Function vsetq_lane_u16 

pub fn vsetq_lane_u16(a: u16, b: uint16x8_t, const LANE: i32) -> uint16x8_t

Available on (AArch64 or ARM64EC) and (AArch64 or ARM64EC or target feature v7) and (ARM or AArch64 or ARM64EC) and little-endian and target feature neon only.

Insert vector element from another vector element Arm’s documentation