From: Eugene Surovegin <ebs@ebshome.net>
To: Kumar Gala <kumar.gala@motorola.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: [RFC] "indirect" DCR access (40x, BookE)
Date: Fri, 12 Mar 2004 08:20:23 -0800 [thread overview]
Message-ID: <20040312162023.GA24851@gate.ebshome.net> (raw)
In-Reply-To: <1921A482-7431-11D8-AFB6-000393DBC2E8@motorola.com>
On Fri, Mar 12, 2004 at 08:25:23AM -0600, Kumar Gala wrote:
>
> Look in u-boot. They have some user commands that allow
> reading/writing dcr's. These commands are written with self modifying
> code, I would recommend that we reuse that.
>
I would not.
Kumar, I'm aware of code in u-boot :).
Did you read this code comment ?
It clearly states that is not efficient.
It may be OK for a boot loader, because nobody cares much about it
performance.
Let me repeat my point. I _do_ know how to write self-modifying code,
I don't _like_ this approach mostly because it's not very efficient.
Eugene.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-03-12 16:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-12 1:48 [RFC] "indirect" DCR access (40x, BookE) Eugene Surovegin
2004-03-12 2:46 ` Dan Malek
2004-03-12 3:05 ` Eugene Surovegin
2004-03-12 4:44 ` Stephen Williams
2004-03-12 4:54 ` Eugene Surovegin
2004-03-12 14:25 ` Kumar Gala
2004-03-12 14:53 ` Chuck Meade
2004-03-12 16:20 ` Eugene Surovegin [this message]
2004-03-12 18:01 ` Dan Malek
2004-03-19 4:00 ` Benjamin Herrenschmidt
2004-03-23 2:47 ` Eugene Surovegin
2004-04-01 5:36 ` Kumar Gala
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