Vtech PreComputer Power Pad Plus User Manual - Page 78

Athe Error Messages

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THE ERROR MESSAGES CANNOT CONTINUE An attempt is made to continue a program that: 1. Has halted due to an error. 2. Has been modified during a break in execution, or 3. Does not exist. 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. EXTRA IGNORED More than one parameter is entered to 'INPUT' command. ILLEGAL DIRECT A statement that is illegal in direct mode command. Example: INPUT ILLEGAL FUNCTION CALL A parameter that is out of range is passed to a math or string function. This error may also occur as the result of: 1. A negative or unreasonably large subscript. 2. A negative or zero argument with LOG. 3. A negative argument to SQR. 4. A negative mantissa with a non-integer exponent. 5. An improper argument to MID$, LEFT$, RIGHT$. MISSING OPERAND The operand of some commands are missed. NEXT WITHOUT FOR A variable in a NEXT statement does not correspond to a previously executed unmatched FOR statement variable. OUT OF DATA A READ statement is executed when there are no DATA statements with unread data remaining in the program. OUT OF MEMORY A program is too large, had too many FOR loops or GOSUB, too many variables, or expressions that are too complicated. 74

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74
THE ERROR MESSAGES
CANNOT CONTINUE
An attempt is made to continue a program that:
1. Has halted due to an error.
2. Has been modified during a break in execution, or
3. Does not exist.
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.
EXTRA IGNORED
More than one parameter is entered to ‘
INPUT
’ command.
ILLEGAL DIRECT
A statement that is illegal in direct mode command.
Example:
INPUT
ILLEGAL FUNCTION CALL
A parameter that is out of range is passed to a math or string function.
This error may
also occur as the result of:
1. A negative or unreasonably large subscript.
2. A negative or zero argument with
LOG
.
3. A negative argument to
SQR
.
4. A negative mantissa with a non-integer exponent.
5. An improper argument to
MID$
,
LEFT$
,
RIGHT$
.
MISSING OPERAND
The operand of some commands are missed.
NEXT WITHOUT FOR
A variable in a
NEXT
statement does not correspond to a previously executed unmatched
FOR
statement variable.
OUT OF DATA
A
READ
statement is executed when there are no
DATA
statements with unread data
remaining in the program.
OUT OF MEMORY
A program is too large, had too many
FOR
loops or
GOSUB
, too many variables, or
expressions that are too complicated.