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:
Mar. 01, 2011
Filed:
Jan. 31, 2008
Ronald P. Hall, Cedar Park, TX (US);
Michael Lance Karm, Cedar Park, TX (US);
David Mui, Round Rock, TX (US);
Albert James Van Norstrand, Jr., Round Rock, TX (US);
Ronald P. Hall, Cedar Park, TX (US);
Michael Lance Karm, Cedar Park, TX (US);
David Mui, Round Rock, TX (US);
Albert James Van Norstrand, Jr., Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A computer implemented method, a processor chip, a computer program product, and a data processing system managing a link stack. The data processing system utilizes speculative pushes onto and pops from the link stack. The link stack comprises a set of entries, and each entry comprises a set of state bits. A speculative push of a first instruction is received onto the data stack, and the first instruction is stored into a first entry of the set of entries. A first bit is set to indicate that the first instruction is a valid instruction. A second bit is set to indicate that the first instruction has been speculatively pushed onto the link stack. The link stack pointer control is updated to indicate that the first entry is a top-of-data stack entry.