Xcode arm64 Vs arm64e

ios xcode arm64 xcode10.1
Puvanarajan picture Puvanarajan · Oct 3, 2018 · Viewed 28.5k times · Source

Xcode 10.1 mention Support for arm64e (Preview). Anyone have any idea about arm64e. Any difference between arm64 and arm64e.

https://developer.apple.com/documentation/xcode_release_notes/xcode_10_1_beta_2_release_notes?language=objc

I searched arm64e. But couldn't found proper explanation.

Answer

Giovanni picture Giovanni · Oct 3, 2018

The arm64e architecture is used on the A12 chipset, which is added in the latest 2018 iPhone models (XS/XS Max/XR). The code compiles to ARMv8.3, which brings support for new features. Namely:

  • Pointer authentication
  • Nested virtualization
  • Advanced SIMD complex number support
  • Improved Javascript data type conversion support
  • A change to the memory consistency model
  • ID mechanism support for larger system-visible caches

The A12 features an Apple-designed 64-bit ARMv8.3-A six-core CPU

https://en.wikipedia.org/wiki/Apple_A12

Read more about the architecture here as well:

https://community.arm.com/processors/b/blog/posts/armv8-a-architecture-2016-additions

Related questions

Why the Missing 64-bit support happened when upload to the iTunes connect?

I try to upload the file via Application Loader. But I got the mail from iTunes store. Missing 64-bit support - Beginning on February 1, 2015 new iOS apps submitted to the App Store must include 64-bit support and be built with …

Read More
Are armv8 and arm64 the same?

In xcode which is the developement environment for iOS. When creating a new project. Build settings states that it supports armv7, armv7s and arm64 architectures. The following chart shows apple devices architectures: armv8 not mentioned anywhere. Does that mean …

Read More
duplicate symbols for architecture arm64 after Xcode 8.0 update

I get duplicate symbols error after I updated my Xcode. (find the code down) Does anybody get this too? And how could be solved? I tried to remove -ObjC linker flag from the "Other Linker Flags" section, check after imported .…

Read More