HP 3000 Manuals HP 3000 Manuals
Perform Statements PERFORM statements are not treated in the same way by both COBOL systems. This COBOL system uses a stack-based perform handling system while the RM/COBOL system associates a return address with a specific procedure name. As a result under the RM/COBOL system all end-points to PERFORM statements are always active until they are used. However under this system only the end-point of the last PERFORM statement is active at any one time. You must set the PERFORM-TYPEdirective with the RM parameter if this COBOL system is to emulate the behavior of RM/COBOL PERFORM statements. See your COBOL System Reference for details.