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GearSystem Git (2026/04/26) is a Sega Master System/Game Gear emulator developed in C++ compatible with iOS, Raspberry Pi, Mac, Windows, and Linux. It emphasizes source code readability and high compatibility. Key features include a precise Z80 core, multi-mapper support, external RAM with save files, automatic region detection, SMS2 224 mode support, and a built-in ROM detection database. Sound emulation utilizes SDL Audio and Sms_Snd_Emu. It includes an integrated disassembler for real-time access and text file dumping. The emulator also supports compressed ROM files and maintains cross-platform functionality. Recent changes involve using bounded copies for GUI text buffers.
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GearSystem Git (2026/04/26) has been compiled. GearSystem is an emulator for the Sega Master System / Game Gear, developed in C++ and compatible with iOS, Raspberry Pi, Mac, Windows, and Linux. This emulator prioritizes source code readability while maintaining exceptional compatibility.
Features:
– Accurate Z80 core.
– Multi-Mapper support for SEGA, Codemasters, and ROM-only cartridges.
– Support for external RAM with save files.
– Automatic region detection for NTSC-JAP, NTSC-USA, and PAL-EUR.
– Support for SMS2 224 mode.
– Internal database for ROM detection.
– Sound emulation using SDL Audio and the Sms_Snd_Emu library.
– Integrated disassembler capable of dumping full disassembled memory to a text file or providing real-time access.
– Compressed ROM support (ZIP deflate).
– Cross-platform compatibility: runs on Windows, Linux, Mac OS X, Raspberry Pi, and iOS.
GearSystem Git changelog:
* Implemented bounded copies for GUI text buffers
