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#define MSDOS_SUPER_MAGIC 0x4d44 /* MD */
#define packed __attribute__ ((packed))
#define p packed
struct msdos_boot_sector {
char jump[3] p; /* 0 - Boot strap short or near jump */
char banner[8] p; /* 3 - Name - can be used to special case
partition manager volumes */
unsigned short sector_size p; /* 11 - bytes per logical sector */
unsigned char cluster_size p; /* 13 - sectors/cluster */
unsigned short res_sect p; /* 14 - reserved sectors */
unsigned char fats p; /* 16 - number of FATs */
unsigned short dir_entries p; /* 17 - root directory entries */
unsigned short sectors p; /* 19 - number of sectors */
unsigned char media p; /* 21 - media code (unused) */
unsigned short fat_length p; /* 22 - sectors/FAT */
unsigned short secs_track p; /* 24 - sectors per track */
unsigned short heads p; /* 26 - number of heads */
unsigned long hidden p; /* 28 - hidden sectors (unused) */
unsigned long total_sect p; /* 32 - number of sectors (if sectors == 0) */
unsigned char physdrive p; /* 36 physical drive ? */
unsigned char _reserved p; /* 37 reserved */
unsigned char dos4 p; /* 38 DOS > 4.0 diskette */
unsigned long serial p; /* 39 serial number */
unsigned char label[11] p; /* 43 disk label */
unsigned char fat_type[8] p; /* 54 FAT type */
#ifdef USE_2M
unsigned char res_2m p; /* 62 reserved by 2M */
unsigned char CheckSum p; /* 63 2M checksum (not used) */
unsigned char fmt_2mf p; /* 64 2MF format version */
unsigned char wt p; /* 65 1 if write track after format */
unsigned char rate_0 p; /* 66 data transfer rate on track 0 */
unsigned char rate_any p; /* 67 data transfer rate on track<>0 */
unsigned short BootP p; /* 68 offset to boot program */
unsigned short Infp0 p; /* 70 T1: information for track 0 */
unsigned short InfpX p; /* 72 T2: information for track<>0 */
unsigned short InfTm p; /* 74 T3: track sectors size table */
unsigned char junk[126 - 76] p; /* 76 remaining data */
#else
unsigned char junk[126 - 62] p; /* 76 remaining data */
#endif
unsigned short bootid p; /* 510 should be 0xAA55 */
};
#undef p
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