Running NetBSD on an Ancient i486SX: A Soft FPU Emulator is Born

2025-05-11
Running NetBSD on an Ancient i486SX: A Soft FPU Emulator is Born

A developer successfully emulated a missing floating-point unit (FPU) on an old i486SX laptop. After months of work, they successfully implemented a soft FPU emulator on NetBSD 10 and open-sourced the project. This project not only brings old 486SX machines back to life but also offers new possibilities for retrocomputing enthusiasts. It has now been successfully tested on the 86Box virtual machine.

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