How to create an OS from scratch

Embedded graphics library to create beautiful UIs for any MCU, MPU and display type.

A Compiler Writing Journey

A small C compiler

Tutorial: Writing a "bare metal" operating system for Raspberry Pi 4

Official NetHack Git Repository

Checked C is an extension to C that lets programmers write C code with bounds checking and improved type-safety. The goal is to let people easily make their existing C code type-safe and eliminate …

Go-style concurrency in C

Bare metal Raspberry Pi 3 tutorials

A C++ bare metal environment for Raspberry Pi with USB (32 and 64 bit)

GPGPU microprocessor architecture

Hardened allocator designed for modern systems. It has integration into Android's Bionic libc and can be used externally with musl and glibc as a dynamic library for use on other Linux-based platfo…

Lua RTOS for ESP32

The RISC-V Virtual Machine

cs140e course materials.

A UNIX-style Operating System for the Waikato RISC Architecture Microprocessor (WRAMP)

By the Bluebook implementation of Smalltalk-80

Cross Platform Fixed Point Maths Library

Pycopy - a minimalist and memory-efficient Python dialect. Good for desktop, cloud, constrained systems, microcontrollers, and just everything.

68k Hardware Emulator

Plan 9 History, from 1992-09-21 to 2015-01-10.

A minimal new SSH client for Mac OS 7/8/9

Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.

M68K emulation for AArch64/AArch32

In-kernel cache based on eBPF.

An open source sort-of CP/M 2.2 distribution.

Obuscated C Christmas programs

Apple 1 Emulator with wireless PAL RF Output

FreeBSD adapted for CHERI-RISC-V and Arm Morello.

Example python (numpy) -- CUDA installable package with a C-extension library