The following are operating system error messages which can occur in DEMOS:
Missing ‘=’ between 2 filenames in REN
Missing number of 128 byte blocks in SAVE
Missing space between byte block number and name in SAVE
Missing number of 128 byte blocks in INP
Missing space between byte block number and name in INP
Missing number of 256 byte blocks in SEND
Missing CR immediately after the filename in SEND
Missing file name in EDIT
The file does not exist in ERA
The old file name does not exist in REN
The Basic file does not exist when trying to load and run the file from DEMOS
No files in the HUNTER when enter STAT .
.COM file does not exist when name is entered
Whenever an invalid file name format is specified.
The text equivalent of a basic tokenised file exceeding the available space in Ram page 0.
Excess number of 128 byte blocks in SAVE
Excess number of 256 byte blocks in SEND
Pressing the ESC key when the HUNTER is executing TYPE or INP
At any time when trying to write to a file when there is no space remaining in the file space.
Due to a file having been corrupted, e.g. an incorrect checksum for the file.