Tag Archives: bit matrix

SSE2 bit matrix transpose special case … 8 x 256 … for Marek

It turns out that Marek’s Idea of the Day: Bitsliced SipHash used my SSE2 bit-matrix transpose┬ároutine, but it wasn’t fast enough. This is normally the case for SSE2: the more specific the problem, the better the code can be. I … Continue reading

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The full SSE2 bit matrix transpose routine

Source code for this routine and many others using SSE2 in unusual ways is in this github repo. Since there have been a large number of hits on the “SSE2 bit matrix transpose” post, here’s the full deal: transpose of … Continue reading

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