Pre-Grant Publication Number: 20070118696
Register tracking for speculative prefetching
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Prior Art Detail
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#34us patent number 5933630
Applies to Claims 1,10,15,2,3,4,5,8
Submitted by: Juliana AgonCreated: over 4 years ago
2 thumbs up 1 thumb down
Summary / Description
Summary / DescriptionProgram launch acceleration using cache
 
Basic Information
Type of Prior ArtIssued Patents - US
 
CountryUnited States of America
 
Patent/Application #5933630
 
Kind CodeUnited States (US) - United STATES Patent - A
 
Patentee Name
 
Relevant Pages, Columns, or Lines
 
URL
 
Filing DateAugust 3, 1999
 
Additional Information
 
Notes / To Do
Notes
 
Excerpt
Excerpt
Owner of this patent asserted claims against Microsoft for thei Vista's "superfetch" and XP's "prefetch" features so all of this may be relevant art.
 
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Claims
1
An apparatus comprising: a register tracker to generate a pre-computation slice; and a pre-computation engine to execute the pre-computation slice.
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see 5933630. "superfectch" and "prefetch" features from Microsoft Windows Vista and XP were alledgely covered by the '630 claims which also seem to be covered under this general independent claim 1.
see 5933630. "superfectch" and "prefetch" features from Microsoft Windows Vista and XP were alledgely covered by the '630 claims which also seem to be covered under this general independent claim 1.
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2
The apparatus of Claim 1, further comprising a cache, wherein the pre-computation engine is to execute the pre-computation slice to generate a first prefetch request.
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'630
'630
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3
The apparatus of Claim 2, further comprising a stride prefetcher, wherein the stride prefetcher is to generate a second prefetch request based on the first prefetch request.
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'630
'630
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4
The apparatus of Claim 1, further comprising a pre-computation cache to store the pre-computation slice between generation and execution.
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'630
'630
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5
The apparatus of Claim 4, wherein the pre-computation cache is also to store a software-generated pre-computation slice.
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'630
'630
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8
A method comprising: detecting a change to the contents of a register; and generating a pre-computation slice based on the contents of the register.
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'630
'630
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10
The method of Claim 8, further comprising storing the pre-computation slice in a pre-computation cache.
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'630
'630
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15
A system comprising: a memory; a processor including: a cache; a register tracker to generate a pre-computation slice; and a pre-computation engine to execute the pre-computation slice to cause data to be prefetched from the memory to the cache.
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'630
'630
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