vec_add_u128

Purpose

Adds unsigned quadword values.

The function operates on vectors as 128-bit unsigned integers.

This built-in function is valid only when -qarch is set to target POWER8® processors.

Syntax

d=vec_add_u128(a, b)

Result and argument types

The type of d, a, and b must be vector unsigned char.

Result value

Returns low 128 bits of a + b.