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Gearboy Git (2026/02/09) is a C++ Nintendo Game Boy emulator emphasizing source code readability and good compatibility. It features highly accurate CPU and memory timing, supports multiple Memory Bank Controllers, and replicates the original LCD’s ghosting effect. The sound is emulated using SDL Audio, with Game Boy Color support included. Additional features are an integrated disassembler, save states, compressed ROM support (ZIP), and cheat support through Game Genie/GameShark. Gearboy runs on various platforms, including Windows, Linux, macOS, Raspberry Pi, iOS, and as a libretro core for RetroArch. Recent updates improved audio handling and fixed settings localization.
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Gearboy Git (2026/02/09) has been compiled. Gearboy is a Nintendo Game Boy emulator developed in C++. This emulator emphasizes readability in its source code while ensuring good compatibility. Significant effort has been put into adhering to object-oriented programming principles, maintaining simplicity.
Gearboy Features:
– Highly precise CPU emulation, passing the cpu_instrs.gb from blargg’s tests.
– Accurate timing for instructions and memory, passing instr_timing.gb and mem_timing.gb from blargg’s tests.
– Support for Memory Bank Controllers (MBC1, MBC2, MBC3 with RTC, MBC5), ROM + RAM, and multicart cartridges.
– Precise emulation of the LCD controller, including backgrounds, window, and sprites with correct timings and priorities, even mid-scanline timing.
– Frame mixing: Simulates the ghosting effect seen on the original Game Boy.
– Sound emulation utilizing SDL Audio and the Gb_Snd_Emu library.
– Compatibility with Game Boy Color.
– Built-in disassembler that can either export the full disassembled memory to a text file or access it live.
– Ability to save battery-powered RAM cartridges to a file.
– Save states feature.
– Support for compressed ROMs (ZIP deflate).
– Cheats via Game Genie and GameShark supported.
– Cross-platform capabilities, running on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core (RetroArch).
Gearboy Git Changelog:
* Improved SoundQueue
* Reset audio following media loading
* Enhanced SoundQueue initialization
* Corrected locale settings for floats
