Wizard Code: A View on Low-Level Programming

2017-06-19 。。

If you want to donate with Paypal, my contact address is tuomoster AT gmail DOT com .

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projects zero , resurrection , wizard code

project: wizard code


Download Draft #4 .

Wizard Code on Reddit

Note that I keep updating the book without necessarily changing the draft number so please re-download the file now and again if you are interested. :)

Help Needed

If you like the idea of Wizard Code, please read the whole book and send some feedback to tuomoster AT gmail DOT com . This way, the book could be a pleasure to both write and read. Thank you.


Chances are I might contact a publisher about the book later, chances are I might not, but get it while it's hot. If you enjoy this free read, please consider donating to the project with the Paypal button above. :)


Wizard Code is my take on machine programming. The book discusses the C language in depth from a low-level programmer's perspective. You will get familiar with how Unix-like systems execute code, how C code is translated to assembly (and later, trivially, to machine language), and such advanced topics.

The book assumes prior knowledge of the C language, so it's probably not the best pick for the first book on C. Try Kernighan and Ritchie's C Programming Language or another beginner- or intermediate-level text on C first. Take a look at the links section as well.


C machine-oriented discussion
useful new features in C99
computer representation of numeric values
segment-based permissions for code and data
stack-based run model
relation with and translation to assembly
code optimisation techniques
notes on code style
code examples including a world class malloc-allocator
Assembly used where necessary
MMX examples of vector ('SIMD') programming


cover first idea for book front cover
cover first idea for book back cover


Learn C The Hard Way a free book on C programming
Magic Algorithms a collection of tricks
bit twiddling hacks another collection of tricks
HAKMEM legendary MIT collection of tricks
the bit twiddler Stephan Brumme's collection of tricks

Suggested Reading

Rick Booth Inner Loops
Dominic Giampaolo Practical File System Design with the Be File System
Randall Hyde Write Great Code Volume One - Understanding the Machine
Randall Hyde Art of Assembly
Henry S. Warren Hacker's Delight