A modern, scratch-built, open-source (GPLv3) alternative ROM BIOS for PC, XT, 8088 Clone or Turbo PCs.

The Witchcraft Compiler Collection

The de facto operating system developed for the cult of Ayumu "Osaka" Kasuga.

A kernel with alot features like GOP and PCI support with uefi bootlaoder. It can handle many interrupts like PS2 Mosue and keyboard.

An IDE and Emulator for Chip-8, SuperCHIP, and XO-Chip Programs

tiny playstationy renderer

An N64-like software renderer

design files for the gametank hardware implementation

Box64 - Linux Userspace x86_64 Emulator with a twist, targeted at ARM64, RV64 and LoongArch Linux devices

Box86 - Linux Userspace x86 Emulator with a twist, targeted at ARM Linux devices

The first C compiler ported to x86

The fuzzer afl++ is afl with community patches, qemu 5.1 upgrade, collision-free coverage, enhanced laf-intel & redqueen, AFLfast++ power schedules, MOpt mutators, unicorn_mode, and a lot more!

Bare 8080 cpu emulator

User-mode threading library

Complete, independent operating system built by humans.

A simple emulator for the 8051 proccessor

PC-MOS/386 v5.01 and up, including cdrom driver sources.

A small vi/ex terminal text editor (neatvi rewrite)

Solving the global IC shortage by reusing old stuff!

PS/2 debug BIOS for Bermuda planars (PS/2 model 77, etc)

The world's worst kernel module

A lightweight (350MB) Lisp interpreter in Malbolge Unshackled, often dubbed the hardest turing complete programming language.

Linux kernel module for Nuvoton NCT6687-R