In this chapter, we had a brief introduction to addressing modes on the modern Intel CPU. Some resources define more addressing modes, but, let me reiterate that as a huge fan of Occam's Razor, I do not see any reason to multiply things without need, as most of those additional modes are just variations of the modes already explained above.

Thus far, we saw how both code and data may be addressed, which is mostly the essence of programming in the Assembly language. As you will witness while reading this book and trying the code yourself, at least 90% of writing a program in Assembly is writing how you want some data to be moved, where from and where to (the remaining 10% are actual operations on data).

By getting this far, we are ready to dive deeper into Assembly programming and try to actually write working programs, rather than typing a few lines into a template and watching registers change in the debugger.

The next section of this book, the Practical Assembly section, begins with a chapter dedicated to parallel data processing. Then, you will learn the basics of macros and get acquainted with data structures manipulation mechanisms, and we will see how our Assembly code can interact with the surrounding operating system, which is quite important.