| 1 | ;; @file
|
|---|
| 2 | ; IPRT - ASMAtomicBitToggle().
|
|---|
| 3 | ;
|
|---|
| 4 |
|
|---|
| 5 | ;
|
|---|
| 6 | ; Copyright (C) 2006-2007 Sun Microsystems, Inc.
|
|---|
| 7 | ;
|
|---|
| 8 | ; This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 9 | ; available from http://www.virtualbox.org. This file is free software;
|
|---|
| 10 | ; you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 11 | ; General Public License (GPL) as published by the Free Software
|
|---|
| 12 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 13 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 14 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 15 | ;
|
|---|
| 16 | ; The contents of this file may alternatively be used under the terms
|
|---|
| 17 | ; of the Common Development and Distribution License Version 1.0
|
|---|
| 18 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 19 | ; VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 20 | ; CDDL are applicable instead of those of the GPL.
|
|---|
| 21 | ;
|
|---|
| 22 | ; You may elect to license modified versions of this file under the
|
|---|
| 23 | ; terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 24 | ;
|
|---|
| 25 | ; Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 26 | ; Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 27 | ; additional information or have any questions.
|
|---|
| 28 | ;
|
|---|
| 29 |
|
|---|
| 30 |
|
|---|
| 31 | ;*******************************************************************************
|
|---|
| 32 | ;* Header Files *
|
|---|
| 33 | ;*******************************************************************************
|
|---|
| 34 | %include "iprt/asmdefs.mac"
|
|---|
| 35 |
|
|---|
| 36 | BEGINCODE
|
|---|
| 37 |
|
|---|
| 38 | ;;
|
|---|
| 39 | ; Atomically toggles a bit in a bitmap.
|
|---|
| 40 | ;
|
|---|
| 41 | ; @param rcx pvBitmap Pointer to the bitmap.
|
|---|
| 42 | ; @param edx iBit The bit to test and set.
|
|---|
| 43 | BEGINPROC_EXPORTED ASMAtomicBitToggle
|
|---|
| 44 | lock btc [rcx], edx
|
|---|
| 45 | ret
|
|---|
| 46 | ENDPROC ASMAtomicBitToggle
|
|---|
| 47 |
|
|---|
