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Annotation of src/common/lib/libc/arch/alpha/atomic/atomic_inc.S, Revision 1.1.2.1

1.1.2.1 ! thorpej     1: /*     $NetBSD: atomic_add.S,v 1.1.2.1 2007/04/17 04:28:19 thorpej 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: LEAF_NOPROFILE(_atomic_inc_32, 1)
        !            44: 1:     ldl_l   t1, 0(a0)
        !            45:        addl    t1, 1, t2
        !            46:        stl_c   t2, 0(a0)
        !            47:        beq     t2, 2f
        !            48:        RET
        !            49: 2:     br      1b
        !            50:        END(_atomic_inc_32)
        !            51: ATOMIC_OP_ALIAS(atomic_inc_32,_atomic_inc_32)
        !            52: ATOMIC_OP_ALIAS(atomic_inc_uint,_atomic_inc_32)
        !            53:
        !            54: LEAF_NOPROFILE(_atomic_inc_32_nv, 1)
        !            55: 1:     ldl_l   t1, 0(a0)
        !            56:        addl    t1, 1, t2
        !            57:        mov     t2, v0
        !            58:        stl_c   t2, 0(a0)
        !            59:        beq     t2, 2f
        !            60:        RET
        !            61: 2:     br      1b
        !            62:        END(_atomic_inc_32_nv)
        !            63: ATOMIC_OP_ALIAS(atomic_inc_32_nv,_atomic_inc_32_nv)
        !            64: ATOMIC_OP_ALIAS(atomic_inc_uint_nv,_atomic_inc_32_nv)
        !            65:
        !            66: LEAF_NOPROFILE(_atomic_inc_64, 1)
        !            67: 1:     ldq_l   t1, 0(a0)
        !            68:        addq    t1, 1, t2
        !            69:        stq_c   t2, 0(a0)
        !            70:        beq     t2, 2f
        !            71:        RET
        !            72: 2:     br      1b
        !            73:        END(_atomic_inc_64)
        !            74: ATOMIC_OP_ALIAS(atomic_inc_64,_atomic_inc_64)
        !            75: ATOMIC_OP_ALIAS(atomic_inc_ulong,_atomic_inc_64)
        !            76: ATOMIC_OP_ALIAS(atomic_inc_ptr,_atomic_inc_64)
        !            77:
        !            78: LEAF_NOPROFILE(_atomic_inc_64_nv, 1)
        !            79: 1:     ldq_l   t1, 0(a0)
        !            80:        addq    t1, 1, t2
        !            81:        mov     t2, v0
        !            82:        stq_c   t2, 0(a0)
        !            83:        beq     t2, 2f
        !            84:        RET
        !            85: 2:     br      1b
        !            86:        END(_atomic_inc_64_nv)
        !            87: ATOMIC_OP_ALIAS(atomic_inc_64_nv,_atomic_inc_64_nv)
        !            88: ATOMIC_OP_ALIAS(atomic_inc_ulong_nv,_atomic_inc_64_nv)
        !            89: ATOMIC_OP_ALIAS(atomic_inc_ptr_nv,_atomic_inc_64_nv)

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