This project is starting to get a serious amount of skulls and followers which on one hand is nice, but on the other hand is giving me pressure to actually move forward in a decent speed - no slacking off here :-)
Well, just as an update of what I'm currently doing the last few days:
The emulator now loads code, sends logdata via udp and have a simulated UART on a tcp port.
I've also started working on the ALU bitslice for that can handle all 16 operations my instruction set mandates. I'm doing that in both in the simple Falstad circuit simulator for the overall view of it with logical blocks, and also on transistor level in LTspice to check timings/performance.
Hopefully the ALU design will be done this week so I can solder up one of the eight slices plus the control logic for it on perfboard, run some basic tests and then send for a full set of slice pcbs from dangerous prototypes after the tests.