Very, very, very cool and informative! It's an excellent reminder of how much we take gobs of memory for granted.

I never knew about issues with ethernet interfaces being too busy, so this finally explains things I saw way back when and never properly understood.

Interestingly, SuperH is one of those architectures that still has good toolchain support even though most people aren't even aware of its existence. The most recent quarter's NetBSD pkgsrc directory for SuperH has 5,900 modern packages, all built on a SuperH system with just 64 megabytes:

https://cdn.netbsd.org/pub/pkgsrc/packages/NetBSD/sh3el/9.0_...

It's wonderful to see preservation efforts like this. Now I wish I had a Dreamcast!