;------------------------------------------------------------------------------ | |
; | |
; Copyright (c) 2006, 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. | |
; | |
; Module Name: | |
; | |
; SetJump.Asm | |
; | |
; Abstract: | |
; | |
; Implementation of SetJump() on IA-32. | |
; | |
;------------------------------------------------------------------------------ | |
SECTION .text | |
extern ASM_PFX(InternalAssertJumpBuffer) | |
;------------------------------------------------------------------------------ | |
; UINTN | |
; EFIAPI | |
; SetJump ( | |
; OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer | |
; ); | |
;------------------------------------------------------------------------------ | |
global ASM_PFX(SetJump) | |
ASM_PFX(SetJump): | |
push DWORD [esp + 4] | |
call ASM_PFX(InternalAssertJumpBuffer) ; To validate JumpBuffer | |
pop ecx | |
pop ecx ; ecx <- return address | |
mov edx, [esp] | |
mov [edx], ebx | |
mov [edx + 4], esi | |
mov [edx + 8], edi | |
mov [edx + 12], ebp | |
mov [edx + 16], esp | |
mov [edx + 20], ecx ; eip value to restore in LongJump | |
xor eax, eax | |
jmp ecx | |