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Qualcomm will try to have its Apple Silicon moment in PCs with “Snapdragon X” (arstechnica.com)

submitted 1 year ago by simple@lemm.ee to c/technology@lemmy.world

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[–] Dark_Arc@social.packetloss.gg 1 points 1 year ago (1 children)

it was just an example of a compatibility layer

It's a different problem under the same name. You're comparing apples to oranges by comparing WINE and Rosetta.

WINE (as I understand it) explicitly does its best to maintain the instructions and basically just implements functions that are missing.

Rosetta actually changes out every instruction (and presumably has to do a WINE-like thing as well to handle dynamically linked code, though in theory this is more of a 1-to-1 mapping since you're not swapping OSes).

if there's no viable way to translate those x86 legacy applications over to ARM

For a properly written application that doesn't have a lot of third party binary dependents... This really shouldn't be that big of a job. You just recompile the code on ARM, test, and fix any bugs.

I'd speculate that most of the time this stuff comes up like: "this was written for Windows with some very specific Microsoft libraries/tech in mind and we want to run it on Linux and ARM as cost cutting measures."

Granted, it's not unusual for a large enough code base to contain some code that wasn't written in an architecture neutral way/does some shady stuff.

[–] Defaced@lemmy.world 1 points 1 year ago

I'm not comparing Rosetta and proton...I'm just using them as examples of compatibility layers that make their products viable. I frankly don't give a shit about the inner workings of Rosetta or proton, but thanks for clarifying I guess.