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Implementing a Game Boy emulator in Ruby

Introduction I created a Game Boy emulator in Ruby and released it as a gem called rubyboy! (I’d be happy if you could give it a star!) And now it runs in the browser using WebAssembly! Try the demo in your browser! Screenshots Rubyでゲームボーイのエミュレータを作りました！ カラー対応やWasmでブラウザ対応もやっていきたい💪 GitHub: https://t.co/hFwmZD6FNp pic.twitter.com/qWbx8v4mef — sacckey (@sacckey) March 17, 2024 This Article While explaining the implementation process of Ruby Boy, I’ll introduce the points where I got stuck and the techniques I devised.

Interrupts are performed from the following three classes Timer: Counts the number of cycles Ppu: Generates pixel information to be rendered on the display Joypad: Receives button inputs from the Game Boy The exec method receives current button inputs (direction keys, A, B, Start, Select), emulates the Game Boy, and writes frame data to /video.data. Learned About Low-Level Technology Through implementing programs that mimic CPU, memory, registers, RAM, etc., I was able to deepen my knowledge about their roles and operations.

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