[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. See Also: INT 13H: BIOS Disk I/O BIOS Data Area ROM-BIOS Functions -♦-