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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nachtigal, M. Thapliyal, H. Ranganathan, N. |
| Copyright Year | 2011 |
| Description | Author affiliation: Department of Computer Science & Engineering, University of South Florida, Tampa, USA (Nachtigal, M.; Thapliyal, H.; Ranganathan, N.) |
| Abstract | The study of reversible circuits holds great promise for emerging technologies. Reversible circuits offer the possibility for great reductions in power consumption, and quantum computers will require logically reversible digital circuits. Many different reversible implementations of logical and arithmetic units have been proposed in the literature, but very few reversible floating-point designs exist. Floating-point operations are needed very frequently in nearly all computing disciplines, and studies have shown floating-point addition to be the most oft used floating-point operation. In this paper we present for the first time a reversible floating-point adder that closely follows the IEEE754 specification for binary floating-point arithmetic. Our design requires reversible designs of a controlled swap unit, a subtracter, an alignment unit, signed integer representation conversion units, an integer adder, a normalization unit, and a rounding unit. We analyze these major components in terms of quantum cost, garbage outputs, and constant inputs. |
| Starting Page | 451 |
| Ending Page | 456 |
| File Size | 1129705 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781457715143 |
| ISSN | 19449399 |
| e-ISBN | 9781457715167 |
| e-ISBN | 9781457715150 |
| DOI | 10.1109/NANO.2011.6144358 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-08-15 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Logic gates Adders Computer architecture Conferences Radiation detectors Computers Microprocessors quantum computing Reversible logic floating-point addition arithmetic |
| Content Type | Text |
| Resource Type | Article |
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