On the C64 short board (eg. 250469), the cold boot reset is way shorter (2-300ms), than on the older boards (2000+ms). When you install an Arduino kernal switcher, the c64 boots faster, than arduino ...

You can embed (short) tunes into the code using C header files, but that involves converting the music into a dump and then converting the dump into a C header array: Extract SID music data from SID ...

There’s a lot of reasons you might want to emulate the keyboard on your Commodore 64. The ravages of time and dust may have put the original keyboard out of order, or perhaps you need to type in a ...