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/** \file src/diskconstants.h
*
* \brief Disk drive specifications
*
* For customized disks, the values must fit beteen the NUM_ and MAX_
* limits. Do not change the NUM_ values, as they define the standard
* disk geometry.
*/
/*
* Written by
* Andreas Boose <viceteam@t-online.de>
*
* This file is part of VICE, the Versatile Commodore Emulator.
* See README for copyright notice.
*
* 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., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA.
*
*/
#ifndef VICE_DISKCONSTANTS_H
#define VICE_DISKCONSTANTS_H
/*
* CBM 1541 constants
*/
#define NUM_TRACKS_1541 35 /**< number of tracks on a standard 1541
floppy */
#define NUM_BLOCKS_1541 683 /**< number of blocks on a standard 1541
floppy (664 free) */
#define EXT_TRACKS_1541 40 /**< number of tracks in an extended 1541
floppy, used by SpeedDOS,
ProLogic DOS, etc */
#define EXT_BLOCKS_1541 768 /**< number of blocks on an extended 1541
floppy */
#define MAX_TRACKS_1541 42 /**< maximum number of accessible tracks for
a 1541 drive: not all 1541 drives can
do this */
#define MAX_BLOCKS_1541 802 /**< maximum number of blocks for a 1541
floppy, using 42 tracks */
#define DIR_TRACK_1541 18 /**< 1541 directory track number */
#define DIR_SECTOR_1541 1 /**< 1541 directory sector number */
#define BAM_TRACK_1541 18 /**< 1541 BAM track number */
#define BAM_SECTOR_1541 0 /**< 1541 BAM sector number */
#define BAM_NAME_1541 144 /**< offset in BAM of the disk name in
PETSCII, 16 bytes, padded with 0xa0 */
#define BAM_ID_1541 162 /**< offset in BAM of the disk ID in
PETSCII, 2 bytes for standard DOS */
#define BAM_EXT_BIT_MAP_1541 192 /**< BAM bitmap entries for tracks 36-40 for
extended floppies, only valid for
SpeedDOS */
/* CBM 2040 constants */
#define NUM_TRACKS_2040 35 /**< number of tracks on a 2040 floppy */
#define NUM_BLOCKS_2040 690 /**< number of blocks on a 2040 floppy
(670 free */
#define MAX_TRACKS_2040 35 /**< maximum number of tracks on a 2040
floppy */
#define MAX_BLOCKS_2040 690 /**< maximum number of blocks on a 2040
floppy */
#define DIR_TRACK_2040 18 /**< directory track number */
#define DIR_SECTOR_2040 1 /**< directory sector number */
#define BAM_TRACK_2040 18 /**< BAM track number */
#define BAM_SECTOR_2040 0 /**< BAM sector number */
#define BAM_NAME_2040 144 /**< offset in BAM of the disk name in
PETSCII, 16 bytes, padded with 0xa0 */
#define BAM_ID_2040 162 /**< offset in BAM of the disk ID in
PETSCII, 2 bytes */
#define BAM_EXT_BIT_MAP_2040 192 /**< BAM bitmap entries for tracks 36-40 for
extended floppies (did these exist?) */
/* CBM 1571 constants, these constants are for a double-sided 1571
*
* FIXME: constants for the second BAM at (53,0) are missing
* FIXME: extra constants for 80-track images are missing
*/
#define NUM_TRACKS_1571 70 /**< number of tracks on a 1571 floppy */
#define NUM_BLOCKS_1571 1366 /**< number of blocks on a 1571 floppy
(1328 blocks free) */
#define MAX_TRACKS_1571 70 /**< maximum number of tracks on a 1571
floppy */
#define MAX_BLOCKS_1571 1366 /**< maximum number of blocks on a 1571
floppy */
#define DIR_TRACK_1571 18 /**< directory track number */
#define DIR_SECTOR_1571 1 /**< directory sector number */
#define BAM_TRACK_1571 18 /**< BAM track number (side 1 BAM) */
