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Subject: RE: [patch][0/5] powerpc V2 : Add support to fully comply with
	IEEE-754 standard
Date: Fri, 9 Feb 2007 13:15:12 +0800
Message-ID: <32F3CC26D4DAC44E8ECD07155727A46E8B7F7F@zch01exm20.fsl.freescale.net>
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From: "Zhu Ebony-r57400" <ebony.zhu@freescale.com>
To: "Kumar Gala" <galak@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org
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=20

> -----Original Message-----
> From: Kumar Gala [mailto:galak@kernel.crashing.org]=20
> Sent: Friday, February 09, 2007 1:19 AM
> To: Zhu Ebony-r57400
> Cc: paulus@samba.org; linuxppc-dev@ozlabs.org
> Subject: Re: [patch][0/5] powerpc V2 : Add support to fully=20
> comply with IEEE-754 standard
>=20
>=20
> On Feb 8, 2007, at 2:08 AM, Zhu Ebony-r57400 wrote:
>=20
> >>>>
> >>>> Did you end up getting testfloat running?  I'd like to see some=20
> >>>> testing results before accepting these patches.  I think
> >> testfloat is
> >>>> our best bet at this point.
> >>>>
> >>> Hi Kumar,
> >>>
> >>> I looked into the testfloat suit, and found all the=20
> instructions it=20
> >>> tests (more than 50)should be implemented based on ASM.
> >>
> >> Don't follow?  Can't you build it with the e500 compiler?
> >>
> > The TestFloat suite provided the target of 386-Win32-gcc and=20
> > SPARC-Solaris-gcc only, and a template for user to porting his own=20
> > processor. Some general instructions are implemented in C, but some=20
> > CPU specific instructions like evfsmul need to be implemented=20
> > assemblely. To build it with e500 compiler we still Have=20
> some porting=20
> > work to do.
>=20
> I wouldn't worry too much about the vector forms.  If the=20
> scalar single fp and double fp test out ok the vectors are=20
> pretty much similar enough.
>=20
> Lets just get the scalar versions tested and work out any=20
> issues there.
>=20
> - k

OK, I will focus on scalar SFPF and DPFP versions first.