> The thing to understand is that shift is fundamentally a simpler operation tha... | Hacker News

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		SlowRobotAhead on April 25, 2020 \| parent \| context \| favorite \| on: Which is better on Android: divide by 2 or shift b... > The thing to understand is that shift is fundamentally a simpler operation than multipl ... well... If you have hardware multiply that is guaranteed to take one click cycle and a shift that will take the same... does fundamental complexity of how that happens even matter?

rasz on April 26, 2020 [–]

depends, shift might be fusable. First ARM chips had free shifts taking zero cycles http://www.csbio.unc.edu/mcmillan/Comp411F18/Lecture07.pdf

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