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Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions


From: Richard Henderson
Subject: Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions
Date: Tue, 08 Jul 2014 11:12:20 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 07/08/2014 09:13 AM, Al Viro wrote:
> Frankly, I suspect that it's better to have qemu-system-alpha behave like
> the actual hardware does (including "FPCR.DNOD can't be set") and keep the
> linux-user behaviour as is, for somebody brave and masochistic enough to
> fight that one.  And no, it's nowhere near "just let denorms ride through
> the normal softfloat code and play a bit with the flags it might raise".
> And then there's netbsd/alpha and openbsd/alpha, so in theory somebody might
> want to play with their software completion semantics (not identical to Linux
> one) for the sake of yet-to-be-written bsd-user alpha support...

You're probably right there.

I've pushed a couple more patches to the branch, split out from your patch
here.  I believe I've got it all, and havn't mucked things up in the process.
I'll run some tests later today when I've got time.


r~



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