79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2002,2005,2006,2007 Free Software Foundation, Inc.
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*
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* GRUB 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 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_BOOT_MACHINE_HEADER
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#define GRUB_BOOT_MACHINE_HEADER 1
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/* The signature for bootloader. */
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#define GRUB_BOOT_MACHINE_SIGNATURE 0xaa55
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/* The offset of the start of BPB (BIOS Parameter Block). */
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#define GRUB_BOOT_MACHINE_BPB_START 0x3
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/* The offset of the end of BPB (BIOS Parameter Block). */
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#define GRUB_BOOT_MACHINE_BPB_END 0x3e
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/* The offset of the major version. */
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#define GRUB_BOOT_MACHINE_VER_MAJ 0x3e
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/* The offset of BOOT_DRIVE. */
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#define GRUB_BOOT_MACHINE_BOOT_DRIVE 0x4c
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/* The offset of KERNEL_ADDRESS. */
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#define GRUB_BOOT_MACHINE_KERNEL_ADDRESS 0x40
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/* The offset of KERNEL_SECTOR. */
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#define GRUB_BOOT_MACHINE_KERNEL_SECTOR 0x44
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/* The offset of KERNEL_SEGMENT. */
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#define GRUB_BOOT_MACHINE_KERNEL_SEGMENT 0x42
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/* The offset of BOOT_DRIVE_CHECK. */
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#define GRUB_BOOT_MACHINE_DRIVE_CHECK 0x4e
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/* The offset of a magic number used by Windows NT. */
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#define GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC 0x1b8
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/* The offset of the start of the partition table. */
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#define GRUB_BOOT_MACHINE_PART_START 0x1be
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/* The offset of the end of the partition table. */
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#define GRUB_BOOT_MACHINE_PART_END 0x1fe
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/* The stack segment. */
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#define GRUB_BOOT_MACHINE_STACK_SEG 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 GRUB_BOOT_MACHINE_BUFFER_SEG 0x7000
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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 GRUB_BOOT_MACHINE_BIOS_HD_FLAG 0x80
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/* The segment where the kernel is loaded. */
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#define GRUB_BOOT_MACHINE_KERNEL_SEG 0x800
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/* The address where the kernel is loaded. */
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#define GRUB_BOOT_MACHINE_KERNEL_ADDR (GRUB_BOOT_MACHINE_KERNEL_SEG << 4)
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/* The size of a block list used in the kernel startup code. */
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#define GRUB_BOOT_MACHINE_LIST_SIZE 12
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#endif /* ! BOOT_MACHINE_HEADER */
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