DE68926063T2 - Verfahren und Gerät zur Steuerung von prozessoren mittels Vorhersagen von Ausnahmen bei der gleitkomma-Arithmetik - Google Patents

Verfahren und Gerät zur Steuerung von prozessoren mittels Vorhersagen von Ausnahmen bei der gleitkomma-Arithmetik

Info

Publication number
DE68926063T2
DE68926063T2 DE68926063T DE68926063T DE68926063T2 DE 68926063 T2 DE68926063 T2 DE 68926063T2 DE 68926063 T DE68926063 T DE 68926063T DE 68926063 T DE68926063 T DE 68926063T DE 68926063 T2 DE68926063 T2 DE 68926063T2
Authority
DE
Germany
Prior art keywords
computation
floating point
exception
predicting
indication
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
DE68926063T
Other languages
English (en)
Other versions
DE68926063D1 (de
Inventor
Craig C Hansen
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.)
MIPS Tech LLC
Original Assignee
Graphics Properties Holdings Inc
Silicon Graphics Inc
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 Graphics Properties Holdings Inc, Silicon Graphics Inc filed Critical Graphics Properties Holdings Inc
Publication of DE68926063D1 publication Critical patent/DE68926063D1/de
Application granted granted Critical
Publication of DE68926063T2 publication Critical patent/DE68926063T2/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
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/483—Computations with numbers represented by a non-linear combination of denominational numbers, e.g. rational numbers, logarithmic number system or floating-point numbers
    • 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
    • G06F9/30007—Arrangements for executing specific machine instructions to perform operations on data operands
    • G06F9/3001—Arithmetic instructions
    • G06F9/30014—Arithmetic instructions with variable precision
    • 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
    • G06F9/3861—Recovery, e.g. branch miss-prediction, exception handling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/38—Indexing scheme relating to groups G06F7/38 - G06F7/575
    • G06F2207/3804—Details
    • G06F2207/386—Special constructional features
    • G06F2207/3884—Pipelining
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/499—Denomination or exception handling, e.g. rounding or overflow
    • G06F7/49905—Exception handling
    • G06F7/4991—Overflow or underflow
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/499—Denomination or exception handling, e.g. rounding or overflow
    • G06F7/49942—Significance control
DE68926063T 1988-02-29 1989-02-24 Verfahren und Gerät zur Steuerung von prozessoren mittels Vorhersagen von Ausnahmen bei der gleitkomma-Arithmetik Expired - Lifetime DE68926063T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/161,543 US4879676A (en) 1988-02-29 1988-02-29 Method and apparatus for precise floating point exceptions

Publications (2)

Publication Number Publication Date
DE68926063D1 DE68926063D1 (de) 1996-05-02
DE68926063T2 true DE68926063T2 (de) 1996-11-28

Family

ID=22581611

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68926063T Expired - Lifetime DE68926063T2 (de) 1988-02-29 1989-02-24 Verfahren und Gerät zur Steuerung von prozessoren mittels Vorhersagen von Ausnahmen bei der gleitkomma-Arithmetik

Country Status (8)

Country Link
US (1) US4879676A (de)
EP (1) EP0331372B1 (de)
JP (1) JP3025776B2 (de)
KR (1) KR950003200B1 (de)
AU (1) AU603973B2 (de)
CA (1) CA1295742C (de)
DE (1) DE68926063T2 (de)
IL (1) IL89262A (de)

