Double precision approximate quotient network
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 15, 1988
Grant Date -
N/A
app pub date -
Jul 20, 1987
filing date -
Jul 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A double precision approximate quotient network determines the quotient of a 2n bit number and an n bit number where the n bit number has a value of 2.sup.n-1 -2, 2.sup.n-1 -1, 2.sup.-1, or 2.sup.n+1. Apparatus determines the 2's complement and 2 times the 2's complement of the n most significant bits of the 2n bit number. A select circuit is responsive to the value of the n bit number to select one of (a) the 2's complement of the n most significant bits of the 2n bit number, (b) 2 times the 2's complement of the n most significant bits of the 2n bit number, (c) zero, or (d) the n most significant bits of the 2n bit number. A shift register right shifts the 2n bit number one place. An adder adds the shifted 2n bit number to the number selected by the select circuit to determine the quotient. The apparatus is particularly useful in determining a double precision approximate quotient for use in double precision floating point divide and decimal divide operations.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully