reactos/freeldr/freeldr/boot.S

47 lines
1.1 KiB
ArmAsm

/*
* FreeLoader
* Copyright (C) 1999, 2000, 2001 Brian Palmer <brianp@sginet.com>
*
* 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.
*/
.text
.code16
#define ASM
#include "asmcode.h"
#include "multiboot.h"
.code32
EXTERN(_JumpToBootCode)
call switch_to_real
.code16
/* Set the boot drive */
movb (_BootDrive),%dl
ljmpl $0x0000,$0x7C00
.code32
EXTERN(_JumpToLinuxBootCode)
call switch_to_real
.code16
/* Set the boot drive */
movb (_BootDrive),%dl
ljmpl $0x0200,$0x9000