Top 78 6502 open source projects

Integrated Development Environment for the 8-bit Nintendo Entertainment System

Yet another 6502 emulator that one day dreams of being an Atari 2600.

Nintendo Entertaiment System emulator and NSF/NSFe Music Player (Linux, FreeBSD, OpenBSD and Windows)

A JSON parser written in 6502 assembly language.

A cycle-accurate, cross-platform NES emulator written in C++

The original IBM PC and other machine emulations in JavaScript

A Javascript NES Emulator

Millfork: a middle-level programming language targeting 6502- and Z80-based microcomputers and home consoles

Emulate 6502-based microcomputer systems in Python

All you need to start programming 6510 assembler for the Commodore 64 on Microsoft Windows or Linux.

Byte-aligned, efficient lossless packer that is optimized for fast decompression on 8-bit micros

Proto Language AsSeMbler for All (formerly Apple)

Modern C64 Forth

A template for compiling 6502 assembly code with ACME in VSCode

A MOS Technologies 6502 System Simulator

Source code for an unpublished Days of Thunder game for the NES, not to be confused with the published game released by the same publisher this game was developed for, Mindscape, in 1990.

Chipdisk Nacional Vol.1

A very fast BBC Micro emulator.

A portable NES simulator for embedded processors

Sources for most of my C64 productions

Kicad Schematic Library for the 6502 microprocessor and associated ecosystem (MOS, CSG, etc)

Notepad++ Syntax Highlighting for 6502 Assembly (and NESASM)

A JavaScript NES emulator.

A latency-hating emulator of 8- and 16-bit platforms: the Acorn Electron, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Commodore Vic-20, MSX 1, Oric 1/Atmos, Sega Master System and Sinclair ZX80/81.

PCjs Machines 1.0 (archived)

Another NES Emulator - written for fun & learning - first implementation of wideNES

Self-hosting metacompiled Forth, bootstrapping from a few lines of C; targets Linux, Windows, ARM, RISC-V, 68000, PDP-11, asm.js.

Javascript BBC micro emulator

fork of the xkas (v14) cross assembler

An expandable SBC-version of the Apple 1 computer, easy to get started with and lot of cool stuff that can be added to it!

cc64 is a small-C compiler written in Forth, hosted on the Commodore C64, Plus4 and C16 with 64k, and on the Commander X16. It is targeting the 6502 CPU.

A horizontal space shooter for Commodore 64.

MOS 6502 emulator written in Rust

6502 code generator for sprites, fonts, images and more

Card game for the Famicom, written in 6502 assembly

🤓🕹💾 This hobby project contains software implementations of old microprocessors and complete computer systems. I'm very interested in retrocomputing and this is how I learn about the inner workings of these old, classic and amazing computers and game consoles.

My Homebrew 6502 breadboard computer with my own #FORTH implementation

6502 CPU emulator, assembler and disassembler written in Go

6502 Forth-83 dialect for the Commodore PET 2001

Tamagotchi Tech Specs

Use a Raspberry Pi as fast mass storage solution for your Commodore 8-bit computer using just the datassette port.

A 65C02 profiler

A Subroutine Threaded Code (STC) ANS-like Forth for the 65c02

Adds syntax highlighting to 65816/65C816/65802/6502/65C02 files in Atom, with extra support for various compilers.

An assembler for the 6502 microprocessor written in Ruby

A fork of loopy's ASM6, a 6502 assembler.

NES / Famicom emulator for iOS, Mac, Raspberry Pi, Windows, Linux and RetroArch.

Fully documented and annotated source code for the disc version of Elite on the BBC Micro

A PCB being made while watching Ben Eaters "Build a 6502 computer" video series. Includes the computer itself, a standalone slow clock and an Arduino Mega shield for the bus monitor sketch..

An Understandable 6502 Emulator

Notepad++ Syntax Highlighting for 6502 Assembly (and NESASM)

A minified replica of the Apple 1

6502 based architecture for OpenComputers

NES emulator in javascript.

🔄 Continuous integration for NES homebrew that adds screenshots taken in the cloud.

Mad Pascal Compiler for 6502 (Atari XE/XL, C64, C4Plus)

A .Net-based Cross-Assembler for Several 8-Bit Microprocessors

Roland Gustafsson's RWTS18 source code.

A curated list of original and reverse-engineered vintage 6502 game sourcecode.

Simple rebuilt of the classic Snake game for the NES in C using the cc65 cross compiler.