INT 13 - HARD DISK - READ SECTOR BUFFER (XT only) AH = 0Eh DL = drive number (80h = first, 81h = second hard disk) ES:BX -> buffer Return: CF set on error CF clear if successful AH = status code (see #00234) Notes: transfers controller's sector buffer. No data is read from the drive used for diagnostics only on PS/2 systems SeeAlso: AH=0Ah