Jainja is a JVM (Java Virtual Machine) written in Java
EDITEL is a screen editor/code generator for GnuCOBOL programmers
A minimalistic but complete standard Forth compiler in C
console-mode visual binary diff
A small, self-hosting 16bit Forth system
BDOS is a 16 bit educational operating system written in NASM.
Over 600 classes for Web, RFC & File Management