1 ;------------------------------------------------------------------------------
5 ; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
6 ; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
7 ; This program and the accompanying materials
8 ; are licensed and made available under the terms and conditions of the BSD License
9 ; which accompanies this distribution. The full text of the license may be found at
10 ; http://opensource.org/licenses/bsd-license.php.
12 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 ;------------------------------------------------------------------------------
18 AREA cpu_pause, CODE, READONLY
21 ; Requests CPU to pause for a short period of time.
23 ; Requests CPU to pause for a short period of time. Typically used in MP
24 ; systems to prevent memory starvation while waiting for a spin lock.