I love absolutely everything about this. I get the same feeling of admiration and envy from this that I get from machinists who build tooling and fixtures that

I love absolutely everything about this. I get the same feeling of admiration and envy from this that I get from machinists who build tooling and fixtures that they then use to make parts. This system feels like a serious tool the author built to do real work. The author's simulator runs fine on a 32-bit Windows machine. I would expect it to run under DOSBox just fine. The simulator's text user interface is also superb. Getting the machine running with the full OS was very straightforward (run "D6809.COM W=CUBIX.DDI" to start with the OS disk mounted read/write).