From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Subject: Re: [musl] Considering x86-64 fenv.s to C
Date: Sat, 18 Jan 2020 02:15:35 +0100 [thread overview]
Message-ID: <20200118011535.GD23985@port70.net> (raw)
In-Reply-To: <20200117164143.GB2020@voyager>
* Markus Wichmann <nullplan@gmx.net> [2020-01-17 17:41:43 +0100]:
> On Fri, Jan 17, 2020 at 02:36:20PM +1100, Damian McGuckin wrote:
> > Also, and I could be wrong, currently MUSL assumes that there is an integral
> > type for every floating type.
>
> Let me stop you there. Musl assumes that for long doubles, you can
> create a union ldshape. So there is no need for a 128 bit data type, a
> 64 bit one is good enough.
actually it's quite annoying to deal with N bit long double without
N bit int, because sometimes you want to fiddle with the bits using
int operations and if you don't have N bit int type you have to
deal with endianness (you can always copy the long double into an
array of bytes, but the layout of the bytes is not portable, same
for union with multiple fields: you need variants for different
endianness)
next prev parent reply other threads:[~2020-01-18 1:15 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 4:30 Damian McGuckin
2020-01-16 15:11 ` Markus Wichmann
2020-01-16 16:14 ` Rich Felker
2020-01-16 18:56 ` Damian McGuckin
2020-01-16 19:33 ` Rich Felker
2020-01-16 21:31 ` Damian McGuckin
2020-01-17 3:36 ` Damian McGuckin
2020-01-17 3:48 ` Damian McGuckin
2020-01-17 3:53 ` David Edelsohn
2020-01-17 14:13 ` Rich Felker
2020-01-17 14:19 ` David Edelsohn
2020-01-17 14:53 ` Rich Felker
2020-01-18 4:45 ` Damian McGuckin
2020-01-18 5:29 ` Rich Felker
2020-01-19 8:50 ` Damian McGuckin
2020-01-19 9:07 ` Damian McGuckin
2020-01-19 10:42 ` Szabolcs Nagy
2020-01-19 12:25 ` Damian McGuckin
2020-01-20 5:32 ` Damian McGuckin
2020-01-20 17:38 ` Rich Felker
2020-01-20 21:11 ` [musl] Triggering Overflow (or Underflow) without triggering Inexact on i386 Damian McGuckin
2020-01-20 22:32 ` Szabolcs Nagy
2020-01-21 3:53 ` [musl] Considering x86-64 fenv.s to C Damian McGuckin
2020-01-21 4:22 ` Rich Felker
2020-01-21 4:46 ` Damian McGuckin
2020-01-21 7:26 ` Damian McGuckin
2020-01-17 16:41 ` Markus Wichmann
2020-01-18 1:15 ` Szabolcs Nagy [this message]
2020-01-18 5:03 ` Damian McGuckin
2020-01-18 5:37 ` Rich Felker
2020-01-18 9:40 ` Szabolcs Nagy
2020-01-24 0:42 ` Damian McGuckin
2020-01-24 1:11 ` Rich Felker
2020-01-24 4:13 ` Damian McGuckin
2020-01-24 4:55 ` Rich Felker
2020-01-24 6:08 ` Damian McGuckin
2020-01-24 13:44 ` Rich Felker
2020-01-24 14:45 ` Damian McGuckin
2020-01-24 23:59 ` Damian McGuckin
2020-01-25 0:11 ` Rich Felker
2020-01-26 3:28 ` Damian McGuckin
2020-01-26 3:28 ` Damian McGuckin
2020-01-26 3:30 ` Damian McGuckin
2020-01-26 3:32 ` Damian McGuckin
2020-01-26 5:25 ` Damian McGuckin
2020-01-27 3:32 ` Damian McGuckin
2020-01-27 5:39 ` Damian McGuckin
2020-02-02 0:47 ` Damian McGuckin
2020-02-03 0:54 ` Damian McGuckin
2020-02-03 2:09 ` Rich Felker
2020-02-03 2:12 ` Damian McGuckin
2020-02-22 20:17 ` Rich Felker
2020-02-22 20:53 ` Damian McGuckin
2020-02-23 5:41 ` Damian McGuckin
2020-02-23 6:25 ` Rich Felker
2020-02-23 8:35 ` Damian McGuckin
2020-02-07 21:25 ` Damian McGuckin
2020-02-07 21:38 ` Rich Felker
2020-02-07 23:53 ` Damian McGuckin
2020-02-09 5:04 ` Damian McGuckin
2020-01-24 7:10 ` Damian McGuckin
2020-01-18 5:04 ` Markus Wichmann
2020-02-03 14:16 [musl] PPC64(LE) support in musl requires ALTIVEC Romain Naour
2020-02-03 14:50 ` Rich Felker
2020-02-05 1:32 ` [musl] Considering x86-64 fenv.s to C Damian McGuckin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200118011535.GD23985@port70.net \
--to=nsz@port70.net \
--cc=musl@lists.openwall.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).