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Topic: BCPL


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  BCPL - Wikipedia, the free encyclopedia
BCPL (Basic Combined Programming Language) is a computer programming language that was designed by Martin Richards of the University of Cambridge in 1966; it was originally intended for use in writing compilers for other languages.
BCPL was a response to difficulties with its predecessor CPL, created during the early 1960s; Richards created BCPL by "removing those features of the full language which make compilation difficult".
BCPL was also the initial language used in the seminal Xerox PARC Alto project, the first modern personal computer; among many other influential projects, the ground-breaking Bravo document preparation system was written in BCPL.
en.wikipedia.org /wiki/BCPL   (732 words)

  
 bcpl - BlueRider.com
BCPL is low-level, typeless and block-structured, and provides only one-dimensional arrays.
BCPL was used to implement the TRIPOS operating system, which was subsequently reincarnated as AmigaDOS.
A BCPL compiler bootstrap kit with an INTCODE interpreter in C was written by Ken Yap ken@syd.dit.csiro.au.
bcpl.bluerider.com /wordsearch/BCPL   (193 words)

  
 bcpl   (Site not responding. Last check: 2007-11-06)
BCPL (Basic Combined Programming Language) is a computer programming language, derived from CPL.
Due to difficulties, during the 1960s, BCPL was designed by Martin Richards of the University of Cambridge (1966).
BCPL, the language and its compiler, Richards, M and Whitby-Stevens, C. Cambridge University Press, 1980.
www.yourencyclopedia.net /BCPL.html   (490 words)

  
 Alan Watson on BCPL   (Site not responding. Last check: 2007-11-06)
Objects are typeless in BCPL, in as much as their type is inferred from the context in which they are used (i.e., in a redirection context an object is assumed to be an address, and in an arithmetic it is assumed to be a signed integer). ;
BCPL is similar to C in that is all arguments are passed by value, although the language tokens are much more wordy than C and is has local functions. 
I think the BCPL grammar and lexical structure is a mess, but I came to it after learning C, so I am not really in a position to give an unbiased opinion.
www.lysator.liu.se /c/alan-on-bcpl.html   (654 words)

  
 Help with the history of C language. BCPL   (Site not responding. Last check: 2007-11-06)
BCPL Text: I would like to get some information on the history of the C language, especially dates and roots.
BCPL was developed as a tapeless systems programming language, by Martin Richards.
BCPL basic data type was the machine word, and it made heavy use of pointers and address arithmetic.
www.newton.dep.anl.gov /newton/askasci/1993/compsci/CS18.HTM   (248 words)

  
 BCPL Reference Manual (1967)
BCPL has had a productive life of its own, but my interest in it is more in the basis it provided for the development of the B language and then in the history of C.
As it tells, the BCPL language definition when B was developed was just the manual recorded here, together with the compiler that Richards contemporaneously wrote for the CTSS system.
Richards's first BCPL compiler was written using the 6-bit BCD character set on CTSS, and adapted shortly thereafter to use the characters available on the IBM "golf-ball" 1050 and 2741 terminals.
cm.bell-labs.com /cm/cs/who/dmr/bcpl.html   (1373 words)

  
 Chistory
BCPL was designed by Martin Richards in the mid-1960s while he was visiting MIT, and was used during the early 1970s for several interesting projects, among them the OS6 operating system at Oxford [Stoy 72], and parts of the seminal Alto work at Xerox PARC [Thacker 79].
Finally, the B and BCPL model implied overhead in dealing with pointers: the language rules, by defining a pointer as an index in an array of words, forced pointers to be represented as word indices.
The solution constituted the crucial jump in the evolutionary chain between typeless BCPL and typed C. It eliminated the materialization of the pointer in storage, and instead caused the creation of the pointer when the array name is mentioned in an expression.
cm.bell-labs.com /cm/cs/who/dmr/chist.html   (8388 words)

  
 Disruptive Behavior Policy
It is the intent of the Library to provide its collections and services with a minimum of regulations, adopting only those which are essential to the successful operation of the Burke County Public Library.
BCPL recognizes that Library customers are in fact the owners of the Library.
BCPL staff responses to disruptive behavior patterns will be governed by the "Disruptive Behavior Procedural Manual" issued by the Library Director.
www.bcpls.org /behavior_policy.htm   (677 words)

