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actionfromafar • today at 1:27 PM • 1 reply • view on HN

Just one caveat: the Pro overlapped in time with people running a lot of 16-bit code, and I think the Pentium MMX was faster for that, or at least that the Pro didn't offer much edge.


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whaleofatw2022 • today at 1:33 PM

The pro did register renaming. But the way it worked, if you wrote to AX (16 bit write) and then read from EAX (32 bit read) it caused a pipeline stall from resyncing the registers.

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