Master programming by recreating your favorite technologies from scratch.

Linux kernel source tree

A cheatsheet of modern C++ language and library features.

A small C compiler

GUI image optimizer for Mac

A microbenchmark support library

🖥 A virtual Apple Macintosh with System 8, running in Electron. I'm sorry.

Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)

Fast PlayStation 1 emulator for x86-64/AArch32/AArch64/RV64

xhyve, a lightweight OS X virtualization solution

A running-jumping-swordfighting game I made on the Apple II from 1985-89

Game Boy emulator written in Python

A Fast and Easy to use microframework for the web.

A book teaching assembly language programming on the ARM 64 bit ISA. Along the way, good programming practices and insights into code development are offered which apply directly to higher level la…

SCons - a software construction tool

A cross-platform C and C++ unit testing framework for the 21st century

All CPU and MCU documentation in one place

Online OR1K Emulator running Linux

The Computer History Simulation Project

A Symbian OS/N-Gage emulator

An open-source Tomb Raider 1-5 engine remake

Floppy drive emulator for Gotek hardware

🎹🎶 A baremetal kernel that turns your Raspberry Pi 3 or later into a Roland MT-32 emulator and SoundFont synthesizer based on Circle, Munt, and FluidSynth.

Mesen is a cross-platform (Windows & Linux) NES/Famicom emulator built in C++ and C#

Software Automatic Mouth - Tiny Speech Synthesizer

A repository of gate-level simulators and tools for the original Game Boy.

The complete archive for DOOM for the 3DO

Cheerp - a C/C++ compiler for Web applications - compiles to WebAssembly and JavaScript

Experimental C# Playstation Emulator