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Re: [Qemu-ppc] ppc: TCG and FP exceptions, is it right ?


From: Benjamin Herrenschmidt
Subject: Re: [Qemu-ppc] ppc: TCG and FP exceptions, is it right ?
Date: Tue, 26 Jul 2016 07:38:34 +1000

On Mon, 2016-07-25 at 19:05 +0530, Richard Henderson wrote:
> > An additional note is that if FE0/FE1 are 0, we still in some case
> > leave an exception behind in cs->exception_index. Now, I *think*
> > that's ok, it will just be silently dropped at some point, but I am not
> > 100% certain as that's a part of TCG I'm an not super familiar with
> > yet.
> 
> That should be fine.  All exits from the loop should set a new value here as 
> they exit.

Right though it *might* interact with the trace exception code (single
step), I'll have at to dig a bit.

I suspect I need to produce test cases :-)

Cheers,
Ben.




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