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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PATCH] PPC: Use r2 instead of r29 as global data pointer
Date: Sun, 17 Feb 2008 23:05:06 +0100	[thread overview]
Message-ID: <20080217220506.D406924544@gemini.denx.de> (raw)
In-Reply-To: Your message of "Sun, 17 Feb 2008 17:20:31 +0100." <47B85ECF.5080207@semihalf.com>

Dear Rafal,

in message <47B85ECF.5080207@semihalf.com> you wrote:
> 
> How about switching r14 (GOT ptr) to r13 in a similar way? Quite like the r2,
> r13 is a dedicated register (small data area purposes) and it would let us
> avoid using the -ffixed completely.

I have to admit that I don;t understand enough  of  these  things  to
judge if R13 (listed as "small data area pointer") is really free for
use for our purposes.

> I can provide patches, but let me know your thoughts first.

I guess you already ran some tests? If you are sure about this, and if
it really works, then please submit your patches!

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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Merchandise  Should  Contact  Antimatter  in Any Form, a Catastrophic
Explosion Will Result.

      reply	other threads:[~2008-02-17 22:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-14 22:14 [U-Boot-Users] [PATCH] PPC: Use r2 instead of r29 as global data pointer Wolfgang Denk
2008-02-17 16:20 ` Rafal Jaworowski
2008-02-17 22:05   ` Wolfgang Denk [this message]

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