.. and just to display my complete technical mastery, I failed to echo this message to the list the first time around =\ Quoting Guido Guenther <agx@sigxcpu.org>: > > 0x211c4018 is a mapped address, which you can't use that early in a boot. > Isn't 0xa8000000211c4000 in xkphys and therefore unmapped? The PROM only > seems to look at the lower 32bits of PC though. > Puzzled, > -- Guido That's what I thought too. I did notice that the 64 bit kernel seems to refer to some 32 bit compatibility address spaces, so I'm probably confused on what gets used when. FYI, the load address I'm using (0xa800000020004000) is the one specified in the irix headers for an IP30 kernel (as I read it anyway) and is very close to the entry point IRIX uses on the same machine. Erik -- Erik J. Green erik@greendragon.org