I got about $90 worth of 74-series chips, and am working on designing an architecture for it.
I've done some basic #ISA design before, but have trouble designing ISAs where pointers are larger than the word size. So, I've never really made an 8-bit architecture I've liked.
I designed a really simple 16-bit arch which I wanted to use, but I don't have enough chips! So I'm having to try to make an 8-bit arch....

#74series

Chip swapping. Still need a 7425 and a couple of 74LS01. The original batch of 74LS01s I bought from eBay were all faulty. Fortunately, the seller refunded me straight away citing a potential bad batch. So I'm now waiting for new ones (and the 7425) and we can get testing.

#cifer #74series #retrocomputing