* <https://www.lowrisc.org/open-silicon/>
* <http://fpgacpu.ca/fpga/Pipeline_Skid_Buffer.html> pipeline skid buffer
* <https://pyvcd.readthedocs.io/en/latest/vcd.gtkw.html> GTKwave
+* <https://github.com/ics-jku/wal> - Waveform Analysis
* <http://www.sunburst-design.com/papers/CummingsSNUG2002SJ_Resets.pdf>
Synchronous Resets? Asynchronous Resets? I am so confused! How will I
ever know which to use? by Clifford E. Cummings