> The cache and mmu are probably harder than the cpu :-) I'm not sure the PDP-10 even _had_ cache; I'd have to do some digging on that score. And I have no idea what it had for an MMU. The only non-power-of-two-word-size machine I've ever actually used, as far as I can recall, was a PDP-8. I'm interested in NetBSD/pdp10 less for personal nostalgia value than for the code cleanup it would enforce.
SIMH has PDP-10 support; that would probably be a useful resource for anyone taking on a PDP-10 in an FPGA. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mo...@rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B