1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4 ; This program and the accompanying materials 5 ; are licensed and made available under the terms and conditions of the BSD License 6 ; which accompanies this distribution. The full text of the license may be found at 7 ; http://opensource.org/licenses/bsd-license.php. 8 ; 9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 ; 12 ; Module Name: 13 ; 14 ; SetJump.Asm 15 ; 16 ; Abstract: 17 ; 18 ; Implementation of SetJump() on IA-32. 19 ; 20 ;------------------------------------------------------------------------------ 21 22 .386 23 .model flat,C 24 .code 25 26 InternalAssertJumpBuffer PROTO C 27 28 ;------------------------------------------------------------------------------ 29 ; UINTN 30 ; EFIAPI 31 ; SetJump ( 32 ; OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer 33 ; ); 34 ;------------------------------------------------------------------------------ 35 SetJump PROC 36 push DWORD [esp + 4] 37 call InternalAssertJumpBuffer ; To validate JumpBuffer 38 pop ecx 39 pop ecx ; ecx <- return address 40 mov edx, [esp] 41 mov [edx], ebx 42 mov [edx + 4], esi 43 mov [edx + 8], edi 44 mov [edx + 12], ebp 45 mov [edx + 16], esp 46 mov [edx + 20], ecx ; eip value to restore in LongJump 47 xor eax, eax 48 jmp ecx 49 SetJump ENDP 50 51 END 52
