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Hello and welcome to today's lecture.

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In this lecture, we are going to delve into the fascinating world of debugging and code execution analysis

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using a powerful tool known as data display debugger or triple D.

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So if you are a Linux enthusiast or software developer looking to enhance your debugging skills, you

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will learn that topic in this course.

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So let's jump right in the data display debugger, often abbreviated as d, d d is an indispensable

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debugging tool that comes with a user friendly graphical interface tailored for the Linux operating

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system.

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Its primary objective is to assist developers in diagnosing, understanding and rectifying issues with

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their code by providing an intuitive visual representation of program execution.

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So triple D, d, d, d, also known as the empowers developers to analyze the behavior of their code

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step by step, making the debugging process more efficient and productive.

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So before we dive deeper, uh, let's ensure you have a d d d up and running on your system.

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Installation is a breeze.

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Just open your terminal and execute this sudo here.

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Sudo apt install d d d and enter your password for account.

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And that's it.

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So this will fetch and install the package from your linux package manager.

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And once installed you will be ready to harness the power of triple D to its fullest potential.

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So before we proceed further, let's take a moment to understand why debugging is such a crucial aspect

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of software development.

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So even most experienced developers encounter bugs, unexpected behaviors and logical errors in their

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code.

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So debugging helps us identify, isolate and correct these issues, ensuring our programs run smoothly

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and reliably d d.

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D acts as a guiding light in this process, allowing us to gain insights into how our code is executed

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and where potential pitfalls lie.

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So to give you practical examples of D these capabilities, we will embark on our coding journey together.

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So in this section we will be working on a program that might not produce any visible output.

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However, our goal is not to see the output, but to explore the intricacies of the code, execution

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and concepts registers here.

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So but we will also, um, we might add some outputs here, but now we will need to open our this system

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and start our.

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Uh, process here.

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But, uh, here now, we will need to open the system, so we will name our.

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Then click on Create new project, delete this existing project here and that's it.

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So here, after installing the data display debugger, we will just write this short code here, which

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we will move this here and we will name it move that ASM here.

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So add the command, move that ASM, add the section data here so we will add almost six numbers be

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nom nom de nom and ki nam one ki nam two and ki nam three.

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Here.

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Now let's add this here be Nam db here DB one, two, three, W num.

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So these are the data variables here that we will use.

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W d is one, two, three, 45D num.

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Uh DD1, two, three, four, five, six, seven, 890.

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And q num one.

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D Q Here is.

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Is going to be like, you know, from 1 to 0 and 1 to 9, one to.

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Here.

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That's it.

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And we will also add M2 and M3 here.

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M2 is again available to the queue here.

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And one, two, three, four, five, six here.

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And queue number three is going to be the queue.

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This is going to be our number point 14.

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So we will also add this section VSS here.

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Action BS.

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We will not write anything for it and we will also add action text.

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Then we will create a global main.

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And in main function here.

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They will firstly pass.

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Uh, we will.

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Firstly, in this main function, we will pass the.

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Yes, uh, we will push the RPC and.

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Here.

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Posh RB.

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He.

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Who RSVP'd to RSVP.

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Racks.

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And this one.

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So this is to.

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Uh, this is Phil.

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The racks with once.

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And move a little bit.

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And here we will enter the byte num here.

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The p norm.

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This is this actually does not clear upper bits of rax so does not does not clear upper bits of Rax.

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So you can also write the crucial points like upper case here.

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Uh, to make attention.

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So we will also add X or here.

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Better so x or racks rax here.

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So this is for the, uh, clearing the rax.

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Clear the racks and move again.

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L and bite here.

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So again, we will pass this beenham here to make the rags to have the correct value here with this.

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In in here we have now racks has the correct value.

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And after that we will move the racks minus one.

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So we will fill the.

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Racks with ones.

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And here, Rex.

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One.

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Or will racks with once.

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And after that, move the axe here to war here.

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And we will also pass the numb here.

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W nom.

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This does not clear the upper bits of rax again.

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Actually, since we are.

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Again copying this here so it will be better.

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As one spaces new lines here.

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So fill racks with once and again this does does not clear does not clear upper bits of racks.

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And again XOR here.

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Racks.

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Racks Here we are clearing the racks.

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You you learned that X or in lecture actually.

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But it's same here and now.

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We will move the ax word.

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W name again.

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And here again our now racks again here now Racks has the correct value.

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And after that we will move the.

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We will move the racks.

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Rags minus one.

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This is for.

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Uh, fill racks with ones and move racks.

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He walked here.

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In this case, we will also pass the Num one.

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This again.

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Uh, does does this actually, uh, does clear upper.

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It's off racks and you will learn why these are not actually, this one is clear.

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Right.

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So now we're going to do after that is we will, uh, make that one apparent.

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Um.

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Always in a register.

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And after that we will need to source operand to an immediate value.

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So we'll learn that here.

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Or here.

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You numb to.

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Racks here.

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One operand.

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Always a register.

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And move here Cracks.

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This is the source of her.

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Um.

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Immediate value.

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Move.

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KXM0 here.

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And.

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X.

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X zero.

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And we'll here Paascu Norm three.

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The instruction.

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And floating point.

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And after that we will move RSP.

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To.

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And pop here.

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And after that, we'll finally read.

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So we will save the source file.

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A source file as the move that move that RSM.

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And we will build and run it to see if it works in the next lecture.

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So actually, let's.

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Create a new folder.

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Move.

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And I will save it.

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Move that --.

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So that's it.

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And I'm waiting you in next lecture.