This book will teach students how to design digital logic circuits, specifically combinational and sequential circuits. Students will learn how to put these two types of circuits together to form dedicated and general-purpose microprocessors. This book is unique in that it combines the use of logic principles and the building of individual components to create data paths and control units, and finally the building of real dedicated custom microprocessors and general-purpose microprocessors. After understanding the material in the book, students will be able to design simple microprocessors and implement them in real hardware. Features: Contains many complete examples. Both schematic and VHDL code for all examples. Actual implementation of the circuits on the optional Altera UP2 development board. Teaches students how to implement a working microprocessor that they have designed on a FPGA chip (real hardware). Table Of Contents: Chapter 1. Designing Microprocessors 1.1 Overview of a Microprocessor 1.2 Design Abstraction Levels 1.3 Examples of a 2-to-1 Multiplexer 1.4 Introduction to VHDL 1.5 Synthesis 1.6 Going Forward 1.7 Summary Checklist 1.8 Problems Chapter 2. Digital Circuits 2.1 Binary Numbers 2.2 Binary Switch 2.3 Basic Logic Operators and Logic Expres