NES Pong

A simple Pong game for the NES, written in 6502 Assembly and playable in the browser using jsNES.

Overview

This project is a two-player Pong game for the Nintendo Entertainment System (NES). The game is written in 6502 Assembly and compiled using NESASM. The compiled ROM is then served in a web browser using the jsNES emulator.

Controls

• Player 1 (Left Paddle)

  • Up: W
  • Down: S

• Player 2 (Right Paddle)

  • Up: Up Arrow
  • Down: Down Arrow

• Start Game: Enter key or click the Start button

Project Structure

• src/asm/ - Contains the 6502 Assembly source code
• public/ - Contains the web files served to the browser
• bin/ - Contains the NESASM compiler binary

Building the Project

1. Make sure you have Node.js installed
2. Install dependencies: pnpm install
3. Build the project: pnpm run build
4. Serve the project: cd public && python3 -m http.server 8000
5. Open your browser to http://localhost:8000

How It Works

1. The 6502 Assembly code (PongTwoPlayer.asm) is compiled using NESASM to create a NES ROM file
2. The ROM file is copied to the public/roms directory
3. The jsNES emulator is used to run the ROM in the browser
4. The game is controlled using keyboard inputs mapped to NES controller buttons

Troubleshooting

If you see a black screen:

• Check the browser console for errors
• Make sure the ROM file is being loaded correctly
• Verify that the jsNES library is being loaded

Credits

Created by Jakob Langtry. Powered by jsNES.