Anyone know if an emulator exists for the newer embedded PPC's from IBM, 
specifically the 405 and 440 ASIC cores?

On a related note, I downloaded a recent snapshot of bochs last night ( 
http://bochs.sourceforge.net ).  There has been an increase in the work being 
done over the last several months, and bochs is nearing a 2.0 release.  
Mandrake is sponsoring some of the work now, which probably helped move things 
along.
I checked the hello world sample app, and it boots OK with GrUB on bochs.  I 
also checked a DOS app which tests ATA disks, and the ATA emulation does not 
seem to be fully ATA compliant yet, but I think it might be good enough to use 
for beginning some libchip style ATA driver work.  The emulation supports I/O 
cycle access only, not memory mapped access, which makes it not quite as 
interesting as if it supported a full PCI-ATA controller emulation, but it is 
a start. The emulations supports some of the DMA modes, but I'm not sure which 
ones yet, but DMA rather than PIO is definitely  one of the features which 
should be in an ATA driver which goes into the source tree.

-- Chris Caudle




