Emulating the NES/Famicom/Dendy with Web Technologies
summary
A technical walkthrough of emulating the NES/Famicom on web technologies using TypeScript, Canvas and the Web Audio API. Covers three parts: emulating the 6502 CPU in JavaScript, implementing the graphics output and game resource formats (PPU/tiles/sprites) and synthesizing NES audio via Web Audio with an AudioWorklet for parallel processing. Includes practical optimization tips to keep the emulator running at 60 FPS.
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chapters (10)
- 0:00Start
- 8:08Processor state
- 10:33Program
- 12:21Von Neumann architecture
- 14:10Instruction
- 16:09Addressing modes
- 21:46Processor state reset
- 26:57NES architecture
- 31:30Palette
- 39:13Foreground object rendering
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