[XT] [AT] Expects: AH 10H DL drive: 80H-81H=hard disk 0-1 ────────────────────────────────────────────────────────────────── Returns: AH BIOS disk error code if CF is set to CY ────────────────────────────────────────────────────────────────── Info: This determines if the drive specified in DL is ready and can process a command. See Also: INT 13H: BIOS Disk I/O BIOS Data Area ROM-BIOS Functions -♦-