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Message-ID: <20171130185956.GS15263@port70.net>
Date: Thu, 30 Nov 2017 19:59:57 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: remquo - underlying logic
* Damian McGuckin <damianm@....com.au> [2017-12-01 05:11:40 +1100]:
> Is there anywhere this is described in detail.
>
> As part of some research, I was studying an implementation
>
> https://opensource.apple.com/source/Libm/Libm-315/Source/ARM/remquo.c
>
> which uses ideas which avoids the fixed point arithmetic.
>
> While there are some issues with this implementation, some of its ideas may
> produce cleaner and likely shorter code than the current remquo.
> maybe not so much with double but for anything else high, yes.
>
> Has anybody tried this before?
i think it does similar things than the current
implementation but uses float arithmetics instead
of ints.
i hadn't considered using floats, it may be faster
i don't know, you have to benchmark etc.
i can add this to my math todo items, but i can't
promise to look into it soon unless there is a
good reason to.
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