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Gearboy Git (2026/02/04) is a C++ Nintendo Game Boy emulator emphasizing source code readability and good compatibility. Key features include highly accurate CPU and memory emulation, support for various Memory Bank Controllers (MBCs), precise LCD controller emulation, and sound emulation via SDL Audio. It offers Game Boy Color support, an integrated disassembler, save states, and game cheat support. Gearboy is multi-platform, compatible with Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core. Recent updates include a README update, Windows build fixes, and console output adjustments. Download is available through the source link.
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Gearboy Git (2026/02/04) has been compiled. Gearboy is a Nintendo Game Boy emulator developed in C++. The primary focus of the emulator is to ensure the source code is readable, while also maintaining strong compatibility. Significant effort has been invested to adhere to OOP principles and to keep it straightforward.
Features of Gearboy:
– Highly precise CPU emulation, successfully passing cpu_instrs.gb from blargg’s tests.
– Reliable instruction and memory timing, passing instr_timing.gb and mem_timing.gb from blargg’s benchmarks.
– Support for Memory Bank Controllers (MBC1, MBC2, MBC3 with RTC, MBC5), alongside ROM + RAM and multicart cartridges.
– Accurate emulation of the LCD controller, including accurate timing and priority settings for backgrounds, windows, and sprites, even mid-scanline timing.
– Mixed frames: Simulates the LCD ghosting effect experienced on the original Game Boy.
– Sound emulation utilizing SDL Audio and the Gb_Snd_Emu library.
– Compatibility with Game Boy Color.
– Built-in disassembler, which can export the fully disassembled memory to a text file or allow real-time access.
– Battery-backed RAM cartridges can be saved to files.
– Save state functionality.
– Support for compressed ROM files (ZIP deflate).
– Cheat code support for Game Genie and GameShark.
– Multi-platform: Functions on Windows, Linux, Mac OS X, Raspberry Pi, iOS, and as a libretro core (RetroArch).
Gearboy Git Changelog:
* Updated readme
* Fixed build for Windows
* Resolved console output issues in Windows
