So the important point here is that we only have to evaluate if (--$n > 0) one eighth of the time?
To quote myself:
Duff's device does two things: it does loop unrolling, and it uses a neat/tricky way of dealing with the border case of a loop unrolling technique.
So, I'd say it's an important thing.

Abigail

In reply to Re: Duff's Device by Abigail-II
in thread Duff's Device by davido

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