X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 13 - fixed disk

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INT 13 - FIXED DISK - FORMAT TRACK
        AH = 05h
        AL = interleave value (XT only)
        ES:BX = 512-byte format buffer
                the first 2*(sectors/track) bytes contain F,N for each sector
                   F = 00 for good sector, 80h for bad sector
                   N = sector number
        CH = cylinder number (bits 8,9 in high bits of CL)
        CL = sector number (01h to number of sectors per track for drive)
        DH = head
        DL = drive
Return: AH = status code (see AH=01h)
Notes:  AWARD AT BIOS extended to handle more than 1024 cylinders by placing
          bits 10 and 11 of the cylinder number into bits 6 and 7 of DH
        apparently, the AMI BIOS also follows this convention
SeeAlso: AH=06h,07h,1Ah

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