Original Apollo 11 Guidance Computer (AGC) source code
A tutorial on cross compiling for the 6502 CPU
C compiler and dev kit for the z80 with assembly language libraries.
Simple ⇒ Object-Oriented ⇒ Functional
Graphics mode console I/O for the TRS-80 Color Computer
BASIC Compiler and Interpreter
Building and running ancient Linux on Windows
Open Watcom C/C++ compilers and tools Fork
Homebrew toolchains for wii, gamecube, 3ds, ds, gba, gp32 and psp
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)
Moved to https://github.com/davidgiven/ack
A calculator capable of complex arithmetics
High-level, meta-language, trans-compiler with virutal machine
Re-imagining of Heisermann's classic Self-Programming Robot
Light Weight & Customizable Assembly Compiler & Virtual Machine