CA1272296C - - Google Patents

Info

Publication number
CA1272296C
CA1272296C CA 511954 CA511954A CA1272296C CA 1272296 C CA1272296 C CA 1272296C CA 511954 CA511954 CA 511954 CA 511954 A CA511954 A CA 511954A CA 1272296 C CA1272296 C CA 1272296C
Authority
CA
Canada
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
CA 511954
Other versions
CA1270573A1 (en
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 filed Critical
Priority to CA000593003A priority Critical patent/CA1272296A/en
Publication of CA1270573A1 publication Critical patent/CA1270573A1/en
Application granted granted Critical
Publication of CA1272296C publication Critical patent/CA1272296C/xx
Granted 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
    • G06F9/3005—Arrangements for executing specific machine instructions to perform operations for flow control
    • G06F9/30069—Instruction skipping instructions, e.g. SKIP
    • 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
    • G06F9/30058—Conditional branch instructions
    • 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
    • G06F9/3836—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
    • 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
    • G06F9/38585—Result writeback, i.e. updating the architectural state or memory with result invalidation, e.g. nullification
CA 511954 1985-06-28 1986-06-19 Bidirectional branch prediction and optimization Granted CA1270573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000593003A CA1272296A (en) 1985-06-28 1989-03-07 Bidirectional branch prediction and optimization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US750,625 1985-06-28
US06/750,625 US4755966A (en) 1985-06-28 1985-06-28 Bidirectional branch prediction and optimization

Publications (2)

Publication Number Publication Date
CA1270573A1 CA1270573A1 (en) 1990-06-19
CA1272296C true CA1272296C (xx) 1990-07-31

Family

ID=25018608

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 511954 Granted CA1270573A1 (en) 1985-06-28 1986-06-19 Bidirectional branch prediction and optimization

Country Status (8)