  
 A brief(ish) description of BCPL   (Site not responding. Last check: 2007-11-06)
I first encountered BCPL when I was at Cambridge University, the home of the language and its designer, Martin Richards.
BCPL was the systems programming language of choice at Cambridge, because it generated code better than the IBM Fortran compilers while not requiring the agony of Assembler. 
BCPL implementations are available from Martin Richards, or from the old BCPL distribution.
www.lysator.liu.se /c/clive-on-bcpl.html   (2813 words)

  
 BCPL   (Site not responding. Last check: 2007-11-06)
treasurer, and the attorney general, the BCPL is the public body that oversees the state...
The BCPL is authorized by the state Constitution...
BCPL es un acrónimo inglés de Basic Combined Programming Language.
enciclopedia.cc /BCPL   (343 words)

  
 BCPL (new version)   (Site not responding. Last check: 2007-11-06)
The main changes are the use of a new BCPL compiler with some extensions including a cross-referencing facility, changes in the directory structure and the use of the environment variables BCPLROOT, BCPLPATH and BCPLHDRS (in place of CINTCODE and BCPLPATH).
BCPL is a simple typeless language that was designed in 1966 by Martin Richards and implemented for the first time at MIT in the Spring of 1967.
This machine independent interpretive implementation of BCPL is available free of charge for private and academic purposes.
www.cl.cam.ac.uk /users/mr/BCPL.html   (363 words)

  
 BCPL   (Site not responding. Last check: 2007-11-06)
BCPL (Basic Combined Programming Language) is a computer programming language that was designed by Martin Richards of the University of Cambridge (1966) as a response to difficulties with its predecessor CPL during the 1960s.
A major reason for BCPL's portability lay in the structure of its compiler.
The front end parsed the source and generated O-code for a virtual machine; the backend took the O-code and translated it into the code for the target machine.
www.yotor.com /wiki/en/bc/BCPL.htm   (470 words)

  
 gccbcpl::home   (Site not responding. Last check: 2007-11-06)
This is being done to enable the use of the new GCC high-level intermediate representations (GENERIC and GIMPLE) and the optimisation framework based on the SSA form.
The current development focus is based around validation of the BCPL grammar and the replacement of the Bison parser with a recursive-descent parser.
Technical report CSBU-2004-06 provides an overview of the history of BCPL and also details the requirements, design and implementation of the proposed front end for GCC.
gccbcpl.sourceforge.net   (354 words)

  
 BCPL - FOLDOC Definition   (Site not responding. Last check: 2007-11-06)
["BCPL - The Language and its Compiler", Martin Richards and Colin Whitby-Stevens, Cambridge U Press 1979].
The original INTCODE interpreter for BCPL is available for Amiga, Unix, MS-DOS.
We hope to hear from you again soon.
www.nightflight.com /foldoc-bin/foldoc.cgi?BCPL   (219 words)

  
 BCPL - OneLook Dictionary Search
BCPL : Free On-line Dictionary of Computing [home, info]
BCPL : Dictionary of Programming Languages [home, info]
BCPL : Pilot magazine A to Z of Aviation Jargon [home, info]
www.onelook.com /cgi-bin/cgiwrap/bware/dofind.cgi?word=BCPL   (115 words)

  
 BCPL Welcome   (Site not responding. Last check: 2007-11-06)
However, because Bethesda burials also took place in what is known as Beech Grove and lack of documentation, question has arisen to the exact location of these burials.
Undated photograph with church and white picket fence at cemetery in Arnold Hanner Photograph Collection, BCPL [Scrapbk Furnaces of Greenup Co., photo #17].
History of Poor Farm, BCPL vf, by Teresa Klaiber, 1999.
www.thebookplace.org /gen/cemeteries.html   (4875 words)

  
 BCPL Articles, Encyclopedias Main Page
Over 100,000 factory drawings and step-by-step photographs; 65,000 technical service bulletins and recalls issued by the original equipment manufacturer; wiring diagrams for easy viewing and printing; specifications and maintenance schedules and Labor Time Guide and Estimator.
These sections contain essays and directory listings that describe the historical development of religious families and give factual information about each group within those families, including, when available, rubrics for membership figures, educational facilities and periodicals.
Each essay has a listing of organizations and research centers; names addresses and contact information for periodicals, radio and television stations; and a list of suggestions for further reading.
www.bcpl.info /databases.html   (2851 words)

