Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: read sectors from disk failed with timeout
Special Forums Hardware Boot Loaders read sectors from disk failed with timeout Post 302552170 by wljackhero on Friday 2nd of September 2011 12:38:58 AM
Old 09-02-2011
read sectors from disk failed with timeout
i'm writing some code to simulate the boot progress after power on
but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem?
my code would be like this:
Code:
[jack@localhost 1]$ cat boot.S
.code16
#define SETUPLEN  4
#define BOOTSEG  0x7C0
#define INITSEG  0x900

.text
a:
mov $BOOTSEG, %ax
mov %ax, %ds
mov $INITSEG, %ax
mov %ax, %es
mov $256, %cx
sub %si, %si
sub %di, %di
rep
movsw

jmp 0x9000+go-a

go:
mov %cs, %ax
mov %ax, %ds
mov %ax, %es
mov %ax, %ss
mov $0xFF00, %sp

load_setup:
mov $0x0000, %dx
mov $0x0002, %cx
mov $0x0200, %bx
mov $0x0200+SETUPLEN, %ax
int $0x13                           //timeout happens here
jnc ok_load_setup
mov $0x0000,%dx
mov $0x0000,%ax
int $0x13
jmp load_setup

ok_load_setup:
mov $0x00, %dl
mov $0x0800, %ax
int $0x13
mov $0x00, %ch
mov %cx, %cs 
mov $INITSEG, %ax
mov %ax, %es

mov $0x03, %ah
xor %bh, %bh
int $0x10

mov $24, %cx
mov $0x0007, %bx
mov msg, %bp
mov $0x1301, %ax
int $0x10

msg:
.byte 13, 10


.org 510
.word 0xaa55

looking forward to replies.
really appreciate any suggestion.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

ksh read timeout

any idea on how to timeout the read statement for ksh? for bash u can use read -t option -t timeout Cause read to time out and return failure if a complete line of input is not read within timeout seconds. This option has ... (2 Replies)
Discussion started by: ashterix
2 Replies

2. Filesystems, Disks and Memory

SCSI disk spare sectors

Is there a way to determine the number of available spare sectors on a disk ? as it may be useful for notifying a user to take a backup of the disk before it runs into a medium error. (6 Replies)
Discussion started by: rednex
6 Replies

3. Shell Programming and Scripting

read from std i/p with timeout within a script

hello every one , this is my first participation in the forum , I hope it'll be a good start within a script I would like to put some code to read i\p from standard i\p using read command if it reads Y it will terminate the script if it reads N it will continue execution , if no i\p is... (2 Replies)
Discussion started by: Blue_shadow
2 Replies

4. Filesystems, Disks and Memory

Smartmontools and fixing Unreadable Disk Sectors

I found a document: Bad block HOWTO for smartmontools My hard drive is Maxtor: root]# fdisk -lu /dev/hda Disk /dev/hda: 81.9 GB, 81964302336 bytes 255 heads, 63 sectors/track, 9964 cylinders, total 160086528 sectors Units = sectors of 1 * 512 = 512 bytes Disk identifier: 0x3f4e3f4d ... (0 Replies)
Discussion started by: justinian
0 Replies

5. Linux

C++ Code to Access Linux Hard Disk Sectors (with a LoopBack Virtual Hard Disk)

Hi all, I'm kind of new to programming in Linux & c/c++. I'm currently writing a FileManager using Ubuntu Linux(10.10) for Learning Purposes. I've got started on this project by creating a loopback device to be used as my virtual hard disk. After creating the loop back hard disk and mounting it... (23 Replies)
Discussion started by: shen747
23 Replies

6. Linux

read sectors from disk failed with timeout

i'm writing some code to simulate the boot progress after power on but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem? my code would be like this: $ cat boot.S .code16 #define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies

7. UNIX for Advanced & Expert Users

read sectors from disk failed with timeout

i'm writing some code to simulate the boot progress after power on but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem? my code would be like this: $ cat boot.S .code16 #define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies

8. Shell Programming and Scripting

Use of prtdiag to give information of sectors,cylinders,track of each disk

Hi All, i am trying to get sectors,cylinders,track..etc information of all present disks out of solaris machine using prtvtoc command . Output of ptrvtoc command is as below : bash-3.2# prtvtoc /dev/dsk/c1t0d0s0 * /dev/dsk/c1t0d0s0 partition map * * Dimensions: * 512 bytes/sector... (2 Replies)
Discussion started by: omkar.jadhav
2 Replies

9. Shell Programming and Scripting

Read timeout

I saw several thread for this issue but none addresses my issue. I have tried read -t but the result is read bad options My requirement is 1. Ask for input 2. If input = y or no input in 60 seconds then continue processing else exit fi Kindly consider this urgent. (8 Replies)
Discussion started by: rprasad
8 Replies

10. Solaris

EFI disk labeling / understand the parition table / sectors not continue

Hi all, I have a EFI disk and it is use in zfs pool. partition> p Volume: rpool Current partition table (original): Total disk sectors available: 1172107117 + 16384 (reserved sectors) Part Tag Flag First Sector Size Last Sector 0 usr wm ... (8 Replies)
Discussion started by: javanoob
8 Replies

LEARN ABOUT OSX

qc2movie

qc2movie(1)						    BSD General Commands Manual 					       qc2movie(1)

NAME

     qc2movie -- Quartz Composer export tool

SYNOPSIS

     qc2movie inCompositionPath|repositoryCompositionIdentifier outMoviePath width height duration [--parameterKey1 value1 ...]

DESCRIPTION

     qc2movie is a tool that exports a Quartz Composer composition into a QuickTime movie by adding a track containing this composition. It is the
     command line equivalent of exporting a composition for the Quartz Composer application to a QuickTime movie.

OPTIONS

     inCompositionPath|repositoryCompositionIdentifier
			   specifies which composition you want to export. Ar inCompositionPath is the path to the composition. Ar reposito-
			   ryCompositionIdentifier is the identifier of a composition which lies in the Quartz Composer Repository.

     outMoviePath	   specifies movie file path to which the composition will be exported to

     width		   defines the width of the export movie

     height		   defines the height of the export movie

     duration		   defines the length of the export movie

     [--parameterKey1 value1 ...]
			   passes composition specific parameters through the command line tool to the composition

EXAMPLES

     -To create a 10 second QuickTime movie containing a Quartz Composer track of the Particle System composition:
	      qc2movie "/Developer/Examples/Quartz Composer Compositions/Particle Systems/Particle System.qtz" ~/example.mov 640 480 10

     -To merge two video tracks (30s each) together using an image transition protocol abiding composition (Swing for example) in the Quartz
	      Composer Repository (using its identifier: /swing):
	      qc2movie /swing ~/merged-example.mov 640 480 60 --inputMoviePath1 ~/firstVideo.mov --inputMoviePath2 ~/secondVideo.mov --duration 2

     -To apply an image filter protocol abiding composition to the video track of a movie:
	      qc2movie /colorpencil ~/effect-example.mov 640 480 30 --input ~/Video.mov

SEE ALSO

     pcastaction(1)

Mac OS								    July 9 2007 							    Mac OS
All times are GMT -4. The time now is 08:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy