[__arm_]vcvtq_n_u16_f16

Convert between floating-point and fixed-point values in elements of a vector register. The number of fractional bits in the fixed-point value is specified by an immediate. Fixed-point values can be specified as signed or unsigned. The floating-point to fixed-point operation uses the Round towards Zero rounding mode. The fixed-point to floating-point operation uses the Round to Nearest rounding mode. For floating-point to fixed-point operation, if the source value is outside the range of the target fixed-point type, the result is saturated.