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

Zhu Ebony-r57400 ebony.zhu at freescale.com
Tue Jul 31 13:36:03 EST 2007


 Hi Sergei,

I did some further tests and some development work in past several
months,
but due to project schedule and limited bandwidth, no patches can be
submitted
to the list by now. Anyway, I will keep you and the community updated
once there
is some progress.

Thanks.

B.R.
Ebony

> -----Original Message-----
> From: Sergei Shtylyov [mailto:sshtylyov at ru.mvista.com] 
> Sent: Monday, July 30, 2007 10:57 PM
> To: Zhu Ebony-r57400
> Cc: Kumar Gala; linuxppc-dev at ozlabs.org; paulus at samba.org
> Subject: Re: [patch][0/5] powerpc V2 : Add support to fully 
> comply with IEEE-754 standard
> 
> Hello.
> 
> Zhu Ebony-r57400 wrote:
> 
> >>>>>>Did you end up getting testfloat running?  I'd like to see some 
> >>>>>>testing results before accepting these patches.  I 
> think estfloat 
> >>>>>>is our best bet at this point.
> 
> >>>>>Hi Kumar,
> 
> >>>>>I looked into the testfloat suit, and found all the 
> instructions it 
> >>>>>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 
> >>>SPARC-Solaris-gcc only, and a template for user to porting his own 
> >>>processor. Some general instructions are implemented in C, 
> but some 
> >>>CPU specific instructions like evfsmul need to be implemented 
> >>>assemblely. To build it with e500 compiler we still Have 
> some porting 
> >>>work to do.
> 
> >>I wouldn't worry too much about the vector forms.  If the scalar 
> >>single fp and double fp test out ok the vectors are pretty much 
> >>similar enough.
> 
> >>Lets just get the scalar versions tested and work out any issues 
> >>there.
> 
> > OK, I will focus on scalar SFPF and DPFP versions first.
> 
>     Any progress with this patchset?
> 
> WBR, Sergei
> 



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