> Access to RAM on a MOS 6502 is about 2-6 cycles, isn't it? One cycle. Of course, the cycles are a lot slower. > It would be interesting if you could just p

> Access to RAM on a MOS 6502 is about 2-6 cycles, isn't it? One cycle. Of course, the cycles are a lot slower. > It would be interesting if you could just program with an L1 exposed and structured as a main memory rather than a cache ... The Cell processor, used in the PlayStation 3, provided something like that. What happened in practice was that programmers trying to get code working soon enough to be useful, just ended up leaving most of the theoretical performance on the table, which is why the next generation of consoles scrapped the idea in favor of a conventional x64 CPU.