The output from the assembler can consist of an object module, a program listing, terminal messages, and an associated data file. The object module is stored on your virtual disk in a TEXT file. You can bring it into your virtual storage and run it by using the CMS LOAD and START commands. The program listing lists all the statements in the module, both in source and machine language format, and gives other important information about the assembly, such as error messages. The listing is described in detail in Using the assembler listing.