From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: "Juha Riihimäki" <juha.riihimaki@nokia.com>
Subject: Re: [Qemu-devel] [PATCH 2/2] fix ARMv7 data processing instructions
Date: Fri, 15 May 2009 03:19:46 +0100 [thread overview]
Message-ID: <200905150319.46630.paul@codesourcery.com> (raw)
In-Reply-To: <200905150305.57613.paul@codesourcery.com>
On Friday 15 May 2009, Paul Brook wrote:
> On Wednesday 06 May 2009, Juha Riihimäki wrote:
> > ARMv7 defines a new behavior for ARM data processing instructions
> > compared to earlier architecture revisions; when the destination
> > register is R15, a Branch and Exchange operation is executed rather
> > than a simple Branch to the target address. This patch corrects the
> > behavior of the emulation for the aforementioned operations.
>
> We should not switch modes if instructions sets the condition flags.
On second looks, we get those cases wrong anyway, so I've applied the patch.
Paul
prev parent reply other threads:[~2009-05-15 2:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-06 6:16 [Qemu-devel] [PATCH 2/2] fix ARMv7 data processing instructions Juha Riihimäki
2009-05-15 2:05 ` Paul Brook
2009-05-15 2:19 ` Paul Brook [this message]
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