UefiCpuPkg/Universal/Acpi/S3Resume2Pei/Ia32/AsmFuncs.S

   1 #------------------------------------------------------------------------------
   2 #*
   3 #*   Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
   4 #*   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 #*    AsmFuncs.S
  13 #*
  14 #*   Abstract:
  15 #*
  16 #*     Assembly function to set segment selectors.
  17 #
  18 #------------------------------------------------------------------------------
  19
  20 .text
  21
  22 #------------------------------------------------------------------------------
  23 #
  24 # VOID
  25 # EFIAPI
  26 # AsmSetDataSelectors (
  27 #   IN UINT16   SelectorValue
  28 #   );
  29 #------------------------------------------------------------------------------
  30 ASM_GLOBAL ASM_PFX(AsmSetDataSelectors)
  31 ASM_PFX(AsmSetDataSelectors):
  32     movl    4(%esp),  %eax
  33     movw    %ax, %ss
  34     movw    %ax, %ds
  35     movw    %ax, %es
  36     movw    %ax, %fs
  37     movw    %ax, %gs
  38     ret