Índice: Introduction to the Motorola Microprocessors and Controllers *Microcomputer and Microprocessor Characteristics *Representation of Numbers and Characters *Introduction to the M68000 Family *MC68000 Assembly Language and Basic Instructions *Data Transfer, Program Control and Subroutines *Arithmetic Operations *Logical and Bit Operations *Programming Techniques *System Operation *Exception Processing *Interfacing and I/O Programming *System Design and Hardware Considerations Appendix I: ASCII Character Set and Powers of Two and Sixteen Appendix II: MC68000 Characteristics Appendix III: Assembly Language Set Appendix IV: Machine Language Characteristics of the MC68000, MC68008 and MC68010 Appendix V: Comparison of 68000 Family Processors Answers to Selected Exercises Index.

Provides manufacturer's hardware and performance data on the 68000 microprocessor series. The book also examines data organization and sets out the capabilities for each processor and enumerates specifications and operating details. There is also a discussion of the hardware architecture.

'Why are there all these different processor architectures and what do they all mean? Which processor will I use? How should I choose it?' Given the task of selecting an architecture or design approach, both engineers and managers require a knowledge of the whole system and an explanation of the design tradeoffs and their effects. This is information that rarely appears in data sheets or user manuals. This book fills that knowledge gap.Section 1 provides a primer and history of the three basic microprocessor architectures. Section 2 describes the ways in which the architectures react with the system. Section 3 looks at some more commercial aspects such as semiconductor technology, the design cycle, and selection criteria. The appendices provide benchmarking data and binary compatibility standards. Since the first edition of this book was published, much has happened within the industry. The Power PC architecture has appeared and RISC has become a more significant challenger to CISC. The book now includes new material on Power PC, and a complete chapter devoted to understanding the RISC challenge. The examples used in the text have been based on Motorola microprocessor families, but the system considerations are also applicable to other processors. For this reason comparisons to other designs have been included, and an overview of other processors including the Intel 80x86 and Pentium, DEC Alpha, SUN Sparc, and MIPS range has been given. Steve Heath has been involved in the design and development of microprocessor based systems since 1982. These designs have included VMEbus systems, microcontrollers, IBM PCs, Apple Macintoshes, and both CISC and RISC based multiprocessor systems, while using operating systems as varied as MS-DOS, UNIX, Macintosh OS and real time kernels. An avid user of computer systems, he has written numerous articles and papers for the electronics press, as well as books from Butterworth-Heinemann including VMEbus: A Practical Companion; PowerPC: A Practical Companion; MAC User's Pocket Book; UNIX Pocket Book; Upgrading Your PC Pocket Book; Upgrading Your MAC Pocket Book; and Effective PC Networking.

* Emphasis is on timing diagrams and analysis of microprocessor read/write cycles so students get a clear understanding of the timing requirements of a microprocessor..* In-depth presentation of both microprocessor architecture and microprocessor organization gives students the most complete of 68000 microprocessor hardware..* Thorough introduction to 68000 assembly language programming (four chapters on this topic)..

Covering routines for the most popular machines - ATT computer, the Atari 68000, the Commodore Amiga and the Macintosh - this book takes readers through all aspects of assembly language programming in a step-by-step fashion. It provides a complete, graduated approach to the entire line of 68000's, giving examples and exercises for each step so that readers can acquire all of the necessary skills. Topics include the 68000 programmer's model, explanations of number systems, subroutines and advanced assembler concepts, such as external references, linking, debugging and macros.