DE3851746D1 - Sprungvorhersage. - Google Patents

Sprungvorhersage.

Info

Publication number
DE3851746D1
DE3851746D1 DE3851746T DE3851746T DE3851746D1 DE 3851746 D1 DE3851746 D1 DE 3851746D1 DE 3851746 T DE3851746 T DE 3851746T DE 3851746 T DE3851746 T DE 3851746T DE 3851746 D1 DE3851746 D1 DE 3851746D1
Authority
DE
Germany
Prior art keywords
jump prediction
jump
prediction
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
DE3851746T
Other languages
English (en)
Other versions
DE3851746T2 (de
Inventor
Steven Ernest Hodges
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.)
Fujitsu Services Ltd
Original Assignee
Fujitsu Services 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
Application filed by Fujitsu Services Ltd filed Critical Fujitsu Services Ltd
Application granted granted Critical
Publication of DE3851746D1 publication Critical patent/DE3851746D1/de
Publication of DE3851746T2 publication Critical patent/DE3851746T2/de
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, look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • G06F9/3844—Speculative instruction execution using dynamic branch prediction, e.g. using branch history tables
    • 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
    • G06F9/3846—Speculative instruction execution using static prediction, e.g. branch taken strategy
DE3851746T 1987-12-05 1988-10-17 Sprungvorhersage. Expired - Fee Related DE3851746T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878728493A GB8728493D0 (en) 1987-12-05 1987-12-05 Jump prediction

Publications (2)

Publication Number Publication Date
DE3851746D1 true DE3851746D1 (de) 1994-11-10
DE3851746T2 DE3851746T2 (de) 1995-05-11

Family

ID=10628058

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3851746T Expired - Fee Related DE3851746T2 (de) 1987-12-05 1988-10-17 Sprungvorhersage.

Country Status (6)

Country Link
US (1) US5121473A (de)
EP (1) EP0320098B1 (de)
AU (1) AU608921B2 (de)
DE (1) DE3851746T2 (de)
GB (1) GB8728493D0 (de)
ZA (1) ZA888749B (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0769811B2 (ja) * 1988-12-21 1995-07-31 松下電器産業株式会社 データ処理装置
US5142634A (en) * 1989-02-03 1992-08-25 Digital Equipment Corporation Branch prediction
JPH02287626A (ja) * 1989-04-28 1990-11-27 Toshiba Corp パイプライン方式の分岐命令制御装置
JP2570859B2 (ja) * 1989-05-25 1997-01-16 日本電気株式会社 データ処理装置
EP0404068A3 (de) * 1989-06-20 1991-12-27 Fujitsu Limited Vorrichtung zur Ausführung eines Verzweigungsbefehls
JPH0650465B2 (ja) * 1989-10-16 1994-06-29 株式会社東芝 分岐制御回路
EP0463973A3 (en) * 1990-06-29 1993-12-01 Digital Equipment Corp Branch prediction in high performance processor
JPH0820950B2 (ja) * 1990-10-09 1996-03-04 インターナショナル・ビジネス・マシーンズ・コーポレイション マルチ予測型分岐予測機構
US5287467A (en) * 1991-04-18 1994-02-15 International Business Machines Corporation Pipeline for removing and concurrently executing two or more branch instructions in synchronization with other instructions executing in the execution unit
JP2773471B2 (ja) * 1991-07-24 1998-07-09 日本電気株式会社 情報処理装置
US5333283A (en) * 1991-10-29 1994-07-26 International Business Machines Corporation Case block table for predicting the outcome of blocks of conditional branches having a common operand
US5434986A (en) * 1992-01-09 1995-07-18 Unisys Corporation Interdependency control of pipelined instruction processor using comparing result of two index registers of skip instruction and next sequential instruction
US5442767A (en) * 1992-10-23 1995-08-15 International Business Machines Corporation Address prediction to avoid address generation interlocks in computer systems
US5379442A (en) * 1993-03-31 1995-01-03 Intel Corporation Fast primary and feedback path in a programmable logic circuit
JPH08106387A (ja) * 1994-10-06 1996-04-23 Oki Electric Ind Co Ltd 命令プリフェッチ回路及びキャッシュ装置
CN1306394C (zh) * 1994-12-02 2007-03-21 现代电子美国公司 有限游程转移预测的方法
GB9504743D0 (en) * 1995-03-09 1995-04-26 Int Computers Ltd Jump prediction
JPH0991136A (ja) * 1995-09-25 1997-04-04 Toshiba Corp 信号処理装置
US5905881A (en) * 1995-11-30 1999-05-18 Unisys Corporation Delayed state writes for an instruction processor
US5887174A (en) * 1996-06-18 1999-03-23 International Business Machines Corporation System, method, and program product for instruction scheduling in the presence of hardware lookahead accomplished by the rescheduling of idle slots
US5867699A (en) * 1996-07-25 1999-02-02 Unisys Corporation Instruction flow control for an instruction processor
EP0848323B1 (de) * 1996-12-10 2004-02-25 Texas Instruments Incorporated Verbesserte Verzweigungsvorhersage in einem Pipelinemikroprozessor
US6044222A (en) * 1997-06-23 2000-03-28 International Business Machines Corporation System, method, and program product for loop instruction scheduling hardware lookahead
SE510295C2 (sv) * 1997-07-21 1999-05-10 Ericsson Telefon Ab L M Metod vid processor för att hantera villkorade hoppinstruktioner samt processor anpassad att verka enligt den angivna metoden
US6151672A (en) 1998-02-23 2000-11-21 Hewlett-Packard Company Methods and apparatus for reducing interference in a branch history table of a microprocessor
EP0953898A3 (de) 1998-04-28 2003-03-26 Matsushita Electric Industrial Co., Ltd. Prozessor zur Ausführung von Befehlen aus dem Speicher mittels eines Programmzählers und Kompiler, Assembler, Programmverbinder und Fehlerbeseitiger für einen solchen Prozessor
SE513431C2 (sv) 1999-01-11 2000-09-11 Ericsson Telefon Ab L M Buffert för icke-rapporterade hopp
US20080222392A1 (en) * 2007-03-09 2008-09-11 On Demand Microelectronics Method and arrangements for pipeline processing of instructions
JP7351421B2 (ja) 2020-03-17 2023-09-27 日本電気株式会社 処理装置、セキュリティ制御方法、及び制御プログラム