#define BAM_SECTOR_1571 0 /**< BAM sector number (side 1 BAM) */
#define BAM_NAME_1571 144 /**< offset in BAM of the disk name in
PETSCII, 16 bytes, padded with 0xa0 */
#define BAM_ID_1571 162 /**< offset in BAM of the disk ID in
PETSCII, 2 bytes */
#define BAM_EXT_BIT_MAP_1571 221 /**< BAM bitmap entries for tracks 36-40 for
extended floppies (did these exist?) */
/* CBM 1581 constants */
#define NUM_TRACKS_1581 80 /**< number of tracks on a 1581 diskette */
#define NUM_SECTORS_1581 40 /**< number of sectors per track */
#define NUM_BLOCKS_1581 3200 /**< number of blocks on a 1581 diskette
(3160 blocks free) */
#define MAX_TRACKS_1581 83 /**< maximum number of tracks on a 1581
diskette */
#define MAX_BLOCKS_1581 3320 /**< maximum number of blocks on a 1581
diskette when using 83 tracks */
#define DIR_TRACK_1581 40 /**< directory track number */
#define DIR_SECTOR_1581 3 /**< directory sector number */
#define BAM_TRACK_1581 40 /**< BAM track number */
#define BAM_SECTOR_1581 0 /**< BAM first sector number (the BAM of a
1581 diskette is three sectors) */
#define BAM_NAME_1581 4 /**< offset in BAM of disk name in PETSCII,
16 bytes, padded with 0xa0 */
#define BAM_ID_1581 22 /**< offset in BAM of disk ID in PETSCII,
2 bytes */
/* FIXME: I'm not really familiar with the following drives, so documentation
* of these constants will have to wait.
*/
/* CBM 8050 constants */
#define NUM_TRACKS_8050 77
#define NUM_BLOCKS_8050 2083 /* 2052 free */
#define MAX_TRACKS_8050 77
#define MAX_BLOCKS_8050 2083
#define HDR_TRACK_8050 DIR_TRACK_8050 /* block w/disk name */
#define HDR_SECTOR_8050 0 /* block w/disk name */
#define BAM_TRACK_8050 38
#define BAM_SECTOR_8050 0
#define BAM_NAME_8050 6 /* pos. of disk name in header blk */
#define BAM_ID_8050 24 /* pos. of disk id in header blk */
#define DIR_TRACK_8050 39
#define DIR_SECTOR_8050 1
#define NUM_TRACKS_8250 154
#define NUM_BLOCKS_8250 4166 /* 4133 free */
#define MAX_TRACKS_8250 154
#define MAX_BLOCKS_8250 4166
#define HDR_TRACK_8250 HDR_TRACK_8050
#define HDR_SECTOR_8250 HDR_SECTOR_8050
#define BAM_TRACK_8250 BAM_TRACK_8050
#define BAM_SECTOR_8250 BAM_SECTOR_8050
#define BAM_NAME_8250 BAM_NAME_8050 /* pos. of disk name in hdr blk */
#define BAM_ID_8250 BAM_ID_8050 /* pos. of disk id in hdr blk */
#define DIR_TRACK_8250 DIR_TRACK_8050
#define DIR_SECTOR_8250 DIR_SECTOR_8050
#define MAX_TRACKS_9000 152 /* for now */
#define BAM_NAME_9000 6
#define BAM_ID_9000 24
#define NUM_TRACKS_1000 13
#define NUM_BLOCKS_1000 3240
#define NUM_SYS_SECTORS_1000 168 /* on system partition track */
#define MAX_TRACKS_1000 13
#define MAX_BLOCKS_1000 3240
#define NUM_TRACKS_2000 26
#define NUM_BLOCKS_2000 6480
#define NUM_SYS_SECTORS_2000 80 /* on system partition track */
#define MAX_TRACKS_2000 26
#define MAX_BLOCKS_2000 6480
#define NUM_TRACKS_4000 51
#define NUM_BLOCKS_4000 12960
#define NUM_SYS_SECTORS_4000 160 /* on system partition track */
#define MAX_TRACKS_4000 51
#define MAX_BLOCKS_4000 12960
#define DIR_TRACK_NP 1
#define DIR_SECTOR_NP 34
#define BAM_TRACK_NP 1
#define BAM_SECTOR_NP 1
#define BAM_NAME_NP 4
#define BAM_ID_NP 22
#define DIR_TRACK_4000 1
#define DIR_SECTOR_4000 34
#define BAM_TRACK_4000 1
#define BAM_SECTOR_4000 1
#define BAM_NAME_4000 4
#define BAM_ID_4000 22
#endif
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