Skip to main content

Abstract

The 32 bit microprocessor GMICRO/1OO is based on the TRON architecture specification. The chip will be used in a small system that does not require a memory management function. The GMICRO/1OO supports variable length bit field instructions in full option so that the chip can handle bitmap operation at high speed. The chip has a 5-stage pipeline scheme. A dynamic branch prediction mechanism was chosen in order to reduce the performance degradiation caused by branch instructions. The effect of dynamic branch prediction was evaluated by two bench mark tests. The results of the bench mark showed improvements of 5 to 10 percent with the branch prediction scheme.

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

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. K. Sakamura: “Architecture of VLSI CPU in the TRON Project”, 2nd TRON Project Symposium, TRON Association, March 1987.

    Google Scholar 

  2. K. Sakamura: “Architecture of the TRON VLSI CPU”,IEEE Micro April 1987, pp.17–31

    Google Scholar 

  3. T. Enomoto: “A 32 bit microprocessor based on TRON specification”, 2nd TRON Symposium, TRON Association, March 1987.

    Google Scholar 

  4. T. Yoshida, etal.:“Branch prediction in a pipelined microprocessor”, WGMIC, Information Processing Soc., March 1987 (in Japanese)

    Google Scholar 

  5. J. K. F. Lee, etal.:“Branch Prediction Strategies and Branch Target Buffer design”, IEEE Computer, Vol.17, No.1, 1984, pp. 6–22.

    Article  Google Scholar 

  6. J. A. Lukes,“HP Precision Architecture Performance Analysis”, HP Journal, August 1986, pp. 30–39.

    Google Scholar 

  7. J. Gilbreath, etal. “Eratosthenes Revisited Once More through the Sieve”, BYTE, January 1983, pp. 283–326.

    Google Scholar 

  8. R. P. Weicker, “Dhrystone: A Synthetic System Programming Benchmark”, Communications of the ACM, Vol. 27, No. 10, October 1984, pp. 1013–1030.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1987 Springer-Verlag Tokyo

About this chapter

Cite this chapter

Tomisawa, O., Yoshida, T., Matsuo, M., Shimizu, T., Enomoto, T. (1987). Design Considerations of the Gmicro/100. In: Sakamura, K. (eds) TRON Project 1987 Open-Architecture Computer Systems. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68069-7_19

Download citation

  • DOI: https://doi.org/10.1007/978-4-431-68069-7_19

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68071-0

  • Online ISBN: 978-4-431-68069-7

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics