JP5113089B2 - 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ - Google Patents

選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ Download PDF

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JP5113089B2
JP5113089B2 JP2008557471A JP2008557471A JP5113089B2 JP 5113089 B2 JP5113089 B2 JP 5113089B2 JP 2008557471 A JP2008557471 A JP 2008557471A JP 2008557471 A JP2008557471 A JP 2008557471A JP 5113089 B2 JP5113089 B2 JP 5113089B2
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floating point
floating
processor
precision
power
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JP2009528638A (ja
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ドックサー、ケネス・アラン
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Qualcomm Inc
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F7/57—Arithmetic logic units [ALU], i.e. arrangements or devices for performing two or more of the operations covered by groups G06F7/483 – G06F7/556 or for performing logical operations
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F9/30098—Register arrangements
    • G06F9/30105—Register structure
    • G06F9/30112—Register structure comprising data of variable length
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F9/30185—Instruction operation extension or modification according to one or more bits in the instruction, e.g. prefix, sub-opcode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Software Systems (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Advance Control (AREA)
  • Power Sources (AREA)
  • Complex Calculations (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
JP2008557471A 2006-02-27 2007-02-27 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ Expired - Fee Related JP5113089B2 (ja)

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US11/363,118 US8595279B2 (en) 2006-02-27 2006-02-27 Floating-point processor with reduced power requirements for selectable subprecision
US11/363,118 2006-02-27
PCT/US2007/062908 WO2007101216A2 (en) 2006-02-27 2007-02-27 Floating-point processor with reduced power requirements for selectable subprecision

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JP5113089B2 true JP5113089B2 (ja) 2013-01-09

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JP2012130000A Withdrawn JP2012230684A (ja) 2006-02-27 2012-06-07 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ
JP2014258023A Withdrawn JP2015133111A (ja) 2006-02-27 2014-12-19 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ
JP2016206781A Active JP6495220B2 (ja) 2006-02-27 2016-10-21 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ

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JP2014258023A Withdrawn JP2015133111A (ja) 2006-02-27 2014-12-19 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ
JP2016206781A Active JP6495220B2 (ja) 2006-02-27 2016-10-21 選択可能な副精度に対して、低減された電力要求を有する浮動小数点プロセッサ

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US (1) US8595279B2 (enExample)
EP (1) EP1989614A2 (enExample)
JP (4) JP5113089B2 (enExample)
KR (1) KR100994862B1 (enExample)
CN (1) CN101390045B (enExample)
BR (1) BRPI0708284A2 (enExample)
CA (1) CA2641334C (enExample)
MX (1) MX2008010873A (enExample)
RU (1) RU2412462C2 (enExample)
WO (1) WO2007101216A2 (enExample)

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CA2641334C (en) 2015-07-21
MX2008010873A (es) 2008-09-04
US8595279B2 (en) 2013-11-26
CN101390045A (zh) 2009-03-18
US20070203967A1 (en) 2007-08-30
KR20080098440A (ko) 2008-11-07
EP1989614A2 (en) 2008-11-12
CA2641334A1 (en) 2007-09-07
WO2007101216A2 (en) 2007-09-07
JP2017062804A (ja) 2017-03-30
RU2008138564A (ru) 2010-04-10
BRPI0708284A2 (pt) 2011-05-24
WO2007101216A3 (en) 2008-01-03
RU2412462C2 (ru) 2011-02-20
KR100994862B1 (ko) 2010-11-16
JP2012230684A (ja) 2012-11-22
JP2009528638A (ja) 2009-08-06
JP6495220B2 (ja) 2019-04-03
CN101390045B (zh) 2011-12-21
JP2015133111A (ja) 2015-07-23

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