GB2456891B - Method to update corrupted local working registers in a multi-staged pipelined execution unit - Google Patents

Method to update corrupted local working registers in a multi-staged pipelined execution unit

Info

Publication number
GB2456891B
GB2456891B GB0823186.2A GB0823186A GB2456891B GB 2456891 B GB2456891 B GB 2456891B GB 0823186 A GB0823186 A GB 0823186A GB 2456891 B GB2456891 B GB 2456891B
Authority
GB
United Kingdom
Prior art keywords
update
execution unit
working registers
local working
pipelined execution
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.)
Active
Application number
GB0823186.2A
Other versions
GB2456891A (en
GB0823186D0 (en
Inventor
Guenter Gerwig
Ulrich Mayer
Frank Lehnert
Kevin Chung-Lung Shum
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB0823186D0 publication Critical patent/GB0823186D0/en
Publication of GB2456891A publication Critical patent/GB2456891A/en
Application granted granted Critical
Publication of GB2456891B publication Critical patent/GB2456891B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G06F9/3824—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
    • G06F9/3836—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
    • G06F9/3854—Instruction completion, e.g. retiring, committing or graduating
    • G06F9/3858—Result writeback, i.e. updating the architectural state or memory
    • 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
    • G06F9/3861—Recovery, e.g. branch miss-prediction, exception handling
    • G06F9/3863—Recovery, e.g. branch miss-prediction, exception handling using multiple copies of the architectural state, e.g. shadow registers
    • 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
    • G06F9/3885—Concurrent instruction execution, e.g. pipeline or look ahead using a plurality of independent parallel functional units

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)
GB0823186.2A 2008-01-30 2008-12-19 Method to update corrupted local working registers in a multi-staged pipelined execution unit Active GB2456891B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08150812 2008-01-30

Publications (3)

Publication Number Publication Date
GB0823186D0 GB0823186D0 (en) 2009-01-28
GB2456891A GB2456891A (en) 2009-08-05
GB2456891B true GB2456891B (en) 2012-02-01

Family

ID=40343893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0823186.2A Active GB2456891B (en) 2008-01-30 2008-12-19 Method to update corrupted local working registers in a multi-staged pipelined execution unit

Country Status (1)

Country Link
GB (1) GB2456891B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070043934A1 (en) * 2005-08-22 2007-02-22 Intel Corporation Early misprediction recovery through periodic checkpoints
US7200742B2 (en) * 2005-02-10 2007-04-03 International Business Machines Corporation System and method for creating precise exceptions
US20080016325A1 (en) * 2006-07-12 2008-01-17 Laudon James P Using windowed register file to checkpoint register state
US7475230B2 (en) * 2003-05-16 2009-01-06 Sun Microsystems, Inc. Method and apparatus for performing register file checkpointing to support speculative execution within a processor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7475230B2 (en) * 2003-05-16 2009-01-06 Sun Microsystems, Inc. Method and apparatus for performing register file checkpointing to support speculative execution within a processor
US7200742B2 (en) * 2005-02-10 2007-04-03 International Business Machines Corporation System and method for creating precise exceptions
US20070043934A1 (en) * 2005-08-22 2007-02-22 Intel Corporation Early misprediction recovery through periodic checkpoints
US20080016325A1 (en) * 2006-07-12 2008-01-17 Laudon James P Using windowed register file to checkpoint register state

Also Published As

Publication number Publication date
GB2456891A (en) 2009-08-05
GB0823186D0 (en) 2009-01-28

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20130107