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GearSystem Git (2026/04/07) is a Sega Master System/Game Gear emulator developed in C++ for multiple platforms, including iOS, Raspberry Pi, Mac, Windows, and Linux. It prioritizes source code readability and offers high compatibility. Features include a precise Z80 core, multi-mapper support (SEGA, Codemasters), external RAM for save files, automatic region detection, SMS2 mode support, an internal ROM detection database, and sound emulation via SDL Audio. The emulator also supports compressed ROMs and includes an integrated disassembler. Recent updates addressed issues with SG-1000 detection and ROM reads. Download is available through the provided source link.
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GearSystem Git (2026/04/07) has been compiled. GearSystem is an emulator for the Sega Master System and Game Gear, developed in C++, and compatible with iOS, Raspberry Pi, Mac, Windows, and Linux. This emulator prioritizes source code readability while achieving high compatibility.
Features:
– Accurate Z80 core.
– Multi-Mapper support for SEGA, Codemasters, and ROM-only cartridges.
– Supports external RAM and save files.
– Automatic region detection, supporting NTSC-JAP, NTSC-USA, and PAL-EUR.
– SMS2 224 mode capability.
– Contains an internal database for ROM detection.
– Sound emulation utilizing SDL Audio and the Sms_Snd_Emu library.
– Integrated disassembler; can export full disassembled memory to a text file or access data in real time.
– Compressed ROM support (ZIP deflate).
– Multi-platform compatibility, running on Windows, Linux, Mac OS X, Raspberry Pi, and iOS.
GearSystem Git changelog:
* Fixed detection for Loretta no Shouzou SG-1000
* Resolved issues with SG-1000 40KB ROM reads
