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. 20, 1987
Filed:
Dec. 18, 1984
Applicant:
Inventors:
Masaya Watabe, Hadano, JP;
Shuichi Abe, Hadano, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
In the data processing apparatus utilizing the pipeline control, an OSC detect circuit detects that the execution result of a store-type instruction whose store operation has not been completed is utilized as an operand of a fetch-type instruction which succeeds the store-type instruction. When the OSC detect circuit detects an OSC and a store operation of a preceding store-type instruction is executed, the data processing apparatus aligns the operand position with the operand fetched by the fetch-type instruction and merges the store operand.