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From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] start.s file
Date: Tue, 12 May 2009 16:30:21 +0200	[thread overview]
Message-ID: <m2my9ijsw2.fsf@ohwell.denx.de> (raw)
In-Reply-To: <OF53EB8404.D5FA2C2D-ON652575B4.004B07EF-652575B4.004ACF51@lntemsys.com> (Deepak Gopalakrishnan's message of "Tue, 12 May 2009 19:17:15 +0530")

Hi Deepak,

> In the quest of finding the code for relocation i have reached the start.s 
> file present in u-boot-1.1.6\cpu\mpc83xx\ folder. 

This is old code you're looking at.  Best would be to look at current
code although this doesn't help here.

> Even its in assembly language (i dont know assembly language beyond
> movlw) i tried to understand that using the descriptions of the
> commands given in this site:
> http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.aixassem/doc/alangref/mfmsr.htm
> but im not able to proceed much. Is there any better way to understand
> this.

The algorithm is implemented in assembler (at the relocate_code label),
so understanding assembler a little bit will be a preliminary to
understanding unless you have access to a device which we in german call
a "N?rnberger Trichter" [its a mythical mechanical learning device] ;)

Cheers
  Detlev

-- 
I haven't lost my mind, I know exactly where I left it.
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de

  reply	other threads:[~2009-05-12 14:30 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-15 18:32 [U-Boot-Users] Add a new command to U-Boot Carlos Filipe Silva
2005-11-15 18:55 ` Cliff Brake
2009-05-07 13:35   ` [U-Boot] " Deepak Gopalakrishnan
2009-05-07 13:40     ` Jerry Van Baren
2009-05-07 13:59       ` Deepak Gopalakrishnan
2009-05-07 15:21         ` Subodh Nijsure
2009-05-08 13:21           ` Deepak Gopalakrishnan
2009-05-08 13:20             ` Jerry Van Baren
2009-05-11  5:32               ` [U-Boot] Uboot reloaction scheme Deepak Gopalakrishnan
2009-05-11  8:16               ` [U-Boot] Add a new command to U-Boot Drasko DRASKOVIC
2009-05-11 14:12                 ` [U-Boot] uboot relocate_code() function Deepak Gopalakrishnan
2009-05-11 14:19                   ` Liu Dave-R63238
2009-05-11 15:52                   ` Timur Tabi
2009-05-11 18:22                   ` Scott Wood
2009-05-12 13:47                     ` [U-Boot] start.s file Deepak Gopalakrishnan
2009-05-12 14:30                       ` Detlev Zundel [this message]
2009-05-18 13:18                         ` [U-Boot] u-boot version Deepak Gopalakrishnan
2009-05-18 13:16                           ` Wolfgang Denk
2009-05-19  9:29                             ` Deepak Gopalakrishnan
2009-05-19 14:14                               ` Detlev Zundel
2009-05-19 14:41                                 ` Deepak Gopalakrishnan
2009-05-19 14:40                                   ` Detlev Zundel
2009-05-20  4:28                                     ` Deepak Gopalakrishnan
2009-05-19 11:17                         ` [U-Boot] U-boot common/environment.c Deepak Gopalakrishnan
2009-05-19 14:34                           ` Detlev Zundel

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