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:
May. 06, 1986
Filed:
Sep. 28, 1984
Gene M Amdahl, Saratoga, CA (US);
Hsiao-Peng S Lee, Sunnyvale, CA (US);
Amdahl Corporation, Sunnyvale, CA (US);
Abstract
A sequencing apparatus and method employing two or more control stores for use within a data processing system. Where two-way branching exists, first and second control stores each provide control words for the common control of units within a data processing system. Whenever a branch is specified, a corresponding branch address is provided in the first control store for addressing the second control store. A nonbranch address is provided for addressing the first control store. The nonbranch address and the branch address each are employed to access concurrently control words from the first and second control stores. Upon the determination of the state of the branch condition, the appropriate one of the previously accessed control words is selected without delay and without need for an additional cycle to access the control stores.