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:
Jan. 12, 1988
Filed:
Apr. 06, 1984
Applicant:
Inventor:
Shun Kawabe, Hadano, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
An information processing system having a high speed buffer storage and employing an advanced control includes an address stack for storing addresses to be sent to a main storage as readout requests when instruction words or data are not contained in the high speed buffer storage, together with instruction stream numbers and flags for indicating whether the readout requests are conditional requests based on predicted prefetching. For the addresses having the conditional request flags, they are sent as the readout requests when the prediction is finally determined and the other addresses are cancelled. In this manner, the advanced control need not be interrupted.