BitcoinTalk

Re: 4 hashes parallel on SSE2 CPUs for 0.3.6

302
From:
satoshi
Subject:
Re: 4 hashes parallel on SSE2 CPUs for 0.3.6
Date:
That's amazing...

So are you saying you use 128-bit registers to SIMD four 32-bit data at once?  I've wondered about that for a long time, but I didn't think it would be possible due to addition carrying into the neighbour's value.