IB Statements/messagesub
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(New page: '''MESSAGESUB statement''' '''Syntax:''' MESSAGESUB statement-label '''Discussion:''' The MESSAGESUB statement sets a branch-to address for the current program. If this program is i...)
(New page: '''MESSAGESUB statement''' '''Syntax:''' MESSAGESUB statement-label '''Discussion:''' The MESSAGESUB statement sets a branch-to address for the current program. If this program is i...)
Latest revision as of 11:11, 21 May 2009
MESSAGESUB statement
Syntax: MESSAGESUB statement-label
Discussion: The MESSAGESUB statement sets a branch-to address for the current program. If this program is interrupted while running (via an INTERRUPT statement from another program), program flow will be transferred to the statement-label specified in the MESSAGESUB statement.
When a RETURN statement is executed after the MESSAGESUB path has been taken, program flow continues at the statement immediately following the statement where the INTERRUPT occurred.
Example: MESSAGESUB 9999 ! Set MESSAGESUB label
.
.
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9999 MESSAGESUB 9999 ! Reset MESSAGESUB label
RETURN
