That's interesting, I can't comment on that yet and there isn't a lot of debug code in there yet, so running with additional -V parameters won't help much I guess.
It helps please go on. I need to check the IMC mailbox and SIO addreses. We can continue with some other programs to verify that IMC accepts at least some commands.
-- Kind regards/Mit freundlichen Grüßen, Stefan Tauner