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GearSystem Git (2026/03/20) is a Sega Master System/Game Gear emulator developed in C++. It runs on multiple platforms, including iOS, Raspberry Pi, Mac, Windows, and Linux, emphasizing readable source code and high compatibility. Key features include an accurate Z80 core, multi-mapper support, external RAM with save files, automatic region detection, SMS2 224 mode support, an internal ROM detection database, and sound emulation through SDL Audio and Sms_Snd_Emu. It also includes an integrated disassembler and supports compressed ROM files. Recent updates fix leftover macros. Download available for GearSystem Git.
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GearSystem Git (2026/03/20) has been compiled. GearSystem is an emulator for Sega Master System / Game Gear, developed in C++. It supports iOS, Raspberry Pi, Mac, Windows, and Linux. This emulator prioritizes source code readability and offers excellent compatibility.
Features:
– Extremely accurate Z80 core.
– Multi-Mapper compatibility: SEGA, Codemasters, and ROM only cartridges.
– External RAM support with saved files.
– Automatic region detection: NTSC-JAP, NTSC-USA, PAL-EUR.
– SMS2 exclusive 224 mode support.
– Built-in database for ROM detection.
– Sound emulation through SDL Audio and Sms_Snd_Emu library.
– Integrated disassembler that can output the complete disassembled memory to a text file or access it in real-time.
– Compressed ROM support (ZIP deflate).
– Multi-platform support across Windows, Linux, Mac OS X, Raspberry Pi, and iOS.
GearSystem Git changelog:
* Resolved lingering macros
