Re: [Qemu-devel] [Qemu-ppc] [PATCH] PPC64: Add support for ldbrx and stdbrx instructions

[David Gibson]

On Wed, Feb 08, 2012 at 02:27:35PM +0100, Thomas Huth wrote:
> Am Wed, 8 Feb 2012 21:48:40 +1100
> schrieb David Gibson <address@hidden>:
> 
> > On Wed, Feb 08, 2012 at 10:54:21AM +0400, malc wrote:
> > > On Wed, 8 Feb 2012, David Gibson wrote:
> > > 
> > > > From: Thomas Huth <address@hidden>
> > > > 
> > > > These instructions for loading and storing byte-swapped 64-bit values 
> > > > have
> > > > been introduced in PowerISA 2.06.
> > > > 
> > > > Signed-off-by: Thomas Huth <address@hidden>
> > > > ---
> > > >  target-ppc/translate.c |   30 ++++++++++++++++++++++++++++++
> > > >  1 files changed, 30 insertions(+), 0 deletions(-)
> > > 
> > > I seem to recall that POWER5 machine i had access to didn't have 
> > > ld/stdbrx while CBE did have it (or was it the other way around?)
> > > so question is - is PPC_64B sufficient?
> > 
> > Ah, I think it's not.  I think I spotted that before, but then forgot
> > about it.  Thanks for the reminder.
> 
> Maybe it's a better idea to use PPC_64BX here? ... but that flag seems
> to be missing in POWERPC_INSNS_POWER7... David, could PPC_64BX also be
> included in that flag list?

Um.. what exactly do you mean by 64BX?

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson