From: Jun Sun <jsun@mvista.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org, jsun@mvista.com
Subject: Re: when does do_fpe() get called? (or when does FPE happen?)
Date: Tue, 28 Jan 2003 09:37:42 -0800 [thread overview]
Message-ID: <20030128093742.V11633@mvista.com> (raw)
In-Reply-To: <20030128043744.A24686@linux-mips.org>; from ralf@linux-mips.org on Tue, Jan 28, 2003 at 04:37:44AM +0100
On Tue, Jan 28, 2003 at 04:37:44AM +0100, Ralf Baechle wrote:
> On Mon, Jan 27, 2003 at 07:04:23PM -0800, Jun Sun wrote:
>
> > Can someone enlighten me a little? I am trying
> > to figure out what the FPU state should be (or can be) when
> > we are inside do_fpe() routine.
>
> Checkout the various flags in $fcr31. Whenever one of the enabled
> exceptions is triggered we get to handle_fpe via do_fpe. In addition
> the unimplemented exception can also result in invocation of do_fpe.
>
So it seems safe to assume FPU should have been enabled when we get
here, right?
Jun
next prev parent reply other threads:[~2003-01-28 17:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-28 3:04 when does do_fpe() get called? (or when does FPE happen?) Jun Sun
2003-01-28 3:37 ` Ralf Baechle
2003-01-28 17:37 ` Jun Sun [this message]
2003-01-28 17:45 ` Ralf Baechle
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