CONT

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BASIC keyword
Keyword: CONT
Abbreviation: C Shift+O
Type: Command
Token code: 154/$9A
Handling routine
in BASIC ROM:
43095–43120
$A857–A870
List of all BASIC keywords


Remark: This article describes the BASIC-Command CONT in BASIC V2 at the Commodore 64.

Type: Command
General Programming-Syntax: CONT

The BASIC-Command CONT is used to resume execution of a BASIC program, which either ended in with an END or a STOP command, or was halted by pressing the RUN/STOP .

Note that CONT fails to work if the BASIC program has been edited after right after a stop; editing the program recalculates and overwrites the start of variable memory pointers, effectively clearing the variable memory. Therefore, trying to CONTinue a program that was stopped, then edited, yields the BASIC error message ?CAN'T CONTINUE ERROR..
In case the program stop is caused by an error one might take a GOTO into consideration to continue at a line somewhere after the failing statement.

Any given parameter to CONT raises a ?SYNTAX ERROR.

An interesting usage of CONT might be as a halt statement, which is similar to a GOTO to the same line or a WAIT 0,1, but shorter in code size. In contrast to WAIT a break with RUN/STOP  is still possible. The line number showed is always from the line of the last executed END or STOP command, otherwise 0.

Examples[edit]

CONT in direct mode[edit]

10 PRINT "PART 1"
20 END : PRINT "AFTER 'END'"
30 PRINT "PART 2"
RUN

shows

PART 1

After giving CONT one gets

AFTER 'END'
PART 2

CONT as wait statement[edit]

10 PRINT "WAITING ..."
20 CONT

Run the program and breaking it with RUN/STOP  leads to

WAITING ...

BREAK IN 0
READY.

Since no END or STOP has been called before the line number is still in initialized to 0 even though the break happened at line 20.


BASIC V2.0 (second release) Commands

ABS | AND | ASC | ATN | CHR$ | CLOSE | CLR | CMD | CONT | COS | DATA | DEF | DIM | END | EXP | FN | FOR | FRE | GET | GET# | GOSUB | GOTO | IF | INPUT | INPUT# | INT | LEFT$ | LEN | LET | LIST | LOAD | LOG | MID$ | NEW | NEXT | NOT | ON | OPEN | OR | PEEK | π | POKE | POS | PRINT | PRINT# | READ | REM | RESTORE | RETURN | RIGHT$ | RND | RUN | SAVE | SGN | SIN | SPC | SQR | STATUS/ST | STEP | STOP | STR$ | SYS | TAB | TAN | THEN | TIME/TI | TIME$/TI$ | TO | USR | VAL | VERIFY | WAIT