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.

Date of Patent:
Jul. 19, 2016

Filed:

Jun. 26, 2013
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Harry Barowski, Boeblingen, DE;

Tim Niggemeier, Laatzen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2006.01); G06F 9/38 (2006.01);
U.S. Cl.
CPC ...
G06F 9/3836 (2013.01); G06F 9/3826 (2013.01); G06F 9/3832 (2013.01); G06F 9/3857 (2013.01); G06F 9/3869 (2013.01); G06F 9/3873 (2013.01);
Abstract

Systems, methods and computer program product provide for pipelining out-of-order instructions. Embodiments comprise an instruction reservation station for short instructions of a short latency type and long instructions of a long latency type, an issue queue containing at least two short instructions of a short latency type, which are to be chained to match a latency of a long instruction of a long latency type, a register file, at least one execution pipeline for instructions of a short latency type and at least one execution pipeline for instructions of a long latency type; wherein results of the at least one execution pipeline for instructions of the short latency type are written to the register file, preserved in an auxiliary buffer, or forwarded to inputs of said execution pipelines. Data of the auxiliary buffer are written to the register file.


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