Yes, the ISA is a document / specification, not hardware. Implementing all of it correctly is what makes something an x86 CPU, rather than just something with similarities to x86. See the x86 tag wiki for links to the official docs (Intel’s manuals). Intel and AMD’s implementations of the x86 ISA differ mainly in performance, … Read more
If you have an AMD processor, you can download an ARM image, but it is super slow on x86 platforms. The x86 image does not work with AMD CPUs, because the x86 image needs HAXM installed which needs VT-X support, and only Intel CPUs support it. So you can download the Genymotion emulator, which supports … Read more
For Ryzen on Windows 10, use the latest stable instead of canary. Enable virtualization in BIOS. Remove HAXM. Turn off Hyper-V, Windows Hypervisor platform, Windows Sandbox(depends on your windows version, old versions may not have all). REBOOT Launch SDK Manager via Android Studio and you should see “Android Emulator Hypervisor Driver for AMD Processors”. Check … Read more
Alright, first of all, open your Android SDK Manager: Tools -> Android -> SDK Manager, then chose any platform/package you want to download, expand it and select ARM EABI v7a System Image or ARM 64 v8a System Image then install. After that, open Android AVD Manager: Tools -> Android -> AVD Manager and create an … Read more
It is not really a full answer, but still evidence that the penalty is visible. MSVC 2022 benchmark, compiler with /std:c++latest. #include <chrono> #include <iostream> struct alignas(16) S { char* a; int* b; }; extern “C” void init_fused_copy_unfused(int n, S & s2, S & s1); extern “C” void init_fused_copy_fused(int n, S & s2, S & … Read more