An operating system based on the best Windows NT design principles
The Open On-Chip Debugger
Free operating system for Atari computers, and more.
An USB programmer for PIC, dsPIC, AVR, serial memories
TUI file manager (NC clone) with built-in Zip for DOS and Windows
Transfer disks and disk images between the Apple II and the real world
Software development for 4Mb portable, using Z80 CPU and AA batteries
A tapas/topaz/sapphire kernel optimized for smoothness and low-memory
NES/Famicom emulator based on FCE Ultra.
Several MsDos, 16 bits, applications
Program and Game Manager for DOS
Graphics mode console I/O for the TRS-80 Color Computer
A high quality MP3 encoder
Building and running ancient Linux on Windows