Vector Basic Interpreter Basic 80, Справочное руководство

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5. a call to a USR function for which the
starting address has not yet been given
6. an improper argument to MID$, LEFT$,
RIGHT$, INP, OUT, WAIT, PEEK, POKE, TAB,
SPC, STRING$, SPACE$, INSTR, or
ON •••GOTO.
Overflow
The result of a calculation is too
large to
be represented in BASIC-80's number format.
If underflow occurs, the result is zero and
execution continues without an error.
Out of memory
A program
is too large, has too many FOR
loops or GOSUBs, too many variables, or
expressions that are too complicated.
Undefined line
A
line reference in a GOTO,
IF •••THEN •••ELSE or DELETE is
nonexistent line.
GOSUB,
to a
Subscript out of
An array element
subscript that
the array, or
subscripts.
Red~ensioned array
Two DIM statements are given for the same
array, or a DIM statement is given for an
array after the default dimension of 10 has
been established for that array.
range
is referenced either with
is outside the dimensions
with the wrong number
a
of
of
Division by zero
A division by zero is encountered in an
expression, or the operation of involution
results in zero being raised to a negative
power. Machine infinity with the sign of the
numerator is supplied as the result of the
division, or positive machine infinity is
supplied as the result of the involution, and
execution continues.
Illegal direct
A statement that is illegal in direct mode is
entered as a direct mode command.
Type mismatch
A string variable name is assigned a
numeric
value or vice versa; a function that expects
a numeric argument is given a string argument
or vice versa.