Awesome

"Hardcaml Verilator"

Hardcaml_verilator converts Hardcaml designs to verilog and compiles them with verilator. This produces a very high performance, cycle accurate, simulation model of the design.

The library transparently compiles the verilator simulation model to a shared library and loads it into the running program. It exposes a simulation API compatible with [Hardcaml.Cyclesim].

Compiling the verilator simulation model can take significant time - therefore a simple caching scheme is implemented so that the shared library can be reused on the second and subsequent runs if the design does not change.