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Gearboy Git (2025/12/22) is a Nintendo Game Boy emulator written in C++, emphasizing source code readability while ensuring strong compatibility. Key features include highly accurate CPU emulation, precise instruction and memory timing, support for various Memory Bank Controllers, and accurate LCD emulation. It also offers Game Boy Color support, sound emulation via SDL Audio, integrated disassembler functionality, save states, and cheat support. The emulator runs across multiple platforms including Windows, Linux, Mac OS X, and iOS. The latest changelog adds an option to change background colors, enhancing user experience.
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Gearboy Git (2025/12/22) has been compiled. Gearboy is an emulator for the Nintendo Game Boy, developed in C++. This emulator prioritizes the readability of its source code while ensuring notable compatibility. A significant amount of effort has been dedicated to adopting OOP principles and maintaining simplicity.
Gearboy Features:
– Highly precise CPU emulation, successfully completes cpu_instrs.gb from blargg’s tests.
– Accurate instruction and memory timing, passes instr_timing.gb and mem_timing.gb from blargg’s tests.
– Supports Memory Bank Controllers (MBC1, MBC2, MBC3 with RTC, MBC5), along with ROM + RAM and multicart cartridges.
– Accurate LCD controller emulation, including background, window, and sprites, with proper timings and priorities, even mid-scanline timing.
– Frame mixing: Emulates the LCD ghosting effect characteristic of the original Game Boy.
– Sound emulation powered by SDL Audio and the Gb_Snd_Emu library.
– Compatibility with Game Boy Color.
– Built-in disassembler that can output the complete disassembled memory to a text file or access it in real-time.
– Saves for battery-backed RAM cartridges can be stored to a file.
– Save states are supported.
– Compressed ROM support (ZIP deflate).
– Includes support for Game Genie and GameShark cheats.
– Multi-platform compatibility, functioning on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core (RetroArch).
Gearboy Git Changelog:
* [desktop] Added option to alter background colors
