INT 4D - TI Professional PCIBM PC - DISK - VERIFY DISK SECTOR CRC(S) AH = 04h AL = number of sectors to verify (must be nonzero) CH = low eight bits of cylinder number CL = sector number 1-63 (bits 0-5) high two bits of cylinder (bits 6-7, hard disk only) DH = head number DL = drive number (bit 7 set for hard disk) ES:BX -> data buffer Return: CF set on error if AH = 11h (corrected ECC error), AL = burst length CF clear if successful AH = status (see #00234 at INT 13/AH=01h) AL = number of sectors transferred ES:BX -> buffer for last sector processed (including one with errors) Note: even though no data is transferred, ES:BX must still be valid SeeAlso: AH=00h,AH=01h,AH=02h,AH=06h,INT 13/AH=04h