This book introduces the concepts of how computer hardware works from a programmer’s point of view. A programmer’s job is to design a sequence of instructions that will cause the hardware to perform operations that solve a problem. This book looks at these instructions by exploring how C/C++ language constructs are implemented at the instruction set architecture level.
The specific architecture presented in this book is the ARM® as implemented on the Raspberry Pi®. The operating system is Raspbian, which is based on a Linux kernel and includes a GNU programming environment.
The basic guidelines I followed in creating this book are:
Understanding how the hardware works helps you to become a better programmer.
Learning is easier if it builds upon concepts you already know.
“Real world” hardware and software make a more interesting platform for learning theoretical concepts.
The tools used for teaching should be inexpensive and readily available.
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