grub/normal/i386/setjmp.S
okuji 4b13b216f4 2004-04-04 Yoshinori K. Okuji <okuji@enbug.org>
All symbols prefixed with PUPA_ and pupa_ are renamed to GRUB_
	and grub_, respectively. Because the conversion is trivial and
	mechanical, I omit the details here. Please refer to the CVS
	if you need more information.
2004-04-04 13:46:03 +00:00

57 lines
1.4 KiB
ArmAsm

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <grub/symbol.h>
.file "setjmp.S"
.text
/*
* int grub_setjmp (grub_jmp_buf env)
*/
FUNCTION(grub_setjmp)
movl %ebx, 0(%eax) /* EBX */
movl %esi, 4(%eax) /* ESI */
movl %edi, 8(%eax) /* EDI */
movl %ebp, 12(%eax) /* EBP */
popl %ecx
movl %esp, 16(%eax) /* ESP */
movl %ecx, 20(%eax) /* EIP */
xorl %eax, %eax
jmp *%ecx
/*
* int grub_longjmp (grub_jmp_buf env, int val)
*/
FUNCTION(grub_longjmp)
movl 0(%eax), %ebx
movl 4(%eax), %esi
movl 8(%eax), %edi
movl 12(%eax), %ebp
movl 16(%eax), %esp
movl 20(%eax), %ecx
movl %edx, %eax
testl %eax, %eax
jnz 1f
incl %eax
1: jmp *%ecx