RMode31 Frequently Asked Questions
Can VS/COBOL programs that were compiled without the RESIDENT option be run above the line with RM31?
Yes. VS/COBOL programs that were compiled with or without the RESIDENT option can be run above the line with RM31.
Can all 24-bit Assembler programs run above the line with the RM31 option?
No. If a program uses the high order byte of an address for other purposes, then that program can not run above the line. This includes programs that use the facility control indicator (FCI) bit in the TCA.
Can VS/COBOL programs containing restricted verbs such as INSPECT or STRING be run above the line?
Not safely. Programs containing restricted verbs have the same limitations running below the line as they do running above the line. See the documentation on restricted OS/VS COBOL language statements in the CICS Application Programming Guide for more information.