dos33fsprogs/dos33.h

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2003-05-01 20:53:00 +00:00
/* For now hard-coded */
/* Could be made dynamic if we want to be useful */
/* On dos3.2 disks, or larger filesystems */
#define TRACKS_PER_DISK 0x23
#define SECTORS_PER_TRACK 0x10
#define BYTES_PER_SECTOR 0x100
#define VTOC_TRACK 0x11
#define VTOC_SECTOR 0x00
/* VTOC Values */
#define VTOC_CATALOG_T 0x1
#define VTOC_CATALOG_S 0x2
#define VTOC_DOS_RELEASE 0x3
#define VTOC_DISK_VOLUME 0x6
#define VTOC_MAX_TS_PAIRS 0x27
#define VTOC_LAST_ALLOC_T 0x30
#define VTOC_ALLOC_DIRECT 0x31
#define VTOC_NUM_TRACKS 0x34
#define VTOC_S_PER_TRACK 0x35
#define VTOC_BYTES_PER_SL 0x36
#define VTOC_BYTES_PER_SH 0x37
#define VTOC_FREE_BITMAPS 0x38
/* CATALOG_VALUES */
#define CATALOG_NEXT_T 0x01
#define CATALOG_NEXT_S 0x02
#define CATALOG_FILE_LIST 0x0b
#define CATALOG_ENTRY_SIZE 0x23
/* CATALOG ENTRY */
#define FILE_TS_LIST_T 0x0
#define FILE_TS_LIST_S 0x1
#define FILE_TYPE 0x2
#define FILE_NAME 0x3
#define FILE_SIZE_L 0x21
#define FILE_SIZE_H 0x22
#define FILE_NAME_SIZE 0x1e
/* TSL */
#define TSL_NEXT_TRACK 0x1
#define TSL_NEXT_SECTOR 0x2
#define TSL_OFFSET_L 0x5
#define TSL_OFFSET_H 0x6
#define TSL_LIST 0xC
#define TSL_ENTRY_SIZE 0x2
#define TSL_MAX_NUMBER 122
/* Helper Macros */
#define TS_TO_INT(__x,__y) ((((int)__x)<<8)+__y)
#define DISK_OFFSET(__track,__sector) ((((__track)*SECTORS_PER_TRACK)+(__sector))*BYTES_PER_SECTOR)