DE69429612D1 - Schreibpuffer für einen superskalaren Mikroprozessor mit Pipeline - Google Patents

Schreibpuffer für einen superskalaren Mikroprozessor mit Pipeline

Info

Publication number
DE69429612D1
DE69429612D1 DE69429612T DE69429612T DE69429612D1 DE 69429612 D1 DE69429612 D1 DE 69429612D1 DE 69429612 T DE69429612 T DE 69429612T DE 69429612 T DE69429612 T DE 69429612T DE 69429612 D1 DE69429612 D1 DE 69429612D1
Authority
DE
Germany
Prior art keywords
write buffer
pipeline microprocessor
superscalar pipeline
superscalar
microprocessor
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 - Lifetime
Application number
DE69429612T
Other languages
English (en)
Other versions
DE69429612T2 (de
Inventor
Mark Bluhm
Garibay, Jr
Marc A Quattromani
Mark W Hervin
Nital Patwa
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.)
Via-Cyrix Inc Richardson Tex Us
Original Assignee
National Semiconductor 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 US08/138,651 external-priority patent/US5740398A/en
Priority claimed from US08/139,596 external-priority patent/US5471598A/en
Priority claimed from US08/138,790 external-priority patent/US6219773B1/en
Priority claimed from US08/138,654 external-priority patent/US5584009A/en
Application filed by National Semiconductor Corp filed Critical National Semiconductor Corp
Publication of DE69429612D1 publication Critical patent/DE69429612D1/de
Application granted granted Critical
Publication of DE69429612T2 publication Critical patent/DE69429612T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3004—Arrangements for executing specific machine instructions to perform operations on memory
    • G06F9/30043—LOAD or STORE instructions; Clear instruction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0844—Multiple simultaneous or quasi-simultaneous cache accessing
    • G06F12/0855—Overlapped cache accessing, e.g. 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
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3005—Arrangements for executing specific machine instructions to perform operations for flow control
    • G06F9/30061—Multi-way branch instructions, e.g. CASE
    • 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
    • G06F9/30181—Instruction operation extension or modification
    • 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
    • G06F9/3802—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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline, 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, 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, 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, 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, look ahead
    • G06F9/3861—Recovery, e.g. branch miss-prediction, exception handling
    • G06F9/3865—Recovery, e.g. branch miss-prediction, exception handling using deferred exception handling, e.g. exception flags
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/04—Addressing variable-length words or parts of words
DE69429612T 1993-10-18 1994-10-17 Schreibpuffer für einen superskalaren Mikroprozessor mit Pipeline Expired - Lifetime DE69429612T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US13959893A 1993-10-18 1993-10-18
US13865293A 1993-10-18 1993-10-18
US08/138,651 US5740398A (en) 1993-10-18 1993-10-18 Program order sequencing of data in a microprocessor with write buffer
US08/139,596 US5471598A (en) 1993-10-18 1993-10-18 Data dependency detection and handling in a microprocessor with write buffer
US08/138,790 US6219773B1 (en) 1993-10-18 1993-10-18 System and method of retiring misaligned write operands from a write buffer
US08/138,654 US5584009A (en) 1993-10-18 1993-10-18 System and method of retiring store data from a write buffer

Publications (2)

Publication Number Publication Date
DE69429612D1 true DE69429612D1 (de) 2002-02-14
DE69429612T2 DE69429612T2 (de) 2002-09-12

Family

ID=27558222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69429612T Expired - Lifetime DE69429612T2 (de) 1993-10-18 1994-10-17 Schreibpuffer für einen superskalaren Mikroprozessor mit Pipeline

Country Status (3)

Country Link
EP (1) EP0651331B1 (de)
JP (1) JP3678443B2 (de)
DE (1) DE69429612T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779577B1 (de) 1993-10-18 2002-05-22 VIA-Cyrix, Inc. Mikroprozessorpipelinesteuerung und Registerübersetzung
US5758178A (en) * 1996-03-01 1998-05-26 Hewlett-Packard Company Miss tracking system and method
US6199152B1 (en) 1996-08-22 2001-03-06 Transmeta Corporation Translated memory protection apparatus for an advanced microprocessor
JP2933027B2 (ja) * 1996-08-30 1999-08-09 日本電気株式会社 複数命令並列発行／実行管理装置
US6011908A (en) * 1996-12-23 2000-01-04 Transmeta Corporation Gated store buffer for an advanced microprocessor
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
US6266747B1 (en) 1998-10-30 2001-07-24 Telefonaktiebolaget Lm Ericsson (Publ) Method for writing data into data storage units
EP1050812A1 (de) 1999-05-03 2000-11-08 STMicroelectronics SA Datenspeicherung im Rechnerspeicher
US6523109B1 (en) 1999-10-25 2003-02-18 Advanced Micro Devices, Inc. Store queue multimatch detection
US6481251B1 (en) 1999-10-25 2002-11-19 Advanced Micro Devices, Inc. Store queue number assignment and tracking
US6968469B1 (en) 2000-06-16 2005-11-22 Transmeta Corporation System and method for preserving internal processor context when the processor is powered down and restoring the internal processor context when processor is restored
US7152155B2 (en) * 2005-02-18 2006-12-19 Qualcomm Incorporated System and method of correcting a branch misprediction
US7376817B2 (en) 2005-08-10 2008-05-20 P.A. Semi, Inc. Partial load/store forward prediction
WO2007046066A1 (en) * 2005-10-19 2007-04-26 Nxp B.V. Cache with high access store bandwidth
JP5003070B2 (ja) * 2006-09-09 2012-08-15 ヤマハ株式会社 デジタル信号処理装置
JP5417879B2 (ja) 2009-02-17 2014-02-19 富士通セミコンダクター株式会社 キャッシュ装置
JP5732953B2 (ja) * 2011-03-24 2015-06-10 日本電気株式会社 ベクトル処理装置、ベクトル処理方法、及び、プログラム
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
US9710268B2 (en) 2014-04-29 2017-07-18 Apple Inc. Reducing latency for pointer chasing loads
US10514925B1 (en) 2016-01-28 2019-12-24 Apple Inc. Load speculation recovery
US10437595B1 (en) 2016-03-15 2019-10-08 Apple Inc. Load/store dependency predictor optimization for replayed loads

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0442690A3 (en) * 1990-02-13 1992-11-19 Hewlett-Packard Company Data cache store buffer for high performance computer

Also Published As

Publication number Publication date
JP3678443B2 (ja) 2005-08-03
JPH07152566A (ja) 1995-06-16
EP0651331A1 (de) 1995-05-03
DE69429612T2 (de) 2002-09-12
EP0651331B1 (de) 2002-01-09

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: VIA-CYRIX, INC., RICHARDSON, TEX., US

8364 No opposition during term of opposition