JPS6011927A - １０進乗算装置 - Google Patents

１０進乗算装置

Info

Publication number
JPS6011927A
JPS6011927A JP58119556A JP11955683A JPS6011927A JP S6011927 A JPS6011927 A JP S6011927A JP 58119556 A JP58119556 A JP 58119556A JP 11955683 A JP11955683 A JP 11955683A JP S6011927 A JPS6011927 A JP S6011927A
Authority
JP
Japan
Prior art keywords
carry
decimal
digit
output
circuit
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.)
Granted
Application number
JP58119556A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0234054B2 (en, 2012
Inventor
Toru Otsuki
大築　徹
Yoshio Oshima
大島　喜男
Suketaka Ishikawa
石川　佐孝
Hideaki Yabe
矢部　英明
Masaharu Fukuda
福田　雅晴
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP58119556A priority Critical patent/JPS6011927A/ja
Priority to US06/625,131 priority patent/US4677583A/en
Priority to DE19843424078 priority patent/DE3424078A1/de
Publication of JPS6011927A publication Critical patent/JPS6011927A/ja
Publication of JPH0234054B2 publication Critical patent/JPH0234054B2/ja
Granted legal-status Critical Current

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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/4915—Multiplying; Dividing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
JP58119556A 1983-07-01 1983-07-01 １０進乗算装置 Granted JPS6011927A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP58119556A JPS6011927A (ja) 1983-07-01 1983-07-01 １０進乗算装置
US06/625,131 US4677583A (en) 1983-07-01 1984-06-27 Apparatus for decimal multiplication
DE19843424078 DE3424078A1 (de) 1983-07-01 1984-06-29 Dezimalmultiplikations-einrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58119556A JPS6011927A (ja) 1983-07-01 1983-07-01 １０進乗算装置

Publications (2)

Publication Number Publication Date
JPS6011927A true JPS6011927A (ja) 1985-01-22
JPH0234054B2 JPH0234054B2 (en, 2012) 1990-08-01

Family

ID=14764235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58119556A Granted JPS6011927A (ja) 1983-07-01 1983-07-01 １０進乗算装置

Country Status (3)

Country Link
US (1) US4677583A (en, 2012)
JP (1) JPS6011927A (en, 2012)
DE (1) DE3424078A1 (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6488629A (en) * 1987-09-29 1989-04-03 Nec Corp Decimal adder

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140429A (ja) * 1983-12-28 1985-07-25 Hitachi Ltd １０進乗算装置
US4947364A (en) * 1985-10-23 1990-08-07 Hewlett-Packard Company Method in a computing system for performing a multiplication
DE3608914A1 (de) * 1986-03-18 1987-10-01 Thomson Brandt Gmbh Verfahren zur korrektur
US7546328B2 (en) * 2004-08-31 2009-06-09 Wisconsin Alumni Research Foundation Decimal floating-point adder
US7743084B2 (en) * 2004-09-23 2010-06-22 Wisconsin Alumni Research Foundation Processing unit having multioperand decimal addition
US7475104B2 (en) 2005-02-09 2009-01-06 International Business Machines Corporation System and method for providing a double adder for decimal floating point operations
US7519647B2 (en) * 2005-02-09 2009-04-14 International Business Machines Corporation System and method for providing a decimal multiply algorithm using a double adder
US8577952B2 (en) * 2008-12-08 2013-11-05 International Business Machines Corporation Combined binary/decimal fixed-point multiplier and method
US8566385B2 (en) * 2009-12-02 2013-10-22 International Business Machines Corporation Decimal floating point multiplier and design structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172446A (en) * 1980-12-24 1982-10-23 Honeywell Inf Systems Information processor using unit digit carrying device and ten digit carrying device supporting decimal multiplication

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1549590A1 (de) * 1966-10-04 1971-03-18 Zentralen Inst Iztschislitelna Multiplikationsschaltung,insbesondere fuer elektronische Tischrechner
US3958112A (en) * 1975-05-09 1976-05-18 Honeywell Information Systems, Inc. Current mode binary/bcd arithmetic array
DE2952229A1 (de) * 1979-01-03 1980-07-17 Honeywell Inf Systems Verfahren und einrichtung zur multiplikation von dezimalzahlen in einer dv-anlage
JPS58129653A (ja) * 1982-01-29 1983-08-02 Hitachi Ltd 乗算方式

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172446A (en) * 1980-12-24 1982-10-23 Honeywell Inf Systems Information processor using unit digit carrying device and ten digit carrying device supporting decimal multiplication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6488629A (en) * 1987-09-29 1989-04-03 Nec Corp Decimal adder

Also Published As

Publication number Publication date
JPH0234054B2 (en, 2012) 1990-08-01
DE3424078C2 (en, 2012) 1989-06-29
US4677583A (en) 1987-06-30
DE3424078A1 (de) 1985-01-10

Similar Documents

Publication Publication Date Title
EP0890899B1 (en) Multiplication method and apparatus
JP3479438B2 (ja) 乗算回路
US7831650B2 (en) Method for modular multiplication
JPS6011927A (ja) １０進乗算装置
US7827226B2 (en) Hybrid arithmetic logic unit
JPH07271556A (ja) 電子乗算および加算装置および方法
KR920003494B1 (ko) 디지탈 신호처리 시스템에서의 실시간 2's 콤플리멘트코드 숫자의 승산방법 및 회로
US7958180B2 (en) Multiplier engine
US6519621B1 (en) Arithmetic circuit for accumulative operation
JPS60140429A (ja) １０進乗算装置
AU2005256094A1 (en) Division and square root arithmetic unit
US20060253522A1 (en) Large number mutpilication method and device
JP2682142B2 (ja) 乗算装置
JPS58137045A (ja) 並列乗算器
US7472154B2 (en) Multiplication remainder calculator
JPS60247736A (ja) 除算回路
JPH0368415B2 (en, 2012)
JP3074958B2 (ja) 加算機能付きシリアル乗算器
JP2995721B2 (ja) 除算装置および除算方法
TW454144B (en) Method and apparatus for reducing the delay in generating saturation flags in an ALU
JP3261600B2 (ja) 剰余乗算器
JPS60230266A (ja) 演算装置
JP2003223316A (ja) 演算処理装置
JP3851025B2 (ja) 除算回路
CN117608522A (zh) 一种大整数乘法运算方法、装置及设备