Cosmacuino has disassembler but getting too big for nano.WIP
Note in serial terminal screen getting 20KHz clock cycle. Fastest yet but still slowed down by all that Arduino loop code. Get a big jump going from delay =02,01 then zero.Maybe compiler just misses out delay(0) and doesn't even visit delay() code.
Arduino code is in pasetbin: https://pastebin.com/a8HFscTC
Terminal shortcuts are here: https://pastebin.com/FhA4MMX0
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