RE: [patch][0/5] powerpc V2 : Add support to fully comply with IEEE-754 standard

["Zhu Ebony-r57400" <ebony.zhu@freescale.com>]

=20

> -----Original Message-----
> From: Kumar Gala [mailto:galak@kernel.crashing.org]=20
> Sent: Thursday, February 08, 2007 1:19 PM
> 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 7, 2007, at 9:50 PM, Zhu Ebony-r57400 wrote:
>=20
> > Hi Paul,
> >
> > These are the re-sent patches to add support to fully comply with
> > IEEE-754 standard for E500/E500v2 core when hardware floating point=20
> > compiling is used. Comparison with last patches I've submitted, the=20
> > following points was changed:
> >
> > 1. Add a rounding exception handler, to handle the exceptions that=20
> > would occur when rounding towards +Inf/-Inf
> >
> > 2. Using the existing exception entering/returning routine, and get=20
> > the exception instructions from regs->nip instead of=20
> reading from SRR0
> >
> > Thank you all for the comments you gave to me!
>=20
> Did you end up getting testfloat running?  I'd like to see=20
> some testing results before accepting these patches.  I think=20
> testfloat is our best bet at this point.
>=20
Hi Kumar,

I looked into the testfloat suit, and found all the instructions it
tests (more than 50)should be
implemented based on ASM. And also the SoftFloat test suite, which the
Testfloat is comparing against, should be ported to powerpc platform. I
think these work needs some time do finish. So could you review my
patches and
give some comments first? Thank you.

B.R.
Ebony