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. 27, 1988
Filed:
Jan. 29, 1986
Robert E Stewart, Stow, MA (US);
Donald F Hooper, Northboro, MA (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
A microprogrammed data processing system uses a plurality of control stores to control the data processing system in response to a macroinstruction sequence. Between each control store is a latch element resulting in a given address being applied to each control store at different system clock cycles. The corresponding microinstruction segment from each control store is therefore provided at different clock cycles, making it possible to coordinate the microinstruction segment with the corresponding flow of data through the central processing unit. The use of a plurality of control stores can reduce the number of gate elements needed to delay microinstruction segments.