[c-nsp] 6500 vs 7600 differences tracking

[Phil Mayers]

Gert Doering wrote:
> Hi,
> 
> On Thu, Apr 10, 2008 at 11:45:24AM +0100, Adam Armstrong wrote:
>> But it's a bit bare. Is anyone interested in having a go at documenting 
>> some of the differences? I'm sure it would help a great many people 
> 
> I'm happy to contribute, but knowing myself, I'm a bit too unorganized
> right now to actually shepherd the process - so I'll provide bits and
> pieces, and someone else needs to lump them together.

I've added some stuff; it's probably wrong as I have limited knowledge 
of the 7600-specific bits.