Re:Testing AMD's Bergamo: Zen 4c
by antonkochubey on Sunday June 23, 2024 @05:07PM
(#40770592)
But decoders for e.g. ARM are not free either, right? Or am I misunderstanding something?
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Correct. However because ARM has fixed-length instructions the decoder can make more assumptions, keeping the decoder simpler.
Like I said, you its only a small amount of extra silicon you’re paying the x86 tax with, but with the world mostly becoming ARM-compatible, there’s no more reason to pay it.