Oh Boy! Creating a Game Boy Emulator in Rust
summary
A full Game Boy emulator implemented in Rust that actually boots cartridges and displays the Nintendo logo, composes graphics from 8x8 tiles (about 384 tiles), implements a 16-bit address space (0xffff) and roughly 200 CPU opcodes, keeps timing to ~30 frames/sec, and runs as a native window or compiled to WebAssembly for the browser and mobile. Uses a memory bus, GPU tile/V RAM model and a CPU stepping loop, relies on crates like minifb for the framebuffer, and ships source and a how-to book (dmg01 repo).
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chapters (6)
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