Sse3 and complex arithmetics, Sse3 and complex arithmetics -23, Figure 5-5 – Intel ARCHITECTURE IA-32 User Manual
Page 285: Figure 5-4, See figure 5-4). hadd, Capability (see figure 5-5). in
Optimizing for SIMD Floating-point Applications
5
5-23
SSE3 and Complex Arithmetics
The flexibility of SSE3 in dealing with AOS-type of data structure can
be demonstrated by the example of multiplication and division of
complex numbers. For example, a complex number can be stored in a
structure consisting of its real and imaginary part. This naturally leads to
the use of an array of structure. Example 5-11 demonstrates using SSE3
Figure 5-4
Asymmetric Arithmetic Operation of the SSE3 Instruction
Figure 5-5
Horizontal Arithmetic Operation of the SSE3 Instruction HADDPD
X1
X0
X1 + Y1
X0 -Y0
SUB
Y1
Y0
ADD
X1
X0
Y0 + Y1
X0 + X1
ADD
Y1
Y0
ADD