How to create an OS from scratch
Tools and Z80 engine for creating adventure games. (RUST)
OS bootable from Linux,Windows and others partitions as auxiliary OS
Flexible and eXpandable Cpu simulation
Object-oriented RAD framework for Turbo Pascal 7.0
Mayax is a 32-bit hobby OS with windows style GUI.
A hamradio beacon project on an AVR MCU
A compiler for creating games on MOS-65xx-based computers