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Gearboy Git (2026/02/15) is a Nintendo Game Boy emulator developed in C++ that prioritizes readability while maintaining good compatibility. It features accurate CPU emulation and instruction timing, supports various Memory Bank Controllers, and replicates the Game Boy’s LCD ghosting effect. Additionally, it includes sound emulation via SDL Audio, Game Boy Color support, an integrated disassembler, and save options for battery-powered RAM cartridges. Gearboy is multi-platform, functioning on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core. Recent updates include fixing configuration settings on the first run.
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Gearboy Git (2026/02/15) has been compiled. Gearboy is a Nintendo Game Boy emulator developed in C++. This emulator emphasizes source code clarity while achieving strong compatibility. Significant effort has been put into adhering to OOP principles and maintaining simplicity.
Gearboy Features:
– Highly precise CPU emulation, successfully passing cpu_instrs.gb from blargg’s tests.
– Accurate instruction and memory timing, achieving success with instr_timing.gb and mem_timing.gb from blargg’s tests.
– Support for Memory Bank Controllers (MBC1, MBC2, MBC3 with RTC, MBC5), multicart cartridges, and both ROM + RAM.
– Accurate emulation of the LCD controller, including background, window, and sprites, with correct timings and priorities, such as mid-scanline timing.
– Frame mixing: Simulates the LCD ghosting effect reminiscent of 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 output full disassembled memory to a text file or access it in real time.
– Ability to save battery-powered RAM cartridges to a file.
– Save states functionality.
– Support for compressed ROMs (ZIP deflate).
– Game Genie and GameShark cheat functionalities.
– Multi-platform availability. Compatible with Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core (RetroArch).
Gearboy Git Changelog:
* Merge pull request #204 from RipleyTom/first_launch_config
* Resolve configuration issues on first launch
