[kn100]

a slightly different (but close enough) Hitachi CPU also powered the Cybiko - a wacky games console few have heard of. I tried writing a disassembler for that particular cpu a while back. Was an interesting platform and oh man the documentation at least to me was gorgeous: github.com/kn100/cybemu/

[dagmx]

Link to the cybiko https://en.wikipedia.org/wiki/Cybiko

That is a really wild design

[phs318u]

Love it!

“The concept for the device emerged from social research conducted in six countries, which identified a need for digital communication among youth. … a radio protocol was patented. This protocol allowed up to 3,000 Cybiko devices to form a network without using auxiliary stations.”

Fascinating!