_dec.S revision 1.4.2.2
1 1.4.2.2 matt /* $NetBSD: atomic_dec.S,v 1.4.2.2 2008/01/09 01:21:11 matt Exp $ */ 2 1.4.2.2 matt 3 1.4.2.2 matt /*- 4 1.4.2.2 matt * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 1.4.2.2 matt * All rights reserved. 6 1.4.2.2 matt * 7 1.4.2.2 matt * This code is derived from software contributed to The NetBSD Foundation 8 1.4.2.2 matt * by Jason R. Thorpe. 9 1.4.2.2 matt * 10 1.4.2.2 matt * Redistribution and use in source and binary forms, with or without 11 1.4.2.2 matt * modification, are permitted provided that the following conditions 12 1.4.2.2 matt * are met: 13 1.4.2.2 matt * 1. Redistributions of source code must retain the above copyright 14 1.4.2.2 matt * notice, this list of conditions and the following disclaimer. 15 1.4.2.2 matt * 2. Redistributions in binary form must reproduce the above copyright 16 1.4.2.2 matt * notice, this list of conditions and the following disclaimer in the 17 1.4.2.2 matt * documentation and/or other materials provided with the distribution. 18 1.4.2.2 matt * 3. All advertising materials mentioning features or use of this software 19 1.4.2.2 matt * must display the following acknowledgement: 20 1.4.2.2 matt * This product includes software developed by the NetBSD 21 1.4.2.2 matt * Foundation, Inc. and its contributors. 22 1.4.2.2 matt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.4.2.2 matt * contributors may be used to endorse or promote products derived 24 1.4.2.2 matt * from this software without specific prior written permission. 25 1.4.2.2 matt * 26 1.4.2.2 matt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.4.2.2 matt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.4.2.2 matt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.4.2.2 matt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.4.2.2 matt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.4.2.2 matt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.4.2.2 matt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.4.2.2 matt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.4.2.2 matt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.4.2.2 matt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.4.2.2 matt * POSSIBILITY OF SUCH DAMAGE. 37 1.4.2.2 matt */ 38 1.4.2.2 matt 39 1.4.2.2 matt #include "atomic_op_asm.h" 40 1.4.2.2 matt 41 1.4.2.2 matt .text 42 1.4.2.2 matt 43 1.4.2.2 matt ENTRY_NOPROFILE(_atomic_dec_32) 44 1.4.2.2 matt ld [%o0], %o2 45 1.4.2.2 matt 1: add %o2, -1, %o3 46 1.4.2.2 matt cas [%o0], %o2, %o3 47 1.4.2.2 matt cmp %o2, %o3 48 1.4.2.2 matt bne,a,pn %icc, 1b 49 1.4.2.2 matt mov %o3, %o2 50 1.4.2.2 matt retl 51 1.4.2.2 matt add %o2, -1, %o0 52 1.4.2.2 matt ATOMIC_OP_ALIAS(atomic_dec_32,_atomic_dec_32) 53 1.4.2.2 matt ATOMIC_OP_ALIAS(atomic_dec_uint,_atomic_dec_32) 54 1.4.2.2 matt STRONG_ALIAS(_atomic_dec_uint,_atomic_dec_32) 55 1.4.2.2 matt 56 1.4.2.2 matt ATOMIC_OP_ALIAS(atomic_dec_32_nv,_atomic_dec_32) 57 1.4.2.2 matt STRONG_ALIAS(_atomic_dec_32_nv,_atomic_dec_32) 58 1.4.2.2 matt ATOMIC_OP_ALIAS(atomic_dec_uint_nv,_atomic_dec_32) 59 1.4.2.2 matt STRONG_ALIAS(_atomic_dec_uint_nv,_atomic_dec_32) 60 1.4.2.2 matt 61 1.4.2.2 matt ENTRY_NOPROFILE(_atomic_dec_64) 62 1.4.2.2 matt ldx [%o0], %o2 63 1.4.2.2 matt 1: add %o2, -1, %o3 64 1.4.2.2 matt casx [%o0], %o2, %o3 65 1.4.2.2 matt cmp %o2, %o3 66 1.4.2.2 matt bne,a,pn %icc, 1b 67 1.4.2.2 matt mov %o3, %o2 68 1.4.2.2 matt retl 69 1.4.2.2 matt add %o2, -1, %o0 70 1.4.2.2 matt ATOMIC_OP_ALIAS(atomic_dec_64,_atomic_dec_64) 71 1.4.2.2 matt 72 1.4.2.2 matt ATOMIC_OP_ALIAS(atomic_dec_64_nv,_atomic_dec_64) 73 1.4.2.2 matt STRONG_ALIAS(_atomic_dec_64_nv,_atomic_dec_64) 74 1.4.2.2 matt 75 1.4.2.2 matt ATOMIC_OP_ALIAS_SIZE(atomic_dec_ulong,_atomic_dec) 76 1.4.2.2 matt STRONG_ALIAS_SIZE(_atomic_dec_ulong,_atomic_dec) 77 1.4.2.2 matt ATOMIC_OP_ALIAS_SIZE(atomic_dec_ptr,_atomic_dec) 78 1.4.2.2 matt STRONG_ALIAS_SIZE(_atomic_dec_ptr,_atomic_dec) 79 1.4.2.2 matt 80 1.4.2.2 matt ATOMIC_OP_ALIAS_SIZE(atomic_dec_ulong_nv,_atomic_dec) 81 1.4.2.2 matt STRONG_ALIAS_SIZE(_atomic_dec_ulong_nv,_atomic_dec) 82 1.4.2.2 matt ATOMIC_OP_ALIAS_SIZE(atomic_dec_ptr_nv,_atomic_dec) 83 1.4.2.2 matt STRONG_ALIAS_SIZE(_atomic_dec_ptr_nv,_atomic_dec) 84
Indexes created Fri Oct 03 15:10:06 GMT 2025