James Knott said the following on 01/15/2012 11:33 AM:
The only CPU that I can think of that didn't have some sort of register for such operations was (IIRC) the Texas Instruments 9900 series which did everything in memory locations.
There was also a Ferranti microprocessor in the late 70s that didn't have a register-as-we-think-of-registers. It was essentially a 1-bit machine that streamed. We never tried it so I don't know how it handled addressing, but everything else seemed to be memory-to-memory. I never did hear of any applications using it, but Ferranti had enough political lobbyist leverage that they scotched other standards projects that were going on in the UK about that time. But then along came the IBM PC .... -- All warfare is based on deception. There is no place where espionage is not used. Offer the enemy bait to lure him. Sun-Tzu -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org