Vedic

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4 Bit vedic multiplier different archotectures

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Vedic

  1. 1. VHDL Code of Vedic Multiplier with Minimum Delay Architecture Presented By Vaibhav Jindal Gautam Buddha University 1
  2. 2. Contents  Introduction  Vedic Method 1 (Urdhva Tiryakbhyam)  Architecture based on Urdhva Tiryakbhyam  Vedic Method 2 (Urdhva Tiryakbhyam)  Architecture based on Urdhva Tiryakbhyam  Delay Calculation of Architecture  Conclusion  References 2
  3. 3. Introduction  Vedic mathematics is the name given to the ancient system of mathematics, which was rediscovered, from the Vedas between 1911 and 1918 by Sri Bharati Krishna Tirthaji.  The Vedic multiplication has 16 sutras.  Urdhva-tiryakbhyam -Vertically and crosswise. 3
  4. 4. Introduction Pdsum= PdXOR & Pdcarry=PdAND Pdsum=2*Pdxor & Pdcarry=PdXOR+PdAND+PdOR 4
  5. 5. Vedic Method 1 (Urdhva Tiryakbhyam) Method -1 of 4-bit Vedic Multiplier 5
  6. 6. Architecture based on Urdhva Tiryakbhyam Architecture 1 for Method1 6
  7. 7. Architecture(Hardware Reduce) based on Urdhva Tiryakbhyam Architecture 2 for Method1 7
  8. 8. Vedic Method 2 (Urdhva Tiryakbhyam) Method -2 of 4-bit Vedic Multiplier 8
  9. 9. Architecture based on Urdhva Tiryakbhyam Architecture 1 for Method 2 9
  10. 10. Architecture(Hardware Reduce) based on Urdhva Tiryakbhyam Architecture 2 for Method 2 10
  11. 11. Delay Calculation of Architectures Delay Manually calculated Slice Occupied Total Delay (ns) Method1 Arch.1 PdAND+11xPdHA +5xPdOR 20 14.310 Method1 Arch.2 PdAND+10xPdHA +4xPdOR 19 13.155 Method2 Arch.1 PdAND+47xPdHA +15xPdOR 20 17.829 Method2 Arch.2 PdAND+23xPdHA +6xPdOR 19 15.779 11 Delay calculation on Xilinx (Spartan 3E) Device XC3S500E
  12. 12. Delay Calculation of Architecture 9.418 8.714 11.530 10.122 4.892 4.441 6.362 5.657 14.310 13.155 17.892 15.779 Method1 Arch.1 Method1 Arch.2 Method2 Arch.1 Method2 Arch.2 Logic Delay Root Delay Total Delay 12
  13. 13. Conclusion  The architecture of metho1 with reduce hardware has the less delay than others architecture.  So, it will enhancing the ability of process or the time of process will be as low as possible. 13
  14. 14. References  Kabiraj Sethi and Rutuparna Panda, “An Improvedsquaring Circuit For Binary Numbers”, International Journal of Advanced Computer Science and Applications, Vol. 3, 2012.  Purushottam D. Chidgupkar and Mangesh T. Karad, “The Implementation of Vedic Algorithms in Digital Signal Processing”, 7th UICEE Annual Conference on Engineering Education,Global J. of Engng. Educ., Vol.8, 2012.  PoornimaM,shivraj Kumar Patil, Shivkumar, Shridhar K P and Sanjay H, “Implementation of Multiplier using Vedic Algorithm”, International Journal of Innovative Technology and Exploring Engineering, Vol.2, 2013.  Premananda B.S., Samarth S. Pai, Shashank B.,Shashank S. Bhat, “Design and Implementation of 8-Bit Vedic Multiplier”, International Journal of Advanced Research in Electrical, Electronic and Instrumentation Engineering, Vol.2, 2013.  R.Shridevi, Anirudh Palakurthi, Akhila Sadhula, Hafsa Mahreen, “Design of a High Speed Multiplier (Ancient Vedic Mathematics Approach) ” International Journal of Engineering Research, Vol.2, 2013. 14
  15. 15. Thanks’ Questions ? 15

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