[XT] [AT]
Expects: AH    0dH
DL    drive: 80H-81H=hard disk 0-1
                                                                  
Returns: AH    BIOS disk error code if CF is set to CY
                                                                  
Info: This resets the hard disk system.  It is like INT 13H 00H, except
that it does not affect the diskette controller.

- -

INT 13H 0dH: Alternate Reset Drive