AffiliationDepartment of Electrical and Computer engineering, Shahid Beheshti University, G.C., Tehran, Tehran 1983963113, Iran
Faculty of Department of Computer engineering, University of Isfahan, Isfahan, Isfahan 8174673440, Iran
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DescriptionMultipliers are used in most arithmetic computing systems such as 3D graphics, signal processing, and etc. It is inherently a slow operation as a large number of partial products are added to produce the result. There has been much work done on designing multipliers -. In first stage, Multiplication is implemented by accumulation of partial products, each of which is conceptually produced via multiplying the whole multi-digit multiplicand by a weighted digit of multiplier. To compute partial products, most of the approaches employ the Modified Booth Encoding (MBE) approach -, , for the first step because of its ability to cut the number of partial products rows in half. In next step the partial products are reduced to a row of sums and a row of caries which is called reduction stage.
AbstractMultiplication is one of the major bottlenecks in most digital computing and signal processing systems, which depends on the word size to be executed. This paper presents three deferent designs for three-operand 4-bit multiplier for positive integer multiplication, and compares them in regard to timing, dynamic power, and area with classical method of multiplication performed on today architects. The three-operand 4-bit multipliers structure introduced, serves as a building block for three-operand multipliers in general
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