Overview:
| CPU | Mini Comp |
| Data | 4 bits |
| Memory | 16 bits |
| Registers | 3 1/2 |
| Architecture | Von Neumann |
| Technology | TTL |
| Status | Killed in favor of an 8-bit processor |
| Successor | MicroComp |
| Time period | November 2017 |
Problems:
- Required almost as much hardware as an 8-bit processor
- Really bad instruction set
When I started designing CPUs, the whole point was to eventually make one out of TTL logic, but this never happend. Mini Comp was meant to fix that problem, now that I actually knew how to make a CPU (or so I thought). 4 bits shouldn't be too large right? It turns out that I did not have any 4-bit registers on hand, so I had to use 8-bit registers anyway. Might as well make an 8-bit computer.
Files:
Notes (txt)
Documentation (txt)
Macros (txt)
I recommend the EAGLE schematic over the PDF.
Schematic (pdf)
EAGLE schematic (sch)