mirror of https://github.com/acidanthera/audk.git
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
|
/** @file
|
||
|
|
Implementation of _LongJump() on IA-32.
|
||
|
|
|
||
|
Copyright (c) 2006 - 2007, Intel Corporation<BR>
|
||
|
|
All rights reserved. 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.
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
__declspec (naked)
|
||
|
|
VOID
|
||
|
|
EFIAPI
|
||
|
|
InternalLongJump (
|
||
|
|
IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,
|
||
|
|
IN UINTN Value
|
||
|
|
)
|
||
|
|
{
|
||
|
|
_asm {
|
||
|
|
pop eax ; skip return address
|
||
|
|
pop edx ; edx <- JumpBuffer
|
||
|
|
pop eax ; eax <- Value
|
||
|
|
mov ebx, [edx]
|
||
|
|
mov esi, [edx + 4]
|
||
|
|
mov edi, [edx + 8]
|
||
|
|
mov ebp, [edx + 12]
|
||
|
|
mov esp, [edx + 16]
|
||
|
|
jmp dword ptr [edx + 20]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|