GB2408819B - Data processor with an improved data dependence detector - Google Patents

Data processor with an improved data dependence detector

Info

Publication number
GB2408819B
GB2408819B GB0428393A GB0428393A GB2408819B GB 2408819 B GB2408819 B GB 2408819B GB 0428393 A GB0428393 A GB 0428393A GB 0428393 A GB0428393 A GB 0428393A GB 2408819 B GB2408819 B GB 2408819B
Authority
GB
United Kingdom
Prior art keywords
data
improved
dependence detector
data processor
processor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0428393A
Other versions
GB0428393D0 (en
GB2408819A (en
Inventor
Atsufumi Shibayama
Satoshi Matsushita
Sunao Torii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2000363727A external-priority patent/JP3729064B2/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0428393D0 publication Critical patent/GB0428393D0/en
Publication of GB2408819A publication Critical patent/GB2408819A/en
Application granted granted Critical
Publication of GB2408819B publication Critical patent/GB2408819B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3824—Operand accessing
    • G06F9/383—Operand prefetching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3824—Operand accessing
    • G06F9/3834—Maintaining memory consistency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3838—Dependency mechanisms, e.g. register scoreboarding

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Advance Control (AREA)
GB0428393A 2000-11-29 2001-11-28 Data processor with an improved data dependence detector Expired - Fee Related GB2408819B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000363727A JP3729064B2 (en) 2000-11-29 2000-11-29 Data dependency detection device
GB0128485A GB2372120B (en) 2000-11-29 2001-11-28 Data processor with an improved data dependence detector

Publications (3)

Publication Number Publication Date
GB0428393D0 GB0428393D0 (en) 2005-02-02
GB2408819A GB2408819A (en) 2005-06-08
GB2408819B true GB2408819B (en) 2005-08-03

Family

ID=34575731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0428393A Expired - Fee Related GB2408819B (en) 2000-11-29 2001-11-28 Data processor with an improved data dependence detector

Country Status (1)

Country Link
GB (1) GB2408819B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111289544A (en) * 2020-02-25 2020-06-16 沈阳先进医疗设备技术孵化中心有限公司 CT (computed tomography) equipment and parameter configuration method of detector array of CT equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781752A (en) * 1996-12-26 1998-07-14 Wisconsin Alumni Research Foundation Table based data speculation circuit for parallel processing computer
US5872949A (en) * 1996-11-13 1999-02-16 International Business Machines Corp. Apparatus and method for managing data flow dependencies arising from out-of-order execution, by an execution unit, of an instruction series input from an instruction source

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5872949A (en) * 1996-11-13 1999-02-16 International Business Machines Corp. Apparatus and method for managing data flow dependencies arising from out-of-order execution, by an execution unit, of an instruction series input from an instruction source
US5781752A (en) * 1996-12-26 1998-07-14 Wisconsin Alumni Research Foundation Table based data speculation circuit for parallel processing computer

Also Published As

Publication number Publication date
GB0428393D0 (en) 2005-02-02
GB2408819A (en) 2005-06-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20161128