[xorcist]

> why would you want your disk drivers to be able to read write video memory etc?

That is a much bigger issue than the CPU architecture, as it has more to do with how the peripheral hardware works (firmware, DMA, etc.), but I appreciate the effort.

[willvarfar]

Well its how the CPU architecture exposes the hardware to software i.e. drivers. The Mill does MMIO but doesn't have rings.