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From: Frank Kotler <fbkotler@comcast.net>
To: Tu Ha <httu@tma.com.vn>
Cc: linux-assembly@vger.kernel.org
Subject: Re: please help me
Date: Mon, 24 Apr 2006 00:11:51 -0400	[thread overview]
Message-ID: <444C5007.7080203@comcast.net> (raw)
In-Reply-To: <1145873491.3998.17.camel@gaucon>

Tu Ha wrote:

...
> It seems I cannot reference to the "char" memory location. Why?

Wrong combination of ".org" and ds register, I think. Either use ".org 
0x7C00", and load ds from cs (presumably zero) as you do (you'll have to 
adjust the .org on the signature, too). Or... leave it at ".org 0" (I 
assume that's what Gas defaults to), and load ds with 0x7C0. (bios loads 
us at 0x7C00, which can be represented as either 0000:7C00 or 07C0:0000).

 > How can I debug the binary?

Bochs? I've never used it, but I understand it'll debug bootsectors...

Happy bootin',
Frank



  reply	other threads:[~2006-04-24  4:11 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-24 10:11 please help me Tu Ha
2006-04-24  4:11 ` Frank Kotler [this message]
2006-04-24 12:09   ` Tu Ha
  -- strict thread matches above, loose matches on Subject: below --
2014-09-10 12:01 Please Help Me Alina Yukov
2014-08-20 15:53 PLEASE HELP ME Abdoul Issouf
2014-08-20 15:20 mrissouf issouf
2011-11-26  6:49 Please help me shibin k reeny
2009-12-21  9:15 please " rajkumar
2009-12-21 10:48 ` Emmanuel Florac
2007-01-05  8:01 Please " Debasree Mallick
2007-01-05  8:04 ` Justin Patrin
2007-01-05  8:14   ` Debasree Mallick
2007-01-05  8:43     ` Matthew Palmer
2007-01-05  8:54       ` Marcin Juszkiewicz
2007-01-10  7:13       ` Debasree Mallick
2007-01-11  0:17         ` Justin Patrin
2006-08-28 12:30 Kumar, Satish B
2006-08-28 14:30 ` Mouhammad Tayseer Alquoatli
     [not found] <000101c6734a$573086d0$c41e1ec7@TuThuyHa>
2006-05-09 16:17 ` please " Frank Kotler
2006-05-10 14:05   ` httu
2004-03-30  9:48 Sofia Pujeh
2003-09-19  8:55 Vijay Angelo
2003-09-19  9:45 ` Arvanitis Kostas
1999-12-31  2:29 Please " dony
1999-12-27  8:42 ` Raphael Bossek
2000-01-02  7:23   ` dony
1999-12-30  2:11 ` Brendan J Simon
     [not found]   ` <38701F3A.FAD6263E@huawei.com.cn>
1999-12-30  4:23     ` Brendan J Simon
     [not found]       ` <38704D0B.94438516@huawei.com.cn>
1999-12-30  6:46         ` Brendan J Simon
1999-12-30 13:25           ` Charles Lepple
     [not found] ` <000401bf5016$4757c420$0201a8c0@home>
1999-12-31  8:37   ` dony
     [not found]     ` <000c01bf5086$3e358d80$0201a8c0@home>
2000-01-01  1:58       ` dony
     [not found]         ` <001801bf50e1$6d3ad8a0$0201a8c0@home>
2000-01-01  8:46           ` dony
1999-12-31  8:40   ` dony

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