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3559183A (en) * 1968-02-29 1971-01-26 Ibm Instruction sequence control
US4200927A (en) * 1978-01-03 1980-04-29 International Business Machines Corporation Multi-instruction stream branch processing mechanism
JPS6047617B2 (ja) * 1980-03-27 1985-10-22 日本電気株式会社 情報処理装置
US4373180A (en) * 1980-07-09 1983-02-08 Sperry Corporation Microprogrammed control system capable of pipelining even when executing a conditional branch instruction
US4390946A (en) * 1980-10-20 1983-06-28 Control Data Corporation Lookahead addressing in a pipeline computer control store with separate memory segments for single and multiple microcode instruction sequences
US4370711A (en) * 1980-10-21 1983-01-25 Control Data Corporation Branch predictor using random access memory
US4430706A (en) * 1980-10-27 1984-02-07 Burroughs Corporation Branch prediction apparatus and method for a data processing system
US4435756A (en) * 1981-12-03 1984-03-06 Burroughs Corporation Branch predicting computer
US4477872A (en) * 1982-01-15 1984-10-16 International Business Machines Corporation Decode history table for conditional branch instructions
US4604691A (en) * 1982-09-07 1986-08-05 Nippon Electric Co., Ltd. Data processing system having branch instruction prefetching performance
US4594659A (en) * 1982-10-13 1986-06-10 Honeywell Information Systems Inc. Method and apparatus for prefetching instructions for a central execution pipeline unit
EP0109655B1 (de) * 1982-11-17 1991-07-24 Nec Corporation Anordnung zum Vorabholen von Befehlen mit Vorhersage einer Verzweigungszieladresse
WO1985000453A1 (en) * 1983-07-11 1985-01-31 Prime Computer, Inc. Data processing system
US4764861A (en) * 1984-02-08 1988-08-16 Nec Corporation Instruction fpefetching device with prediction of a branch destination for each branch count instruction
JPH0769818B2 (ja) * 1984-10-31 1995-07-31 株式会社日立製作所 デ−タ処理装置
US4679141A (en) * 1985-04-29 1987-07-07 International Business Machines Corporation Pageable branch history table
US4763245A (en) * 1985-10-30 1988-08-09 International Business Machines Corporation Branch prediction mechanism in which a branch history table is updated using an operand sensitive branch table
DE3752100T2 (de) * 1986-01-07 1997-12-11 Nec Corp Befehlsvorabrufgerät mit einer Schaltung zum Prüfen der Vorhersage eines Verzweigungsbefehls vor seiner Ausführung
US4755935A (en) * 1986-01-27 1988-07-05 Schlumberger Technology Corporation Prefetch memory system having next-instruction buffer which stores target tracks of jumps prior to CPU access of instruction
DE3785897T2 (de) * 1986-02-28 1993-09-30 Nec Corp Steuervorrichtung zum vorabruf von befehlen.
GB2188759B (en) * 1986-04-05 1990-09-05 Burr Brown Ltd Data processing with op code early comparison

Also Published As

Publication number Publication date
US5121473A (en) 1992-06-09
DE3851746T2 (de) 1995-05-11
ZA888749B (en) 1989-08-30
EP0320098B1 (de) 1994-10-05
AU608921B2 (en) 1991-04-18
GB8728493D0 (en) 1988-01-13
AU2654388A (en) 1989-06-08
EP0320098A3 (en) 1990-11-07
EP0320098A2 (de) 1989-06-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee