User Guide

128-Bit Media and Scientific Programming 113
24592—Rev. 3.15—November 2009 AMD64 Technology
in many media algorithms such as those required for finite impulse response (FIR) filters, one of the
commonly used DSP algorithms.
Figure 4-8. Multiply-Add Operation
There is also a sum-of-absolute-differences instruction (PSADBW), shown in Figure 4-9 on page 114.
This is useful, for example, in computing motion-estimation algorithms for video compression.
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operand 1
result
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operand 2
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127 0
intermediate result
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