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# -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
# 
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1#GPL 2.0#LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http:##www.mozilla.org#MPL#
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Netscape Portable Runtime (NSPR).
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 2004
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****

# PRInt32 __PR_Darwin_x86_64_AtomicIncrement(PRInt32 *val)
#
# Atomically increment the integer pointed to by 'val' and return
# the result of the increment.
#
    .text
    .globl __PR_Darwin_x86_64_AtomicIncrement
    .private_extern __PR_Darwin_x86_64_AtomicIncrement
    .align 4
__PR_Darwin_x86_64_AtomicIncrement:
    movl $1, %eax
    lock
    xaddl %eax, (%rdi)
    incl %eax
    ret

# PRInt32 __PR_Darwin_x86_64_AtomicDecrement(PRInt32 *val)
#
# Atomically decrement the integer pointed to by 'val' and return
# the result of the decrement.
#
    .text
    .globl __PR_Darwin_x86_64_AtomicDecrement
    .private_extern __PR_Darwin_x86_64_AtomicDecrement
    .align 4
__PR_Darwin_x86_64_AtomicDecrement:
    movl $-1, %eax
    lock
    xaddl %eax, (%rdi)
    decl %eax
    ret

# PRInt32 __PR_Darwin_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval)
#
# Atomically set the integer pointed to by 'val' to the new
# value 'newval' and return the old value.
#
    .text
    .globl __PR_Darwin_x86_64_AtomicSet
    .private_extern __PR_Darwin_x86_64_AtomicSet
    .align 4
__PR_Darwin_x86_64_AtomicSet:
    movl %esi, %eax
    xchgl %eax, (%rdi)
    ret

# PRInt32 __PR_Darwin_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val)
#
# Atomically add 'val' to the integer pointed to by 'ptr'
# and return the result of the addition.
#
    .text
    .globl __PR_Darwin_x86_64_AtomicAdd
    .private_extern __PR_Darwin_x86_64_AtomicAdd
    .align 4
__PR_Darwin_x86_64_AtomicAdd:
    movl %esi, %eax
    lock
    xaddl %eax, (%rdi)
    addl %esi, %eax
    ret