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   Techokami (techokami@woof.tech)'s status on Thursday, 06-Feb-2025 11:14:04 JST Techokami

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   2ND PLACE (34%): MIL-STD-1750A
   A decomissioned and declassified military spec? No, that's too cursed... and it nearly won, oh dear lord. This is effectively a public domain ISA. While there are some companies that still produce CPUs that implement it, it's mainly for space-related stuff (because it's all rad-hardened) or are not available to be bought by normies, so a physical implementation would have to be done with FPGAs. It's a pure 16-bit architecture. By that, I mean the data bus is 16 bits, the 16 registers are 16 bits each, the address bus is 16 bits, and the smallest data unit you can work with is 16 bits. Interfacing with anything 8-bit is going to be a nightmare. It is possible to increase memory with the MMU specified in the documentation, but that's more of a bank switching solution. You can read the ISA docs here and take a sigh of relief at what was narrowly dodged: http://www.xgc.com/pdf/mil-std-1750a-1.7.pdf