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Series Editor
Jean-Charles Pomerol
Microprocessor 1
Prolegomena – Calculation and Storage Functions – Models of Computation and Computer Architecture
Philippe Darche
First published 2020 in Great Britain and the United States by ISTE Ltd and John Wiley & Sons, Inc.
Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms and licenses issued by the CLA. Enquiries concerning reproduction outside these terms should be sent to the publishers at the undermentioned address:
ISTE Ltd
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UK
John Wiley & Sons, Inc.
111 River Street
Hoboken, NJ 07030
USA
© ISTE Ltd 2020
The rights of Philippe Darche to be identified as the author of this work have been asserted by him in accordance with the Copyright, Designs and Patents Act 1988.
Library of Congress Control Number: 2020938715
British Library Cataloguing-in-Publication Data
A CIP record for this book is available from the British Library
ISBN 978-1-78630-563-3
Quotation
Every advantage has its disadvantages and vice versa.
Shadokian philosophy1
1 1 The Shadoks are the main characters from an experimental cartoon produced by the Research Office of the Office de Radiodiffusion-Télévision Française (ORTF). The twominute-long episodes of this daily cult series were broadcast on ORTF’s first channel (the only one at the time!) beginning in 1968. The birds were drawn simply and quickly using an experimental device called an animograph.The Shadoks are ridiculous, stupid and mean. Their intellectual capacities are completely unusual. For example, they are known for bouncing up and down, but it is not clear why! Their vocabulary consists of four words: GA, BU, ZO and MEU, which are also the four digits in their number system (base 4) and the musical notes in their four-tone scale. Their philosophy is comprised of famous mottos such as the one cited in this book.
Preface
Computer systems (hardware and software) are becoming increasingly complex, embedded and transparent. It therefore is becoming difficult to delve into basic concepts in order to fully understand how they work. In order to accomplish this, one approach is to take an interest in the history of the domain. A second way is to soak up technology by reading datasheets for electronic components and patents. Last but not least is reading research articles. I have tried to follow all three paths throughout the writing of this series of books, with the aim of explaining the hardware and software operations of the microprocessor, the modern and integrated form of the central unit.
About the book
This first work in a five-volume series deals with the general operating principles of the microprocessor. It focuses in particular on the first two generations of this programmable component, that is, those
