340 The VIC 20
User
Guide
messages by carefully scrutinizing newly entered program lines before
running the program.
TYPE MISMATCH
An attempt
was
made to enter a string into a numeric variable or vice
versa, or an incorrect type
was
given as a function parameter.
Change the offending item to the correct type.
UNDEF'D FUNCTION
Reference was made to a user-defined function that has not previously
been defined by appearing in a
DEF
FN statement. The definition must
precede the function reference.
Define the function. Place
DEF
FN statements near the beginning
of the program.
UNDEF'D STATEMENT
An attempt
was
made to branch to a nonexistent line number.
Insert a statement with the necessary line number or branch to
another line number.
VERIFY
ERROR
The program in memory and the specified
file
do not compare. This
message
is
issued in connection with the VERIFY command.
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