The CORE-V CVA6 is a highly configurable, 6-stage RISC-V core for both application and embedded applications. Application class configurations are capable of booting Linux.

Super Mario World (SNES) Widescreen Project

Working draft of the proposed RISC-V V vector extension

The development kit for over a hundred z80 family machines - c compiler, assembler, linker, libraries.

An Operating System for Z80 computers, written in assembly

BIOS for Intel 8088 based computers

Project for accelerating SNES games using the SA-1 chip.

PC-MOS/386 v5.01 and up, including cdrom driver sources.

Command-line cross-compiler of assembly language for Z80 CPU.

System Software for Z80/Z180/Z280 Computers

Sonic 1 Disassembly

Official RC2014 repository for hardware schematics / software and more!

CP/M for the 6502

Minimal 68000-based single board computer

A project to create unencumbered open-source ROMs for use on selected retro computers

mGB - Nintendo Gameboy MIDI control for Arduinoboy

nes tetris training rom

Homebrew 65C02 computer on a backplane

Genesis development environment for Linux.

Source code of some NES games

Data compressor for 8-bit computers and low-end platforms

Firmware to allow functional testing of ZX Spectrum hardware and related clones. See the wiki for full details.

NES homebrew inspired by Super Smash Bros

Cray PVP Simulator

Code related to the Motorola 68000 microprocessor.

Most of the MSX software developed by Konamiman since the 1990s

ProTracker 2.3F for Amiga

Neo6502 Modern Retro Computer with W65C02S processor and RP2040 memory and peripherals emulator