I am studying the out of order processors, so in different types of out of order processors, there are different structures like ARF(architectural register file), PRF(physical register file), ROB(reorder buffer) and FSB(Finished store buffer). Which stores some kind of information for out of order execution. So these structures are storage units? if yes, then on which memory technology they are implemented? are they the same as registers (multi-ported SRAMs)?
Different structures in out of order processors
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