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A comment on Apple will announce move to ARM-based Macs later this month. Parent comment

Re:Apple will announce move to ARM-based Macs later this month by efficax on Tuesday June 09, 2020 @05:45PM (#23471274)
Likely you'll just be able to ship fat applications that have binaries for x86 and ARM code with one click in Xcode
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Re:Apple will announce move to ARM-based Macs later this month by dathinab on Tuesday June 09, 2020 @06:38PM (#23471747)
That is if you have a Apple only application using Swift/Objectiv-C maybe C/C++.

Also don't forget that ARM has weaker memory ordering, so expect to see some fallout from not completely correctly written atomics/lock-free code.

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