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GearSystem Git (2026/04/30) is a Sega Master System/Game Gear emulator developed in C++ for iOS, Raspberry Pi, Mac, Windows, and Linux, prioritizing source code readability and compatibility. Key features include a highly accurate Z80 core, multi-mapper support for various cartridges, external RAM with save file capability, automatic region detection, SMS2 mode support, an internal ROM detection database, sound emulation via SDL Audio, an integrated disassembler, and support for compressed ROMs. Recent updates address save state validation and light gun detection. GearSystem runs across multiple platforms, demonstrating its versatility.
GearSystem Git (30 April 2026) has been compiled. GearSystem is an emulator for the Sega Master System and Game Gear, developed in C++, compatible with iOS, Raspberry Pi, Mac, Windows, and Linux. This emulator emphasizes code readability while maintaining excellent compatibility.
Highlights:
– Highly accurate Z80 core.
– Multi-Mapper support: SEGA, Codemasters, and ROM-only cartridges.
– External RAM functionality with save files.
– Automatic region detection: NTSC-JAP, NTSC-USA, PAL-EUR.
– SMS2 exclusive 224 mode support.
– Internal database for ROM identification.
– Sound emulation via SDL Audio and Sms_Snd_Emu library.
– Built-in disassembler that can export the complete disassembled memory to a text file or access it in real-time.
– Compressed ROM support (ZIP deflate).
– Cross-platform compatibility: Works on Windows, Linux, Mac OS X, Raspberry Pi, and iOS.
GearSystem Git changelog:
* Improved save state header validation.
* Fixed detection for extended display light guns.
* [mcp] Added emulator version to media retrieval.
