Advanced Spectrum Machine Language

This book is a collection of ready-made machine language routines that show how to archieve spectacular effects on the Spectrum. Most of the routines are aimed at creating visual displays that are at the frontiers of Spectrum's capabilities. The routines include features that have never been published before, such as: Full Screen Horizon ! Lets you change the colour of the border and screen at any point, and move this horizon at will ! Interrupts Driven Sprite Animation ! Animate objects with perfectly flicker-free movement by pixels ! High Resolution Colour ! Create an area on the Spectrum with eight times the normal Spectrum's Colour Resolution! Create images over all of the screen area, including all regions of the border !

This book is for programmers with some experience in machine language programming. All the routines are listed in labelled assembly language and the techniques and principles involved are fully explained. Other routines included in this book are PRINT, PLOTTING, DRAWNING and KEYBOARD SCAN. The routines are all of professional quality and do no involve any calls to the ROM. This means that the speed of your machine language programs can be dramatically increased using these routines.

Publisher: Melbourne House
Author: David Webb
Platform: ZX Spectrum

Author: David Webb
Platform: ZX Spectrum

Sinclair ZX SPECTRUM - Introduction
Steven Vickers - Robin Bradbeer
First Edition 1982

Chapter 1 - The computer and setting it up
Chapter 2 - The keyboard
Chapter 3 - Numbers, letters and the computer as a calculator
Chapter 4 - Some simple commands
Chapter 5 - Simple programming
Chapter 6 - Using the cassette recorder
Chapter 7 - Colours
Chapter 8 - Sound
Chapter 9 - Inside the case

Signed by Ruth Bramley, Company Secretary of Sinclair Research and secretary to Sir Clive Sinclair, who was responsible for editing it.

Author: David Webb
Platform: ZX Spectrum

Sinclair ZX Spectrum+ User Guide
Author Name:    Neil Ardley

Binding:    paperback
Publisher:    Dorling Kindesley/Sinclair Research 1984
ISBN Number:   863180809
Illustrated
82 pages

Author: David Webb
Platform: ZX Spectrum

"Now without any additional effort, you can overcome the limitations of BASIC and give your Spectrum real power-faster programs, more powerful graphic commands, realistic explosions, fast screen scrolling, great sounds and much more! This book will help you to develop programs of professional quality- not only will your programs look better, run faster, and be more spectacular- but you will also be able to develop them in a fraction of the time you would expect it to take. One of the most spectacular examples of extending the Spectrum is a routine that allows you to reproduce your voice and play it back from within your own programs! No knowledge of machine language is required, as all the routines have been fully written and can be directly entered into your Spectrum. The routines in this book will also allow you to renumber your BASIC programs (including all GOTOs and GOSUBs!), deletes lines, and trace BASIC programs by showing the line number of each line as it executes. David Webb also includes the most discussion of all the Spectrum's system variables yet published. If you are already familair with machine language, then this book will be an invaluable aid to writing your own programs- here are over 50 ready-made and debugged routines, with clear and detailed comment, that use the full power of the Spectrum Z80A and its special features. So whether you are a beginner Spectrum user or an experienced programmer, Supercharge your Spectrum is a book you cannot be without."

Publisher: Melbourne House
Author: David Webb
Platform: ZX Spectrum