Method and apparatus for exact leading zero prediction for a floating-point adder
US5204825A · kind A · utility
28Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Aug 30, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Aug 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/74
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A leading zero predictor (LZP) in parallel with the full subtraction operation correctly predicts the exact number of leading zeros of a subtraction result. Once the full subtraction operation is completed, the necessary shifts may be performed immediately, without a delay to determine the presence of leading zeros, and without need for a normalization corrector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.