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:
Aug. 08, 1989
Filed:
May. 27, 1987
Applicant:
Inventors:
Allan J Zmyslowski, Sunnyvale, CA (US);
Robert M Maier, San Jose, CA (US);
Assignee:
Amdahl Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
An interlock of an instruction processing pipeline in a data processing system responsive to the validity of the pipeline stages within the instruction unit pipeline under microprogram control, is provided. Thus, a microprogram can provide for the release of a particular pipeline stage based on a selected characteristic of the valid signals generated by other stages of the pipeline. An interlock control signal is generated by a decode of a field in a microinstruction stored in a control store RAM or through hardwired decoding.