Here's a Prop project that I've been working on...
I finally got to the point where all the LEDs are working.
Still have buttons and LCD to wire up...
For some reason (still to be determined), I decide to create a 4-bit CPU trainer.
The idea is that this could be used to teach people how CPU's work...
This is about the simplest CPU possible that can do anything fun.
This is actually going to be an RL4000 emulator, but it can also be constructed in real form from DIP chips.
The CPU design is shamelessly copied from the Nibbler:
I asked Steve and he emailed the Nibbler design has a CC-BY-SA license.
He also asked that I not use the name "Nibbler". So, I'm calling this RL4000.
Here are some great things about Nibbler (AKA RL4000):
1. Super simple
2. Can be realized with DIP chips
3. Comes with an Assembler written in MFC (I love MFC)
4. Comes wiht a Simulator (also in MFC)
5. Comes with fairly complex games and other code
Hopefully this RL4000 Emulator will add
1. Lots of LEDS (everybody likes LEDs) for visual indication of inner workings
2. A way to easily change out programs
3. A way to escape Emulator and enter an interactive mode