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81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef STAGE1_HEADER
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#define STAGE1_HEADER 1
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/* Define the version numbers here, so that Stage 1 can know them. */
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#define COMPAT_VERSION_MAJOR 3
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#define COMPAT_VERSION_MINOR 2
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#define COMPAT_VERSION ((COMPAT_VERSION_MINOR << 8) \
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| COMPAT_VERSION_MAJOR)
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/* The signature for bootloader. */
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#define STAGE1_SIGNATURE 0xaa55
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/* The offset of the end of BPB (BIOS Parameter Block). */
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#define STAGE1_BPBEND 0x3e
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/* The offset of the major version. */
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#define STAGE1_VER_MAJ_OFFS 0x3e
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/* The offset of BOOT_DRIVE. */
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#define STAGE1_BOOT_DRIVE 0x40
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/* The offset of FORCE_LBA. */
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#define STAGE1_FORCE_LBA 0x41
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/* The offset of STAGE2_ADDRESS. */
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#define STAGE1_STAGE2_ADDRESS 0x42
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/* The offset of STAGE2_SECTOR. */
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#define STAGE1_STAGE2_SECTOR 0x44
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/* The offset of STAGE2_SEGMENT. */
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#define STAGE1_STAGE2_SEGMENT 0x48
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/* The offset of a magic number used by Windows NT. */
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#define STAGE1_WINDOWS_NT_MAGIC 0x1b8
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/* The offset of the start of the partition table. */
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#define STAGE1_PARTSTART 0x1be
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/* The offset of the end of the partition table. */
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#define STAGE1_PARTEND 0x1fe
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/* The stack segment. */
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#define STAGE1_STACKSEG 0x2000
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/* The segment of disk buffer. The disk buffer MUST be 32K long and
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cannot straddle a 64K boundary. */
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#define STAGE1_BUFFERSEG 0x7000
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/* The address of drive parameters. */
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#define STAGE1_DRP_ADDR 0x7f00
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/* The size of drive parameters. */
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#define STAGE1_DRP_SIZE 0x42
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/* The flag for BIOS drive number to designate a hard disk vs. a
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floppy. */
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#define STAGE1_BIOS_HD_FLAG 0x80
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#endif /* ! STAGE1_HEADER */
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