Charlie Stross on Nostr: Functional 16-bit CPU built and runs in Excel, 3Hz processor includes 128KB of RAM, ...

Functional 16-bit CPU built and runs in Excel, 3Hz processor includes 128KB of RAM, 16-color display, and a custom assembly language

https://www.tomshardware.com/pc-components/cpus/functional-16-bit-cpu-built-and-runs-in-excel-including-128kb-of-ram-16-color-display-and-a-custom-assembly-language