0:441h                   Last Diskette Drive Operation Status

Length: 1 byte

Holds the status of the last diskette drive operation.

               Value           Last Diskette Drive Operation
00h            No error
01h            Invalid command
02h            Address mark not found
03h            Attempt to write on write-protected disk
04h            Sector not found
06h            Diskette change line active
08h            DMA overrun
09h            Attempt to DMA across a 64K boundary
0Ch            Media type not found
10h            CRC data error
20h            Controller failure
40h            Seek failure
80h            Drive not ready

Use INT 13h, Service 01h, to obtain this information.

See also: INT 13h, 01h

0:441h Last Diskette Drive Operation Status