diff options
Diffstat (limited to 'src/libs/xpcom18a4/nsprpub/pr/src/md/unix/os_Darwin_x86.s')
-rw-r--r-- | src/libs/xpcom18a4/nsprpub/pr/src/md/unix/os_Darwin_x86.s | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/nsprpub/pr/src/md/unix/os_Darwin_x86.s b/src/libs/xpcom18a4/nsprpub/pr/src/md/unix/os_Darwin_x86.s new file mode 100644 index 00000000..276b16e0 --- /dev/null +++ b/src/libs/xpcom18a4/nsprpub/pr/src/md/unix/os_Darwin_x86.s @@ -0,0 +1,109 @@ +# -*- 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) 2003 +# the Initial Developer. All Rights Reserved. +# +# Contributor(s): +# Josh Aas <josh@mozilla.com> +# +# 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 ***** + +# +# Based on os_Linux_x86.s +# + +# +# PRInt32 __PR_Darwin_x86_AtomicIncrement(PRInt32 *val); +# +# Atomically increment the integer pointed to by 'val' and return +# the result of the increment. +# + .text + .globl __PR_Darwin_x86_AtomicIncrement + .align 4 +__PR_Darwin_x86_AtomicIncrement: + movl 4(%esp), %ecx + movl $1, %eax + lock + xaddl %eax, (%ecx) + incl %eax + ret + +# +# PRInt32 __PR_Darwin_x86_AtomicDecrement(PRInt32 *val); +# +# Atomically decrement the integer pointed to by 'val' and return +# the result of the decrement. +# + .text + .globl __PR_Darwin_x86_AtomicDecrement + .align 4 +__PR_Darwin_x86_AtomicDecrement: + movl 4(%esp), %ecx + movl $-1, %eax + lock + xaddl %eax, (%ecx) + decl %eax + ret + +# +# PRInt32 __PR_Darwin_x86_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_AtomicSet + .align 4 +__PR_Darwin_x86_AtomicSet: + movl 4(%esp), %ecx + movl 8(%esp), %eax + xchgl %eax, (%ecx) + ret + +# +# PRInt32 __PR_Darwin_x86_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_AtomicAdd + .align 4 +__PR_Darwin_x86_AtomicAdd: + movl 4(%esp), %ecx + movl 8(%esp), %eax + movl %eax, %edx + lock + xaddl %eax, (%ecx) + addl %edx, %eax + ret |