On Fri, 2010-06-11 at 22:19 -1000, Mitch Bradley wrote:

It seems that many of the differences at the CPU level can be determined 
by looking at "coprocessor" registers.  For what purpose(s) do we need 
to identify the core?  That will inform our choice of a core ID schema.

The primary thing I see would be architecture version compliance,
though this is better carried additionally via a binary field in
the header or a GPR at the entry point, to help the initial asm
code to setup the MMU etc... before getting into C code.

Cheers,
Ben.