found it!

the problem was the LBPB() to load byte 0 from the pvd for comparsion.
i loaded it into rBX instead of rBL.  found this out after dumping the
buffer and noticed that the contents where the same on t23 and amd
machine.

it all works now. tested on t23, bochs, and amd machine and its
blazing fast :)

updated the tarballs:

/n/sources/contrib/cinap_lenrek/tuttleboot.tgz
http://9hal.ath.cx/usr/cinap_lenrek/tuttleboot.tgz

attached the file and the diff to this mail...

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cinap