Considerations for Assembler Programs in a DC/UCF Online System › Methods of Calling an Online Assembler Subprogram › TRANFER CONTROL, #LINK, or ADS LINK

TRANFER CONTROL, #LINK, or ADS LINK

The preferred method for calling an assembler subprogram is a TRANSFER CONTROL from COBOL or PL/I, a #LINK from another assembler program, or a LINK instruction from ADS. If this method of control is used, the DC/UCF system is in control of the calling process. This method provides the following advantages:

• If an error occurs in the subprogram, system error messages will reflect the correct program name.
• Any limits set for that program will be taken into account
• SVC screening will be turned off. This is imperative if the subprogram issues any SVC instructions and it is called from a COBOL or PL/I program.