From: Andrew Kirilenko <icedank@gmx.net>
To: linux-kernel@vger.kernel.org
Subject: Re: Searching for string problems
Date: Wed, 23 Apr 2003 22:48:35 +0300 [thread overview]
Message-ID: <200304232248.35985.icedank@gmx.net> (raw)
In-Reply-To: <Pine.LNX.4.53.0304231529320.25963@chaos>
Hello!
Big thanks to all of you. Now I'm starting to understand how it's working.
Here is current version of my code:
-->
jmp cl_start
cl_id_str: .string "STRING"
cl_start:
cld
movw %cs, %ax
movw %ax, %ds
movw $0xe000, %ax
movw %ax, %es
movb $0, %al
xor %bx, %bx # start of segment
cl_compare:
movw $cl_id_str, %si
movw $cl_start, %cx
subw %si, %cx
decw %cx
movw %bx, %di
repz cmpsb
je cl_compare_done_good
incw %bx
cmpw $0xffff, %bx # are we at the end of segment
je cl_compare_done
jmp cl_compare
cl_compare_done_good:
movb $1, %al
cl_compare_done:
<--
And this code won't work as well :(
Unfortunately, I can't start DOS and check, cause there is no video and
keyboard controller on that PC.
Best reagrds,
Andrew.
next prev parent reply other threads:[~2003-04-23 19:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-23 16:58 Searching for string problems Andrew Kirilenko
2003-04-23 17:39 ` Richard B. Johnson
2003-04-23 18:05 ` Andrew Kirilenko
2003-04-23 18:15 ` Richard B. Johnson
2003-04-23 18:25 ` Andrew Kirilenko
2003-04-23 18:56 ` Richard B. Johnson
2003-04-23 19:00 ` Andrew Kirilenko
2003-04-23 19:11 ` Randy.Dunlap
2003-04-23 19:37 ` Richard B. Johnson
2003-04-23 19:48 ` Andrew Kirilenko [this message]
2003-04-23 20:05 ` Randy.Dunlap
2003-04-23 20:05 ` Richard B. Johnson
2003-04-23 20:12 ` Andrew Kirilenko
2003-04-23 18:59 ` Randy.Dunlap
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