TW360848B - Forwarding of results of store instructions - Google Patents

Forwarding of results of store instructions

Info

Publication number
TW360848B
TW360848B TW086114953A TW86114953A TW360848B TW 360848 B TW360848 B TW 360848B TW 086114953 A TW086114953 A TW 086114953A TW 86114953 A TW86114953 A TW 86114953A TW 360848 B TW360848 B TW 360848B
Authority
TW
Taiwan
Prior art keywords
instruction
load
store
store instructions
forwarding
Prior art date
Application number
TW086114953A
Other languages
English (en)
Inventor
Kurt A Feiste
John S Muhich
Larry E Thatcher
Steven W White
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of TW360848B publication Critical patent/TW360848B/zh

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
    • G06F9/3854—Instruction completion, e.g. retiring, committing or graduating
    • G06F9/3856—Reordering of instructions, e.g. using queues or age tags
    • 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
    • G06F9/3802—Instruction prefetching
    • G06F9/3816—Instruction alignment, e.g. cache line crossing
    • 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
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/30076—Arrangements for executing specific machine instructions to perform miscellaneous control operations, e.g. NOP
    • G06F9/30079—Pipeline control instructions, e.g. multicycle NOP
    • 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
    • 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
    • G06F9/3826—Bypassing or forwarding of data results, e.g. locally between pipeline stages or within a pipeline stage
    • 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
    • G06F9/384—Register renaming
    • 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
    • G06F9/3861—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

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)
  • Memory System (AREA)
  • Communication Control (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Peptides Or Proteins (AREA)
TW086114953A 1997-04-10 1997-10-13 Forwarding of results of store instructions TW360848B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/826,854 US6021485A (en) 1997-04-10 1997-04-10 Forwarding store instruction result to load instruction with reduced stall or flushing by effective/real data address bytes matching

Publications (1)

Publication Number Publication Date
TW360848B true TW360848B (en) 1999-06-11

Family

ID=25247703

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086114953A TW360848B (en) 1997-04-10 1997-10-13 Forwarding of results of store instructions

Country Status (11)

