IntelFspPkg/FspSecCore/Ia32/FspHelper.asm

   1 ;; @file
   2 ;  Provide FSP helper function.
   3 ;
   4 ; Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
   5 ; This program and the accompanying materials
   6 ; are licensed and made available under the terms and conditions of the BSD License
   7 ; which accompanies this distribution.  The full text of the license may be found at
   8 ; http://opensource.org/licenses/bsd-license.php.
   9 ;
  10 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 ;;
  13
  14     .586p
  15     .model  flat,C
  16     .code
  17
  18 FspInfoHeaderRelativeOff    PROC      NEAR    PUBLIC
  19    ;
  20    ; This value will be pached by the build script
  21    ;
  22    DD    012345678h
  23 FspInfoHeaderRelativeOff    ENDP
  24
  25 GetFspBaseAddress           PROC      NEAR    PUBLIC
  26    mov   eax, GetFspBaseAddress
  27    sub   eax, dword ptr [FspInfoHeaderRelativeOff]
  28    add   eax, 01Ch
  29    mov   eax, dword ptr [eax]
  30    ret
  31 GetFspBaseAddress           ENDP
  32
  33 GetFspInfoHdr               PROC      NEAR    PUBLIC
  34    mov   eax, GetFspBaseAddress
  35    sub   eax, dword ptr [FspInfoHeaderRelativeOff]
  36    ret
  37 GetFspInfoHdr               ENDP
  38
  39      END