audk/OldMdePkg/Library/BaseLib/Ia32/SetJump.c

45 lines
1.1 KiB
C

/** @file
Implementation of SetJump() 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.
**/
VOID
EFIAPI
InternalAssertJumpBuffer (
IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer
);
_declspec (naked)
UINTN
EFIAPI
SetJump (
OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer
)
{
_asm {
push [esp + 4]
call InternalAssertJumpBuffer
pop ecx
pop ecx
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
xor eax, eax
jmp ecx
}
}