Country Link
US (1) US6021485A (zh)
EP (1) EP0871109B1 (zh)
JP (1) JP3096451B2 (zh)
KR (1) KR100303673B1 (zh)
CN (1) CN1095117C (zh)
AT (1) ATE242509T1 (zh)
BR (1) BR9801230A (zh)
DE (1) DE69815201D1 (zh)
IL (1) IL123426A (zh)
MY (1) MY121300A (zh)
TW (1) TW360848B (zh)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990003937A (ko) * 1997-06-26 1999-01-15 김영환 프리페치 장치
US6308260B1 (en) * 1998-09-17 2001-10-23 International Business Machines Corporation Mechanism for self-initiated instruction issuing and method therefor
US6141747A (en) * 1998-09-22 2000-10-31 Advanced Micro Devices, Inc. System for store to load forwarding of individual bytes from separate store buffer entries to form a single load word
US7779236B1 (en) * 1998-12-31 2010-08-17 Stmicroelectronics, Inc. Symbolic store-load bypass
US6349382B1 (en) * 1999-03-05 2002-02-19 International Business Machines Corporation System for store forwarding assigning load and store instructions to groups and reorder queues to keep track of program order
EP1050807A1 (en) * 1999-05-03 2000-11-08 Sgs Thomson Microelectronics Sa Memory access in a computer memory
US6481251B1 (en) 1999-10-25 2002-11-19 Advanced Micro Devices, Inc. Store queue number assignment and tracking
US6523109B1 (en) 1999-10-25 2003-02-18 Advanced Micro Devices, Inc. Store queue multimatch detection
US6717577B1 (en) * 1999-10-28 2004-04-06 Nintendo Co., Ltd. Vertex cache for 3D computer graphics
US6662280B1 (en) * 1999-11-10 2003-12-09 Advanced Micro Devices, Inc. Store buffer which forwards data based on index and optional way match
US6970996B1 (en) * 2000-01-04 2005-11-29 National Semiconductor Corporation Operand queue for use in a floating point unit to reduce read-after-write latency and method of operation
US6640293B1 (en) * 2000-07-24 2003-10-28 International Business Machines Corporation Apparatus and method of utilizing Alias Hit signals to detect errors within the real address tag arrays
US6678807B2 (en) * 2000-12-21 2004-01-13 Intel Corporation System and method for multiple store buffer forwarding in a system with a restrictive memory model
US6941449B2 (en) * 2002-03-04 2005-09-06 Hewlett-Packard Development Company, L.P. Method and apparatus for performing critical tasks using speculative operations
US20030177312A1 (en) * 2002-03-15 2003-09-18 Aravindh Baktha Controlling a store data forwarding mechanism during execution of a load operation
US7222226B1 (en) 2002-04-30 2007-05-22 Advanced Micro Devices, Inc. System and method for modifying a load operation to include a register-to-register move operation in order to forward speculative load results to a dependent operation
US7028166B2 (en) * 2002-04-30 2006-04-11 Advanced Micro Devices, Inc. System and method for linking speculative results of load operations to register values
US7089400B1 (en) 2002-08-29 2006-08-08 Advanced Micro Devices, Inc. Data speculation based on stack-relative addressing patterns
US7024537B2 (en) * 2003-01-21 2006-04-04 Advanced Micro Devices, Inc. Data speculation based on addressing patterns identifying dual-purpose register
US7434031B1 (en) * 2004-04-12 2008-10-07 Sun Microsystems, Inc. Execution displacement read-write alias prediction
US7263600B2 (en) * 2004-05-05 2007-08-28 Advanced Micro Devices, Inc. System and method for validating a memory file that links speculative results of load operations to register values
US7376816B2 (en) * 2004-11-12 2008-05-20 International Business Machines Corporation Method and systems for executing load instructions that achieve sequential load consistency
US7363468B2 (en) * 2004-11-18 2008-04-22 International Business Machines Corporation Load address dependency mechanism system and method in a high frequency, low power processor system
US7900023B2 (en) * 2004-12-16 2011-03-01 Intel Corporation Technique to enable store forwarding during long latency instruction execution
US7376817B2 (en) * 2005-08-10 2008-05-20 P.A. Semi, Inc. Partial load/store forward prediction
US20070288725A1 (en) * 2006-06-07 2007-12-13 Luick David A A Fast and Inexpensive Store-Load Conflict Scheduling and Forwarding Mechanism
US7461238B2 (en) * 2006-06-07 2008-12-02 International Business Machines Corporation Simple load and store disambiguation and scheduling at predecode
US7600097B1 (en) * 2006-09-05 2009-10-06 Sun Microsystems, Inc. Detecting raw hazards in an object-addressed memory hierarchy by comparing an object identifier and offset for a load instruction to object identifiers and offsets in a store queue
