Chilton::ACL::Atlas Autocode Reference Manual

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Early history □ Minutes of committee meetings □ Progress reports □ Other reports □ News cuttings □ In-house publications □ Committee papers □ Personal recollections □ ACL publications □ Books □ Early Atlas publications □ FR80 reports □ Atlas manuals □ ICL1906A manuals □ Other manuals

Algol Language □ Algol Library □ Atlas Autocode □ ABL (Atlas Basic Language) □ ABL exercises □ Atlas Supervisor □ Atlas 1 Extracodes □ Atlas 1 Operators □ Atlas 1 Preparing a program □ Atlas 1 Supervisor and Fixed Store routines □ Atlas 1 Supervisor Vol 1 □ Atlas 1 Supervisor Vol 2 □ Atlas 1 Supervisor Vol 3 □ Atlas 1 Features: Early Ferranti paper □ Atlas Testing □ Input/Output for Atlas 1 and 2 □ Atlas Computer: Ferranti Overview □ Atlas Bible □ Atlas 2 Supervisor

Further reading □ Preface □ Contents □ 1 Introduction □ 2 The basic language □ 3 Storage and block structure of programs □ 4 Routines □ 5 Data I/O □ 6 Monitor printing and fault diagnosis □ 7 Presentation of complete programs □ 8 Complex arithmetic □ 9 Store Mapping □ 10 The use of machine instructions □ 11 Permanent routines □ Appendices and indices □ A1 Phrase structure notation □ A2 Standard functions and permanent routines □ A3 Delimiters □ A4 Monitored faults □ A5 Numerical equivalents of symbols

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⟶ ACL ⟶ Literature ⟶ Atlas manuals ⟶ Atlas Autocode :: ATLAS AUTOCODE REFERENCE MANUAL

⟶ ACL ⟶ Literature ⟶ Atlas manuals ⟶ Atlas Autocode :: ATLAS AUTOCODE REFERENCE MANUAL

ACL ACD C&A INF CCD CISD Archives

Applications Associates Literature Society Technology Software revisited

Early history □ Minutes of committee meetings □ Progress reports □ Other reports □ News cuttings □ In-house publications □ Committee papers □ Personal recollections □ ACL publications □ Books □ Early Atlas publications □ FR80 reports □ Atlas manuals □ ICL1906A manuals □ Other manuals

Algol Language □ Algol Library □ Atlas Autocode □ ABL (Atlas Basic Language) □ ABL exercises □ Atlas Supervisor □ Atlas 1 Extracodes □ Atlas 1 Operators □ Atlas 1 Preparing a program □ Atlas 1 Supervisor and Fixed Store routines □ Atlas 1 Supervisor Vol 1 □ Atlas 1 Supervisor Vol 2 □ Atlas 1 Supervisor Vol 3 □ Atlas 1 Features: Early Ferranti paper □ Atlas Testing □ Input/Output for Atlas 1 and 2 □ Atlas Computer: Ferranti Overview □ Atlas Bible □ Atlas 2 Supervisor

Preface

Preface

This manual is a reference manual which describes the Atlas Autocode Compiler currently available (1/3/65) at Manchester University. It is not a teaching manual though we have tried to make it fairly readable. Further compilers may in the future become available both on Atlas and other machines and it is expected that they will be described with reference to this manual.

We would like to thank Mr. G. Riding for his many valuable comments and suggestions and Miss Christina O'Brien who has typed and re-typed the manuscript.

R.A. Brooker
J.S. Rohl.
1st March 1965

The copy of the manual used to create these pages originally belonged to N. K. Ganguly.

Like the Atlas Algol dialect, Atlas Autocode programs were normally produced using a Flexowriter with backspace capabilities allowing some characters to be produced using one or two overstrikes. For example:

≤ ≥ ≠ ≡ ;

Where suitable Unicode characters can be found to replace these, the Unicode characters have been used. Where no Unicode character is available, striking though or underlining is used to create a similar character.

The original document made frequent references to page numbers which are inappropriate to a web document. These have been replaced where suitable alternatives are available.

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