Country Link
US (2) US4755966A (xx)
EP (2) EP0423906B1 (xx)
JP (1) JP2518616B2 (xx)
KR (1) KR940005817B1 (xx)
CN (1) CN1010618B (xx)
AU (2) AU589977B2 (xx)
CA (1) CA1270573A1 (xx)
DE (2) DE3680722D1 (xx)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5440704A (en) * 1986-08-26 1995-08-08 Mitsubishi Denki Kabushiki Kaisha Data processor having branch predicting function
US5341482A (en) * 1987-03-20 1994-08-23 Digital Equipment Corporation Method for synchronization of arithmetic exceptions in central processing units having pipelined execution units simultaneously executing instructions
US5247627A (en) * 1987-06-05 1993-09-21 Mitsubishi Denki Kabushiki Kaisha Digital signal processor with conditional branch decision unit and storage of conditional branch decision results
US5134561A (en) * 1987-07-20 1992-07-28 International Business Machines Corporation Computer system with logic for writing instruction identifying data into array control lists for precise post-branch recoveries
JPS6488844A (en) * 1987-09-30 1989-04-03 Takeshi Sakamura Data processor
US5155818A (en) * 1988-09-28 1992-10-13 Data General Corporation Unconditional wide branch instruction acceleration
EP0365187A3 (en) * 1988-10-18 1992-04-29 Apollo Computer Inc. Apparatus for selective execution of instructions following a branch instruction
EP0378415A3 (en) * 1989-01-13 1991-09-25 International Business Machines Corporation Multiple instruction dispatch mechanism
US5093908A (en) * 1989-04-17 1992-03-03 International Business Machines Corporation Method and apparatus for executing instructions in a single sequential instruction stream in a main processor and a coprocessor
US5136697A (en) * 1989-06-06 1992-08-04 Advanced Micro Devices, Inc. System for reducing delay for execution subsequent to correctly predicted branch instruction using fetch information stored with each block of instructions in cache
EP0442116A3 (en) * 1990-02-13 1993-03-03 Hewlett-Packard Company Pipeline method and apparatus
US5303377A (en) * 1990-03-27 1994-04-12 North American Philips Corporation Method for compiling computer instructions for increasing instruction cache efficiency
HU216990B (hu) * 1990-05-04 1999-10-28 International Business Machines Corp. Eljárás és számítógépes rendszer utasítások feldolgozására
EP0825529A3 (en) * 1990-05-04 1998-04-29 International Business Machines Corporation System for preparing instructions for instruction parallel processor and system with mechanism for branching in the middle of a compound instruction
US5303356A (en) * 1990-05-04 1994-04-12 International Business Machines Corporation System for issuing instructions for parallel execution subsequent to branch into a group of member instructions with compoundability in dictation tag
JP2845578B2 (ja) * 1990-06-19 1999-01-13 甲府日本電気 株式会社 命令制御方式
US5283873A (en) * 1990-06-29 1994-02-01 Digital Equipment Corporation Next line prediction apparatus for a pipelined computed system
CA2045790A1 (en) * 1990-06-29 1991-12-30 Richard Lee Sites Branch prediction in high-performance processor
JP2834292B2 (ja) * 1990-08-15 1998-12-09 株式会社日立製作所 データ・プロセッサ
JP2508907B2 (ja) * 1990-09-18 1996-06-19 日本電気株式会社 遅延分岐命令の制御方式
JP2534392B2 (ja) * 1990-09-21 1996-09-11 三田工業株式会社 画像形成装置のための自己診断および自己修復システム
US5303355A (en) * 1991-03-27 1994-04-12 Motorola, Inc. Pipelined data processor which conditionally executes a predetermined looping instruction in hardware
US5450585A (en) * 1991-05-15 1995-09-12 International Business Machines Corporation Compiler with delayed conditional branching
JP2875909B2 (ja) * 1991-07-12 1999-03-31 三菱電機株式会社 並列演算処理装置
DE69325826T2 (de) * 1992-01-06 2000-02-24 Hitachi Ltd Rechner mit einer Parallelverarbeitungsfähigkeit
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
JPH06259262A (ja) * 1993-03-08 1994-09-16 Fujitsu Ltd 分岐確率を設定するコンパイラの処理方法および処理装置
US5426600A (en) * 1993-09-27 1995-06-20 Hitachi America, Ltd. Double precision division circuit and method for digital signal processor
JP3452655B2 (ja) * 1993-09-27 2003-09-29 株式会社日立製作所 ディジタル信号処理プロセッサおよびそれを用いて命令を実行する方法
US5815695A (en) * 1993-10-28 1998-09-29 Apple Computer, Inc. Method and apparatus for using condition codes to nullify instructions based on results of previously-executed instructions on a computer processor
TW261676B (xx) * 1993-11-02 1995-11-01 Motorola Inc
US5539888A (en) * 1993-12-23 1996-07-23 Unisys Corporation System and method for processing external conditional branch instructions
US5799180A (en) * 1995-10-31 1998-08-25 Texas Instruments Incorporated Microprocessor circuits, systems, and methods passing intermediate instructions between a short forward conditional branch instruction and target instruction through pipeline, then suppressing results if branch taken
US5905881A (en) * 1995-11-30 1999-05-18 Unisys Corporation Delayed state writes for an instruction processor
US5774709A (en) * 1995-12-06 1998-06-30 Lsi Logic Corporation Enhanced branch delay slot handling with single exception program counter
US5799167A (en) * 1996-05-15 1998-08-25 Hewlett-Packard Company Instruction nullification system and method for a processor that executes instructions out of order
US5796997A (en) * 1996-05-15 1998-08-18 Hewlett-Packard Company Fast nullify system and method for transforming a nullify function into a select function
US5867699A (en) * 1996-07-25 1999-02-02 Unisys Corporation Instruction flow control for an instruction processor
US5974538A (en) * 1997-02-21 1999-10-26 Wilmot, Ii; Richard Byron Method and apparatus for annotating operands in a computer system with source instruction identifiers
US6401196B1 (en) * 1998-06-19 2002-06-04 Motorola, Inc. Data processor system having branch control and method thereof
US6192515B1 (en) * 1998-07-17 2001-02-20 Intel Corporation Method for software pipelining nested loops
US20060168431A1 (en) * 1998-10-14 2006-07-27 Peter Warnes Method and apparatus for jump delay slot control in a pipelined processor
US6862563B1 (en) 1998-10-14 2005-03-01 Arc International Method and apparatus for managing the configuration and functionality of a semiconductor design
JP3470948B2 (ja) * 1999-01-28 2003-11-25 インターナショナル・ビジネス・マシーンズ・コーポレーション 動的コンパイル時期決定方法、バイトコード実行モード選択方法、及びコンピュータ
US6571385B1 (en) * 1999-03-22 2003-05-27 Intel Corporation Early exit transformations for software pipelining
WO2001016702A1 (en) 1999-09-01 2001-03-08 Intel Corporation Register set used in multithreaded parallel processor architecture
CA2383526A1 (en) 1999-09-01 2001-03-15 Intel Corporation Branch instruction for multithreaded processor
US6662360B1 (en) * 1999-09-27 2003-12-09 International Business Machines Corporation Method and system for software control of hardware branch prediction mechanism in a data processor
US6446197B1 (en) * 1999-10-01 2002-09-03 Hitachi, Ltd. Two modes for executing branch instructions of different lengths and use of branch control instruction and register set loaded with target instructions
AU2001243463A1 (en) 2000-03-10 2001-09-24 Arc International Plc Memory interface and method of interfacing between functional entities
US7681018B2 (en) 2000-08-31 2010-03-16 Intel Corporation Method and apparatus for providing large register address space while maximizing cycletime performance for a multi-threaded register file set
DE10101949C1 (de) * 2001-01-17 2002-08-08 Infineon Technologies Ag Datenverarbeitungsverfahren
JP4141112B2 (ja) * 2001-04-12 2008-08-27 株式会社日立製作所 プロセッサおよびプロセッサシステム
US6785804B2 (en) * 2001-05-17 2004-08-31 Broadcom Corporation Use of tags to cancel a conditional branch delay slot instruction
US7437724B2 (en) 2002-04-03 2008-10-14 Intel Corporation Registers for data transfers
US7668622B2 (en) * 2004-03-30 2010-02-23 Honeywell International Inc. Efficient blending based on blending component availablity for a partial blend duration
JP2006011723A (ja) * 2004-06-24 2006-01-12 Matsushita Electric Ind Co Ltd 分岐制御方法、および情報処理装置
US8127113B1 (en) 2006-12-01 2012-02-28 Synopsys, Inc. Generating hardware accelerators and processor offloads
US8683455B1 (en) 2011-01-12 2014-03-25 Google Inc. Method and system for optimizing an executable program by selectively merging identical program entities
US8689200B1 (en) * 2011-01-12 2014-04-01 Google Inc. Method and system for optimizing an executable program by generating special operations for identical program entities
US20170277539A1 (en) * 2016-03-24 2017-09-28 Imagination Technologies Limited Exception handling in processor using branch delay slot instruction set architecture
US10970073B2 (en) 2018-10-02 2021-04-06 International Business Machines Corporation Branch optimization during loading

