Returns a vector containing the results of performing a fused double cross complex multiply-add operation for each corresponding set of elements of the given vectors.
d=vec_xxnpmadd(a, b, c)The following table describes the types of the returned value and the function arguments.
| d | a | b | c |
|---|---|---|---|
| vector4double | vector4double | vector4double | vector4double |
The values of the elements of the result are specified in the formula.
d[0] = - ( ( a[1] × b[1] ) + c[0] )
d[1] = ( ( a[0] × b[1] ) + c[1] )
d[2] = - ( ( a[3] × b[3] ) + c[2] )
d[3] = ( ( a[2] × b[3] ) + c[3] )a = ( 1.0, 2.0, 3.0, 4.0)
b = ( 0.0, 10.0, 0.0, 20.0)
c = ( 10.0, 10.0, 10.0, 10.0)
d: ( -30.0, 20.0, -90.0, 70.0)