Dual issuing of complex instruction set instructions

US9104399B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9104399-B2
Application numberUS-64571609-A
CountryUS
Kind codeB2
Filing dateDec 23, 2009
Priority dateDec 23, 2009
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A system and method for issuing a processor instruction to multiple processing sections arranged in an out-of-order processing pipeline architecture. The multiple processing sections include a first execution unit with a pipeline length and a second execution unit operating upon data produced by the first execution unit. An instruction issue unit accepts a complex instruction that is cracked into respective micro-ops for the first execution unit and the second execution unit. The instruction issue unit issues the first micro-op to the first execution unit to produce intermediate data. The instruction issue unit then delays for a time period corresponding to the processing pipeline length of the first execution unit. After the delay, a second micro-op is issued to the second execution unit.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for issuing a processor instruction to multiple processing sections, the method comprising: accepting, at an instruction issue unit within a processor, an instruction that is to be issued as a first micro-op to a first execution unit of the processor and a second micro-op to a second execution unit of the processor, the first micro-op causing the first execution unit to determine intermediate data to be provided to the second execution unit for use…

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What does patent US9104399B2 cover?
A system and method for issuing a processor instruction to multiple processing sections arranged in an out-of-order processing pipeline architecture. The multiple processing sections include a first execution unit with a pipeline length and a second execution unit operating upon data produced by the first execution unit. An instruction issue unit accepts a complex instruction that is cracked in…
Who is the assignee on this patent?
Busaba Fadi, Curran Brian, Eisen Lee, and 4 more
What technology area does this patent fall under?
Primary CPC classification G06F9/3001. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).