dump - print parts of the design in RTLIL format

    dump [options] [selection]

Write the selected parts of the design to the console or specified file in
RTLIL format.

        also dump the module headers, even if only parts of a single
        module is selected

        only dump the module headers if the entire module is selected

    -o <filename>
        write to the specified file.

    -a <filename>
        like -outfile but append instead of overwrite