You are adressing our deepest fears now
The "Roma" program from 1987 which has also been used in Palm Pocket PCs is indeed so far the best explanation for the "ARM Cortex" and "ELO 2000"
I think Roma is pretty boring, even on fast hardware.
Link:
Roma 68020 vs MMV 10 Mhz
Link:
Der für die Palm-Serie angebotene ChessGenius basiert auf dem Roma-Programm, dem WM-Programm von 1987.