Re: asm inline hppa level0 kernel

Bill Allombert on Fri, 05 Nov 2004 17:07:31 +0100

[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]

Re: asm inline hppa level0 kernel

To: pari-dev@list.cr.yp.to
Subject: Re: asm inline hppa level0 kernel
From: Bill Allombert <allomber@math.u-bordeaux.fr>
Date: Fri, 5 Nov 2004 16:59:52 +0100
Delivery-date: Fri, 05 Nov 2004 17:07:31 +0100
In-reply-to: <20041031231702.GA29999@pari.math.u-bordeaux.fr>
Mail-followup-to: pari-dev@list.cr.yp.to
Mailing-list: contact pari-dev-help@list.cr.yp.to; run by ezmlm
References: <20041028130557.GV7001@seventeen> <20041029102819.GS7001@seventeen> <20041031231702.GA29999@pari.math.u-bordeaux.fr>
User-agent: Mutt/1.3.28i

On Mon, Nov 01, 2004 at 12:17:02AM +0100, Bill Allombert wrote:
> The attached patch implement a hppa64 inline asm kernel (to use with
> --kernel=hppa64). However I use 4 32x32->64 multiplies (using the
> naive formula). It can be possible to reach 3 using the classical
> formula x1*y2+x2*y2=(x1+x2)*(y1+y2)-x1*y1-x2*y2, but we have to
> take care that the addition (x1+x2) and (y1+y2) might overflow 32bit.

Well I have commited that patch and add support for hppa64 to Configure.

Cheers,
Bill.

References:
- Re: asm inline hppa level0 kernel
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>

Prev by Date: Opteron performance
Next by Date: Re: Opteron performance
Previous by thread: Re: asm inline hppa level0 kernel
Next by thread: Opteron performance
Index(es):
- Date
- Thread