The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 1994
Filed:
May. 28, 1993
Applicant:
Inventors:
Beatrice Fu, Mt. View, CA (US);
Patrick P Gelsinger, Santa Clara, CA (US);
Assignee:
Intel Corporatino, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395375 ; 395800 ; 364D / ; 3642318 ; 3642624 ;
Abstract
An improved instruction decoder is described which uses parallel stages which operate in a pipeline fashion. The decoder is particularly useful in a microprocessor which has variable length instructions. The first stage decodes the OP code and register and address mode specifier fields while the second stage directs the sequencing of address calculations. The first two lines of microcode are provided by the first stage as well as a look up to microcode in the microcode memory.