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Adder and Multiplier Design in Quantum-Dot Cellular Automata
Quantum-dot cellular automata (QCA) is an emerging nanotechnology, with the potential for faster speed, smaller size, and lower power consumption than transistor-based technology. Quantum-dotExpand
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  • Open Access
The Sign/Logarithm Number System
A signed logarithmic number system, which is capable of representing negative as well as positive numbers is described. A number is represented in the sign/logarithm number system by a sign bit andExpand
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Truncated multiplication with correction constant [for DSP]
Multiplication is frequently required in digital signal processing. Parallel multipliers provide a high-speed method for multiplication, but require large area for VLSI implementations. In mostExpand
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Hybrid CORDIC Algorithms
Each coordinate rotation digital computer iteration selects the rotation direction by analyzing the results of the previous iteration. In this paper, we introduce two arctangent radices and show thatExpand
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  • Open Access
FFT Implementation with Fused Floating-Point Operations
This paper describes two fused floating-point operations and applies them to the implementation of fast Fourier transform (FFT) processors. The fused operations are a two-term dot product and anExpand
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A Reduced Complexity Wallace Multiplier Reduction
Wallace high-speed multipliers use full adders and half adders in their reduction phase. Half adders do not reduce the number of partial product bits. Therefore, minimizing the number of half addersExpand
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Hardware Designs for Exactly Rounded Elemantary Functions
This paper presents hardware designs that produce exactly rounded results for the functions of reciprocal, square-root, 2/sup x/, and log/sub 2/(x). These designs use polynomial approximation inExpand
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A Spanning Tree Carry Lookahead Adder
The design of the 56-b significant adder used in the Advanced Micro Devices Am29050 microprocessor is described. Originally implemented in a 1- mu m design role CMOS process, it evaluates 56-b sumsExpand
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A First Step Toward Cost Functions for Quantum-Dot Cellular Automata Designs
Quantum-dot cellular automata (QCA) is potentially a very attractive alternative to CMOS for future digital designs. Circuit designs in QCA have been extensively studied. However, how to properlyExpand
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