tyrbentsen

A side project of mine that has become more serious last year is quite similar (https://www.studiotechnix.com/). My tool has the same caveats as Wasmino in that the CPU is modelled as "infinitely fast" and only "time functions" progress time. It is inherent to the method of simulating software coupled to physical models of hardware. Even with these assumptions, simulation can uncover a lot of functional faults / logic reasoning flaws in the embedded application. Testing on real hardware is of course still needed, but iterating on your design in simulation is much faster than on the real hardware. And it provides an easy way towards test automation which is much harder to setup with real hardware.