Prolog format changes

The prolog of an object program is the code that the compiler generates at the entry point of the program. It also contains data that identifies the program.

Object modules generated by Enterprise COBOL are Language Environment® conforming, and thus have a different prolog format than with OS/VS COBOL. You will need to update existing assembler programs that scan for date and time to the new format.

You can compile your programs with the Enterprise COBOL LIST compiler option to generate a listing that you can use to compare the OS/VS COBOL prolog format with the Enterprise COBOL prolog format.