Figure 4-2, Interleaved pack with saturation -9, Figure 4-1 – Intel ARCHITECTURE IA-32 User Manual
Page 229: Packssdw mm, mm/mm64 instruction example -9
Optimizing for SIMD Integer Applications
4
4-9
Figure 4-2 illustrates two values interleaved in the destination register,
and Example 4-4 shows code that uses the operation. The two signed
doublewords are used as source operands and the result is interleaved
signed words. The pack instructions can be performed with or without
saturation as needed.
Figure 4-1
PACKSSDW
mm, mm/mm64 Instruction Example
Figure 4-2
Interleaved Pack with Saturation
O M15159
D
C
B
A
D
1
C
1
B
1
A
1
m m /m 64
m m
m m
O M15160
D
C
B
A
D
1
B
1
C
1
A
1
MM/M64
m m
m m