User`s manual

52:
FILE TOO LARGE
Record position within a relative file indicates that disk overflow will
result.
60: WRITE FILE OPEN
This message is generated when a write file that has not been closed is
being opened for reading.
61:
FILE NOT OPEN
This message is generated when a file is being accessed that has not been
opened in the DOS. Sometimes, in this case, a message is not generated;
the request is simply ignored.
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FILE NOT FOUND
The requested file does not exist on the indicated drive.
63:
FILE EXISTS
The file name of the file being created already exists on the diskette.
64:
FILE TYPE MISMATCH
The file type does not match the file type in the directory entry for the
requested file.
65:
NO BLOCK
I
This message occurs in conju»ction with the B-A command. It indicates
that the block to be allocated has been previously allocated. The
parameters indicate the track and sector available with the next highest
number. If the parameters are zero (0), then all blocks higher in number
are in use.
66:
ILLEGAL TRACK AND SECTOR
The DOS has attempted to accessa track or sector which does not exist in
the format being used. This may indicate a problem reading the pointer to
the next block.
67:
ILLEGAL SYSTEM T OR S
This special error message indicates an illegal system track or sector.
70:
NO CHANNEL(available)
The requested channel is not available, or all channels are in use. A
maximum of five sequential files may be opened at one time to the DOS.
Direct access channels may have six opened files.
71: DIRECTORY ERROR
The BAM does not match the internal count. There is a problem in the
BAM allocation or the BAM has been overwritten in DOS memory. To
correct this problem, reinitialize the diskette to restore the BAM in
memory. Some active files may be terminated by the corrective action.
NOTE: BAM =Block Availability Map
45