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Abstraction and extensibility in digital logic simulation software

Published: 04 March 2009 Publication History

Abstract

Students of Computer Organization should be able to "learn by doing" at all levels of computer design. Digital logic circuitry is frequently taught using simulation software, however such platforms are often limited to exposing only a narrow range of design levels. This paper describes how, in the new multilevel simulation system DLSim 3, we are able to incorporate abstraction and extensibility to present the many levels of complex circuit designs in a single environment: from low level combinational and sequential circuits, through models of complete CPUs. Among other features, DLSim 3 is able to accomplish this by providing three different types of circuit abstraction: cards, chips, and plug-ins. Using DLSim 3, students recognize the uniformity of system structure, as well as the principles of abstraction that link the various levels of design.

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C. Burch. Logisim: A graphical system for logic circuit design and simulation. J. Educ. Resour. Comput., 2(1):5--16, 2002.
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C. Burch. Logisim 2.1.6. http://ozark.hendrix.edu/~burch/logisim, 2007.
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J. L. Donaldson, R. M. Salter, A. Singhal, J. Kramer-Miller, and S. Egorov. Exploring CPU design with DLSim plug-ins. SIGCSE'09 Poster.
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S. Egorov, J. L. Donaldson, and R. M. Salter. Programmable logic arrays: a DLSim implementation. Oberlin College Summer Research Institute, 2008.
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M. J. Jipping, K. Ludewig, S. Henry, and L. Tableman. How to integrate FPGAs into a computer organization course. In SIGCSE'06: Proceedings of the 37th SIGCSE Technical Symposium on Computer Science Education, pages 234--238. ACM Special Interest Group on Computer Science Education, March 2006.
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J. Kramer-Miller, J. L. Donaldson, and R. M. Salter. Mips calculator: an integer calculator built with DLSim 3. Oberlin College Summer Research Institute, 2008.
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A. Masson. Logicsim. http://wuarchive.wustl.edu/edu/math/software/mac/LogicSim/, 1996.
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D. A. Poplawski. A pedagogically targeted logic design and simulation tool. In WCAE'07, Proceedings of the 2007 workshop on Computer architecture education, pages 1--7, June 2007.
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R. M. Salter and J. L. Donaldson. Using DLSim 3: a scalable, extensible, multi-level logic simulator. In ITiCSE'08: Proceedings of 13th Annual Conference on Innovation and Technology in Computer Science Education, page 315. ACM Special Interest Group on Computer Science Education, June - July 2008.
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Cited By

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  • (2009)Illustrating CPU design concepts with DLSim 3Proceedings of the 39th IEEE international conference on Frontiers in education conference10.5555/1733663.1733920(1098-1103)Online publication date: 18-Oct-2009
  • (2009)Illustrating CPU design concepts with DLSim 32009 39th IEEE Frontiers in Education Conference10.1109/FIE.2009.5350467(1-6)Online publication date: Oct-2009
  • (2017)Multiple Levels of Abstraction in Algorithmic Problem SolvingProceedings of the 2017 ACM SIGCSE Technical Symposium on Computer Science Education10.1145/3017680.3017801(237-242)Online publication date: 8-Mar-2017
  • Show More Cited By

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Information

Published In

cover image ACM SIGCSE Bulletin
ACM SIGCSE Bulletin  Volume 41, Issue 1
SIGCSE '09
March 2009
553 pages
ISSN:0097-8418
DOI:10.1145/1539024
Issue’s Table of Contents
  • cover image ACM Conferences
    SIGCSE '09: Proceedings of the 40th ACM technical symposium on Computer science education
    March 2009
    612 pages
    ISBN:9781605581835
    DOI:10.1145/1508865
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 04 March 2009
Published in SIGCSE Volume 41, Issue 1

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Author Tags

  1. abstraction
  2. logic design
  3. simulation

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Cited By

View all
  • (2009)Illustrating CPU design concepts with DLSim 3Proceedings of the 39th IEEE international conference on Frontiers in education conference10.5555/1733663.1733920(1098-1103)Online publication date: 18-Oct-2009
  • (2009)Illustrating CPU design concepts with DLSim 32009 39th IEEE Frontiers in Education Conference10.1109/FIE.2009.5350467(1-6)Online publication date: Oct-2009
  • (2017)Multiple Levels of Abstraction in Algorithmic Problem SolvingProceedings of the 2017 ACM SIGCSE Technical Symposium on Computer Science Education10.1145/3017680.3017801(237-242)Online publication date: 8-Mar-2017
  • (2012)A Module for Automatic Assessment and Verification of Students' Work in Digital Logic DesignProceedings of the 2012 IEEE 19th International Conference and Workshops on Engineering of Computer-Based Systems10.1109/ECBS.2012.7(275-282)Online publication date: 11-Apr-2012

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