Japan tried to build an operating system for the entire world, then the US government intervened

Something similar happened to Slovene Iskra Triglav computer which was quite advanced for the time (capable of running three different CPUs) but then caught in between US-Soviet cold war/embargo while trying to sell them to Soviet Union.

Three CPUs with different architectures on one device sounds crazy. That’s amazing.

PS3 comes to mind

Though in embedded, thats fairly normal.

I’ve got a $1 linux embedded SoC that has a 64 bit riscv core, a 32 bit riscv core for running realtime stuff and a low power embedded 6502 on it too because why not.

Cool, which SoC?

SG2002/SG2000 and the CV1800B chips by MilkV