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JP2925818B2 (ja) * 1991-04-05 1999-07-28 株式会社東芝 並列処理制御装置
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US5257216A (en) * 1992-06-10 1993-10-26 Intel Corporation Floating point safe instruction recognition apparatus
US5559977A (en) * 1992-08-04 1996-09-24 Intel Corporation Method and apparatus for executing floating point (FP) instruction pairs in a pipelined processor by stalling the following FP instructions in an execution stage
US5572235A (en) * 1992-11-02 1996-11-05 The 3Do Company Method and apparatus for processing image data
US5596693A (en) * 1992-11-02 1997-01-21 The 3Do Company Method for controlling a spryte rendering processor
US5481275A (en) 1992-11-02 1996-01-02 The 3Do Company Resolution enhancement for video display using multi-line interpolation
US5838389A (en) * 1992-11-02 1998-11-17 The 3Do Company Apparatus and method for updating a CLUT during horizontal blanking
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JP2847688B2 (ja) * 1993-05-27 1999-01-20 松下電器産業株式会社 プログラム変換装置およびプロセッサ
US5752013A (en) * 1993-06-30 1998-05-12 Intel Corporation Method and apparatus for providing precise fault tracing in a superscalar microprocessor
WO1995016955A1 (en) * 1993-12-15 1995-06-22 Silicon Graphics, Inc. Load latency of zero for floating point load instructions using a load data queue
US5537538A (en) * 1993-12-15 1996-07-16 Silicon Graphics, Inc. Debug mode for a superscalar RISC processor
JP2815236B2 (ja) * 1993-12-15 1998-10-27 シリコン・グラフィックス・インコーポレーテッド スーパースカーラマイクロプロセッサのための命令ディスパッチ方法及びレジスタ競合についてのチェック方法
DE4434895C2 (de) * 1993-12-23 1998-12-24 Hewlett Packard Co Verfahren und Vorrichtung zur Behandlung von Ausnahmebedingungen
TW260765B (de) * 1994-03-31 1995-10-21 Ibm
US5530663A (en) * 1994-11-14 1996-06-25 International Business Machines Corporation Floating point unit for calculating a compound instruction A+B×C in two cycles
US5548545A (en) * 1995-01-19 1996-08-20 Exponential Technology, Inc. Floating point exception prediction for compound operations and variable precision using an intermediate exponent bus
US5812439A (en) * 1995-10-10 1998-09-22 Microunity Systems Engineering, Inc. Technique of incorporating floating point information into processor instructions
US5864703A (en) * 1997-10-09 1999-01-26 Mips Technologies, Inc. Method for providing extended precision in SIMD vector arithmetic operations
US7197625B1 (en) 1997-10-09 2007-03-27 Mips Technologies, Inc. Alignment and ordering of vector elements for single instruction multiple data processing
US6275838B1 (en) 1997-12-03 2001-08-14 Intrinsity, Inc. Method and apparatus for an enhanced floating point unit with graphics and integer capabilities
US6460134B1 (en) 1997-12-03 2002-10-01 Intrinsity, Inc. Method and apparatus for a late pipeline enhanced floating point unit
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US6631392B1 (en) 1999-07-30 2003-10-07 Mips Technologies, Inc. Method and apparatus for predicting floating-point exceptions
US6912559B1 (en) 1999-07-30 2005-06-28 Mips Technologies, Inc. System and method for improving the accuracy of reciprocal square root operations performed by a floating-point unit
US7346643B1 (en) 1999-07-30 2008-03-18 Mips Technologies, Inc. Processor with improved accuracy for multiply-add operations
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US10684852B2 (en) 2017-06-23 2020-06-16 International Business Machines Corporation Employing prefixes to control floating point operations
US10514913B2 (en) 2017-06-23 2019-12-24 International Business Machines Corporation Compiler controls for program regions
US10379851B2 (en) 2017-06-23 2019-08-13 International Business Machines Corporation Fine-grained management of exception enablement of floating point controls
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Also Published As

Publication number Publication date
EP0331372A3 (en) 1990-07-04
IL89262A (en) 1992-08-18
DE68926063D1 (de) 1996-05-02
KR890013553A (ko) 1989-09-23
AU603973B2 (en) 1990-11-29
CA1295742C (en) 1992-02-11
KR950003200B1 (ko) 1995-04-04
JP3025776B2 (ja) 2000-03-27
EP0331372B1 (de) 1996-03-27
US4879676A (en) 1989-11-07
EP0331372A2 (de) 1989-09-06
IL89262A0 (en) 1989-09-10
JPH0210427A (ja) 1990-01-16
AU3076589A (en) 1989-08-31

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Legal Events

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8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MIPS TECHNOLOGIES,INC., MOUNTAIN VIEW,CALIF.,, US