Sudoku Solver Using Mips Instructions

Assemble the below code in Mips Assembler to solve the sudoku below. input the sudoku in the following grid. .data .align 4 #variable of the board board: .byte 0, 6, 0, 1, 0, 4, 0, 5, 0 .byte 0, 0, 8, 3, 0, 5, 6, 0, 0 .byte 2, 0, 0, 0, 0, 0, 0, 0, 1 .byte 8, 0, 0, 4, 0, 7, 0, 0, 6 .byte 0, 0, 6, 0, 0, 0, 3, 0, 0 .byte 7, 0, 0, 9, 0, 1, 0, 0, 4 .byte 5, 0, 0, 0, 0, 0, 0, 0, 2 .byte 0, 0, 7, 2, 0, 6, 9, 0, 0 .byte 0, 4, 0, 5, 0, 8, 0, 7, 0 new_row: .ascii "\n" .text .globl main main: #$s0 has the offset #$s1 has the row #s2 has the coloum #$s3 for the number currently testing move $a0, $zero #first cell with offset 0 jal guess jal print_grid j exit exit: move $a0, $s0 li $v0, 17 syscall guess: #Setup the stack frame and save all the required register's values to be used later sub $sp, $sp, 20 sw $ra, 16($sp) sw $s0, 12($sp) sw $s1, 8($sp) sw $s2, 4($sp) sw $s3, 0($sp) move $s0, $a0 beq $s0, 81, guess_comp #Chekc if it has reached the end of the grid #iF NOT THE END li $s3, 9 div $s0, $s3 mflo $s1 #lo holds the quotient mfhi $s2 #hi has the remainder lb $t0, board+0($s0) beq $t0, 0, guess_it # if equal to zero then guess the number to be placed in it addi $a0, $s0, 1 jal guess j guess_return #$a0 has the number #$a1 has the row #$a2 has the coloumn guess_it: move $a0, $s3 move $a1, $s1 move $a2, $s2 jal check_num bnez $v0, num_exist #else sb $s3, board + 0($s0) addi $a0, $s0, 1 jal guess beqz $v0, guess_return num_exist: sub $s3, $s3, 1 bnez $s3, guess_it sb $zero, board + 0($s0) #else No number is satisfied as already checked from 9 to 1 go back change the previous number and come back li $v0, 1 j guess_return guess_comp: move $v0, $zero guess_return: lw $ra, 16($sp) lw $s0 , 12($sp) lw $s1, 8($sp) lw $s2, 4($sp) lw $s3, 0($sp) addi $sp, $sp, 20 jr $ra #set t1 to an element. decrease t0 by 1 and check it with t1 check_num: li $t0, 9 mul $t1, $a1, $t0 # offset of the first element of the row of the element to guess check_num_row: lb $t2, board+0($t1) beq $t2, $a0, present #Found the element in the row #else addi $t1, $t1, 1 sub $t0, $t0, 1 bnez $t0, check_num_row #else move $t1, $a2 check_num_col: lb $t2, board+0($t1) beq $t2, $a0, present #found the element in the coloumn #else addi $t1, $t1, 9 ble $t1, 81, check_num_col #else #(success) move $v0, $zero j check_success present: li $v0, 1 check_success: jr $ra #Printing #s0 holds the offset #s1 hold row #s2 hols coloumn print_grid: sub $sp, $sp, 16 sw $ra, 12($sp) sw $s2, 8($sp) sw $s1, 4($sp) sw $s0, 0($sp) la $s0, board #number-> board[0,0] move $s1, $zero #row ->0 move $s2, $zero #coloum ->0 print_cell: lb $a0, ($s0) #To print a int li $v0, 1 syscall addi $s0, $s0, 1 #add to offset addi $s2, $s2, 1 #add to coloumn blt $s2, 9, print_cell #if the coloumn is complted la $a0, new_row #to print asciiz li $v0, 4 syscall move $s2, $zero #reset coloumn to zero addi $s1, $s1, 1 #add to row #Check if the row is printed blt $s1,9, print_cell lw $s0, 0($sp) # Restore the $s0 register lw $s1, 4($sp) # Restore the $s1 register lw $s2, 8($sp) # Restore the $s2 register lw $ra, 12($sp) # Restore the return address addi $sp, $sp, 16 # Clean up the stack jr $ra

Trick to see your saved Password.

Let me show you, how this works
This actually manipulate with the source code of the page and convert the password type to text type.
Step-1-Go to your login page.
CHECK IF THE LOGIN CREDENTIAL IS FILLED AS SHOWN.
IF YES READY TO GO.

VICTIM'S PAGE

Step-2-Right click on the password filled and click inspect element

A docked window will be open as shown with code of the field highlighted.