US7594100B2 (en) * 2006-09-29 2009-09-22 Sun Microsystems, Inc. Efficient store queue architecture
US8627047B2 (en) * 2008-02-15 2014-01-07 International Business Machines Corporation Store data forwarding with no memory model restrictions
EP2202637B1 (en) * 2008-12-25 2018-02-07 STMicroelectronics (Beijing) R&D Co. Ltd. Reduced power load/store queue searching mechanism
US8086826B2 (en) * 2009-03-24 2011-12-27 International Business Machines Corporation Dependency tracking for enabling successive processor instructions to issue
WO2012107800A1 (en) * 2011-02-11 2012-08-16 Freescale Semiconductor, Inc. Integrated circuit devices and methods for scheduling and executing a restricted load operation
US9069563B2 (en) 2011-09-16 2015-06-30 International Business Machines Corporation Reducing store-hit-loads in an out-of-order processor
CN102364431B (zh) * 2011-10-20 2014-09-10 北京北大众志微系统科技有限责任公司 一种实现读指令执行的方法及装置
US9128725B2 (en) 2012-05-04 2015-09-08 Apple Inc. Load-store dependency predictor content management
US9600289B2 (en) 2012-05-30 2017-03-21 Apple Inc. Load-store dependency predictor PC hashing
CN104823168B (zh) * 2012-06-15 2018-11-09 英特尔公司 用于实现从由加载存储重新排序和优化导致的推测性转发遗漏预测/错误中恢复的方法和系统
CN104823154B (zh) 2012-06-15 2017-12-29 英特尔公司 包括虚拟加载存储队列的处理器和系统
KR101826399B1 (ko) 2012-06-15 2018-02-06 인텔 코포레이션 Load store 재정렬 및 최적화를 구현하는 명령어 정의
WO2013188306A1 (en) 2012-06-15 2013-12-19 Soft Machines, Inc. Reordered speculative instruction sequences with a disambiguation-free out of order load store queue
TWI599879B (zh) 2012-06-15 2017-09-21 英特爾股份有限公司 在處理器中之免消歧義失序載入儲存佇列方法和微處理器
EP2862062B1 (en) 2012-06-15 2024-03-06 Intel Corporation A virtual load store queue having a dynamic dispatch window with a distributed structure
US9003225B2 (en) * 2012-10-17 2015-04-07 Advanced Micro Devices, Inc. Confirming store-to-load forwards
US8977821B2 (en) * 2012-10-25 2015-03-10 Texas Instruments Incorporated Parallel processing of multiple block coherence operations
US9535695B2 (en) * 2013-01-25 2017-01-03 Apple Inc. Completing load and store instructions in a weakly-ordered memory model
US9361113B2 (en) 2013-04-24 2016-06-07 Globalfoundries Inc. Simultaneous finish of stores and dependent loads
US9665468B2 (en) 2013-08-19 2017-05-30 Intel Corporation Systems and methods for invasive debug of a processor without processor execution of instructions
US9632947B2 (en) * 2013-08-19 2017-04-25 Intel Corporation Systems and methods for acquiring data for loads at different access times from hierarchical sources using a load queue as a temporary storage buffer and completing the load early
US9619382B2 (en) 2013-08-19 2017-04-11 Intel Corporation Systems and methods for read request bypassing a last level cache that interfaces with an external fabric
US9361227B2 (en) 2013-08-30 2016-06-07 Soft Machines, Inc. Systems and methods for faster read after write forwarding using a virtual address
US10303480B2 (en) * 2013-10-30 2019-05-28 Advanced Micro Devices Unified store queue for reducing linear aliasing effects
US9710268B2 (en) 2014-04-29 2017-07-18 Apple Inc. Reducing latency for pointer chasing loads
US9940264B2 (en) * 2014-10-10 2018-04-10 International Business Machines Corporation Load and store ordering for a strongly ordered simultaneous multithreading core
US9996356B2 (en) * 2015-12-26 2018-06-12 Intel Corporation Method and apparatus for recovering from bad store-to-load forwarding in an out-of-order processor
US10514925B1 (en) 2016-01-28 2019-12-24 Apple Inc. Load speculation recovery
US9983875B2 (en) 2016-03-04 2018-05-29 International Business Machines Corporation Operation of a multi-slice processor preventing early dependent instruction wakeup
US10437595B1 (en) 2016-03-15 2019-10-08 Apple Inc. Load/store dependency predictor optimization for replayed loads
US10037211B2 (en) 2016-03-22 2018-07-31 International Business Machines Corporation Operation of a multi-slice processor with an expanded merge fetching queue
US10346174B2 (en) 2016-03-24 2019-07-09 International Business Machines Corporation Operation of a multi-slice processor with dynamic canceling of partial loads
US10761854B2 (en) * 2016-04-19 2020-09-01 International Business Machines Corporation Preventing hazard flushes in an instruction sequencing unit of a multi-slice processor
