Retro Replay Retro Replay gaming reviews, news, emulation, geek stuff and more!
Gearboy Git (2026/04/26) is a Nintendo Game Boy emulator developed in C++, emphasizing code readability while maintaining compatibility. Features include accurate CPU and memory timing, support for various Memory Bank Controllers (MBCs), and precise LCD controller emulation that mimics original ghosting effects. Additional functionalities encompass sound emulation, Game Boy Color support, an integrated disassembler, save state capabilities, and cheat support (Game Genie/GameShark). Gearboy operates on multiple platforms, including Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core for RetroArch. The recent changelog highlights the use of bounded copies for GUI text buffers.
(HEY YOU!! We hope you enjoy! We try not to run ads. So basically, this is a very expensive hobby running this site. Please consider joining us for updates, forums, and more. Network w/ us to make some cash or friends while retro gaming, and you can win some free retro games for posting. Okay, carry on đ)
Gearboy Git (2026/04/26) has been compiled. Gearboy is an emulator for the Nintendo Game Boy, developed in C++. This emulator emphasizes the readability of its source code while maintaining excellent compatibility. Significant effort has been dedicated to adhering to OOP principles and keeping the design straightforward.
Gearboy Features:
– Highly precise CPU emulation, successfully passing 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.
– Supports Memory Bank Controllers (MBC1, MBC2, MBC3 with RTC, MBC5), along with ROM + RAM and multicart cartridges.
– Faithful emulation of the LCD controller, including background, window, and sprites with correct timing and priorities, even mid-scanline timing.
– Frame mixing: Simulates the LCD ghosting effect observed in the original Game Boy.
– Sound emulation powered by SDL Audio and the Gb_Snd_Emu library.
– Compatibility with Game Boy Color.
– Built-in disassembler capable of dumping the entire disassembled memory to a text file or accessing it in real-time.
– Ability to save battery-operated RAM cartridges to files.
– Save states feature.
– Support for compressed ROMs (ZIP deflate).
– Cheat support for Game Genie and GameShark.
– Multi-platform compatibility, running on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core (RetroArch).
Gearboy Git Changelog:
* Implemented bounded copies for GUI text buffers
