A Novel Ripple/Carry Lookahead Hybrid Carry Select Adder Architecture
نویسندگان
چکیده
منابع مشابه
A Novel Ripple/Carry Look Ahead Hybrid Carry Select Adder Architecture
In this paper, two general architectures of Carry Select Adder (CSA) have been introduced for high speed addition. These CSA architectures utilize the hybridized structure of Carry Lookahead Adder (CLA) and Ripple Carry Adder (RCA). In these architectures the critical path delay has been reduced by reducing the number of multiplexer stages. The proposed designs are compared with regular CSA bas...
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To perform fast addition operation, CSLA is one of the fastest adders used in many dataprocessing processors. There is further scope of improving the performance parameters of CSLA. This paper provides a comparative analysis of CSLA and reviews about various proposed schemes used to reduce the delay time, area occupied and power consumption in CSLA.
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We present an efficient addition circuit, borrowing techniques from the classical carry-lookahead arithmetic circuit. Our quantum carrylookahead (qcla) adder accepts two n-bit numbers and adds them in O(log n) depth using O(n) ancillary qubits. We present both in-place and out-of-place versions, as well as versions that add modulo 2n and modulo 2n − 1. Previously, the linear-depth ripple-carry ...
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We present the design and evaluation of a quantum carry-lookahead adder (QCLA) using measurement-based quantum computation (MBQC), called MBQCLA. QCLA was originally designed for an abstract, concurrent architecture supporting long-distance communication, but most realistic architectures heavily constrain communication distances. The quantum carry-lookahead adder is faster than a quantum ripple...
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In this paper, new hardware architecture of multiplier and accumulator (MAC) for high speed arithmetic was designed. The performance was improved by merging multiplication with accumulation and organize a hybrid type carry save adder (CSA). The proposed CSA tree uses 1's complement based radix-4 and radix-8 modified booth algorithm(MBA). The CSA propagates the carries to the least signific...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2013
ISSN: 0975-8887
DOI: 10.5120/12237-8416