locore.s isn't as scary as pmap (I think^H^H^H^H^Hhope)
I printed out the locore.s from NetBSD/macppc last night and managed to read through most of it on the tram into work today. I also printed out FreeBSD/alpha's so I can try and work out how they differ in what they do. Then I get to go through and implement a locore for FreeBSD/PowerPC. It doesn't look _as_ scary as pmap. I'm probably cursing myself here though. =)
I finally got my car back today. I had a close encounter with another guy coming out of a petrol station last year and hadn't got around to getting it sorted out until now. The car looks a lot happier now. =)