audk/IntelFspPkg/FspSecCore/Ia32/FspHelper.asm

33 lines
1007 B
NASM

;; @file
; Provide FSP helper function.
;
; Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
; This program and the accompanying materials
; are licensed and made available under the terms and conditions of the BSD License
; which accompanies this distribution. The full text of the license may be found at
; http://opensource.org/licenses/bsd-license.php.
;
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
;;
.586p
.model flat,C
.code
FspInfoHeaderRelativeOff PROC NEAR PRIVATE
;
; This value will be pached by the build script
;
DD 012345678h
FspInfoHeaderRelativeOff ENDP
GetFspBaseAddress PROC NEAR PUBLIC
mov eax, GetFspBaseAddress
sub eax, dword ptr [FspInfoHeaderRelativeOff]
add eax, 01Ch
mov eax, dword ptr [eax]
ret
GetFspBaseAddress ENDP
END