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Gearboy Git (2026/05/15) is a C++ Nintendo Game Boy emulator that prioritizes code readability while maintaining strong compatibility. Key features include accurate CPU, instruction, and memory timing, support for various Memory Bank Controllers, and precise LCD controller emulation. It mimics the original Game Boy’s ghosting effect, includes sound emulation via SDL, and supports Game Boy Color. Additional functionalities feature an integrated disassembler, save state options, compressed ROM support, and cheat codes (Game Genie and GameShark). Gearboy is multi-platform, running on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core for RetroArch.
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Gearboy Git (2026/05/15) has been compiled. Gearboy is a Nintendo Game Boy emulator developed in C++. This emulator prioritizes source code readability while maintaining strong compatibility. Significant effort has been made to implement OOP principles and keep the design straightforward.
Key Features of Gearboy:
– Highly precise CPU emulation, passes 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), ROM + RAM, and multicart cartridges.
– Precise LCD controller emulation. Includes background, window, and sprite handling with correct timings and priorities, including mid-scanline timing.
– Mix frames: Simulates the LCD ghosting effect observed on the original Game Boy.
– Sound emulation utilizing SDL Audio and Gb_Snd_Emu library.
– Compatible with Game Boy Color.
– Built-in disassembler. Can output the entire disassembled memory to a text file or access it in real-time.
– Saves battery-powered RAM cartridges to files.
– Supports save states.
– Compressed ROM support (ZIP deflate).
– Game Genie and GameShark cheat compatibility.
– Multi-platform compatibility. Operates on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core (RetroArch).
Changelog for Gearboy Git:
* [mcp] Added a new tool to display the latest media
* Resolved warnings
