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. 11, 2001
Filed:
Sep. 08, 1998
Stephen C. Hale, San Jose, CA (US);
ATI International SRL, Hastings, BB;
Abstract
The present invention provides an apparatus and a method for address generation. In one embodiment, an apparatus for an address generation unit of an ALU (Arithmetic Logic Unit) of a microprocessor includes a first carry-propagate adder that adds a lower 16 bits of a constant or displacement and a lower 16 bits of a segment base, and a second carry-propagate adder connected to the first carry-propagate adder, wherein the second carry-propagate adder adds a lower 16 bits of a base and an output of the first 16-bit carry-propagate adder to generate a lower 16 bits of an address. In one embodiment, the first carry-propagate adder and the second carry-propagate adder are each 16-bit carry-propagate adders.