Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
A fast, unobtrusive and modern cross-platform GUI toolkit. Agar fully exploits hardware acceleration where available, but also supports simple frame-buffer interfaces. Agar is stand-alone and easily portable to new platforms and graphics systems.
SPL is a cross-compiler for a simple language. It produces plain 6502 assembly code which is then assembled to binary or specialized formats for the Apple II including 140k disk images for emulators. "SPL" = "Simple Programming Language"
A small, self-hosting 16bit Forth system
VolksForth is a 16bit Forth System with the goal to produce a manageable Forthsystem for computer systems with restricted system resources.
A portable rebuilt of the Atari 2600 console. The target is to rebuild the hardware all inside a box which will be used as it's own control. The games will be stored into a Flash memory and a menu-driven TV interface, in a BIOS, will manage the options.
an implementation of the Inflate decompression algorithm corresponding to deflate compression as used by gzip and compatible with RFC 1951 Written in Z80 assembly language, with memory paging support for the Sam Coupe