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- .\" @(#)puman0.n 6.3 (Berkeley) 4/17/91
- .\"
- .so tmac.p
- .EH 'PS1:4-%''Berkeley Pascal User\'s Manual'
- .OH 'Berkeley Pascal User\'s Manual''PS1:4-%'
- .TL
- Berkeley Pascal User's Manual
- .br
- Version 3.1 \- April 1986
- .AU
- William N. Joy\(dd, Susan L. Graham, Charles B. Haley\(dd,
- Marshall Kirk McKusick, and Peter B. Kessler\(dd
- .AI
- Computer Science Division
- .if n Department of Electrical Engineering
- .if n and Computer Science
- .if t Department of Electrical Engineering and Computer Science
- University of California, Berkeley
- Berkeley, California 94720
- ...AI
- ...MH
- .AB
- .FS
- Copyright 1977, 1979, 1980, 1983
- W. N. Joy, S. L. Graham, C. B. Haley, M. K. McKusick, P. B. Kessler
- .FE
- .FS
- \(ddAuthor's current addresses:
- William Joy: Sun Microsystems, 2550 Garcia Ave., Mountain View, CA 94043;
- Charles Haley: S & B Associates, 1110 Centennial Ave., Piscataway, NJ 08854;
- Peter Kessler: Xerox Research Park, Palo Alto, CA
- .FE
- .PP
- Berkeley
- Pascal
- is designed for interactive instructional use
- and runs on the \s-2PDP\s0/11 and \s-2VAX\s0/11 computers.
- Interpretive code is produced,
- providing fast translation at the expense of slower execution speed.
- There is also a fully compatible compiler for the \s-2VAX\s0/11.
- An execution profiler and
- Wirth's cross reference program are also
- available with the system.
- .PP
- The system supports full Pascal.
- The language accepted is
- `standard' Pascal,
- and a small number of extensions.
- There is an option to suppress the extensions.
- The extensions include a separate compilation facility
- and the ability to link to object modules
- produced from other source languages.
- .PP
- The
- .UM
- gives a list of sources relating to the
- .UX
- system, the Pascal language, and the
- .UP
- system.
- Basic usage examples are provided for the Pascal components
- .PI ,
- .X ,
- .IX ,
- .PC ,
- and
- .XP .
- Errors commonly encountered in these programs are discussed.
- Details are given of special considerations due to the
- interactive implementation.
- A number of examples are provided including many dealing with
- input/output. An appendix supplements Wirth's
- .I "Pascal Report"
- to form the full definition of the Berkeley implementation of the language.
- .AE
- .sp
- .SH
- 'if n 'ND
- Introduction
- .PP
- The
- .UP
- .UM
- consists of five major sections and an appendix.
- In section 1 we give sources of information about
- .UX ,
- about the programming
- language Pascal, and about the
- Berkeley
- implementation of the language.
- Section 2 introduces the
- Berkeley
- implementation and provides a number of tutorial examples.
- Section 3 discusses the error diagnostics produced by the translators
- .PC
- and
- .PI ,
- and the runtime interpreter
- .X .
- Section 4 describes input/output with special attention given to features
- of the interactive implementation and to features unique to
- .UX .
- Section 5 gives details on the components of the system
- and explanation of all relevant options.
- The
- .UM
- concludes with an appendix to Wirth's
- .I "Pascal Report"
- with which it forms a precise definition of the implementation.
- .SH
- History of the implementation
- .PP
- The first
- Berkeley
- system was written by Ken Thompson in early 1976.
- The main features of the present system were implemented by
- Charles Haley and William Joy during the latter half of 1976.
- Earlier versions of this system have been in use since January, 1977.
- .PP
- The system was moved to the \s-2VAX\s0-11
- by Peter Kessler and Kirk McKusick
- with the porting of the interpreter in the spring of 1979,
- and the implementation of the compiler in the summer of 1980.
-