Click above to get retro games delivered to your door ever month!

INT 13h,  09h (9)        Initialize Fixed Disk Tables              fixed disk

    Initializes a fixed disk using parameter tables.

       On entry:      AH         09h
                      DL         Drive number (Bit 7 must be set)

       Returns:       AH         Status of operation (see Service 01h)
                      CF         Set if error; otherwise cleared

    INT 41h points to a fixed disk parameter table. On some machines, INT
    46h also contains a fixed disk parameter table for a second drive.
    These tables are used by this service to initialize drives. Service
    09h will cause the the BIOS to adjust properly to any fixed disk
    parameters that have been changed in the fixed disk parameter table.

       Notes:         The behavior of this service depends on the type of
                      machine it is executed on:

       XT             If the drive number is a legal value (80h <= DL <=
                      87h), then both drives 0 and 1 are initialized. INT
                      41h actually points to four tables. The table used
                      for the drive number is determined by the setting of
                      switches on the fixed disk drive adapter. If the
                      initialization of drive 0 fails, drive 1
                      initialization is not attempted.

       AT and XT-286  If DL is 80h, then drive 0 is initialized via INT
                      41h. If DL is 81h, then drive 1 is initialized via
                      INT 46h.

                      If an error is encountered, use Service 0h to reset
                      the drive and retry the operation.

                      For the AT, XT-286, and PC Convertible, the BIOS
                      executes INT 15h, Service 90h (Device Busy), for the
                      diskette (Type = 01h) and the fixed disk (Type =
                      00h) prior to waiting for the interrupt. INT 15h,
                      Service 91h (Interrupt Complete), is executed upon
                      completion.