Arithmetic processor utilizing multi-table look up to obtain...

Details Arithmetic processor utilizing multi-table look up to obtain... Arithmetic processor utilizing multi-table look up to obtain...

2008-03-18

2008-03-18

Mai, Tan V. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S500000, C708S605000

Reexamination Certificate

active

10714554

ABSTRACT:
Methods for determining the square root, reciprocal square root, or reciprocal of a number performed by a processor of a computer system. The methods produce high precision estimates without using iterative steps. In addition, the methods taught herein utilize compressed tables for the coefficient terms A, B, and C from the quadratic expression Ax2+Bx+C, thus minimizing hardware requirements.

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P. Michael Farmwald, “High Bandwidth Evaluation of Elementary Functions,” S-1 Project, Lawrence Livermore National Laboratory, pp. 139-142.

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