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Inside Commodore DOS

Richard Immers and Gerald G. Neufeld
Diane M. Corralejo (illustrator)

second print In English
ISBN: 0-8359-3091-2 (Fennica) (HelMet) (Kirjastot.fi) (Library of Congress)
Publisher: Reston Publishing Company, Inc.
1984
This book is available electronically at http://www.devili.iki.fi/pub/Commodore/docs/books/Inside_Commodore_DOS_OCR.pdf

Table of Contents
 
Chapter 1 - INTRODUCTION 11
A Brief Word About the Programs11
How to Type in the Programs12
 
Chapter 2 - USING THE 1541'S DOS 15
The Purpose of DOS15
Communicating with the 154115
The Command Channel16
Using the Command Channel17
Diskette Housekeeping20
 
Chapter 3 - DISKETTE FORMATTING 29
Layout of Tracks and Sectors29
Layout of a Sector31
The Header Block32
The Data Block33
 
Chapter 4 - DISKETTE ORGANIZATION 35
Information Management35
The Directory You See35
The Block Availability Map36
The Directory Entries40
Program File Storage48
Sequential File Storage53
Relative File Storage56
User File Storage69
Deleted File Storage69
Locked Files70
 
Chapter 5 - DIRECT ACCESS PROGRAMMING 71
Introduction to Direct-Access Programming71
Beginning Direct-Access Programming71
Block-Read Command73
Buffer-Pointer Command75
Block-Write Command77
Memory-Read Command81
Memory-Write Command85
Block-Allocate Command89
Block-Free Command94
Memory-Execute Command96
Block Execute Command97
Direct-Access Entomology98



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This page has been created by Sami Rautiainen.
Read the small print. Last updated Feb 17, 2006