MdePkg/Library/BaseLib/Ia32/SetJump.S

   1 //
   2 // Include common header file for this module.
   3 //
   4 #include "CommonHeader.h"
   5
   6 #------------------------------------------------------------------------------
   7 #
   8 # Copyright (c) 2006, Intel Corporation
   9 # All rights reserved. This program and the accompanying materials
  10 # are licensed and made available under the terms and conditions of the BSD License
  11 # which accompanies this distribution.  The full text of the license may be found at
  12 # http://opensource.org/licenses/bsd-license.php
  13 #
  14 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  16 #
  17 # Module Name:
  18 #
  19 #   SetJump.Asm
  20 #
  21 # Abstract:
  22 #
  23 #   Implementation of SetJump() on IA-32.
  24 #
  25 #------------------------------------------------------------------------------
  26
  27 .globl ASM_PFX(SetJump), ASM_PFX(InternalAssertJumpBuffer)
  28
  29 #------------------------------------------------------------------------------
  30 # UINTN
  31 # EFIAPI
  32 # SetJump (
  33 #   OUT     BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
  34 #   );
  35 #------------------------------------------------------------------------------
  36 ASM_PFX(SetJump):
  37     pushl   0x4(%esp)
  38     call    ASM_PFX(InternalAssertJumpBuffer)
  39     pop     %ecx
  40     pop     %ecx
  41     movl    (%esp), %edx
  42     movl    %ebx, (%edx)
  43     movl    %esi, 4(%edx)
  44     movl    %edi, 8(%edx)
  45     movl    %ebp, 12(%edx)
  46     movl    %esp, 16(%edx)
  47     movl    %ecx, 20(%edx)
  48     xorl    %eax, %eax
  49     jmp     *%ecx