> 
> > > Thereby adding complexity to ... lots of things, most importantly the
> > > code which implements the basic read-write path.
> > 
> > But wouldn't we need that complexity to be able to support choosing,
> > at run time, between a byte-swaping and a non-byte-swapping bridge
> > chip?
> 
> Not necessarily.
> 
> A different bridge will have a different driver.  A different driver
> will include different code.

Ok.

Well, I guess I'll wait until I have a powerMac to play with. If there be
problems, I'll dig in to it then.

Take care,

Bill