DOCKED WINDOW WITH CODE OF ELEMENT

DOUBLE CLICK ON THE PASSWORD TAG

Step-3- Just double click on the "password" tag, and write it as "text".

WRITE IT "text" AND HIT ENTER

Step-4- Now Just hit Enter.

DONE

YOU WOULD BE ABLE TO VIEW THE PASSWORD ON PASSWORD FIELD.

ThankYou

To convert disk to mbr(error: cannot install winows to gpt disk)

hello readers
today i learned to convert a disk to mbr.
this is caused by :
1.when install linux
2. attempt to install linux
consequences:
cannot install windows(error:cannot install windows on gpt, needs mbr ).
need to know!!!
your entire disk will cleaned
so you can first create a back up using your linux os.
What to do?
1. boot up with your windows installer usb or cdrom, etc
2. press Shift+f10 to open a dos window
3. type ' diskpart' without qoutes.(enter)

4. type 'list disk'.(enter)
5. you can view your online disks and your affected disk(generally disk0).
6. now type 'select disk 0'.(enter)
7. now disk 0 is in your control.
8. now type 'clean'.(enter)
9. now type 'convert mbr'.(enter)
10. your disk is now mbr.
11. now its time to  create a partition.
12. type 'create partition primary'.(enter)
13. type 'format fs ntfs quick'.(enter)
14. done!
15. time to exit
16. type 'exit'(enter)
17. type 'exit'(enter)
now you can click install to continue installation.
thankyou!!!!!!!!!!
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How to create a invisible folder in windows.

Hello Readers,
Today i learnt how to hide a folder in  really different way.
Consequence:- Folder is created with no name.
                         Folder is created with no icon.
                         which mean your folder will not be visible to any one even if it's attributes is not                                  hidden.
The folder created is undetected by any searches.
The folder created is undetected by ADMIN server for surveillance.
it is completely invisible, the person knowing the correct position of the folder on the area can only find the folder.

Step-1-Create a folder(simply right click and new and folder).

Step-2-While renaming the folder

             a.Clear the writing area.

             b.press Alt+1023(on numpad) as shown( Alt pressed + 1 then 0 then 2 then 3).
             Alternatively(press ALT+0160).

             c. Hit enter.

Now, A folder with no name is created.

Step-3- Go to PROPERTIES of the folder created.
             a.Go to CUSTOMIZE tab.
             b.Click on Change Icon Button.

             c.you will see a blank space between the icons.

             d.Click on that blank space.
             e.Click OK.
             f.Click OK.
Now you have created a folder which is completed invisible. to anyone.

But You are only one to who know the X-Y coordinate of the folder on the area.
And if take the mouse pointer on that area you will get a visual of change in color, double click on it and you open your invisible folder.

  OR
 you could just select area to locate your invisible folder.by simply click and dragging your mouse pointer on that area.

.Now you can hide your stuff in that folder and no one can find the folder even if they search the whole computer as they have no name to search.
Thank you.
Dont forget to comment about the helpfulness of the post.

Download Here Drive +, If downloaded earlier and can't download now. INDIA

Hello reader,
Today I learnt how to download a WINDOWS PHONE APP which you have downloaded earlier and cannot download due to region problems.
LIKE: HERE Drive +,etc.
Step-1; Go to APP STORE.
Step-2: Push '...' button to open menu.

Step-3: Go to my apps.
Step-4: Download the app.
 Thank you.
Don't Forget To Comment About The Helpfulness Of the Post.

Transfer, read, write windows phone on linux/ubuntu/,etc

                      
Hello Readers

Today i learnt how to browse windows phone (wp) on linux.
1. open terminal.
2. type "sudo apt-get install gmtp"(without quotes).
3. give your password
4. press y if asked.
5. now you can browse write and transfer file from form windows phone.
Thankyou
dont forget to comment about the helpfulness of the post.

Create your own command prompt(cmd)

Hello reader,
Does your school's computer not allow you to open Command Prompt(cmd)?
Here is the solution.
Basically, it needs some cmd commands .

ALGORITHM:
> Set title of your shell to "Command Prompt".
>Create a function called cmd.
>Set the directory to current directory of application.
>Trigger cmd
Step-1- Open Notepad.
Step-2-Type in the following Code.

CODE:

@echo off
cls
title Command Prompt
echo Welcome to CMD
echo.
:cmd
set /p "cmd=%cd%>"
%cmd%
echo.
goto cmd

Step-3-  Save the file as "cmd.bat".

Open the file created. And here you are with the command prompt of your own.

Don't forget to comment about the helpfulness of the post.
Thank you