Shift Register and Feedback Node

Shift Register and Feedback Node have the similar function that  is used to store the data after execute the loop and transmit to next loop.

(Fig 1: Feedback node)

(Fig 2: Shift Register)

The result is the same, but Shift Register (Fig 2) has 3 store units.

(Fig 3: Feedback node with initializer one loop out)

But the shift register is faster than feedback node much. Compare the execute time by below code.

(Fig 4: Feedback node with timer--3301 mSec)

(Fig 5: Shift Register with timer--2698 mSec)

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