refrence machine

[Peter Grehan]

>> The G5 is a true 64-bit CPU with a 64-bit MMU. 32-bit user-mode code 
>>can run unchanged, but the kernel has to deal with the 64-bit MMU and 
>>various other bits and pieces that are painful to implement.
> 
> So it's lack of code rather than anything more sinister? Good.  I had
> heard some complaints about a dodgy OpenFirmware implementation.

  That could still be possible ! The loader exercises OpenFirmware a bit 
and it seems to work OK.

> I have a dual G5 PowerMac as of quite recently, and the
> second-to-most-recent SNAP booted as far as probing for KDB backends
> which was a pleasant surprise. ;)

  That's the loader working, but the kernel really doesn't get far 
before bombing out.

later,

Peter.