  
 BCPL | TutorGig.co.uk Dictionary   (Site not responding. Last check: 2007-11-06)
BCPL Basic / BBN Combined Programming Language (BBN)
It has only one data type (a machine word) which can be used as an integer, a character, a floating point number, a pointer, or almost anything else, depending on context.
A BCPL compiler bootstrap kit with an INTCODE interpreter in C was written by Ken Yap
www.tutorgig.co.uk /dict.jsp?keywords=BCPL   (388 words)

  
 Hanoi: BCPL
BCPL was designed by Martin Richards in the mid-1960s while he was visiting MIT, and was used during the early 1970s for several interesting projects, among them the OS6 operating system at Oxford, and parts of the seminal Alto work at Xerox PARC.
Dennis Ritchie's home page has a BCPL reference manual, and also a very interesting history of the C language.
// // The Towers Of Hanoi // BCPL // Copyright (C) 1998 Amit Singh.
www.kernelthread.com /hanoi/html/bpl.html   (122 words)

  
 BCPL - Waikato Linux Users Group
BCPL is a high level AssemblyLanguage, like C was originally intended to be.
Here's the big difference between C and BCPL: The only datatype in BCPL is the 32-bit machine word.
This doesn't suit the addressing schemes of many modern processors, which is probably one reason you don't see it being used any more.
www.wlug.org.nz /BCPL   (202 words)

  
 Bergen Computational Physics Laboratory - EU Research Infrastructure   (Site not responding. Last check: 2007-11-06)
Bergen Computational Physics Laboratory (BCPL) is a European Research Infrastructure at the University of Bergen, Norway, with a scientific staff working on modeling of subatomic, atomic and molecular reactions, using supercomputing facilities, including a 499.2 GigaFlop (peak capacity), 96 copper Power4 processor IBM e-server p690 Turbo Regatta as its present top facility.
BCPL assists researchers or research teams from the EU and its
The Research Infrastructure programme at BCPL has ended on 31 December 2003, as the EU is not funding the continuation of the project.
www.fi.uib.no /~bcpl   (177 words)

  
 BCPL: Library Card Eligibility   (Site not responding. Last check: 2007-11-06)
A BCPL library card entitles the member to borrow materials from any BCPL branch.
Material that BCPL does not own may be obtained from other libraries through Interlibrary Loan, but the material must be at least six (6) months old.
All BCPL card holders may take advantage of borrowing privileges at 20-plus area libraries.
www.bcpl.org /librarycard.html   (648 words)

  
 Martin Richards
BCPL, an interpretive implementation of the BCPL language and system, including many demonstration programs.
Currently only a BCPL version is available, the other implementations are under development.
An archive of old BCPL and Tripos code is available.
www.cl.cam.ac.uk /users/mr   (607 words)

  
 BCPL
["BCPL - The Language and its Compiler", Martin Richards &
The original INTCODE interpreter for BCPL is available for
A BCPL compiler bootstrap kit with an INTCODE
dictionary-x.com /BCPL.html   (252 words)

  
 BCPL - Business Continuance Planning Limited (BCPL) can help you establish business continuity and crisis management ...
BCPL - Business Continuance Planning Limited (BCPL) can help you establish business continuity and crisis management practices to strengthen your organization and provide a path towards future requirements as resources permit and 'business environments' dictate.
BCPL is a specialist consultancy that can …
Business Continuance Planning Ltd accepts no responsibility for any loss or damage resulting from the use of this information.
www.bcpl.co.nz   (173 words)

  
 BCPL.NET Internet Services
October 08, 2005 - All Baltimore County Public Library offices and libraries, including the BCPL.NET offices and Help Desk, will be closed on Columbus Day, Monday, October 10th.
All staff will be attending BCPL's annual staff meeting on that date.
Any voice mail or e-mail left for the BCPL.NET Help Desk (410-887-3297 or help@bcpl.net) or for other BCPL.NET staff while we are closed will be answered as quickly as possible when we reopen on Tuesday, October 11th.
www.bcpl.net   (528 words)

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