Also by A. P. Stephenson
Discovering BBC Micro Machine Code
0 246 12160 2
Other Granada books for BBC Micro users
Introducing the BBC Micro
Ian Sinclair
0 246 12146 7
The BBC Micro: An Expert Guide
Mike James
0 246 12014 2
Word Processing for Beginners
Susan Curran
0 246 12353 2
BBC Micro Graphics and Sound
Steve Money
0 246 12156 4
6502 Machine Code for Humans
Alan Toothill and David Barrow
0 246 12076 2
Practical Programs for the BBC Micro
Owen and Audrey Bishop
0 246 12405 9
21 Games for the BBC Micro
Mike James, S. M. Gee and Kay Ewbank
0 246 12103 3
Disk Systems for the BBC Micro
Jan Sinclair
0 246 12325 ,7
Advanced Machine Code Techniques for The BBC Micro
A. P. Stephenson
and D. J. Stephenson
GRANADA
London Toronto Sydney New York
Granada Technical Books
Granada Publishing Ltd
8 Grafton Street, London W1X 3LA
First Published in Great Britain by
Granada Publishing 1984
Copyright © 1984 A. P. Stephenson and D. J. Stephenson
British Library Cataloguing in Publication Data
Stephenson, A P.
Advanced machine code techniques for the BBC micrcn
1. BBC Microcomputer Programming
I. Title II. Stephenson, D. J.
00 1.64'25 QA76.8.B3/
ISBN 0 246 12227 7
Typeset by V & M Graphics Ltd, Aylesbury, Bucks
Printed and bound in Great Britain by
Mackays of Chatham, Kent
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the publishers.
DIGITALLY REMASTERED ON RISC OS COMPUTERS, FEBURARY 2012.