INT 13 - FIXED DISK - FORMAT TRACK
        AH = 05h
        AL = interleave value (XT-type controllers only)
        ES:BX -> 512-byte format buffer
                the first 2*(sectors/track) bytes contain F,N for each sector
                   F = 00h for good sector, 80h for bad sector
                   N = sector number
        CH = cylinder number (bits 8,9 in high bits of CL)
        CL = high bits of cylinder number (bits 7,6)
        DH = head
        DL = drive
Return: AH = status code (see AH=01h)
Notes:  AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
          than 1024 cylinders by placing bits 10 and 11 of the cylinder number
          into bits 6 and 7 of DH
        for XT-type controllers on an AT or higher, AH=0Fh should be called
          first
        the IBM AT BIOS and many other BIOSes use only the low four bits of
          DH (head number) since the WD-1003 controller which is the standard
          AT controller (and the controller that IDE emulates) only supports
          16 heads
SeeAlso: AH=05h"FLOPPY",AH=06h"FIXED",AH=07h"FIXED",AH=0Fh,AH=18h,AH=1Ah

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