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. 16, 2004
Filed:
Nov. 27, 2002
Taketo Heishi, Osaka, JP;
Kensuke Odani, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Each of registers R to R is divided into the upper 32-bit area and the lower 32-bit area. A register writing control unit outputs information to the selectors and on the registers and the locations (upper and lower areas) in which data is written by the instructions that have issued in one cycle. Each of the selectors and selects one out of pieces of data that have been output from first, second, and third arithmetic operation units , and and writes the selected data in the upper or lower area in one register. A dependency analysis unit in a compiling apparatus considers the upper and lower registers in one 64-bit register as separate resources, analyzes the data dependency relations between the instructions, and generates a dependency graph that indicates the data dependency relations. A instruction rearrangement unit rearranges the instructions and generates execution codes using the dependency graph.