;------------------------------------------------------------------------------ ; ; 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. ; ;------------------------------------------------------------------------------ .386 .model flat,C .code InternalAssertJumpBuffer PROTO C ;------------------------------------------------------------------------------ ; UINTN ; EFIAPI ; SetJump ( ; OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer ; ); ;------------------------------------------------------------------------------ SetJump PROC push DWORD [esp + 4] call 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 SetJump ENDP END