MdePkg/Library/BaseLib/Ia32/WriteIdtr.nasm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
   4 ; SPDX-License-Identifier: BSD-2-Clause-Patent
   5 ;
   6 ; Module Name:
   7 ;
   8 ;   WriteIdtr.Asm
   9 ;
  10 ; Abstract:
  11 ;
  12 ;   AsmWriteIdtr function
  13 ;
  14 ; Notes:
  15 ;
  16 ;------------------------------------------------------------------------------
  17
  18     SECTION .text
  19
  20 ;------------------------------------------------------------------------------
  21 ; VOID
  22 ; EFIAPI
  23 ; InternalX86WriteIdtr (
  24 ;   IN      CONST IA32_DESCRIPTOR     *Idtr
  25 ;   );
  26 ;------------------------------------------------------------------------------
  27 global ASM_PFX(InternalX86WriteIdtr)
  28 ASM_PFX(InternalX86WriteIdtr):
  29     mov     eax, [esp + 4]
  30     pushfd
  31     cli
  32     lidt    [eax]
  33     popfd
  34     ret
  35