Automatically generated usage message.
-h,--help Show a brief usage message and exit. -r,--readme Show a more elaborate README message and exit. --stv=FILE The symbolic test vector that will be used to run the module. -s,--search=DIR Search path for finding modules. You can give this switch multiple times, to set up multiple search paths in priority order. --searchext=EXT Control the search extensions for finding modules. You can give this switch multiple times. By default we just look for files named "foo.v" in the --search directories. But if you have Verilog files with different extensions, this won't work, so you can add these extensions here. EXT should not include the period, e.g., use "--searchext vv" to consider files like "foo.vv", etc. -D,--define=VAR Set up definitions to use before parsing begins. Equivalent to putting `define VAR 1 at the top of your Verilog file. You can give this option multiple times. --edition=EDITION Which edition of the Verilog standard to implement? Default: "SystemVerilog" (IEEE 1800-2012). You can alternately use "Verilog" for IEEE 1364-2005, i.e., Verilog-2005. --strict Disable VL extensions to Verilog. -m,--mem=GB How much memory to try to use. Default: 4 GB. Raising this may improve performance by avoiding garbage collection. To avoid swapping, keep this below (physical_memory - 2 GB).