So....
For those monitoring this:
- Pointless
- Silly
- But Crazy achievement in Node RED
If not following: What has been achieved here, is Emulating A CHIP8 Console CPU with Node RED only
It's now become quite a project of mine, and has become an almost Full CHIP8 Console.
The following changes/break throughs have been made since I last posted:
- No longer needs ANY external lib/Node RED Module
- The rendering is now achieved with a Native Canvas object in a browser window (HTTP IN)
- I have employed a type of RFB to send pixel changes over a web socket to the Browser window
- Now Supports Input. YES!!! you can now play the games
- Now renders Audio - square wave only. YES!!! audio is now rendered
- Reduce the use of
functionnodes where possible (@TotallyInformation
)
This started as a fun time waster, and I quickly realised what has been achieved here...
A CPU Stack being emulated / Run inside a Node RED flow!
It's pretty crazy to think, you can see the CPU being executed in a flow.
- Import The flow (again, no external libs or Node RED modules are needed - its using all core nodes)
- Deploy
- On a new browser tab - Go to http://x.x.x.x:1880/chip8
- Click the title (this is to allow audio to be played - most browsers require interaction for audio to be allowed) - the video panel should go black
- Go back to the flow editor, Inject your chosen ROM (I have included 2)
- Inject
Start
There are some CPU instructions that I need to fix - but mostly its playable.
To load a new ROM - you have to redo the above steps (you might need to disable/enable the flow - Hey it's a Console being emulated in Node RED, give me a break
Enjoy.
Keys for Space Invaders as example.
W - Start new Game / Fire
Q - Move Left
E - Move Right
Flow
flows-2.json (33.4 KB)
This whole thing started when @cymplecy implemented an MQTT Broker in Node RED - so wanted to push the bounderies of what is possible after seeing his work.
Have a great weekend!
