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"Vedic mathematics" is the ancient methodology of mathematics which has a unique technique of calculations based on 16 "sutras" (formulae). A Vedic squarer design (ASIC) using such ancient mathematics is presented in this paper. By employing the Vedic mathematics, an (N × N) bit squarer implementation was transformed into just one small squarer (bit length ≪ N) and one adder which reduces the handling of the partial products significantly, owing to high speed operation. Propagation delay and dynamic power consumption of a squarer were minimized significantly through the reduction of partial products. The functionality of these circuits was checked and performance parameters like propagation delay and dynamic power consumption were calculated by spice spectre using 90-nm CMOS technology. The propagation delay of the proposed 64-bit squarer was ~ 16 ns and consumed ~ 6.79 mW power for a layout area of ~ 5.39 mm2. By combining Boolean logic with ancient Vedic mathematics, substantial amount of partial products were eliminated that resulted in ~ 12% speed improvement (propagation delay) and ~ 22% reduction in power compared with the mostly used Vedic multiplier (Nikhilam Navatascaramam Dasatah) architecture.
The ancient Vedic mathematics is well known for quicker handy multiplications but its recognition as an integrated circuit core against existing hardware multipliers is not established. As optimized hardware implementation of binary multiplier is one of the prominent unsolved problems in computer architecture, this paper proposes efficient Urdhava Tiryakbhyam Vedic multiplier architecture and compares it with the set of hierarchical multiplication algorithms which generate multiplication result in a single clock cycle. Two innovative algorithms are proposed here, one with a compact structure and another for faster execution. Also, its optimized transistor level layout is designed and implemented. To maintain homogeneity for comparison, all the algorithms are programmed on a common HDL language platform and analyzed with the same tool and technology. Final results indicate that the proposed architecture delivers 15.5% less power delay product (PDP) compared to closest competitor algorithm.