Emulators: where you get bug reports that say "some users can't play the game online since the last update" and then spend 12h tracking it down to L1 ICache expiry semantics differences with the real hardware (after being sidetracked with SSL issues). https://bugs.dolphin-emu.org/issues/11455#note-46 …
And it's buggy game (patch) code that happens to work by accident. This is the kind of stuff that doesn't fly on modern consoles any more. CPUs get upgraded without preserving identical microarchitectural semantics. Good riddance.
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Dunno. I'm a bit sad at the loss of all the black magic you could find in video games running in kernel mode with full hardware control :( It's just not the same with syscalls and clean interfaces.
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It's okay, we have enough retro stuff to analyze and preserve to remain entertained for a while ;-)
End of conversation
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Well, this will not change much, instead of instruction cache semantic interpretation differences there will be API ones. Might be worse.
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There are tons of things you would think don't really matter in newer emulators, but really it's just that emulators were too bad to realize it before. Dolphin even has a basic model trying to estimate execution units utilization to count cycles. Without it some FMVs run slow.
End of conversation
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