From: Al Viro <viro@ZenIV.linux.org.uk>
To: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>,
QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions
Date: Tue, 8 Jul 2014 21:20:15 +0100 [thread overview]
Message-ID: <20140708202015.GG18016@ZenIV.linux.org.uk> (raw)
In-Reply-To: <53BC40AA.4090707@twiddle.net>
On Tue, Jul 08, 2014 at 12:04:10PM -0700, Richard Henderson wrote:
> > Just one thing - 0x1fffffffffffff will make 32bit hosts whine about integer
> > constant being too large. So will 0x1ffffffffffffful, unfortunately - it
> > really ought to be ull.
> >
>
> I did use ull on the branch.
Aha... So you've caught that one already... I've looked at your branch;
AFAICS, the only thing missing there is treating stores to FPCR.DNOD in
system mode as "not implemented" (which it is in the code as well as in
21[0-3]64 hardware). Other than that everything seems to be fine; you are
right about cvtql treatment - since that sucker doesn't have /i in any
allowed trap suffices, we might as well just raise Inexact and let it be
masked out - float_flag_inexact will be present in 'ignore'. And yes,
folding the calculation itself in there obviously makes sense.
next prev parent reply other threads:[~2014-07-08 20:20 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 4:34 [Qemu-devel] [RFC] alpha qemu arithmetic exceptions Al Viro
2014-06-24 16:52 ` Al Viro
2014-06-24 18:33 ` Richard Henderson
2014-06-24 20:32 ` Al Viro
2014-06-24 20:57 ` Richard Henderson
2014-06-24 21:24 ` Al Viro
2014-06-24 21:32 ` Richard Henderson
2014-06-25 7:01 ` Al Viro
2014-06-25 9:27 ` Peter Maydell
2014-06-25 14:26 ` Al Viro
2014-06-25 17:41 ` Peter Maydell
2014-06-26 5:55 ` Al Viro
2014-06-30 18:39 ` Richard Henderson
2014-06-30 20:56 ` Al Viro
2014-07-01 4:34 ` Al Viro
2014-07-01 5:00 ` Al Viro
2014-07-01 14:31 ` Richard Henderson
2014-07-01 17:03 ` Richard Henderson
2014-07-01 17:50 ` Al Viro
2014-07-01 18:23 ` Peter Maydell
2014-07-01 18:30 ` Richard Henderson
2014-07-01 19:08 ` Peter Maydell
2014-07-02 4:05 ` Al Viro
2014-07-02 5:50 ` Al Viro
2014-07-02 6:17 ` Al Viro
2014-07-02 15:26 ` Richard Henderson
2014-07-02 15:49 ` Al Viro
2014-07-02 14:59 ` Richard Henderson
2014-07-02 15:20 ` Al Viro
2014-07-03 6:51 ` Al Viro
2014-07-03 18:25 ` Al Viro
2014-07-03 20:19 ` Richard Henderson
2014-07-03 22:47 ` Al Viro
2014-07-03 23:05 ` Peter Maydell
2014-07-03 23:22 ` Al Viro
2014-07-04 0:50 ` Al Viro
2014-07-04 4:30 ` Richard Henderson
2014-07-04 7:29 ` Al Viro
2014-07-05 1:40 ` Al Viro
2014-07-05 5:26 ` Al Viro
2014-07-05 21:09 ` Al Viro
2014-07-05 22:55 ` Al Viro
2014-07-07 14:11 ` Richard Henderson
2014-07-07 15:06 ` Al Viro
2014-07-07 16:20 ` Richard Henderson
2014-07-08 4:20 ` Al Viro
2014-07-08 6:03 ` Richard Henderson
2014-07-08 6:54 ` Al Viro
2014-07-08 7:13 ` Al Viro
2014-07-08 8:05 ` Peter Maydell
2014-07-08 14:53 ` Richard Henderson
2014-07-08 16:13 ` Al Viro
2014-07-08 16:33 ` Peter Maydell
2014-07-08 17:20 ` Al Viro
2014-07-08 19:32 ` Peter Maydell
2014-07-08 20:12 ` Al Viro
2014-07-09 9:19 ` Alex Bennée
2014-07-09 9:04 ` Alex Bennée
2014-07-08 18:12 ` Richard Henderson
2014-07-08 19:02 ` Al Viro
2014-07-08 19:04 ` Richard Henderson
2014-07-08 20:20 ` Al Viro [this message]
2014-07-09 4:59 ` Richard Henderson
2014-07-09 5:47 ` Al Viro
2014-07-09 15:14 ` Richard Henderson
2014-07-09 16:41 ` Al Viro
2014-06-24 18:23 ` Richard Henderson
2014-06-24 20:47 ` Al Viro
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