verilog_defines - define and undefine verilog defines

    verilog_defines [options]

Define and undefine verilog preprocessor macros.

    -Dname[=definition]
        define the preprocessor symbol 'name' and set its optional value
        'definition'

    -Uname[=definition]
        undefine the preprocessor symbol 'name'

    -reset
        clear list of defined preprocessor symbols

    -list
        list currently defined preprocessor symbols