MdePkg/Library/BaseLib/Ia32/SetJump.S

   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 #   SetJump.Asm
  15 #
  16 # Abstract:
  17 #
  18 #   Implementation of SetJump() on IA-32.
  19 #
  20 #------------------------------------------------------------------------------
  21
  22 .globl _SetJump, _InternalAssertJumpBuffer
  23
  24 #------------------------------------------------------------------------------
  25 # UINTN
  26 # EFIAPI
  27 # SetJump (
  28 #   OUT     BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
  29 #   );
  30 #------------------------------------------------------------------------------
  31 _SetJump:
  32     pushl   0x4(%esp)
  33     call    _InternalAssertJumpBuffer
  34     pop     %ecx
  35     pop     %ecx
  36     movl    (%esp), %edx
  37     movl    %ebx, (%edx)
  38     movl    %esi, 4(%edx)
  39     movl    %edi, 8(%edx)
  40     movl    %ebp, 12(%edx)
  41     movl    %esp, 16(%edx)
  42     movl    %ecx, 20(%edx)
  43     xorl    %eax, %eax
  44     jmp     *%ecx