[dominicbeesley]

Thanks for the NENIN pointers - that sounds about right though I'm wondering if NENIN is sampled at a clock edge to restart the cycle or just latched somehow. It being fed straight to the bus buffers sounds plausible and would make sens. I'll have to rig something up to try some really short pulses on NENIN to find out how it is latched or registered.

I was wondering about how calls into other pages are usually done. Is it usually with a XPPC?

I suppose the pointer relative jumps would be a nice way to do a vtable for object oriented code?