http://www.egr.unlv.edu/~ed/x86.html

x86-64 Assembly Language Programming with Ubuntu

By Ed Jorgensen

 
x86-64 Assembly Language Programming with Ubuntu Cover Page



The purpose of this text is to provide a reference for University
level assembly language and systems programming courses. 
Specifically, this text addresses the x86-64 instruction set for the
popular x86-64 class of processors using the Ubuntu 64-bit Operating
System (OS).  While the provided code and various examples should
work under any Linux-based 64-bit OS, they have only been tested
under Ubuntu 14/16/18 LTS (64-bit).



x86 Text, PDF Format:  x86-64 Assembly Language Programming with
Ubuntu