A CHIP-8 emulator with a Korone-based sound chip.
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Make sure you have Java installed, at version 11. If not, get it from adoptium.net.
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Download the JAR from the latest release.
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Get some roms to run. The default key map is QWER to 123C, ASDF to 456D, ZXCV to 789E, and 1234 to A0BF. Most roms use 2, 4, 6 and 8 for directional input, which maps to W, A, D and X respectively.
Breakout is a great choice for experiencing the cutting-edge doggo sound chip of koro8. Using the default key map, the A and D keys control the paddle.
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Run koro8 with the path to one of your downloaded roms as argument:
java -jar koro8-0.1.2-min.jar /path/to/some/rom.ch8. You can also fine-tune various parts of koro8's appearance and behaviour.
See (and, more importantly, listen to) koro8 in action: