On Sat, Apr 02, 2011 at 11:11:39PM +0200, Frank Wille wrote: > is there already a global function to reverse the bits in a byte?
I don't think so. > If not, wouldn't it be useful to put an optimized function (e.g. with > a 256-byte lookup-table, or 16-byte for the two nibbles to save space) > into the kernel, or into libkern? Depending on the platform, one of the approaches from http://graphics.stanford.edu/~seander/bithacks.html#BitReverseTable makes sense. Joerg
