Emulators that run real CoCo software, browser tools for everyday disk work, and utilities for reverse-engineering vintage code. Most of it lives on GitHub under an open license — fork it, flash it, improve it.
A self-contained Color Computer 2 & 3 emulator for the TTGO VGA32 ESP32 board. Connect a VGA monitor and a PS/2 keyboard and you have a complete CoCo on a board that fits in your palm — no host PC, no OS, just a faithful 6809 machine powered on. Now open source, built on off-the-shelf hardware you can buy on Amazon.
A complete CoCo 2 emulator running on an ESP32-S3, ported from Ciaran Anscomb's XRoar. Cycle-accurate MC6809 CPU, MC6847 video with all graphics modes, dual 6821 PIAs, SAM6883, a WD1793 floppy controller with .DSK/.VDK support, USB-HID keyboard input and SPI TFT output — all on a chip.
A browser-based workbench for CoCo disk images. Create and edit .DSK and .VDK volumes, browse directories, and move files between images and your machine — no native software to install. Hosted, fittingly, on port 6809.
Decode and display native Color Computer graphics on a modern machine — a fast way to peek at the artwork, title screens and saved images that lived on CoCo disks and cassettes, without booting real hardware.
An AI-assisted disassembler skill for Motorola 6809 / 6309 machine code. Turn raw CoCo binaries back into readable, annotated assembly — a leg-up for documenting, porting and preserving vintage software whose source has long been lost.
A side-quest beyond the 6809: a 1976 Apple-1 emulator written in Python, MOS 6502 and all. A compact, readable model of where personal computing began — and a fun companion piece to our Color Computer work.