vec_mradds

Purpose

Returns a vector containing the results of performing a saturated multiply-high-round-and-add operation for each corresponding set of elements of the given vectors.

Syntax

d=vec_mradds(a, b, c)

Result and argument types

The type of d, a, b, and c must be

vector signed
short

Result value

For each element of the result, the value is produced in the following way: the values of the corresponding elements of a and b are multiplied and rounded such that the 15 least significant bits are 0. The value of the 17 most significant bits of this rounded product is then added, using 16-bit-saturated addition, to the value of the corresponding element of c.