GB2537524B - Variable length execution pipeline having an odd number of stages - Google Patents

Variable length execution pipeline having an odd number of stages

Info

Publication number
GB2537524B
GB2537524B GB1608809.8A GB201608809A GB2537524B GB 2537524 B GB2537524 B GB 2537524B GB 201608809 A GB201608809 A GB 201608809A GB 2537524 B GB2537524 B GB 2537524B
Authority
GB
United Kingdom
Prior art keywords
stages
variable length
odd number
execution pipeline
length 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
GB1608809.8A
Other versions
GB201608809D0 (en
GB2537524A (en
Inventor
Rarick Leonard
Veith Kristie
Manoukian Manouk
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.)
Imagination Technologies Ltd
Original Assignee
Imagination Technologies Ltd
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 US14/502,689 external-priority patent/US9558002B2/en
Application filed by Imagination Technologies Ltd filed Critical Imagination Technologies Ltd
Publication of GB201608809D0 publication Critical patent/GB201608809D0/en
Publication of GB2537524A publication Critical patent/GB2537524A/en
Application granted granted Critical
Publication of GB2537524B publication Critical patent/GB2537524B/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, look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline, look ahead using instruction pipelines
    • 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, look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline, look ahead using instruction pipelines
    • G06F9/3873—Variable length pipelines, e.g. elastic pipeline
    • 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, look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order 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, look ahead
    • G06F9/3885—Concurrent instruction execution, e.g. pipeline, look ahead using a plurality of independent parallel functional units
    • G06F9/3887—Concurrent instruction execution, e.g. pipeline, look ahead using a plurality of independent parallel functional units controlled by a single instruction for multiple data lanes [SIMD]

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)
GB1608809.8A 2014-09-30 2015-09-23 Variable length execution pipeline having an odd number of stages Active GB2537524B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/502,689 US9558002B2 (en) 2014-09-30 2014-09-30 Variable length execution pipeline
GB1516837.0A GB2532847B (en) 2014-09-30 2015-09-23 Variable length execution pipeline

Publications (3)

Publication Number Publication Date
GB201608809D0 GB201608809D0 (en) 2016-07-06
GB2537524A GB2537524A (en) 2016-10-19
GB2537524B true GB2537524B (en) 2017-09-27

Family

ID=56959253

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1608809.8A Active GB2537524B (en) 2014-09-30 2015-09-23 Variable length execution pipeline having an odd number of stages
GB1608807.2A Active GB2537523B (en) 2014-09-30 2015-09-23 Multimode variable length execution pipeline

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1608807.2A Active GB2537523B (en) 2014-09-30 2015-09-23 Multimode variable length execution pipeline

Country Status (1)

Country Link
GB (2) GB2537524B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287108A (en) * 1994-02-28 1995-09-06 Intel Corp Method and apparatus for avoiding writeback conflicts between execution units sharing a common writeback path
WO2000042499A1 (en) * 1999-01-12 2000-07-20 Bops Incorporated Methods and apparatus to dynamically reconfigure the instruction pipeline of indirect very long instruction word scalable processor
US20010034826A1 (en) * 1998-03-31 2001-10-25 Patrice Roussel Method and apparatus for staggering execution of an instruction
US8108652B1 (en) * 2007-09-13 2012-01-31 Ronald Chi-Chun Hui Vector processing with high execution throughput

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004062281A (en) * 2002-07-25 2004-02-26 Nec Micro Systems Ltd Pipeline processor and pipeline operation control method
JP5126226B2 (en) * 2007-05-17 2013-01-23 富士通株式会社 Arithmetic unit, processor and processor architecture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287108A (en) * 1994-02-28 1995-09-06 Intel Corp Method and apparatus for avoiding writeback conflicts between execution units sharing a common writeback path
US20010034826A1 (en) * 1998-03-31 2001-10-25 Patrice Roussel Method and apparatus for staggering execution of an instruction
WO2000042499A1 (en) * 1999-01-12 2000-07-20 Bops Incorporated Methods and apparatus to dynamically reconfigure the instruction pipeline of indirect very long instruction word scalable processor
US8108652B1 (en) * 2007-09-13 2012-01-31 Ronald Chi-Chun Hui Vector processing with high execution throughput

Also Published As

Publication number Publication date
GB2537523B (en) 2017-09-27
GB201608809D0 (en) 2016-07-06
GB2537523A (en) 2016-10-19
GB201608807D0 (en) 2016-07-06
GB2537524A (en) 2016-10-19

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