https://github.com/ColinEberhardt/atari2600-wasm

An Atari 2600 emulator written in AssemblyScript compiled to WebAssembly
https://github.com/ColinEberhardt/atari2600-wasm

assemblyscript atari2600 webassembly

Last synced: about 1 month ago
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An Atari 2600 emulator written in AssemblyScript compiled to WebAssembly

• Host: GitHub
• URL: https://github.com/ColinEberhardt/atari2600-wasm
• Owner: ColinEberhardt
• Created: 2019-12-02T21:43:17.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2023-01-05T02:10:33.000Z (almost 2 years ago)
• Last Synced: 2024-11-11T00:02:16.948Z (about 1 month ago)
• Topics: assemblyscript, atari2600, webassembly
• Language: JavaScript
• Size: 2.2 MB
• Stars: 56
• Watchers: 5
• Forks: 9
• Open Issues: 17
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-assemblyscript - ColinEberhardt/atari-2600 - Atari2600 emulator (Projects / Games)

README

        
# WebAssembly / AssemblyScript Atari 2600 Emulator 

I've been fascinated with the 2600 ever since reading [Racing the Beam](https://www.amazon.co.uk/Racing-Beam-Computer-Platform-Studies/dp/026201257X), the idea of a computer that doesn't have enough memory to support video RAM is just nuts! This project is an excuse to have a play with [AssemblyScript](https://docs.assemblyscript.org/), and explore the 2600 further.

I'm implementing the 2600 by implementing features as they appear in the [Atari 2600 Programming for Newbies](https://cdn.hackaday.io/files/1646277043401568/Atari_2600_Programming_for_Newbies_Revised_Edition.pdf) guide.

## Other reference sources

 

  - Addressing modes - https://slark.me/c64-downloads/6502-addressing-modes.pdf

  - 6502 reference - http://www.obelisk.me.uk/6502/reference.html

  - Another 6502 reference - https://www.masswerk.at/6502/6502_instruction_set.html

  - https://en.wikibooks.org/wiki/6502_Assembly

## Progress

 - [Atari 2600 Programming for Newbies](https://cdn.hackaday.io/files/1646277043401568/Atari_2600_Programming_for_Newbies_Revised_Edition.pdf)

  - [x] Session 1: Start Here

  - [x] Session 2: Television Display Basics

  - [x] Session 3: The TIA and 6502

  - [x] Session 4: The TIA

  - [x] Session 5: Memory Architecture

  - [x] Sessions 6 & 7: The TV and our Kernel

  - [x] Session 8: Our First Kernel

  - [x] Session 9: 6502 and DASM – Assembling the basics

  - [x] Session 10: Orgasm

  - [x] Session 11: Colorful colors

  - [x] Session 12: Initialization

  - [x] Session 13: Playfield Basics

  - [x] Session 14: Playfield Weirdness

  - [x] Session 15: Playfield Continued

  - [ ] Session 16: Letting the Assembler Do the Work