A pipelined 50-MHz CMOS 64-bit floating-point arithmetic processor

Autor: V. Peng, W.J. Bowhill, V.K. Maheshwari, S. Samudrala, P.E. Gronowski, E.M. Copper, B.J. Benschneider, M.N. Gavrielov, J.D. Pickholtz
Rok vydání: 1989
Předmět:
Zdroj: IEEE Journal of Solid-State Circuits. 24:1317-1323
ISSN: 0018-9200
DOI: 10.1109/jssc.1989.572606
Popis: A 135K transistor, uniformly pipelined 50-MHz CMOS 64-bit floating-point arithmetic processor chip is described. The execution unit is capable of sustaining pipelined performance of one 32-bit or 64-bit result every 20 ns for all operations except double-precision multiply (40 ns) and divide. The chip employs an exponent difference prediction scheme and a unified leading-one and sticky-bit computation logic for the addition and subtraction operations. A hardware multiplier using a radix-8 modified Booth algorithm and a divider using a radix-2 SRT algorithm are employed. >
Databáze: OpenAIRE