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X-Hacker.org- BIOS ref. - <b>0040h:0041h last diskette drive operation status</b> http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide] 
0040h:0041h           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 

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