Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Tue, 29 Jan 2019 22:26:23 +1100 (AEDT)
From: Damian McGuckin <damianm@....com.au>
To: musl@...ts.openwall.com
Subject: Re: Possible Mistype in exp.c


On Tue, 29 Jan 2019, Szabolcs Nagy wrote:

> it's not the division that's supposed to raise the exception,
> but the cast (although the division might in case of an x with
> sufficiently large magnitude).

I did not think about that. An interesting approach.

> in any case i plan to completely rewrite exp and other
> important math functions:
>
> https://www.openwall.com/lists/musl/2018/12/08/1

Thanks for the pointer.

> that implementation is >2x faster in general than the old fdlibm code as 
> well as more precise.

It is hard to argue to 2x faster. Mind you, I certainly found the ARM 
code much harder to read. Interesting none the less.

Regards - Damian

Pacific Engineering Systems International, 277-279 Broadway, Glebe NSW 2037
Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here
Views & opinions here are mine and not those of any past or present employer

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.