Emulgeer

Emulgeer is an open-source software project that provides a modular emulator framework designed for cross-architecture software preservation, research, and experimentation. The project emphasizes accuracy, performance, and extensibility, enabling developers to implement new CPU cores, hardware devices, and frontends without altering the core engine.

The architecture centers on a core emulation engine, a plugin interface for CPU and device modules, a scheduler, and standard debugging and IO facilities. Cores implement specific CPU and memory models; devices emulate hardware components such as memory controllers, graphics pipelines, and peripherals. The plugin API supports third-party cores and devices, while the host supplies a multithreaded execution model and an optional dynamic translation layer to improve speed.

Key features include support for multiple CPU architectures, dynamic recompilation (or interpretation) paths, precise timing synchronization, and robust state saving and loading. Emulgeer offers tooling for debugging, logging, and scripting, along with several frontends, including graphical and command-line interfaces. The project is designed to enable research-grade emulation and to assist digital preservation and educational use.

Development and licensing: Emulgeer is released under a permissive open-source license and is developed by a community of contributors. The project maintains public repositories, continuous integration, and governance by a rotating maintainers group. Platform support covers major desktop operating systems, with ongoing work for embedded and ARM targets.

Reception and use: The framework is used by universities, museums, and hobbyists for software preservation, historical research, and retro-computing projects. It is cited for its extensible design and emphasis on reproducible configurations.