Int 13 Fn 09  - Hard Disk - Initialize Controller With Drive Parameters (  [B]

   AH = 09h
   DL = drive (80h for first, 81h for second)

Return: CF clear if successful
   CF set on error
   AH = status (see AH=01h)

Notes: on the PC and XT, this function uses the parameter table pointed at by
     INT 41
   on the AT and later, this function uses the parameter table pointed at
     by INT 41 if DL=80h, and the parameter table pointed at by INT 46 if
     DL=81h

See Also: INT 41,INT 46