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Gearcoleco Git (2026/04/29) is a precise, open-source ColecoVision emulator developed in C++ that operates on various platforms including Windows, macOS, Linux, BSD, and Raspberry Pi. It features an accurate Z80 core with undocumented opcodes, TMS9918 emulation, and sound support via SDL Audio. Additional capabilities include save states, compressed ROM support, a full debugger, and compatibility with multiple gaming systems through libretro. Modern game controllers are supported, and users can set the emulator in portable mode. Ongoing development is backed by community supporters, enhancing its functionalities and user experience.
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Gearcoleco Git (2026/04/29) has been compiled. Gearcoleco is an exceptionally precise cross-platform ColecoVision emulator developed in C++, compatible with Windows, macOS, Linux, BSD, Raspberry Pi, and RetroArch. This is an open-source initiative, with its continuous progress made possible through the generous contributions of many wonderful backers.
Key Features:
Highly accurate Z80 core, with support for undocumented opcodes and unique behaviors such as R and MEMPTR registers.
Precise emulation of TMS9918.
Audio emulation utilizing SDL Audio and the Sms_Snd_Emu library.
State saving functionality.
Supports compressed ROM files (ZIP).
Compatible platforms (standalone): Windows, Linux, BSD, macOS, and Raspberry Pi.
Compatible platforms (libretro): Windows, Linux, macOS, Raspberry Pi, Android, iOS, tvOS, PlayStation Vita, PlayStation 3, Nintendo 3DS, Nintendo GameCube, Nintendo Wii, Nintendo WiiU, Nintendo Switch, Emscripten, Classic Mini systems (NES, SNES, C64, …), OpenDingux, RetroFW, and QNX.
Comprehensive debugger with just-in-time disassembler, CPU breakpoints, memory access breakpoints, code navigation (goto address, JP, JR, and CALL double clicking), debug symbols, memory editor, IO inspector, and VRAM viewer that includes registers, tiles, sprites, and backgrounds.
Portable Mode for Windows and Linux by creating a portable.ini file in the same folder as the application binary.
Support for modern game controllers via the gamecontrollerdb.txt file located in the same directory as the application binary.
Release Notes for Gearcoleco:
* Merged branch ‘main’ of https://github.com/drhelius/Gearcoleco
* Updated README.md
* [mcp] Display connection status
