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Complex instruction sets are basically all emulated today anyway. The instruction set the CPU exposes gets translated down into microinstructions for the actual CPU core to execute. It turns out this is overall a good thing, because you can make a microinstruction set that executes really fast when you don't have to worry about things like "being just as performant on next year's CPU model" and "being compact enough that you're not saturating your memory bandwidth just by reading the instructions you're trying to execute".
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Aug 6, 2015 17:35
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| # ¿ May 15, 2024 14:22 |
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