After all program sections are prepared and the process of building the final module is complete, save the LOAD MAP file. This gives IDF the location of program sections within the module. If multiple programs are being debugged, rename the file to "modname MAP" (where modname is the file name of the MODULE).

By default, any local symbols which are present in SYM records within the program object code are placed in the MAP file, with the prefix Invalid card - IDF uses this information if, for some reason, you cannot use the ASMLANGX files for source-level debugging. Suppress these records with the NOINV option of the CMS LOAD command if you wish to minimize the size of the MAP file.