EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/Ia32/LongJump.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 #   LongJump.Asm
  15 #
  16 # Abstract:
  17 #
  18 #   Implementation of _LongJump() on IA-32.
  19 #
  20 #------------------------------------------------------------------------------
  21
  22 #include <EdkIIGlueBase.h>
  23
  24 .globl ASM_PFX(InternalLongJump)
  25
  26 #------------------------------------------------------------------------------
  27 # VOID
  28 # EFIAPI
  29 # InternalLongJump (
  30 #   IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer,
  31 #   IN      UINTN                     Value
  32 #   );
  33 #------------------------------------------------------------------------------
  34 ASM_PFX(InternalLongJump):
  35     pop     %eax
  36     pop     %edx
  37     pop     %eax
  38     movl    (%edx), %ebx
  39     movl    4(%edx), %esi
  40     movl    8(%edx), %edi
  41     movl    12(%edx), %ebp
  42     movl    16(%edx), %esp
  43     jmp     *20(%edx)