On Apr 10, 2020, at 8:40 PM, L. Curtis Boyle <curtisboyle at sasktel.net> wrote: > > Yeah, really need to set up a GIME FIRQ based timer for it at some point. I’d love to learn how to use interrupts. I’ve used them years later on modern systems so maybe I could figure it out if I tried the CoCo IRQs today.