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. 15, 2001
Filed:
May. 29, 1997
Chikako Ikenaga, Hyogo-ken, JP;
Hideki Ando, Hyogo-ken, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The disclosed is an improved superscalar processor for reducing the time required for execution of an instruction. The superscalar processor includes an instruction fetching stage, an instruction decoding stage, and function units each having a pipeline structure. A function unit includes an execution stage, a memory access stage, and a write back stage. Function units are connected through a newly provided bypass line. Data obtained by preceding execution in the other function unit (the other pipeline) is applied through the bypass line to a function unit (pipeline) for executing a later instruction. Executed data is transmitted between pipelines without through a register file, so that it becomes unnecessary for the pipeline requesting the executed data to wait for termination of execution of the other pipeline. As a result, time required for execution of an instruction is reduced.