INT 41 - SYSTEM DATA - HARD DISK 0 PARAMETER TABLE
Note:   the default parameter table array is located at F000h:E401h in 100%
          compatible BIOSes; the pointer may be overridden by the hard disk
          controller's BIOS to support drive formats unknown to the ROM BIOS
SeeAlso: INT 13/AH=09h,INT 1E,INT 46

Format of fixed disk parameters:
Offset  Size    Description
 00h    WORD    number of cylinders
 02h    BYTE    number of heads
 03h    WORD    starting reduced write current cylinder (XT only, 0 for others)
 05h    WORD    starting write precompensation cylinder number
 07h    BYTE    maximum ECC burst length (XT only)
 08h    BYTE    control byte
                   bits 0-2: drive option (XT only, 0 for others)
                   bit 3:    set if more than 8 heads (AT and later only)
                   bit 4:    always 0
                   bit 5:    set if manufacturer's defect map on max cylinder+1
                             (AT and later only)
                   bit 6:    disable ECC retries
                   bit 7:    disable access retries
 09h    BYTE    standard timeout (XT only, 0 for others)
 0Ah    BYTE    formatting timeout (XT and WD1002 only, 0 for others)
 0Bh    BYTE    timeout for checking drive (XT and WD1002 only, 0 for others)
 0Ch    WORD    cylinder number of landing zone (AT and later only)
 0Eh    BYTE    number of sectors per track (AT and later only)
 0Fh    BYTE    reserved

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