mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
61 lines
2.2 KiB
NASM
61 lines
2.2 KiB
NASM
; -*- Mode: asm; tab-width: 8; c-basic-offset: 4 -*-
|
|
|
|
; ***** 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 an OS/2 implementation of js_CompareAndSwap in assembly.
|
|
;
|
|
; The Initial Developer of the Original Code is
|
|
; IBM Corporation.
|
|
; Portions created by the Initial Developer are Copyright (C) 2001
|
|
; 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 *****
|
|
|
|
.486P
|
|
.MODEL FLAT, OPTLINK
|
|
.STACK
|
|
|
|
.CODE
|
|
|
|
;;;---------------------------------------------------------------------
|
|
;;; int _Optlink js_CompareAndSwap(jsword *w, jsword ov, jsword nv)
|
|
;;;---------------------------------------------------------------------
|
|
js_CompareAndSwap PROC OPTLINK EXPORT
|
|
push ebx
|
|
mov ebx, eax
|
|
mov eax, edx
|
|
mov edx, ebx
|
|
lock cmpxchg [ebx], ecx
|
|
sete al
|
|
and eax, 1h
|
|
pop ebx
|
|
ret
|
|
js_CompareAndSwap endp
|
|
|
|
END
|