MdePkg/Library/BaseLib/Ia32/WriteMsr32.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006, Intel Corporation
   4 ; All rights reserved. This program and the accompanying materials
   5 ; are licensed and made available under the terms and conditions of the BSD License
   6 ; which accompanies this distribution.  The full text of the license may be found at
   7 ; http://opensource.org/licenses/bsd-license.php
   8 ;
   9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11 ;
  12 ; Module Name:
  13 ;
  14 ;   WriteMsr32.Asm
  15 ;
  16 ; Abstract:
  17 ;
  18 ;   AsmWriteMsr32 function
  19 ;
  20 ; Notes:
  21 ;
  22 ;------------------------------------------------------------------------------
  23
  24     .586P
  25     .model  flat
  26     .code
  27
  28 ;------------------------------------------------------------------------------
  29 ; UINT32
  30 ; EFIAPI
  31 ; AsmWriteMsr32 (
  32 ;   IN UINT32  Index,
  33 ;   IN UINT32  Value
  34 ;   );
  35 ;------------------------------------------------------------------------------
  36 _AsmWriteMsr32  PROC
  37     mov     eax, [esp + 8]
  38     xor     edx, edx
  39     mov     ecx, [esp + 4]
  40     wrmsr
  41     ret
  42 _AsmWriteMsr32  ENDP
  43
  44     END