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Date: Mon, 17 Aug 2015 15:40:19 +0800
From: Lei Zhang <>
Subject: Re: Formats using non-SIMD SHA2 implementations

On Aug 17, 2015, at 2:26 PM, magnum <> wrote:
> On 2015-08-17 05:07, Lei Zhang wrote:
>> I finally got 7z to work correctly with SIMD :)
> Cool. Maybe you could do RAR3 too?

I just took a brief look at it. It seems kind of similar to 7z. I can give it a try.

> Are you sorting lengths, like Jim hinted? Or are you handling diverging lengths like in SAP F/G?

No, I haven't done that yet. I may give that a try too. I hope it's not too tricky to implement. The code already looks ugly enough...

> I think anything over 20 is fine, but you need to add the UTF-8 kludge (multiply by 3 if target_enc is UTF-8) to init(). The reason we didn't already have that kludge was that 125 is the core max anyway so bumping to MIN(125, 3*125) would be a no-op.

Got it. Thanks.


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