ESPTerm breadboard adapter PCB source files

Allows commandline builds, and project creation for Altera's Quartus II

Win11 tray app for the Griffin PowerMate USB

A RP2040 Charlieplexing library using PIO

A replacement for the classic TMS9918A/TMS9929A VDP, powered by a Raspberry Pi Pico

A FAT filesystem with SDIO and SPI drivers for SD card on Raspberry Pi Pico

A YM2149 (aka PSG) emulator written in C.

A FAT filesystem with SDIO and SPI drivers for SD card on Raspberry Pi Pico

6502/65C02 emulator library (C99)

The HBC-56 (65C02/TMS9918A/AY-3-8910 retro computer) fully emulated on a Raspberry Pi Pico

TMS9918A emulator library (C99)

inofficial mirror of http://www.6809.org.uk/dragon/xroar.shtml (licensed under GNU GPL v2 or above)

Motorola 6809e 8-bit CPU emulator

An emulation of the MC6809 cpu

A Motorola 6809 emulator library---include a MC6809 in your application!

The portable, extendable 6809 simulator

Arcade and Pinball games music player by Richard Bannister

YAME (Yet Another MO5 Emulator) is a Thomson MO5 emulator playable online

An extendable emulator of the 6x09 system representative of the x09 architecture family

Fake6502 with numerous bug fixes, plus fake65c02, a CMOS chip emulator. Public domain 6502 emulator and public domain 65c02 emulator.

Vic-20 emulation on a Raspberry Pi Pico

Frotz Z-machine ported to a Raspberry PI Pico designed to run on the ebadger LodeRunner platform

The Sorbus Computer is a very simple 65c02 computer for tinkering and learning

RP2040 Raspberry Pi Pico Bare Metal code

SIDKick -- the first complete SID 6581/8580-drop-in-replacement that you can build yourself

Micro-Soft Altair BASIC 3.2 source

Spins of Grant Searle's MultiComp project on various hardware

Forth for the ARM Cortex-M3