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789583A (fr) * 1971-10-01 1973-02-01 Sanders Associates Inc Appareil de controle de programme pour machine de traitement del'information
GB1448866A (en) * 1973-04-13 1976-09-08 Int Computers Ltd Microprogrammed data processing systems
JPS52120735A (en) * 1976-04-05 1977-10-11 Agency Of Ind Science & Technol Microporogram control unit
US4378589A (en) * 1976-12-27 1983-03-29 International Business Machines Corporation Undirectional looped bus microcomputer architecture
US4210960A (en) * 1977-09-02 1980-07-01 Sperry Corporation Digital computer with overlapped operation utilizing conditional control to minimize time losses
US4325120A (en) * 1978-12-21 1982-04-13 Intel Corporation Data processing system
SE456051B (sv) * 1980-02-11 1988-08-29 Western Electric Co Digital processoranordning anordnad for pipeline-databehandlingsoperationer
US4539635A (en) * 1980-02-11 1985-09-03 At&T Bell Laboratories Pipelined digital processor arranged for conditional operation
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
US4514804A (en) * 1981-11-25 1985-04-30 Nippon Electric Co., Ltd. Information handling apparatus having a high speed instruction-executing function
WO1985000453A1 (en) * 1983-07-11 1985-01-31 Prime Computer, Inc. Data processing system
US4742454A (en) * 1983-08-30 1988-05-03 Amdahl Corporation Apparatus for buffer control bypass
JPH0754461B2 (ja) * 1985-02-08 1995-06-07 株式会社日立製作所 情報処理装置
CA1254661A (en) * 1985-06-28 1989-05-23 Allen J. Baum Method and means for instruction combination for code compression
JPS6393038A (ja) * 1986-10-07 1988-04-23 Mitsubishi Electric Corp 計算機

Also Published As

Publication number Publication date
EP0423906A3 (en) 1991-08-28
DE3680722D1 (de) 1991-09-12
EP0423906A2 (en) 1991-04-24
EP0423906B1 (en) 1995-10-04
AU5917186A (en) 1987-01-08
DE3650413D1 (de) 1995-11-09
US5051896A (en) 1991-09-24
EP0207665B1 (en) 1991-08-07
KR940005817B1 (ko) 1994-06-23
AU627828B2 (en) 1992-09-03
AU4867090A (en) 1990-05-10
EP0207665A1 (en) 1987-01-07
JP2518616B2 (ja) 1996-07-24
AU589977B2 (en) 1989-10-26
US4755966A (en) 1988-07-05
CN1010618B (zh) 1990-11-28
CN86103708A (zh) 1986-12-24
DE3650413T2 (de) 1996-03-07
KR870000643A (ko) 1987-02-19
CA1270573A1 (en) 1990-06-19
JPS623340A (ja) 1987-01-09

Similar Documents

Publication Publication Date Title
DE3690149T1 (xx)
DE3690444T1 (xx)
DE8513618U1 (xx)
DE8516891U1 (xx)
DE8501273U1 (xx)
DE8526357U1 (xx)
DE8524429U1 (xx)
DE3543891C2 (xx)
AU549439B2 (xx)
BA96126A (xx)
DE8535588U1 (xx)
AU4708385A (xx)
AU4121285A (xx)
AU3954685A (xx)
DE8505953U1 (xx)
DE8505252U1 (xx)
BG45251A1 (xx)
BG44989A1 (xx)
BE902936A (xx)
BE901679A (xx)
BG45436A1 (xx)
BG45386A3 (xx)
BG45384A3 (xx)
BG45260A1 (xx)
BG39572A1 (xx)

Legal Events

Date Code Title Description
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121205