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:
Sep. 13, 1988
Filed:
Nov. 15, 1985
Donald C Wiser, Sutton, MA (US);
David I Epstein, Bellingham, MA (US);
Mark D Hummel, Bellingham, MA (US);
Patrick J Weiler, Watertown, MA (US);
Thomas J Myer, Grafton, MA (US);
Data General Corporation, Westboro, MA (US);
Abstract
Apparatus and method is disclosed for controlling the timing of the addressing, fetching and executing of microinstructions in a data processing system such that delayed sequencing microinstructions, stretched delayed sequencing microinstructions and immediate sequencing microinstructions may be intermixed in the microinstruction stream. Circuitry is provided to determine the type of sequencing specified for each microinstruction and control the generation of the execution cycle signal and the microinstruction address clocking signal such that these signals occur in the appropriate time sequence to accomplish the specified sequencing.