/* * bootsect.inc  -  constants for assembler module for DOS boot sector * * Copyright (C) 1996-1998 Gero Kuhlmann   <gero@gkminix.han.de> * *  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 *  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. *//* *==================================================================== * * Miscellaneous definitions */#define SECT_SIZE	512		/* sector size must be 512 bytes */#define BOOT_SPC	1		/* sectors per cluster */#define BOOT_SPFAT	9		/* sectors per FAT */#define BOOT_SPTRK	18		/* sectors per track */#define BOOT_DIRNUM	224		/* number of root dir entries */#define BOOT_SECNUM	2880		/* total number of sectors */#define BOOT_FORMAT	0xf0		/* format ID for floppy disk */#define BOOT_ID		0x00		/* BIOS id of boot floppy disk */#define BOOT_OFFSET	0x7c00		/* offset for boot block in segment 0 */#define BOOT_SIG_OFS	0x7dfe		/* offset of boot signature in memory */#define BOOT_SIG	0xaa55		/* boot signature */#define DIR_SEG		0x0050		/* segment where DOS expects root dir */#define IOSYS_SEG	0x0070		/* load segment for IO.SYS */