Date: Thu, 22 Aug 2013 14:17:47 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Parallella: Litecoin mining Rafael - On Sat, Jul 27, 2013 at 03:03:03AM +0400, Solar Designer wrote: > (However, note that you must avoid integer division; I did > not bother avoiding it in my experimental code, but you must.) It appears that you forgot (or failed?) to do this, and it never got onto your "Priorities" lists (it should). Looking at "e-objdump -d epiphany-scrypt.elf", you actually have ___udivsi3 and ___umodsi3 in there. These consume local memory space and are pretty slow. (Actually, I am surprised gcc did not optimize the division by 6 into multiplication by a constant needed to achieve division by 3, followed by a right shift by 1.) Alexander
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