RAD-Doom (Doom on C64/C128 using the RAD Expansion Unit)

Reload - Portable Cycle-Stepped Emulator for Retro Computers

C64 emulation using the neo6502 development board

A versatile DIY serial terminal

Fast Assembler type in assembler from COMPUTE!'s Gazette Magazine

Display a Koala Pad Picture in Assembly Language on the Commodore 64

Even newer Custom Firmware for Xiaomi Cameras based on Hi3518ev200 Chipset. It includes free RTSP, ONVIF and other improvements based on the work by roleoroleo

ZX Spectrum 48 modern cpld based clone.

Schematics and code for the VIC20

A synchronous bus version of the cycle and bus accurate 6502

A Vic-20 clone created with [almost] all readily available parts

The WE816 is a 16-bit 65816 based system with 512K of System RAM, 96K of System ROM, 32K of video RAM, a TMS9918 graphics processor and an AY-3-8910 Sound chip. The system runs a custom version of …

Example app to control FT232 over USB

6502 learning platform in a familiar form factor

Easy 6502 Single Stepping based on Steve Wozniak's circuit in the Apple-1 Manual

Example of how to use the 1351 Mouse in your Commodore C64 Basic Programs as well as assembling a customer mouse driver.

Inference code for Llama models

Warren Toomey's 8-Bit von Neumann Crazy Small Computer

WIP disassembly of Acorn MOS, operating system for Acorn's 8-bit Master series

SPI like protocol interfacing via6522 (oric atmos) with teensy 3.2

Bitbang SPI with MOS 6502 and 6522

A digital logic designer and circuit simulator.

A TTL implemention of SPI

System, apps and tooling for the Gigatron TTL microcomputer

Microsoft BASIC for 6502 (Commodore, Apple, KIM-1, AIM-65, OSI, ...)

M68K emulation for AArch64/AArch32

1980's-style home computer based on the Hitachi HD6309 CPU and Yamaha V9958 VDP

M65C02