You can use other letters to select specific options for the list: -ah requests a high-level language listing, -al requests an output-program assembly listing, and -as requests a symbol table listing. High-level listings require that a compiler debugging option like -g be used, and that also assembly listings (-al) be requested.

Use the -ad option to omit debugging directives from the listing.

Once you have specified one of these options, you can further control listing output and its appearance using the directives .list, .nolist, .psize, .eject, .title, and .sbttl. The -an option turns off all forms processing. If you do not request listing output with one of the -a options, the listing-control directives have no effect.

The letters after -a may be combined into one option, e.g., -aln.