Clearing bits within an integer is important if we want to isolate bits or set them to zero before we insert a new value. The bitwise-AND does this for us.
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Tarnoff, David, "Episode 7.02 – Clearing Bits using the Bitwise-AND" (2020). Computer Organization and Design Fundamentals Series. https://dc.etsu.edu/computer-organization-design-oer/52
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