gtpm6m12 | Main Supervisor Reference |
You can code a prefix on IDOTB calls to distinguish between the system error numbers you created and those provided by IBM. IBM reserves prefixes I, W, X, Y, and Z for its own use. You can use other prefixes to distinguish between, or to group, system errors. If you do not code a prefix, it defaults to U. The prefix determines which dump override tables the TPF system will refer to when a system error occurs. (There is one exception to this: the TARGET(TPF) functions exit and perror cannot accommodate a prefix character, so a single set of system error numbers is used by programs provided by IBM and developed on your site.
If you want to use the version of SMDT that IBM ships with minimal tailoring, but you want to include areas that are excluded by default (such as the global areas), you can do one of the following:
All IBM SERRC calls are prefixed with the letter I. The SERRC service code will supply a default prefix of U for all other code. When you use ZIDOT to include or exclude specific areas in your dump, you must include the prefix. If you are allowing the prefix to default to U, code this prefix on the ZIDOT command or the IDOTB macro.