Function vcvtn_u16_f16 

pub fn vcvtn_u16_f16(a: float16x4_t) -> uint16x4_t

Available on (AArch64 or target_arch=arm64ec) and non-target_arch=arm64ec and target feature neon and target feature fp16 only.

Floating-point convert to unsigned integer, rounding to nearest with ties to even Arm’s documentation