Parallel arithmetic-logic unit for as an element of digital sign

Details Parallel arithmetic-logic unit for as an element of digital sign Parallel arithmetic-logic unit for as an element of digital sign

1987-07-02

1989-12-19

Kemeny, Emanuel S.

Boots, shoes, and leggings

G06F 700, G06F 1500

Patent

active

048887226

ABSTRACT:
A parallel arithmetic-logic unit (PALU) controlled by a microinstruction sequencer and capable of executing conditional operations in a single pass is disclosed. The PALU generally comprises first and second registers for storing data, a comparator for continually comparing the values in the registers, and an arithmetic-logic core connected to the registers for performing arithmetic, logical and data move operations on the data in the registers. The comparator is preferably an unsigned magnitude comparator which outputs flags indicative of the relative status of the values in the registers. The flags are read by a microinstruction sequencer which then uses the flag information to determine what operation the arithmetic-logic core is to conduct. Preferably, a shifter is also provided between one of the registers and the arithmetic-logic core.

REFERENCES:
patent: 3694642 (1972-09-01), Grannis
patent: 4156927 (1979-05-01), McElroy et al.
patent: 4258429 (1981-03-01), Raymond, Jr.
patent: 4272808 (1981-06-01), Hartwig
patent: 4367524 (1983-01-01), Budde et al.
patent: 4467444 (1984-08-01), Harmon, Jr. et al.
patent: 4520347 (1985-05-01), Campbell, Jr.
patent: 4542476 (1985-09-01), Nagafuji
patent: 4608660 (1986-08-01), Hasebe
patent: 4639886 (1987-01-01), Hashimoto et al.
patent: 4649508 (1987-03-01), Kanuma
patent: 4785393 (1988-11-01), Chu et al.
Hallmark, The Master IC Cookbook, pp. 372-375, 1980, TAB Books, USA.
Larsen et al., The Bugbook II, pp. 10-25-10-28, 1974, E&L Instruments, Inc. 61 1st St., Derby, Conn. 06418.

Affiliated with

Also associated with

Rating

Parallel arithmetic-logic unit for as an element of digital sign does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Parallel arithmetic-logic unit for as an element of digital sign, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parallel arithmetic-logic unit for as an element of digital sign will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1907131