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:
Oct. 15, 1996
Filed:
Mar. 22, 1995
Yukari Watanabe, Itami, JP;
Toyohiko Yoshida, Itami, JP;
Masahito Matsuo, Itami, JP;
Yuichi Saito, Itami, JP;
Toru Shimizu, Itami, JP;
Abstract
This invention relates to a data processor with pipelining system, which is provided with at least two stages each having working stackpointers, and so constructed that each stage can independently refer to the working stackpointer corresponding to each stage, and the renewal of each working stackpointer corresponding to each stage occurs synchronously with pipeline processing, so that when execution of a plural instructions including designation of operands under stack-push addressing mode and stack-pop addressing mode, result of address calculation executed at the address calculation stage is sequentially transferred to a corresponding working stackpointer in a next pipeline stage. This is synchronized with the transfer of instructions through the stages of pipeline, thereby being possible for the data processor to smoothly execute pipelining process.