40 column editor, macro-assembler and debugger for the Commodore Vic-20

Microsoft BASIC for 6502 Microprocessor - Version 1.1

The original source code of Microsoft GW-BASIC from 1983

C64's VIC-II video chip on a Tang Nano 9k FPGA with HDMI

"One Man Unix", archive of the Unix clone written (before Linus !) by the late Dr Steve Hosgood, and extended by Terry Barnaby

various C projects for Tektronix4404

switchable 68K CPU-Core

A "Blue Screen of Death" & debugger for your Commodore!

Issuing arbitrary Commodore DOS commands from the command line

Working on the RP2350PC from Olimex

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

Prog8 Blob Linker Example

experiments with the commodore iec bus

A collection of utilities for dealing with C64 OS files.

The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes

ESP8266/ESP32/Arduino custom modem<->internet simulator with lots of features

A Commodore (CBM) BASIC V2 interpreter/compiler written in Java

Linux on a Commodore C64

A popular word processor from the 1980s ported to the Commander X16

RISCV implementation in Verilog (RV32I spec)

FPGA GPU design for DE1-SoC

Implementation of a SUMP compatible logic analyzer for the Arduino uno, mega or due

Build your hardware, easily!

A powerful, feature-rich, random test data generator.

Basic lightweight tacacs+ container for testing Cisco devices

Implementation of a SUMP compatible logic analyzer for the Arduino

OpenBench LogicSniffer repository