This book is available in both Kindle ebook and printed format. For narrow screen devices, there are slight formatting issues and some program lines overflow. You DO NOT need Kindle hardware to use this book. New to the second edition.In this second edition, we have added two new chapters. Chap 8 covers the Thumb instructions. The floating point unit (FPU) instructions and programming are covered in chapter 9. Who uses ARM? Currently ARM CPU is licensed and produced by more than 200 companies and is the dominant CPU chip in both cell phones and tablets. Given its RISC architecture and powerful 32-bit instructions set, it can be used for both 8-bit and 32-bit embedded products. The ARM corp. has already defined the 64-bit instruction extension and for that reason many Laptop and Server manufactures are introducing ARM-based Laptop and Servers. Who will use our textbook? The primary audience of our textbook on ARM (ARM Assembly Language Programming & Architecture by Mazidi, Naimi, and Chen) is undergraduate engineering students in Electrical and Computer Engineering departments. It can also be used by practicing engineers who need to move away from 8- and 16-bit legacy chips such as the 8051, AVR, PIC and HCS08/12 family of microcontrollers to ARM. Designers of the x86-based systems wanting to design ARM-based products can also benefit from this textbook.