Overview of ARM64 ABI conventions | Microsoft Learn
learn.microsoft.com › en-us › cppAug 25, 2021 · ARM64 – refers to the 64-bit ARM architecture (AArch64). There's no such thing as WoA64. Finally, when referring to data types, the following definitions from ARM are referenced: Short-Vector – A data type directly representable in SIMD, a vector of 8 bytes or 16 bytes worth of elements. It's aligned to its size, either 8 bytes or 16 bytes, where each element can be 1, 2, 4, or 8 bytes.