Commodore 64 Handbook page 26

generated; the request is simply ignored.
FILE NOT FOUND (62 00 OO)
The requested -file does not exist on the indicated
drive.
FILE EXISTS (63 00 00)
The -file name o - f the -file being created already
exists on the diskette.
FILE TYPE MIS-MATCH (64 00 00)
The -file type does not match the -file type in the
directory entry -for the requested -file.
NO BLOCK (65 T S)
This message occurs in conjunction with the B-A
command. It indicates that the block to be
allocated has been previously allocated. The
parameters indicate the next higher in number
available track and sector. It the parameters are
zero, then all blocks higher in number are in use.
ILLEGAL TRACK & SECTOR (66 T S)
An attempt has been made to access a sector that
does not physically exist. The track and/or
sector number speci-fied is out o - f the allowed
range for the current diskette. Unless you are
using random access files, you should never see
this error code.
ILLEGAL SYSTEM TRACK & SECTOR (67 T S)
When accessing program or data files, an attempt
has been made to access a sector that is reserved
for use by the D0S-
N0 CHANNEL (70 00 00)
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 open files.
DIR (71 00 00)
The BAM does not match the internal count. There
is a problem in the BAM allocation or the BAM has
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