mirror of
https://git.savannah.gnu.org/git/grub.git
synced 2026-10-26 09:10:53 +00:00
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 1999 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.
|
|
*/
|
|
|
|
#ifndef STAGE1_HEADER
|
|
#define STAGE1_HEADER 1
|
|
|
|
|
|
/* Define the version numbers here, so that Stage 1 can know them. */
|
|
#define COMPAT_VERSION_MAJOR 2
|
|
#define COMPAT_VERSION_MINOR 2
|
|
#define COMPAT_VERSION ((COMPAT_VERSION_MINOR << 8) \
|
|
| COMPAT_VERSION_MAJOR)
|
|
|
|
/* The signature for bootloader. */
|
|
#define STAGE1_SIGNATURE 0xaa55
|
|
|
|
/* The offset of the end of BPB (BIOS Parameter Block). */
|
|
#define STAGE1_BPBEND 0x3e
|
|
|
|
/* The offset of FIRSTLIST. */
|
|
#define STAGE1_FIRSTLIST 0x1b5
|
|
|
|
/* The offset of the major version. */
|
|
#define STAGE1_VER_MAJ_OFFS 0x1bc
|
|
|
|
/* The offset of the install segment. */
|
|
#define STAGE1_INSTALLSEG 0x1ba
|
|
|
|
/* The offset of the install address. */
|
|
#define STAGE1_INSTALLADDR 0x1b8
|
|
|
|
/* The offset of the start of the partition table. */
|
|
#define STAGE1_PARTSTART 0x1be
|
|
|
|
/* The offset of the end of the partition table. */
|
|
#define STAGE1_PARTEND 0x1fe
|
|
|
|
/* The size of extra data parameters. */
|
|
#define STAGE1_MINPARAMSIZE 13
|
|
|
|
/* The size of sector list. */
|
|
#define STAGE1_LISTSIZE 8
|
|
|
|
/* The stack segment. */
|
|
#define STAGE1_STACKSEG 0x2000
|
|
|
|
/* The segment of disk buffer. The disk buffer MUST be 32K long and
|
|
cannot straddle a 64K boundary. */
|
|
#define STAGE1_BUFFERSEG 0x7000
|
|
|
|
/* The address of drive parameters. */
|
|
#define STAGE1_DRP_ADDR 0x7f00
|
|
|
|
/* The size of drive parameters. */
|
|
#define STAGE1_DRP_SIZE 0x42
|
|
|
|
/* The flag for BIOS drive number to designate a hard disk vs. a
|
|
floppy. */
|
|
#define STAGE1_BIOS_HD_FLAG 0x80
|
|
|
|
/* Stage 1 identifiers */
|
|
/* The offset of the id. */
|
|
#define STAGE1_ID_OFFSET STAGE1_BPBEND
|
|
|
|
/* The id for the ``normal'' stage1. */
|
|
#define STAGE1_ID_CHS 0x10
|
|
|
|
/* The id for the LBA version of stage1. */
|
|
#define STAGE1_ID_LBA 0x20
|
|
|
|
|
|
#endif /* ! STAGE1_HEADER */
|