blob: 11f8bd0f99fd38a65fd0719c2a31334465641cfc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2008, Intel Corporation
# 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.
#
# Module Name:
#
# LongJump.S
#
# Abstract:
#
# Implementation of _LongJump() on IA-32.
#
#------------------------------------------------------------------------------
.globl ASM_PFX(InternalLongJump)
#------------------------------------------------------------------------------
# VOID
# EFIAPI
# InternalLongJump (
# IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,
# IN UINTN Value
# );
#------------------------------------------------------------------------------
ASM_PFX(InternalLongJump):
pop %eax # skip return address
pop %edx # edx <- JumpBuffer
pop %eax # eax <- Value
movl (%edx), %ebx
movl 4(%edx), %esi
movl 8(%edx), %edi
movl 12(%edx), %ebp
movl 16(%edx), %esp
jmp *20(%edx) # restore "eip"
|