atomic_sub.S revision 1.2.4.2
1 1.2.4.2 yamt /* $NetBSD: atomic_sub.S,v 1.2.4.2 2014/05/22 11:26:29 yamt Exp $ */ 2 1.2.4.2 yamt 3 1.2.4.2 yamt /*- 4 1.2.4.2 yamt * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 1.2.4.2 yamt * All rights reserved. 6 1.2.4.2 yamt * 7 1.2.4.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 yamt * by Jason R. Thorpe. 9 1.2.4.2 yamt * 10 1.2.4.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.4.2 yamt * modification, are permitted provided that the following conditions 12 1.2.4.2 yamt * are met: 13 1.2.4.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.4.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.4.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.4.2 yamt * 19 1.2.4.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.4.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.4.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.4.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.4.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.4.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.4.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.4.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.4.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.4.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.4.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.2.4.2 yamt */ 31 1.2.4.2 yamt 32 1.2.4.2 yamt #include "atomic_op_asm.h" 33 1.2.4.2 yamt 34 1.2.4.2 yamt .text 35 1.2.4.2 yamt .align 2 36 1.2.4.2 yamt 37 1.2.4.2 yamt ENTRY(_atomic_sub_32) 38 1.2.4.2 yamt movl 4(%sp), %a0 39 1.2.4.2 yamt movl 8(%sp), %d0 40 1.2.4.2 yamt subl %d0, (%a0) 41 1.2.4.2 yamt rts 42 1.2.4.2 yamt END(_atomic_sub_32) 43 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_32,_atomic_sub_32) 44 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_int,_atomic_sub_32) 45 1.2.4.2 yamt STRONG_ALIAS(_atomic_sub_int,_atomic_sub_32) 46 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_long,_atomic_sub_32) 47 1.2.4.2 yamt STRONG_ALIAS(_atomic_sub_long,_atomic_sub_32) 48 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_ptr,_atomic_sub_32) 49 1.2.4.2 yamt STRONG_ALIAS(_atomic_sub_ptr,_atomic_sub_32) 50 1.2.4.2 yamt 51 1.2.4.2 yamt ENTRY(_atomic_sub_32_nv) 52 1.2.4.2 yamt movl 4(%sp), %a0 53 1.2.4.2 yamt 1: movl (%a0), %d0 54 1.2.4.2 yamt movl %d0, %d1 55 1.2.4.2 yamt subl 8(%sp), %d0 56 1.2.4.2 yamt casl %d1, %d0, (%a0) 57 1.2.4.2 yamt bne 1b 58 1.2.4.2 yamt movl %d0, %a0 /* pointers return also in %a0 */ 59 1.2.4.2 yamt rts 60 1.2.4.2 yamt END(_atomic_sub_32_nv) 61 1.2.4.2 yamt 62 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_32_nv,_atomic_sub_32_nv) 63 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_int_nv,_atomic_sub_32_nv) 64 1.2.4.2 yamt STRONG_ALIAS(_atomic_sub_int_nv,_atomic_sub_32_nv) 65 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_long_nv,_atomic_sub_32_nv) 66 1.2.4.2 yamt STRONG_ALIAS(_atomic_sub_long_nv,_atomic_sub_32_nv) 67 1.2.4.2 yamt ATOMIC_OP_ALIAS(atomic_sub_ptr_nv,_atomic_sub_32_nv) 68 1.2.4.2 yamt STRONG_ALIAS(_atomic_sub_ptr_nv,_atomic_sub_32_nv) 69 1.2.4.2 yamt CRT_ALIAS(__sync_sub_and_fetch_4,_atomic_sub_32_nv) 70 1.2.4.2 yamt 71 1.2.4.2 yamt ENTRY(__sync_fetch_and_sub_4) 72 1.2.4.2 yamt movl 4(%sp), %a0 73 1.2.4.2 yamt 1: movl (%a0), %d0 74 1.2.4.2 yamt movl %d0, %d1 75 1.2.4.2 yamt subl 8(%sp), %d1 76 1.2.4.2 yamt casl %d0, %d1, (%a0) 77 1.2.4.2 yamt bne 1b 78 1.2.4.2 yamt movl %d0, %a0 /* pointers return also in %a0 */ 79 1.2.4.2 yamt rts 80 1.2.4.2 yamt END(__sync_fetch_and_sub_4) 81 1.2.4.2 yamt 82 1.2.4.2 yamt ENTRY(_atomic_sub_16_nv) 83 1.2.4.2 yamt movl 4(%sp), %a0 84 1.2.4.2 yamt 1: movw (%a0), %d0 85 1.2.4.2 yamt movw %d0, %d1 86 1.2.4.2 yamt subw 8(%sp), %d0 87 1.2.4.2 yamt casw %d1, %d0, (%a0) 88 1.2.4.2 yamt bne 1b 89 1.2.4.2 yamt rts 90 1.2.4.2 yamt END(_atomic_sub_16_nv) 91 1.2.4.2 yamt 92 1.2.4.2 yamt CRT_ALIAS(__sync_sub_and_fetch_2,_atomic_sub_16_nv) 93 1.2.4.2 yamt 94 1.2.4.2 yamt ENTRY(__sync_fetch_and_sub_2) 95 1.2.4.2 yamt movl 4(%sp), %a0 96 1.2.4.2 yamt 1: movw (%a0), %d0 97 1.2.4.2 yamt movw %d0, %d1 98 1.2.4.2 yamt subw 8(%sp), %d1 99 1.2.4.2 yamt casw %d0, %d1, (%a0) 100 1.2.4.2 yamt bne 1b 101 1.2.4.2 yamt rts 102 1.2.4.2 yamt END(__sync_fetch_and_sub_2) 103 1.2.4.2 yamt 104 1.2.4.2 yamt ENTRY(_atomic_sub_8_nv) 105 1.2.4.2 yamt movl 4(%sp), %a0 106 1.2.4.2 yamt 1: movb (%a0), %d0 107 1.2.4.2 yamt movb %d0, %d1 108 1.2.4.2 yamt subb 8(%sp), %d0 109 1.2.4.2 yamt casb %d1, %d0, (%a0) 110 1.2.4.2 yamt bne 1b 111 1.2.4.2 yamt rts 112 1.2.4.2 yamt END(_atomic_sub_8_nv) 113 1.2.4.2 yamt 114 1.2.4.2 yamt CRT_ALIAS(__sync_sub_and_fetch_1,_atomic_sub_8_nv) 115 1.2.4.2 yamt 116 1.2.4.2 yamt ENTRY(__sync_fetch_and_sub_1) 117 1.2.4.2 yamt movl 4(%sp), %a0 118 1.2.4.2 yamt 1: movb (%a0), %d0 119 1.2.4.2 yamt movb %d0, %d1 120 1.2.4.2 yamt subb 8(%sp), %d1 121 1.2.4.2 yamt casb %d0, %d1, (%a0) 122 1.2.4.2 yamt bne 1b 123 1.2.4.2 yamt rts 124 1.2.4.2 yamt END(__sync_fetch_and_sub_1) 125
Indexes created Thu Oct 02 14:10:14 GMT 2025