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Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock APPLIED VLSI.

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Presentation on theme: "Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock APPLIED VLSI."— Presentation transcript:

1 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock APPLIED VLSI DESIGN The second Design of Robert Gubitz and Bjoern Konieczek

2 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Slide 2 First Approach

3 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock New Approach Replace Ripple Look-Ahead Adder with Ripple-Carry Adder

4 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock New Approach Replace Carry Save Array Multiplier with Wallace-Tree

5 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock New Approach Rounding the Results to improve average Error

6 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Resulting Design

7 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Slide 7 Results – Synthesis First approachNew ApproachEnhancement Frequency (in MHz) 77,714113,013+45,42% N cycles 41373 ±0,00% t Op (in μs) 5,32 *10 -4 3,66091 *10 -4 -31,19% A (in No. FFs) 32992372-28,1% E Avg 0,51556330,2497012-51,57% Metric794,01432,069-95,96%

8 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Results – Back-annotated Design First approachNew ApproachEnhancement Frequency (in MHz) 77,71497,381+25,3% N cycles 41373 ±0,00% t Op (in μs) 5,32 *10 -4 4,24859 *10 -4 -20,14% A (in No. FFs) 32992416-26,77% E Avg 0,51556330,2497012-51,57% Metric794,01438,61-95,14%

9 Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock THANK YOU FOR YOUR ATTENTION

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