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The x86 Adventures series teaches you your computer's language - x86 Assembly Language, from scratch. No prior knowledge is assumed.
[Part 1] Counting with two digits
This is the first chapter of x86 Assembly Adventures. Here we begin with the really basics - How to live in the binary system - A system where instead of 10 digits, we have only two: 0 and 1. If you have ever seen all those zeroes and ones in movies - this is what we are going to learn here.
Don't worry if you never liked math at school, if you can figure out how to buy stuff at the grocery shop, I assure you that you are going to understand the ideas presented here.
We will mainly discuss the following subjects:
At this part of the course we will not yet see any actual assembly code. We have to learn this first, so please be patient :) . All of the exercises for this part are mostly theoretic. You have to sit down with a pen and paper and think a bit. (But really just a bit). It is very important that you do the exercises, or at least be sure that you know how to answer everything before you move on to the next part.
Why learn x86 Assembly Language?
The course is made of video lectures. A lecture could be from a presentation, or a real world example, showing me doing stuff at the computer.
Almost every video lecture is accompanied by some kind of exercise (You will be told during the lecture, don't worry :) ) The exercises are open source. They are attached here as a rar file, however you could also get them on github. (See "About this course" video for more information).
It is crucial that you complete the exercises. You will learn a lot from the lectures, but it is pretty much a waste of your time and money if you don't do the exercises. (Or at least verify that you know how to do them, if you are more experienced).
Course tech stack
No prior knowledge is assumed for this course, but I do assume some things regarding your system, so make sure that everything here describes you:
For the tech savvy, some more details about the tools we are going to use in this course:
Using Linux? Most of the exercises were ported to linux, however the videos show me using windows 7. Contact me if you are not sure.
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|Section 1: Intro|
General information about the course: List of main subjects to be covered during this course, some technical details and some requirements for the course.
|Section 2: Binary numeric system|
We discuss the idea of numeric bases, and specifically we take a look at base 10 and base 2. Finally we have some examples of addition and subtraction in base 2.
We introduce three ways to convert numbers between different numeric representations: Direct evaluation, Finding largest power and Remainder evaluation.
We discuss how to decide which conversion method to use in different cases, and also show a few examples of converting numbers between different bases.
We discuss the Hexadecimal base (Base 16), and show its special relation to base 2.
We answer the question: Why is every hex digit is represented by exactly 4 binary digits?
We discuss the subtraction operation, and also negative numbers, in the base 10 representation. We study how to invoke subtraction using only the addition operation.
We introduce the two's complement representation, which allows us to deal with signed numbers in base 2, just like we did previously in base 10.
We look at examples of signed addition, we deal with some exceptions regarding the two's complement representation, then we view a graphical representation of the positive and negative numbers in the two's complement, and finally we discuss some philosophy of representation.
While many believe that some technologies are long lost gone, we believe that knowing how things really work is what gives you the edge, and help you become a top developer.
Assembly language programming was taught so far in ways that appeal to the experienced developer, however unreachable for the beginner. We put emphasis on creating material that is easy to learn and understand, even for the absolute beginner.