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:
Dec. 15, 1998
Filed:
Jan. 22, 1996
Shuichi Takayama, Takarazuka, JP;
Nobuo Higaki, Osaka, JP;
Nobuki Tominaga, Kyoto, JP;
Shinya Miyaji, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
A compiler comprises a loop detecting unit for extracting information of loops, and a high-speed loop applying unit generating a first loop exclusive instruction, placing the instruction immediately before the entry of a loop, generating second loop exclusive instructions, and placing the instruction at each place to branch to the entry of the loop. A processor comprises: a pipeline comprising: an instruction fetching unit, an instruction decoding unit, and an executing unit; a branch target storage unit; a branch target registering unit for, after the instruction decoding unit has decoded a first loop exclusive instruction, registering branch target information of an instruction succeeding to the first loop exclusive instruction in the branch target registering unit; and a branch executing unit for, after the decoding unit has decoded a second loop exclusive instruction, judging whether to execute a loop, if judges to execute, reading the branch target information registered in the branch target storage unit, and controlling the pipeline so that the program executes the loop using the read branch target information.