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created: 07/08/01; audio: 01/04/04; revisions: 02/13/03; 07/23/15

CHAPTER 12 — Shift Instructions and Logic Instructions

It often happens that a bit pattern must be shifted several positions left or right. The instructions that do this are the shift instructions.

Chapter Topics:


(Review:) If a bit pattern that represents an integer N using unsigned binary (say 0110 0001) is shifted left by one bit (to 1100 0010) what integer does the new bit pattern represent?