Date: Wed, 31 Jul 2013 06:45:22 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Parallella: bcrypt Katja, On Wed, Jul 31, 2013 at 06:37:01AM +0400, Solar Designer wrote: > On Wed, Jul 31, 2013 at 06:19:08AM +0400, Solar Designer wrote: > > Another thing I noticed is that you're not yet using LDRD to preload P's > > (instead, you preload the elements one by one). I think you should. > > You may need to adjust the alignment of P for that, to make P rather > than P quadword aligned. Actually, not. You need to renumber the registers. Right now, you put P into r54 and P into r4 - but you should instead be using two consecutive registers for this, like r4 and r5 - and so on, and ditto for the second P array. Overall, you'll replace the 36 LDR's with 18 LDRD's. Renumbering of registers like this will be easier to do once you're using cpp macros for them. Alexander
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