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The Qweremin

The Qweremin I invented a new instrument: The Qweremin is a qwerty theremin. Background In the summer of 2022 I built a C64-based theremin, described and explained here. The theremin, of course, is one of the oldest electronic instruments. Its main drawback—and strength—is that it's incredibly hard to master. The performer has ultimate control over volume and pitch, but it takes months of practice before you can play even a simple scale. Meanwhile, I've also developed a line of instruments f

How the Final Cartridge III Freezer Works

by Daniël Mantione Daniël contributed the commented disassembly of the FC3 freezer functionality to the reverse engineering effort at github.com/mist64/final_cartridge. Thanks to Eric Schlaepfer for his input on 6502 timing. Freezer cartridge theory One key reason why the Commodore 64 was so successful in the 80s was that it was able to do things it wasn’t designed for. Freezer cartridges, which allowed stopping any running program or game, applying cheat codes and resuming, or saving the com