Chapter
12
I
Error Messages
Number
69
70
71
72
73
74
75
76
77
Message
Communication buffer overflow
Not enough space has been reserved for the commu-
nications buffer.
Disk write protected
Occurs when an attempt
is
made to write to a
diskette that
is
write-protected. Use an ON ERROR
GOTO statement to detect this situation and re-
quest user action.
Disk not Ready
Occurs when the diskette drive door
is
open or
a
diskette
is
not in the drive. Use an ON ERROR
GOTO statement to recover.
Disk media error
Occurs when the FDC controller detects a hardware
or media fault. This usually indicates harmed me-
dia. Copy any existing files to a new diskette and
re-format the damaged diskette. FORMAT flags any
bad tracks and records them in a special file. The
remainder of the diskette is then usable.
Advanced Feature
Rename across disks
An attempt was made to rename a file with a new
drive designation. BASIC does not allow this.
PatWFile Access
Error
During an OPEN, MKDIR, CHDIR, or RMDIR op-
eration, MS-DOS was unable to make a correct
Path-to-Filename connection.
Path not found
The OPEN, MKDIR, CHDIR, or RMDIR statement
references
a
path that does not exist.
Deadlock
372
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