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GearSystem Git (2026/05/03) is a versatile emulator for Sega Master System and Game Gear, developed in C++ and compatible with iOS, Raspberry Pi, Mac, Windows, and Linux. Its features include a highly accurate Z80 core, multi-mapper support for various cartridges, and external RAM for save files. It automatically detects regions (NTSC-JAP, NTSC-USA, PAL-EUR) and supports SMS2 only 224 mode. Additional capabilities include sound emulation with SDL Audio, an integrated disassembler for real-time access, and compressed ROM support (ZIP deflate). The emulator prioritizes source code readability and boasts high compatibility across platforms.
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GearSystem Git (2026/05/03) has been compiled. GearSystem is an emulator for Sega Master System / Game Gear, developed in C++, and compatible with iOS, Raspberry Pi, Mac, Windows, and Linux. This emulator prioritizes source code readability alongside exceptional compatibility.
Features:
– Precise Z80 core implementation.
– Multi-Mapper compatibility: SEGA, Codemasters, and ROM-only cartridges.
– External RAM capabilities with save file support.
– Automatic detection for NTSC-JAP, NTSC-USA, and PAL-EUR regions.
– SMS2 exclusive 224 mode support.
– Built-in database for ROM identification.
– Sound emulation via SDL Audio and Sms_Snd_Emu libraries.
– Disassembler included, capable of dumping full disassembled memory to a text file or real-time access.
– Supports compressed ROMs (ZIP deflate).
– Multi-platform compatibility: runs on Windows, Linux, Mac OS X, Raspberry Pi, and iOS.
GearSystem Git changelog:
* [mcp] Synchronize rewind functionality with GUI.
