| Parameter | Description |
|---|---|
| a | Vector a |
| b | Vector b |
| rounding | Rounding mode |
v128 Vector
Round the lower single-precision (32-bit) floating-point element in "b" using the "rounding" parameter, store the result as a single-precision floating-point element in the lower element of "dst", and copy the upper 3 packed elements from "a" to the upper elements of "dst".