[kens]

The implementation of the 8008 is completely different from the 2200 (as is Texas Instruments' forgotten TMX 1795 implementation). It would be extremely inefficient to copy the TTL implementation, since that depended on what chips were available. But the biggest difference is that the Datapoint 2200 was a serial machine that used serial shift-register memory while the 8008 had a "normal" 8-bit datapath.

[klelatti]

Thanks - even in 1972 we had multiple radically different implementations of the same ISA!