m64fp

m64fp is an open-source software component associated with Nintendo 64 emulation. It provides floating-point support for the MIPS-based CPU used in the system, aiming to reproduce the behavior of the original FPU more accurately and to improve performance in emulation scenarios. The project appears in the ecosystem of N64 emulation forks and plugins; public documentation is sparse, and different forks may implement varying levels of compatibility and optimization.

Typically implemented as a library or module integrated into an emulator, m64fp exposes routines for common floating-point operations and exception handling, aligning with the requirements of MIPS FP instructions used by N64 software. It is intended to be portable across platforms supported by prominent emulators, including Windows, Linux, and macOS, and is distributed under an open-source license in some forks.

Development and history details are limited in widely accessible sources; as with many niche emulator components, contributions are community-led, with updates appearing in repository hosts such as GitHub and GitLab.

See also: Nintendo 64, MIPS architecture, Floating-point unit, Emulation, Open-source software.