Function vrsubhn_u64 

pub fn vrsubhn_u64(a: uint64x2_t, b: uint64x2_t) -> uint32x2_t

🔬This is a nightly-only experimental API. (stdarch_arm_neon_intrinsics #111800)

Available on (AArch64 or target_arch=arm64ec) and little-endian and target feature neon and target feature v7 only.

Rounding subtract returning high narrow Arm’s documentation