Make MDE package pass intel IPF compiler with /W4 /WX switched on.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / Mwait.c

/** @file\r
  AsmMwait function\r
\r
  Copyright (c) 2006, Intel Corporation<BR>\r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#if _MSC_EXTENSIONS\r
\r
UINTN\r
EFIAPI\r
AsmMwait (\r
  IN      UINTN                     RegisterEax,\r
  IN      UINTN                     RegisterEcx\r
  )\r
{\r
  _asm {\r
    mov     eax, RegisterEax\r
    mov     ecx, RegisterEcx\r
    _emit   0x0f              // mwait\r
    _emit   0x01\r
    _emit   0xC9\r
  }\r
}\r
\r
#endif\r