Coordinate Rotation-Based Design Methodology for Square Root and Division Computation

Mopuri, Suresh; Bhardwaj, Swati; Acharyya, Amit

doi:10.1109/tcsii.2018.2878599

Cited by 14 publications

(2 citation statements)

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“…An inverter is used to calculate ∼ (𝑦 𝑖 2 −𝑖 ) after the shifter. As illustrated in Equation (8), the values of y_ad and tc are both determined by 𝑑 𝑖 . In rotation mode, the value of 𝑑 𝑖 depends on the sign of 𝑧 𝑖 .…”

Section: (A) (B) (C)mentioning

confidence: 99%

“…The CORDIC implementation uses only simple adders and shifters. Because of this advantage, the CORDIC algorithm is suitable for implementing complex functions in VLSI circuit designs [1][2][3][4][5][6][7][8][9][10]. The CORDIC algorithm was first proposed in 1959 by E. Volder for computing trigonometric functions, multiplication and division [11,12].…”

Section: Introductionmentioning

confidence: 99%

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An optimized hardware implementation of the CORDIC algorithm

Lyu

Wang

et al. 2022

IEICE Electron. Express

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In this paper, we propose a software-based simulator and an optimized hardware implementation of the CORDIC algorithm. The number of iterations and the bit width are selected by their relationship calculated by the simulator to satisfy precision requirement. In the proposed hardware implementation, the addition and subtraction operations share the hardware resources. The two's complement is calculated in two steps: inverting and adding one. The adding one operation is integrated in the addition component of the iteration. In addition, a 3:2 compressor is used to reduce the number of adders, and a carry look-ahead adder is used to reduce the critical path. The synthesized results show that when compared with state-of-the-art designs, our method reduces the area by 53.79% and the delay by 58.97% while maintaining the same precision.

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Section: (A) (B) (C)mentioning

confidence: 99%