B.6. Sum of Absolute Differences (SAD)

Table B.7 shows SAD instructions and gives their cycle timing behavior.

Table B.7. Sum of absolute differences instruction timing behavior

InstructionsCyclesEarly RegResult latency
USAD81<Rn>, <Rm>

2[a]

USADA81<Rn>, <Rm>2a

[a] Result latency is one fewer if the destination is the accumulate for a subsequent USADA8.


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