There are a lot that emulate 8-bit CPUs, although which have fixed clock speeds, I'm not sure. I have my own 8Mhz 8-bit AVR that I work on from time to time.

There are a lot that emulate 8-bit CPUs, although which have fixed clock speeds, I'm not sure. I have my own 8Mhz 8-bit AVR that I work on from time to time. It's more designed for the Assembly coder experience. https://k8.fingswotidun.com/static/ide/?gist=78d170a65bc6c9ddaecefa4424915ac3 https://k8.fingswotidun.com/static/ide/?gist=78d170a65bc6c9d... I have wondered about doing a version the the same virtual IO 'hardware' and a WASM core.