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878ddf1f | 1 | ;------------------------------------------------------------------------------\r |
2 | ;\r | |
3 | ; Copyright (c) 2006, Intel Corporation\r | |
4 | ; All rights reserved. This program and the accompanying materials\r | |
5 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
6 | ; which accompanies this distribution. The full text of the license may be found at\r | |
7 | ; http://opensource.org/licenses/bsd-license.php\r | |
8 | ;\r | |
9 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | ;\r | |
12 | ; Module Name:\r | |
13 | ;\r | |
14 | ; LongJump.Asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
e513625f | 18 | ; Implementation of _LongJump() on IA-32.\r |
878ddf1f | 19 | ;\r |
20 | ;------------------------------------------------------------------------------\r | |
21 | \r | |
22 | .386\r | |
4cbd2175 | 23 | .model flat,C\r |
878ddf1f | 24 | .code\r |
25 | \r | |
3f566587 | 26 | ;------------------------------------------------------------------------------\r |
27 | ; VOID\r | |
28 | ; EFIAPI\r | |
29 | ; InternalLongJump (\r | |
30 | ; IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r | |
31 | ; IN UINTN Value\r | |
32 | ; );\r | |
33 | ;------------------------------------------------------------------------------\r | |
15176e05 | 34 | InternalLongJump PROC\r |
3f566587 | 35 | pop eax ; skip return address\r |
36 | pop edx ; edx <- JumpBuffer\r | |
37 | pop eax ; eax <- Value\r | |
878ddf1f | 38 | mov ebx, [edx]\r |
39 | mov esi, [edx + 4]\r | |
40 | mov edi, [edx + 8]\r | |
41 | mov ebp, [edx + 12]\r | |
42 | mov esp, [edx + 16]\r | |
a9a812a0 | 43 | jmp dword ptr [edx + 20] ; restore "eip"\r |
15176e05 | 44 | InternalLongJump ENDP\r |
878ddf1f | 45 | \r |
46 | END\r |