MdeModulePkg/Universal/EbcDxe/Ia32/EbcLowLevel.S

   1 #/** @file
   2 #
   3 #    Low level IA32 specific EBC support routines.
   4 #
   5 #  Copyright (c) 2007 - 2008, Intel Corporation. <BR>
   6 #  All rights reserved. This program and the accompanying materials
   7 #  are licensed and made available under the terms and conditions of the BSD License
   8 #  which accompanies this distribution.  The full text of the license may be found at
   9 #  http://opensource.org/licenses/bsd-license.php
  10 #
  11 #  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 #
  14 #**/
  15
  16 ASM_GLOBAL ASM_PFX(CopyMem)
  17
  18 ASM_GLOBAL ASM_PFX(EbcLLCALLEXNative)
  19 ASM_PFX(EbcLLCALLEXNative):
  20          push   %ebp
  21          push   %ebx
  22          mov    %esp,%ebp
  23          mov    0xc(%esp),%ecx
  24          mov    0x14(%esp),%eax
  25          mov    0x10(%esp),%edx
  26          sub    %edx,%eax
  27          sub    %eax,%esp
  28          mov    %esp,%ebx
  29          push   %ecx
  30          push   %eax
  31          push   %edx
  32          push   %ebx
  33          call   ASM_PFX(CopyMem)
  34          pop    %eax
  35          pop    %eax
  36          pop    %eax
  37          pop    %ecx
  38          call   *%ecx
  39          mov    %ebp,%esp
  40          mov    %ebp,%esp
  41          pop    %ebx
  42          pop    %ebp
  43          ret
  44
  45 ASM_GLOBAL ASM_PFX(EbcLLGetEbcEntryPoint)
  46 ASM_PFX(EbcLLGetEbcEntryPoint):
  47         ret
  48
  49 ASM_GLOBAL ASM_PFX(EbcLLGetStackPointer)
  50 ASM_PFX(EbcLLGetStackPointer):
  51         mov    %esp,%eax
  52         add    $0x4,%eax
  53         ret
  54
  55 ASM_GLOBAL ASM_PFX(EbcLLGetReturnValue)
  56 ASM_PFX(EbcLLGetReturnValue):
  57         ret