JPS5862746A - 割算装置 - Google Patents

割算装置

Info

Publication number
JPS5862746A
JPS5862746A JP57159719A JP15971982A JPS5862746A JP S5862746 A JPS5862746 A JP S5862746A JP 57159719 A JP57159719 A JP 57159719A JP 15971982 A JP15971982 A JP 15971982A JP S5862746 A JPS5862746 A JP S5862746A
Authority
JP
Japan
Prior art keywords
digit
value
numerator
significant byte
associative memory
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
JP57159719A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6256536B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
ロバ−ト・アラン・イアニユツシ
ジエ−ムズ・レイ・クレインスタイバ−
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS5862746A publication Critical patent/JPS5862746A/ja
Publication of JPS6256536B2 publication Critical patent/JPS6256536B2/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
    • G06F7/52—Multiplying; Dividing
    • G06F7/535—Dividing 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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/4915—Multiplying; Dividing
    • G06F7/4917—Dividing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F2207/535—Indexing scheme relating to groups G06F7/535 - G06F7/5375
    • G06F2207/5353—Restoring division

Landscapes

  • Engineering & Computer Science (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)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Executing Machine-Instructions (AREA)
JP57159719A 1981-09-25 1982-09-16 割算装置 Granted JPS5862746A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/305,765 US4466077A (en) 1981-09-25 1981-09-25 Method and apparatus for division employing associative memory
US305765 1981-09-25

Publications (2)

Publication Number Publication Date
JPS5862746A true JPS5862746A (ja) 1983-04-14
JPS6256536B2 JPS6256536B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-11-26

Family

ID=23182244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57159719A Granted JPS5862746A (ja) 1981-09-25 1982-09-16 割算装置

Country Status (4)

Country Link
US (1) US4466077A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0075745B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5862746A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3277787D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688186A (en) * 1982-10-04 1987-08-18 Honeywell Bull Inc. Division by a constant by iterative table lookup
JPS5987543A (ja) * 1982-11-09 1984-05-21 Hitachi Ltd ２進化１０進数除算方式
JPS60101640A (ja) * 1983-11-07 1985-06-05 Hitachi Ltd １０進除算装置
JPS6211937A (ja) * 1985-07-10 1987-01-20 Hitachi Ltd 高速剰余計算装置
US4817048A (en) * 1986-08-11 1989-03-28 Amdahl Corporation Divider with quotient digit prediction
JPS63245518A (ja) * 1987-03-31 1988-10-12 Toshiba Corp 除算演算装置
JP2609630B2 (ja) * 1987-09-26 1997-05-14 株式会社東芝 除算器及び除算方法
US5046038A (en) * 1989-07-07 1991-09-03 Cyrix Corporation Method and apparatus for performing division using a rectangular aspect ratio multiplier
US5307303A (en) * 1989-07-07 1994-04-26 Cyrix Corporation Method and apparatus for performing division using a rectangular aspect ratio multiplier
US5297073A (en) * 1992-08-19 1994-03-22 Nec Electronics, Inc. Integer divide using shift and subtract
US6735610B1 (en) 1999-04-29 2004-05-11 Walter E. Pelton Apparatus, methods, and computer program products for determining the coefficients of a function with decreased latency
US6604121B1 (en) * 1999-05-07 2003-08-05 Seagate Technology Llc Digital division device and method using a reduced-sized lookup table
US6922712B2 (en) 2000-02-26 2005-07-26 Walter E. Pelton Apparatus, methods, and computer program products for accurately determining the coefficients of a function
WO2001095142A2 (en) 2000-06-09 2001-12-13 Pelton Walter E Methods for reducing the number of computations in a discrete fourier transform
WO2001095090A2 (en) * 2000-06-09 2001-12-13 Pelton Walter E Apparatus, methods and computer program products for performing high speed division calculations
US8510596B1 (en) * 2006-02-09 2013-08-13 Virsec Systems, Inc. System and methods for run time detection and correction of memory corruption
JP5509839B2 (ja) * 2009-12-22 2014-06-04 富士通株式会社 通信装置、受信データ長判定方法、倍数判定回路及び受信データ長判定プログラム
AU2014318585B2 (en) 2013-09-12 2018-01-04 Virsec Systems, Inc. Automated runtime detection of malware
EP3161715A1 (en) 2014-06-24 2017-05-03 Virsec Systems, Inc. System and methods for automated detection of input and output validation and resource management vulnerability
CN107077412B (zh) 2014-06-24 2022-04-08 弗塞克系统公司 单层或n层应用的自动化根本原因分析
US9686382B2 (en) 2014-08-04 2017-06-20 Honeywell International Inc. Double decoder system for decoding overlapping aircraft surveillance signals
WO2017218872A1 (en) 2016-06-16 2017-12-21 Virsec Systems, Inc. Systems and methods for remediating memory corruption in a computer application

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311179A (en) * 1976-07-19 1978-02-01 Hitachi Ltd Fluorescent substance
JPS5578340A (en) * 1978-12-09 1980-06-12 Casio Comput Co Ltd Division system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293418A (en) * 1964-07-08 1966-12-20 Control Data Corp High speed divider
US3641331A (en) * 1969-11-12 1972-02-08 Honeywell Inc Apparatus for performing arithmetic operations on numbers using a multiple generating and storage technique
US3684879A (en) * 1970-09-09 1972-08-15 Sperry Rand Corp Division utilizing multiples of the divisor stored in an addressable memory
US3736413A (en) * 1971-03-15 1973-05-29 Programmatics Inc Pre-conditioned divisor trial quotient divider
US3852581A (en) * 1972-12-14 1974-12-03 Burroughs Corp Two bit binary divider

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311179A (en) * 1976-07-19 1978-02-01 Hitachi Ltd Fluorescent substance
JPS5578340A (en) * 1978-12-09 1980-06-12 Casio Comput Co Ltd Division system

Also Published As

Publication number Publication date
JPS6256536B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-11-26
EP0075745B1 (en) 1987-12-02
DE3277787D1 (en) 1988-01-14
EP0075745A3 (en) 1985-12-18
US4466077A (en) 1984-08-14
EP0075745A2 (en) 1983-04-06

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