1 / 18

ALU For RISC

ALU For RISC. By: Ricardo Maurosa Wilfredo Soto Félix Rivera. Electrical/Computer Engineering December 15th, 2004. Outline. Description – What is an ALU? – Operations ALU for RISC – Design – Functionality & Timing Diagrams Conclusions References. Description. What is an ALU?

thais
Download Presentation

ALU For RISC

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ALU For RISC By: Ricardo Maurosa Wilfredo Soto Félix Rivera Electrical/Computer Engineering December 15th, 2004

  2. Outline • Description • – What is an ALU? • – Operations • ALU for RISC • – Design • – Functionality & Timing Diagrams • Conclusions • References

  3. Description • What is an ALU? • ALU • – Arithmetic Logic Unit • – Devices connected in series • – AND, OR, NAND, NOT

  4. Description • Operations • – Arithmetic – ADD, ADC, SUB, NEG, INC3 • – Logic – AND, OR, NOT, SHR, SHRA, SHL, SHC • – Others – C = B

  5. ALU For RISC • Design

  6. Inside the ALU

  7. Ripple Full Adder

  8. Arithmetic Functions

  9. Logic Functions

  10. A B C

  11. C B

  12. B C A

  13. Conclusion • – Understanding the behavior and functionality of the ALU • – Components inside the ALU • – Different dataflow for operations • – 1, 2 or 3 Buses differences

  14. References • V.P. Heuring and H.F. Jordan, “ Computer Systems Design and Architecture”, Second Edition, USA, Prentice-Hall; 2004. • “Wikipedia: The Free Enciclopedia”, URL http://en.wikipedia.org/wiki/ALU • “Logic Gates”, URL http://www.kpsec.freeuk.com/gates.htm

More Related