C compiler and dev kit for the z80 with assembly language libraries.
16 bit real mod minecraft clone running in bios
C-BIOS is an open source BIOS for MSX computers.
Filemgr a BBS file & .tic tosser
An Atari-ST floppy copier via parallel port
The Arcrascent Operating System
Virtual Screensaver is a windows based program designed on Winasm
Design text screen masks on your Commodore 64