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. 03, 1985
Filed:
Jul. 23, 1982
James R Boddie, Hazlet, NJ (US);
John S Thompson, Tinton Falls, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A pipelined digital processor includes a common data and control bus and a source (100 or 105) of instructions and data words. An arithmetic section (110) processes one data word with another data word through selected processing subsections (112, 115, 116) performing operations according to an expression, thereby producing a resultant data word and a status signal. A destination (105) receives the resultant data word from the arithmetic section. Control circuits (IR-C) decode a single conditional instruction for controlling performance of a specific condition test during a first subsequent processor cycle (i.e., i+2). The control circuits further decoding another instruction word during the first subsequent processor cycle for controlling all processing sections operations during a second subsequent processor cycle (i.e., i+3). A circuit (215 and 122) compares the status signal with the specific condition information included in the conditional instruction for selectively disabling at least one section while enabling at least one other section of the digital processor during the second subsequent processor cycle.