Been thinking more about the discrete transistor computer.
I went through my notes and research from over the years and was surprised to see how many files contained useful information.
I even have simulations testing out different Diode-Transistor basic logic circuits.
Much of the original work assumes a fairly arcane and specific Instruction Set Architecture -- I thought it would be prudent back then to make it 'brainfuck'.
I think I will change this.
So--
1. Keep the flip chip inspired design (ie one small PCB per flip flop, roughly speaking one PCB will do the job of one TTL IC)
2. Review choices for ISA--survey Dieter's page for the MT15, check uxn again, have a look at CHIP-8 and see if there is anything worth recording...
3. Draw up a new data flow diagram. If I opt for this to be a stack machine, I should find my binders on stack machine architecture.
4. Is this a four-bit machine? Or 8-bit? How will memory addressing work?
@dirtycommo PDP-8 instruction set is an option too!
@aartaka i did some research, and keeping it simple is definitely the order of the day.
i am thinking of directly memory-mapping about... 128 bytes of RAM into the CPU.
