- Title Pages
- Epigraph
- Foreword
- Acknowledgements
- List of Photographs
- Contributors
- Introduction
- 1 The National Physical Laboratory
- 2 The creation of the NPL Mathematics Division
- 3 The origins and development of the ACE project
- 4 The Pilot ACE at the National Physical Laboratory<sup>1</sup>
- 5 Turing and the computer
- 6 The ACE and the shaping of British computing
- 7 From Turing machine to ‘electronic brain’
- 8 Computer architecture and the ACE computers
- 9 The Pilot ACE instruction format
- 10 Programming the Pilot ACE
- 11 The Pilot ACE: from concept to reality
- 12 Applications of the Pilot ACE and the DEUCE
- 13 The ACE Test Assembly, the Pilot ACE, the Big ACE, and the Bendix G15
- 14 The DEUCE—a user's view
- 15 <i>The ACE Simulator and the Cybernetic Model</i>
- 16 The Pilot Model and the Big ACE on the web
- 17 How valves work
- 18 Recollections of early vacuum tube circuits
- 19 Circuit design of the Pilot ACE and the Big ACE
- 20 Proposed electronic calculator (1945)
- 21 Notes on memory (1945)
- 22 The Turing–Wilkinson lecture series (1946–7)
- 23 The state of the art in electronic digital computing in Britain and the United States (1947)
- Index
The Pilot ACE instruction format
The Pilot ACE instruction format
- Chapter:
- (p.209) 9 The Pilot ACE instruction format
- Source:
- Alan Turing's Automatic Computing Engine
- Author(s):
Henry John Norton
- Publisher:
- Oxford University Press
This chapter begins with the author's recollections about Alan M. Turing while working at the National Physical Laboratory. It then discusses the Pilot ACE Instruction Set Architecture (ISA). The ISA is an important abstraction for the interface between the hardware and the low level software. It standardizes instructions, machine language bit patterns, among other things. It allows for the use of different implementations of the same architecture on different machines.
Keywords: Alan M. Turing, Pilot ACE, Instruction Set Architecture, computing
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- Title Pages
- Epigraph
- Foreword
- Acknowledgements
- List of Photographs
- Contributors
- Introduction
- 1 The National Physical Laboratory
- 2 The creation of the NPL Mathematics Division
- 3 The origins and development of the ACE project
- 4 The Pilot ACE at the National Physical Laboratory<sup>1</sup>
- 5 Turing and the computer
- 6 The ACE and the shaping of British computing
- 7 From Turing machine to ‘electronic brain’
- 8 Computer architecture and the ACE computers
- 9 The Pilot ACE instruction format
- 10 Programming the Pilot ACE
- 11 The Pilot ACE: from concept to reality
- 12 Applications of the Pilot ACE and the DEUCE
- 13 The ACE Test Assembly, the Pilot ACE, the Big ACE, and the Bendix G15
- 14 The DEUCE—a user's view
- 15 <i>The ACE Simulator and the Cybernetic Model</i>
- 16 The Pilot Model and the Big ACE on the web
- 17 How valves work
- 18 Recollections of early vacuum tube circuits
- 19 Circuit design of the Pilot ACE and the Big ACE
- 20 Proposed electronic calculator (1945)
- 21 Notes on memory (1945)
- 22 The Turing–Wilkinson lecture series (1946–7)
- 23 The state of the art in electronic digital computing in Britain and the United States (1947)
- Index