Work

Division with speculation of quotient digits

Year: 2002

Type: conference-paper

Abstract: The speed of SRT-type dividers is mainly determined by the complexity of the quotient-digit selection, so that implementations are limited to low-radix stages. A scheme is presented in which the quotient-digit is speculated and, when this speculation is incorrect, a rollback or a partial advance is performed. This results in a division operation with a shorter cycle time and a variable number of cycles. Several designs have been realized, and a radix-64 implementation that is 30% faster than the fastest conventional implementation (radix-8) at an increase of about 45% in area per quotient bit has been obtained. A radix-16 implementation that is about 10% faster than the radix-8 conventional one, with the additional advantage of requiring about 25% less area per quotient bit, is also shown.>

Source: IEEE Symposium on Computer Arithmetic (ARITH)

DOI: 10.1109/arith.1993.378105

Authors: J. Cortadella, T. Lang

Institutions: Universitat Politècnica de Catalunya, University of California, Irvine

Language: English

Topic: Numerical Methods and Algorithms

Subfield: Computational Theory and Mathematics

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2139919854

FWCI: 0.945

Cites: 8

Cited by: 8

Related to: 10