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. 23, 1995
Filed:
Jul. 01, 1991
Applicant:
Inventors:
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Microcomputer System Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395375 ; 395800 ; 3642318 ; 3642615 ; 364D / ;
Abstract
A method and apparatus for controlling a conditional branch instruction in a pipeline type data processing apparatus which are adapted to judge whether or not a conditional branch instruction is valid, judge whether or not a condition code necessary for a taken/not-taken judgement made for the conditional branch instruction is valid, and selectively make a taken/not-taken judgement for the conditional branch instruction in accordance with the results of the judgements made to the conditional branch instruction and the condition code.