A simple way to near minimization of microprogram control memory | International Journal of Parallel Programming Skip to main content
Log in

A simple way to near minimization of microprogram control memory

  • Published:
International Journal of Computer & Information Sciences Aims and scope Submit manuscript

    We’re sorry, something doesn't seem to be working properly.

    Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

Abstract

Minimization of control memory bit dimension constitutes a major problem in the synthesis of a microprogrammed digital computer. This paper investigates the problem in both the cases of static and dynamic microprogramming, i.e., the problems of ROM, as well as WCS minimization. It develops certain useful results and pre-estimates about the possible minimal cost of implementation and finally describes a simple reduction methodology to pick-up one of the near minimal or engineering solutions with much less computational labor and, if necessary, the true minimal solution with some extra computation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
¥17,985 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price includes VAT (Japan)

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. S. J. Schwartz, “An Algorithm for Minimizing Read Only Memories for Machine Control,”Proceedings of 10th Ann. IEEE Symp. Switching and Automata Theory, 28–33 (1968).

  2. A. Graselli and U. Montanari, “On the Minimization of Read-Only Memories in Microprogrammed Digital Computers,”IEEE Trans. Comput.,C19:111–114 (November 1970).

    Google Scholar 

  3. S. R. Das, D. K. Banerjee, and A. K. Chattopadhyay, “On Control Memory Minimization in Microprogrammed Digital Computers,”IEEE Trans. Comput.,C22:845–848 (September 1973).

    Google Scholar 

  4. T. Agarwala, “Microprogram Optimization: A Survey,”IEEE Trans. Comput.,C25:962–973 (October 1976).

    Google Scholar 

  5. C. Montangero, “An Approach to the Optimal Specification of Read-Only Memories in Microprogrammed Digital Computers,”IEEE Trans. Comput.,C23:375–384 (April 1974).

    Google Scholar 

  6. M. Tsuchiya and M. J. Gonzalez, “Toward Optimization of Horizontal Microprograms,”IEEE Trans. Comput.,C25:992–999 (October 1976).

    Google Scholar 

  7. P. K. Srimani, B. P. Sinha, and A. K. Choudhury, “On Certain Investigations on Control Memory Minimization in Microprogrammed Digital Computers,”J. Inst. Electron. Telecomm. Engrs.,23:542–548 (September 1977).

    Google Scholar 

  8. S. R. Das, Z. Chen, and C. L. Sheng, “An Approach to Microprogram Optimisation Through Bit Dimension Reduction in a Given Control Store Specification,”J. Comp. and Elect. Eng.,6:93–97 (February 1979).

    Google Scholar 

  9. L. W. Jackson and S. Dasgupta, “Identification of Parallel Microoperations,”Inform. Proc. Lett.,2:180–184 (1974).

    Google Scholar 

  10. S. Dasgupta and J. Tartar, “On the Minimization of Control Memories,”Inform. Proc. Lett.,3:71–74 (1975).

    Google Scholar 

  11. E. J. McCluskey, “Minimization of Boolean Functions,”Bell Sys. Tech. J.,35:1417–1444 (November 1956).

    Google Scholar 

  12. J. B. Pyne and E. J. McCluskey, “The Reduction of Redundancy in Solving Prime Implicant Tables,”IRE Trans. Electr. Comput.,EC11:473–482 (August 1962).

    Google Scholar 

  13. A. K. Chaudhury and S. R. Das, “Some Studies on Connected Cover Term Matrices of Swiching Functions,”Inter. J. Control,2:441–501 (November 1965).

    Google Scholar 

  14. S. R. Das, “An Approach for Simplifying Switching Functions by Utilizing the Cover Table Representations,”IEEE Trans. Comput.,C20:355–357 (March 1971).

    Google Scholar 

  15. S. R. Das and N. S. Khabra, “Clause Column Table Approach for Generating all the Prime Implicants of Switching Functions,”IEEE Trans. Comput.,C21:1239–1246 (November 1972).

    Google Scholar 

  16. A. V. Aho, J. E. Hopcroft, and J. D. Ullman,The Design and Analysis of Computer Algorithms (Addison-Wesley, Reading, MA, 1974).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Formerly with Informatik Kolleg, G.M.D., Bonn, West Germany and Indian Statistical Institute, Calcutta, India.

Formerly with Informatik Kolleg, G.M.D., Bonn, West Germany.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Srimani, P.K., Sinha, B.P. A simple way to near minimization of microprogram control memory. International Journal of Computer and Information Sciences 12, 47–64 (1983). https://doi.org/10.1007/BF00996803

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00996803

Key words

Navigation