/** \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 * * 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 HDR_NAME_8050 6 /* pos. of disk name in header blk */ #define HDR_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 HDR_NAME_8250 HDR_NAME_8050 /* pos. of disk name in hdr blk */ #define HDR_ID_8250 HDR_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