ITTO20021081A1 - Procedimento e dispositivo per la moltiplicazione in virgola mobile, relativo prodotto informatico. - Google Patents

Procedimento e dispositivo per la moltiplicazione in virgola mobile, relativo prodotto informatico.

Info

Publication number
ITTO20021081A1
ITTO20021081A1 IT001081A ITTO20021081A ITTO20021081A1 IT TO20021081 A1 ITTO20021081 A1 IT TO20021081A1 IT 001081 A IT001081 A IT 001081A IT TO20021081 A ITTO20021081 A IT TO20021081A IT TO20021081 A1 ITTO20021081 A1 IT TO20021081A1
Authority
IT
Italy
Prior art keywords
multiplication
procedure
product
relative
mobile circle
Prior art date
Application number
IT001081A
Other languages
English (en)
Inventor
Francesco Pappalardo
Giuseppe Visalli
Original Assignee
St Microelectronics Srl
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 St Microelectronics Srl filed Critical St Microelectronics Srl
Priority to IT001081A priority Critical patent/ITTO20021081A1/it
Priority to EP03027629A priority patent/EP1429239A3/en
Priority to US10/737,697 priority patent/US7330867B2/en
Publication of ITTO20021081A1 publication Critical patent/ITTO20021081A1/it
Priority to US10/887,225 priority patent/US7398289B2/en

Links

Classifications

    • 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
    • G06F7/487—Multiplying; Dividing
    • G06F7/4876—Multiplying
    • 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
    • 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
    • G06F7/49936—Normalisation mentioned as feature only
    • 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
    • G06F7/49947—Rounding

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
  • Mobile Radio Communication Systems (AREA)
IT001081A 2002-12-13 2002-12-13 Procedimento e dispositivo per la moltiplicazione in virgola mobile, relativo prodotto informatico. ITTO20021081A1 (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT001081A ITTO20021081A1 (it) 2002-12-13 2002-12-13 Procedimento e dispositivo per la moltiplicazione in virgola mobile, relativo prodotto informatico.
EP03027629A EP1429239A3 (en) 2002-12-13 2003-12-02 Floating-point multiplication
US10/737,697 US7330867B2 (en) 2002-12-13 2003-12-15 Method and device for floating-point multiplication, and corresponding computer-program product
US10/887,225 US7398289B2 (en) 2002-12-13 2004-07-08 Method and device for floating-point multiplication, and corresponding computer-program product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001081A ITTO20021081A1 (it) 2002-12-13 2002-12-13 Procedimento e dispositivo per la moltiplicazione in virgola mobile, relativo prodotto informatico.

Publications (1)

Publication Number Publication Date
ITTO20021081A1 true ITTO20021081A1 (it) 2004-06-14

Family

ID=32321458

Family Applications (1)

Application Number Title Priority Date Filing Date
IT001081A ITTO20021081A1 (it) 2002-12-13 2002-12-13 Procedimento e dispositivo per la moltiplicazione in virgola mobile, relativo prodotto informatico.

Country Status (3)

Country Link
US (1) US7330867B2 (it)
EP (1) EP1429239A3 (it)
IT (1) ITTO20021081A1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8433736B2 (en) * 2009-02-27 2013-04-30 George Mason Intellectual Properties, Inc. Scalable Montgomery multiplication architecture
CN105867876A (zh) * 2016-03-28 2016-08-17 武汉芯泰科技有限公司 一种乘加器、乘加器阵列、数字滤波器及乘加计算方法
US11294626B2 (en) * 2018-09-27 2022-04-05 Intel Corporation Floating-point dynamic range expansion
JP2022016795A (ja) * 2020-07-13 2022-01-25 富士通株式会社 情報処理装置、情報処理プログラムおよび情報処理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871578A (en) * 1972-10-10 1975-03-18 Digital Equipment Corp Data processing system for multiplying and intergerizing floating point numbers
US5128889A (en) * 1990-02-22 1992-07-07 Matsushita Electric Industrial Co., Ltd. Floating-point arithmetic apparatus with compensation for mantissa truncation
US6446104B1 (en) * 1999-09-15 2002-09-03 Sun Microsystems, Inc. Double precision floating point multiplier having a 32-bit booth-encoded array multiplier
US7003540B2 (en) * 2001-05-25 2006-02-21 Sun Microsystems, Inc. Floating point multiplier for delimited operands
US7831652B2 (en) * 2001-05-25 2010-11-09 Oracle America, Inc. Floating point multiplier with embedded status information

Also Published As

Publication number Publication date
EP1429239A2 (en) 2004-06-16
US7330867B2 (en) 2008-02-12
US20040181567A1 (en) 2004-09-16
EP1429239A3 (en) 2006-06-14

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