From: Jan Kiszka <jan.kiszka@web.de>
To: Paul Brook <paul@codesourcery.com>
Cc: qemu-devel@nongnu.org, Anthony Liguori <aliguori@us.ibm.com>
Subject: Re: [Qemu-devel] [PATCH v2] Use ctz64 in favor of ffsll
Date: Sat, 04 Jul 2009 09:16:40 +0200 [thread overview]
Message-ID: <4A4F01D8.7090805@web.de> (raw)
In-Reply-To: <200907031035.20520.paul@codesourcery.com>
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Paul Brook wrote:
> On Thursday 02 July 2009, Jan Kiszka wrote:
>> Not all host platforms support ffsll.
>
>> - pending_irq = i * 64 + bit - 1;
>> + bit = ctz64(env->interrupt_bitmap[i]);
>> + pending_irq = i * 64 + bit;
>
> Are we sure there is only ever one bit set in interrupt_bitmap?
Yes.
> If not does it mater that we're processing them in reverse order?
>
> Paul
Jan
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next prev parent reply other threads:[~2009-07-04 7:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-01 20:22 [Qemu-devel] [PATCH] Use ffs in favor of ffsll Jan Kiszka
2009-07-01 20:27 ` [Qemu-devel] " Blue Swirl
2009-07-01 20:35 ` Jan Kiszka
2009-07-01 20:55 ` [Qemu-devel] [PATCH v2] " Jan Kiszka
2009-07-01 20:58 ` Nathan Froyd
2009-07-01 22:24 ` [Qemu-devel] " Jan Kiszka
2009-07-01 23:02 ` [Qemu-devel] " Stuart Brady
2009-07-02 7:04 ` [Qemu-devel] [PATCH] Use ctz64 " Jan Kiszka
2009-07-02 7:11 ` [Qemu-devel] [PATCH v2] " Jan Kiszka
2009-07-03 9:35 ` Paul Brook
2009-07-04 7:16 ` Jan Kiszka [this message]
2009-07-02 8:39 ` [Qemu-devel] Re: [PATCH] Use ffs " Christoph Egger
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