Basic error messages
BAD DATA String data was received from an open file, but the pro
gram was expecting numeric data.
BAD SUBSCRIPT The program was trying to reference an elem ent of
an array whose number is outside of the range specified in the DIM
statement.
CAN'T CONTINUE The CONT comm and will not work, either because
the program was never RUN, there has been an error, or a line has
been edited.
DEVICE NOT PRESENT The required I/O device was not available for
an OPEN, CLOSE, CMD, PRINT#, INPUT#, or GET#.
DIVISION BY ZERO Division by zero is a m athem atical oddity and not
allow ed.
EXTRA IGNORED Too many items of data were typed in response to
an INPUT statement. Only the first few items were accepted.
FILE NOT FOUND If you were looking for a file on tape, and END-OF-
TAPE m arker was found. If you were looking on disk, no file w ith that
name exists.
FILE NOT OPEN The file specified in a CLOSE, CMD, PRINT#, INPUT#,
or GET#, must first be OPENed.
FILE OPEN An attem pt was made to open a file using the number of
an already open file.
FORMULA TOO COMPLEX The string expression being evaluated
should be split into at least tw o parts for the system to work with.
ILLEGAL DIRECT The INPUT statem ent can only be used within a pro
gram , and not in direct mode.
ILLEGAL QUANTITY A num ber used as the argum ent of a function or
statem ent is out of the allow able range.
LOAD There is a problem with the program on tape.
NEXT WITHOUT FOR This is caused by either incorrectly nesting loops
or having a variable name in a NEXT statem ent that doesn't correspond
with one in a FOR statement.
NOT INPUT FILE An attem pt was made to INPUT or GET data from a
file which was specified to be for output only.
NOT OUTPUT FILE An attem pt was made to PRINT data to a file which
was specified as input only.
OUT OF DATA A READ statem ent was executed but there is no data
left unREAD in a DATA statem ent.
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