d = vec_mhadd(a, b, c)Returns a vector containing the most significant ("high") half of the double element-sized results of performing a multiply-and-add operation for each corresponding set of elements of the given vectors. The value of each element of the result is the value of the most significant half of the double element-sized of the product of the values of the corresponding elements of a and b, added to the value of the corresponding element of c.
| d | a | b | c |
|---|---|---|---|
| vector unsigned char | vector unsigned char | vector unsigned char | vector unsigned char |
| vector signed char | vector signed char | vector signed char | vector signed char |
| vector unsigned short | vector unsigned short | vector unsigned short | vector unsigned short |
| vector signed short | vector signed short | vector signed short | vector signed short |
| vector unsigned int | vector unsigned int | vector unsigned int | vector unsigned int |
| vector signed int | vector signed int | vector signed int | vector signed int |