1 /** @file 2 CpuPause function. 3 4 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 16 17 18 /** 19 Requests CPU to pause for a short period of time. 20 21 Requests CPU to pause for a short period of time. Typically used in MP 22 systems to prevent memory starvation while waiting for a spin lock. 23 24 **/ 25 VOID 26 EFIAPI 27 CpuPause ( 28 VOID 29 ) 30 { 31 _asm { 32 pause 33 } 34 } 35 36
