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The Surprising Subtleties of Zeroing a Register | Hacker News Reader

The Surprising Subtleties of Zeroing a Register

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2 points·luu··1 comment

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"You can’t make an xor instruction take, say, 0.6 cycles. But feel free to try."

'Easy': clockless CPUs (http://en.wikipedia.org/wiki/Asynchronous_circuit#Asynchrono...)

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