Z80 open-source silicon clone. Goal is to become a silicon proven, pin compatible, open-source replacement for classic Z80.

Amstrad CPC Plus version of the CPC PICROM

A Zilog Z80 and Intel 8080 systems emulation

cc65 - a freeware C compiler for 6502 based systems

A lightweight GUI framework for your ZX Spectrum program. It allows you to have simple scenes with buttons, labels, edits, images and selects.

fuse 1.6.0 and libspectrum 1.5.0 with CoBra1 (64k & 80k) and CoBra2 (Turbo Spectrum) profiles

A handheld tool that gives a visual indication of the frequency or voltage at the probe.

Multiple projects for the Agon light: strings, os boot loader for Zeal8bit and TRS-OS, interactive hexdumps and gunzip

Derived from Cobra, an experimental board for testing all kind of mods.

Improved version of first ESP32 NerdMiner

Pac-Man emulator for Sinclair ZX Spectrum

Schematics and code for the VIC20

Scorpion ZS-256 Turbo+. Russian ZX Spectrum clone. Schematics and PCB.

Enhanced 4164 DRAM tester using March C- algorithm and access time

BBC BASIC for the Z80 CPU

The main Oolite repository.

ESP32 based Amstrad CPC emulator

A command line interface for WhatsApp

Dram tester for 4116 and 4164/256

HC2000 Project

A Z80 retro computer, ZX Spectrum compatible, can also run CP/M.

The Reconstruction of ZZT

(Almost) development backup of ZZT's original source code.

A software I2C implementation to run on any GPIO pins on any system

A full featured Arduino display library for 1-bit per pixel OLED, LCD and e-paper displays

Actually sort files on your FAT drives