TITAN Machine-Code Programming Manual

Here is the TITAN Machine-Code Programming Manual (Third Edition, November 1969; Amended 5.7.71), converted to HTML through scanning, some OCR (where the text was of sufficient quality) and some retyping (in other places). The individual pages of the manual bear various dates from 16.5.66 to 5.7.71 (in the British dd.mm.yy style); the page divisions, numbers and dates are indicated in HTML comments, but for simplicity not in the main text.

The manual has the following chapters, which will eventually be available here (until they are all available, internal links to other chapters may be broken):

• Front page, full table of contents and Chapter 1: Introduction
• Chapter 2: The Titan Computer
• Chapter 3: B orders and Test Orders
• Chapter 4: The Accumulator Orders
• Chapter 5: Extracode Instructions
• Chapter 6: Input and Output
• Chapter 7: Backing Store Devices
• Chapter 8: Intermediate Input Language (IIT)
• Chapter 9: Faults, Monitor and Trapping
• Chapter 10: The Titan Operating System
• Chapter 11: General Organisational Extracodes
• Appendix A: Internal code tables
• Appendix B: Summary of extracodes
• Appendix C: Notation
• Appendix D: System fault numbers
• Appendix E: Basic instruction codes
• Appendix F: System commands

The TITAN documentation here is copyright © University of Cambridge Computer Laboratory, and is distributed by permission. Thanks to Barry Landy, Roger Needham and David Hartley for giving permission to distribute these documents. Thanks to Barry Landy for lending me the paper documents from which this documentation was scanned. Any typographical errors probably arose in the course of OCR.

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