Program Execution Labels

ANSI

Program Execution Labels are execution points identified by a valid LABEL definition that has not been previously used as execution points (unless a local LABEL). Program Execution Labels must adhere to the following rules:

It must begin in the first column of the line and may be the only item on the line.
It references the first OPERATION that follows.

Note the following example:

1 RESET0	MOVE	"0" TO PAGECNTR
ADDONE
2	ADD	"1" TO PAGECNTR
3	COMPARE	"60" TO PAGECNTR
4	GOTO	ADDONE IF LESS
5	GOTO	RESET0

The Program Execution Labels RESET0 and ADDONE reference lines 1 and 2 respectively and are referenced by 5 and 4 respectively. Program Execution Labels may be alone on a line or may precede a valid PL/B operation. All PL/B operations between Program Execution Labels are associated with the preceding Program Execution Label.

See Also: Instruction Syntax