US10037229B2 (en) 2016-05-11 2018-07-31 International Business Machines Corporation Operation of a multi-slice processor implementing a load/store unit maintaining rejected instructions
US9934033B2 (en) 2016-06-13 2018-04-03 International Business Machines Corporation Operation of a multi-slice processor implementing simultaneous two-target loads and stores
US10042647B2 (en) 2016-06-27 2018-08-07 International Business Machines Corporation Managing a divided load reorder queue
US10318419B2 (en) 2016-08-08 2019-06-11 International Business Machines Corporation Flush avoidance in a load store unit
US10572256B2 (en) 2017-10-06 2020-02-25 International Business Machines Corporation Handling effective address synonyms in a load-store unit that operates without address translation
US10606590B2 (en) 2017-10-06 2020-03-31 International Business Machines Corporation Effective address based load store unit in out of order processors
US11175924B2 (en) 2017-10-06 2021-11-16 International Business Machines Corporation Load-store unit with partitioned reorder queues with single cam port
US10579387B2 (en) * 2017-10-06 2020-03-03 International Business Machines Corporation Efficient store-forwarding with partitioned FIFO store-reorder queue in out-of-order processor
US10417002B2 (en) * 2017-10-06 2019-09-17 International Business Machines Corporation Hazard detection of out-of-order execution of load and store instructions in processors without using real addresses
US10394558B2 (en) 2017-10-06 2019-08-27 International Business Machines Corporation Executing load-store operations without address translation hardware per load-store unit port
US10606591B2 (en) 2017-10-06 2020-03-31 International Business Machines Corporation Handling effective address synonyms in a load-store unit that operates without address translation
US10534616B2 (en) * 2017-10-06 2020-01-14 International Business Machines Corporation Load-hit-load detection in an out-of-order processor
CN112445587A (zh) * 2019-08-30 2021-03-05 上海华为技术有限公司 一种任务处理的方法以及任务处理装置
US11113056B2 (en) * 2019-11-27 2021-09-07 Advanced Micro Devices, Inc. Techniques for performing store-to-load forwarding
US11687337B2 (en) * 2021-08-20 2023-06-27 International Business Machines Corporation Processor overriding of a false load-hit-store detection
CN113961247B (zh) * 2021-09-24 2022-10-11 北京睿芯众核科技有限公司 一种基于risc-v处理器的向量存/取指令执行方法、系统及装置
CN117478089B (zh) * 2023-12-28 2024-03-29 北京微核芯科技有限公司 存数指令执行方法、装置及电子设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663083B1 (en) * 1992-09-29 2000-12-20 Seiko Epson Corporation System and method for handling load and/or store operations in a superscalar microprocessor
US5467473A (en) * 1993-01-08 1995-11-14 International Business Machines Corporation Out of order instruction load and store comparison
US5588126A (en) * 1993-12-30 1996-12-24 Intel Corporation Methods and apparatus for fordwarding buffered store data on an out-of-order execution computer system
US5666506A (en) * 1994-10-24 1997-09-09 International Business Machines Corporation Apparatus to dynamically control the out-of-order execution of load/store instructions in a processor capable of dispatchng, issuing and executing multiple instructions in a single processor cycle
US5784586A (en) * 1995-02-14 1998-07-21 Fujitsu Limited Addressing method for executing load instructions out of order with respect to store instructions
US5754812A (en) * 1995-10-06 1998-05-19 Advanced Micro Devices, Inc. Out-of-order load/store execution control
US5751946A (en) * 1996-01-18 1998-05-12 International Business Machines Corporation Method and system for detecting bypass error conditions in a load/store unit of a superscalar processor
US6047367A (en) * 1998-01-20 2000-04-04 International Business Machines Corporation Microprocessor with improved out of order support

Also Published As

Publication number Publication date
JP3096451B2 (ja) 2000-10-10
JPH10320198A (ja) 1998-12-04
ATE242509T1 (de) 2003-06-15
EP0871109A2 (en) 1998-10-14
CN1195809A (zh) 1998-10-14
DE69815201D1 (de) 2003-07-10
BR9801230A (pt) 1999-04-27
MY121300A (en) 2006-01-28
KR19980079702A (ko) 1998-11-25
KR100303673B1 (ko) 2001-09-24
IL123426A (en) 2001-04-30
EP0871109B1 (en) 2003-06-04
IL123426A0 (en) 1998-09-24
US6021485A (en) 2000-02-01
EP0871109A3 (en) 2000-12-06
CN1095117C (zh) 2002-11-27

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