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Computer Architecture II: Specialized 0909.444.01/02 Fall 2001

Computer Architecture II: Specialized 0909.444.01/02 Fall 2001. Lecture 1 October 25, 2001. John L. Schmalzel Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/fall01/comparch2/. Plan. Intel P4 Quick Review: Integer Representation Sign-Magnitude

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Computer Architecture II: Specialized 0909.444.01/02 Fall 2001

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  1. Computer Architecture II: Specialized0909.444.01/02Fall 2001 Lecture 1October 25, 2001 John L. Schmalzel Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/fall01/comparch2/

  2. Plan • Intel P4 • Quick Review: Integer Representation • Sign-Magnitude • Twos Complement • Quick Review: Integer Arithmetic • Floating Point Representation • IEEE 754 Standard • Floating Point Arithmetic • IEEE 754 implementation

  3. Pentium® 4 Processor Pentium® III Processor Celeron™ Processor Mobile Processors A guide to help you make smart technology decisions. Digital Audio Players Home Networking PC Cameras PC Toys Wired Peripherals Wireless Peripherals PCs, products and ideas for the home Let us recommend the right PC for you Find out who sells Intel® processor-based PCs Shop Intel(SM) Store PC Buyer's Guide Vendor Fast Find Home Computing Product Selector Intel P4 http://www.intel.com/home/pentium4/

  4. ALU Inputs and Outputs

  5. Sign-Magnitude Twos Complement Quick Review:Integer Representation

  6. Twos Complement: Range -2n-1 to 2n-1-1

  7. Geometric Depiction of Twos Complement Integers

  8. Hardware for Addition and Subtraction

  9. Biased Exponent Significand/Mantissa/Fraction Sign bit Floating Point: Example 8 bits 23 bits Sign of Mantissa

  10. Floating Point:Expressible Numbers

  11. IEEE 754 Standard

  12. IEEE 754 Numbers and NaNs

  13. References • William Stallings, Computer Organization and Architecture, 5th Edition, Prentice-Hall, 2000. • ftp://ftp.prenhall.com/pub/esm/computer_science.s-041/stallings/Slides/COA5e-Slides/ • IA-32 Intel Architecture Software Developer’s Manual Volume 1: Basic Architecture • http://www.intel.com/home/pentium4/

  14. Summary

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