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:
Nov. 10, 1998
Filed:
Mar. 13, 1997
Chikako Nakanishi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Each entry of BTBs (11 and 21) stores branch prediction information on a branch instruction including a 2-bit offset which indicates a location at which the branch instruction is stored in a cache block. The BTBs (11 and 21) simultaneously output the branch prediction informations stored in the entries specified by an index of an executable instruction address in an address fetch unit (1) as the first and second retrieval branch prediction informations, respectively. A selection circuit (2) determines a next program counter value (PC') on the basis of outputs of tag detection circuits (12 and 22), outputs of PC detection circuits (13 and 23), a tag in the address fetch unit (1), a program counter value (PC) and the first and second retrieval branch prediction informations.