From: Rich Felker <dalias@libc.org>
To: musl@lists.openwall.com
Subject: Re: [PATCH] mips: add single-instruction math functions
Date: Wed, 18 Sep 2019 09:49:13 -0400 [thread overview]
Message-ID: <20190918134913.GZ9017@brightrain.aerifal.cx> (raw)
In-Reply-To: <836025754.20190918160733@mobile-stream.com>
On Wed, Sep 18, 2019 at 04:07:33PM +0300, info@mobile-stream.com wrote:
> >> diff --git a/src/math/mips/fabs.c b/src/math/mips/fabs.c
> >> new file mode 100644
> >> index 00000000..0a5aa3b1
> >> --- /dev/null
> >> +++ b/src/math/mips/fabs.c
> >> @@ -0,0 +1,16 @@
> >> +#if !defined(__mips_soft_float) && defined(__mips_abs2008)
>
> R> Why is this dependent on __mips_abs2008?
>
>
> ABS.fmt is non-arithmetic only on cores with the corresponding FCSR
> bit hardwired to 1. It is R6 (always) and some R5 cores (such as
> P5600, M5150).
OK, in that case it may be okay to condition it on R6 (which is a
different ISA/ABI), as long as that's actually a hard requirement of
the R6 ISA.
Rich
next prev parent reply other threads:[~2019-09-18 13:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-11 10:05 info
2019-09-11 11:46 ` Rich Felker
2019-09-12 17:57 ` Rich Felker
2019-09-13 11:46 ` info
2019-09-13 18:31 ` Rich Felker
2019-09-13 18:56 ` Rich Felker
2019-09-13 19:12 ` James Y Knight
2019-09-13 20:01 ` Rich Felker
2019-09-13 20:23 ` Rich Felker
2019-09-18 13:07 ` info
2019-09-18 13:49 ` Rich Felker [this message]
2019-09-18 17:18 ` info
2019-09-18 20:04 ` Rich Felker
2019-09-19 12:54 ` info
2019-09-19 13:14 ` Rich Felker
2019-09-19 13:25 ` Rich Felker
2019-09-19 18:26 ` info
2019-09-19 19:10 ` Rich Felker
2019-10-14 14:18 ` Rich Felker
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