Interesting ARM compatibility shim for Windows 11

By: Mark Roulo (nothanks.delete@this.xxx.com), July 1, 2021 8:28 pm
Room: Moderated Discussions
Doug S (foo.delete@this.bar.bar) on July 1, 2021 8:20 pm wrote:
> Beastian (no.email.delete@this.aol.com) on July 1, 2021 2:48 pm wrote:
> > https://blogs.windows.com/windowsdeveloper/2021/06/28/announcing-arm64ec-building-native-and-interoperable-apps-for-windows-11-on-arm/
> >
> >
Internally, we’ve rebuilt the binaries of the Windows 11 on ARM operating system itself with ARM64EC
> > so that any system code loaded by x64 apps runs with native speed. In addition, the Office team is using
> > ARM64EC in the coming 64-bit Office for ARM so that existing x64 plugins will work seamlessly.

> >
> > Microsoft seems entirely reliant on ARM for its non-PC compute in devices like hololens,
> > and is plowing extensive resources into engineering compatibility solutions like this
> > for its more traditional platforms. Looks like Windows on ARM is here to stay.
>
>
> That's entirely backwards. This makes it so running ARM64 code on an x64 PC runs faster. They
> need it to work the other way around, so that running x64 code on an ARM64 PC runs faster.


From the link:


ARM64EC is a new application binary interface (ABI) for Windows 11 on ARM that runs with native speed and is interoperable with x64. An app, process, or even a module can freely mix and match ARM64EC and x64 as needed. The ARM64EC code in the app will run natively while any x64 code will run using Windows 11 on ARM’s built-in emulation.
...
Traditionally, rebuilding an app for ARM has meant recompiling the entire app. The result is a great native experience for the customer that unlocks the full power of the ARM device. However, from a developer perspective, porting an app can be all-or-nothing, since all the binaries within a process need to be rebuilt before a customer can see the benefit.

With ARM64EC, you can choose to start small and build incrementally. You can identify a part of your codebase that would benefit most from native performance and rebuild it as ARM64EC. The rest of the app will remain fully functional as emulated x64, but the recompiled ARM64EC parts will now have native speed. Over time, you can recompile more of the app as ARM64EC to further improve performance and conserve battery life for your app’s customers.

< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Interesting ARM compatibility shim for Windows 11Beastian2021/07/01 02:48 PM
  Interesting ARM compatibility shim for Windows 11Groo2021/07/01 03:44 PM
  Interesting ARM compatibility shim for Windows 11Doug S2021/07/01 08:20 PM
    Interesting ARM compatibility shim for Windows 11Mark Roulo2021/07/01 08:28 PM
      Interesting ARM compatibility shim for Windows 11Beastian2021/07/01 09:38 PM
        Interesting ARM compatibility shim for Windows 11Brett2021/07/02 02:45 AM
          Interesting ARM compatibility shim for Windows 11James2021/07/02 05:25 AM
          Interesting ARM compatibility shim for Windows 11dmcq2021/07/02 05:34 AM
          Interesting ARM compatibility shim for Windows 11Gabriele Svelto2021/07/02 09:02 AM
            Interesting ARM compatibility shim for Windows 11Kester L2021/07/02 09:33 AM
              Interesting ARM compatibility shim for Windows 11Jukka Larja2021/07/02 11:36 PM
                Interesting ARM compatibility shim for Windows 11Gabriele Svelto2021/07/03 05:37 AM
                  Interesting ARM compatibility shim for Windows 11Jukka Larja2021/07/03 10:38 AM
                    Interesting ARM compatibility shim for Windows 11Gabriele Svelto2021/07/03 02:07 PM
                Interesting ARM compatibility shim for Windows 11Kester L2021/07/06 07:48 AM
                  Interesting ARM compatibility shim for Windows 11Jukka Larja2021/07/06 10:46 PM
          Don't compare manufacturing unit cost with sales priceMark Roulo2021/07/02 10:07 AM
            Don't compare manufacturing unit cost with sales price---2021/07/02 11:22 AM
              Don't compare manufacturing unit cost with sales priceme2021/07/02 11:32 AM
              Don't compare manufacturing unit cost with sales priceDummond D. Slow2021/07/03 02:11 PM
          Interesting ARM compatibility shim for Windows 11anon2021/07/02 11:26 AM
            Interesting ARM compatibility shim for Windows 11Beastian2021/07/02 12:47 PM
              Interesting ARM compatibility shim for Windows 11Linus Torvalds2021/07/02 02:10 PM
                Optimized local call conventionsanon22021/07/02 07:49 PM
                  Optimized local call conventionsAdrian2021/07/02 10:03 PM
                    Optimized local call conventionsanon22021/07/03 12:10 AM
                      Optimized local call conventionsAdrian2021/07/03 10:04 PM
                  Optimized local call conventionsrwessel2021/07/02 11:44 PM
                    Optimized local call conventionsdmcq2021/07/03 01:47 PM
                  Optimized local call conventionsCarson2021/07/03 06:13 PM
                    Optimized local call conventionsanon22021/07/03 09:18 PM
                      Optimized local call conventionsCarson2021/07/04 01:23 PM
                Interesting ARM compatibility shim for Windows 11---2021/07/03 08:59 AM
                  Interesting ARM compatibility shim for Windows 11joema2021/07/03 10:37 AM
                    Interesting ARM compatibility shim for Windows 11Doug S2021/07/03 12:05 PM
                      Interesting ARM compatibility shim for Windows 11Linus Torvalds2021/07/03 12:26 PM
                        Interesting ARM compatibility shim for Windows 11Doug S2021/07/03 03:45 PM
                          Interesting ARM compatibility shim for Windows 11Michael S2021/07/03 04:54 PM
                          Interesting ARM compatibility shim for Windows 11-.-2021/07/04 06:57 AM
                            Interesting ARM compatibility shim for Windows 11---2021/07/04 09:25 AM
                            Interesting ARM compatibility shim for Windows 11Doug S2021/07/05 09:34 AM
                      Interesting ARM compatibility shim for Windows 11Foo_2021/07/04 02:25 AM
                        Interesting ARM compatibility shim for Windows 11Doug S2021/07/04 05:18 AM
                          Interesting ARM compatibility shim for Windows 11Jukka Larja2021/07/04 05:47 AM
                            Ongoing Windows 16 bit supportJames2021/07/05 02:17 AM
                              Ongoing Windows 16 bit supportgai2021/07/05 08:35 AM
                                Ongoing Windows 16 bit supportJukka Larja2021/07/05 11:11 PM
                          Interesting ARM compatibility shim for Windows 11Foo_2021/07/04 06:31 AM
                          Microsoft should drop x86 thinking...Dummond D. Slow2021/07/04 07:40 AM
                            Microsoft should drop x86 thinking...Doug S2021/07/05 09:56 AM
                              Microsoft should drop x86 thinking...Brett2021/07/05 01:47 PM
                                "DOOMED"Anon2021/07/06 01:01 AM
                                  "DOOMED"Michael S2021/07/06 03:15 AM
                                    "DOOMED"dmcq2021/07/06 04:08 AM
                                      "DOOMED"me2021/07/06 04:57 AM
                                      "DOOMED"Michael S2021/07/06 05:09 AM
                                        "DOOMED"Anon2021/07/06 05:50 AM
                                          "DOOMED"Michael S2021/07/06 06:29 AM
                                  "DOOMED"Doug S2021/07/06 08:41 AM
                                    "DOOMED"Jukka Larja2021/07/06 10:55 PM
                                      "DOOMED"Doug S2021/07/07 12:21 AM
                                Forgot about AMD?Chester2021/07/06 08:51 AM
                                dumb terminalsanonymous22021/07/06 10:51 AM
                              Microsoft should drop x86 thinking...Dummond D. Slow2021/07/06 06:40 AM
                  Interesting ARM compatibility - Procedure values?dmcq2021/07/04 03:49 AM
                    Interesting ARM compatibility - Procedure values?dmcq2021/07/04 04:18 AM
                      Interesting ARM compatibility - Procedure values?Etienne Lorrain2021/07/05 01:21 AM
                        Interesting ARM compatibility - Procedure values?dmcq2021/07/06 03:20 AM
                    Interesting ARM compatibility - Procedure values?---2021/07/04 09:42 AM
                      Interesting ARM compatibility - Procedure values?dmcq2021/07/04 02:44 PM
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