IT1115735B - Dispositivo moltiplicatore-accumulatore - Google Patents

Dispositivo moltiplicatore-accumulatore

Info

Publication number
IT1115735B
IT1115735B IT28586/77A IT2858677A IT1115735B IT 1115735 B IT1115735 B IT 1115735B IT 28586/77 A IT28586/77 A IT 28586/77A IT 2858677 A IT2858677 A IT 2858677A IT 1115735 B IT1115735 B IT 1115735B
Authority
IT
Italy
Prior art keywords
multiplier
accumulator device
accumulator
Prior art date
Application number
IT28586/77A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1115735B publication Critical patent/IT1115735B/it

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
    • 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
    • G06F7/50—Adding; Subtracting
    • G06F7/505—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination
    • G06F7/509—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination for multiple operands, e.g. digital integrators
    • G06F7/5095—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination for multiple operands, e.g. digital integrators word-serial, i.e. with an accumulator-register
    • 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
    • G06F7/544—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 for evaluating functions by calculation
    • G06F7/5443—Sum of products
    • 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
    • G06F2207/3808—Details concerning the type of numbers or the way they are handled
    • G06F2207/3856—Operand swapping

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
IT28586/77A 1976-11-12 1977-10-14 Dispositivo moltiplicatore-accumulatore IT1115735B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7634820A FR2371014A1 (fr) 1976-11-12 1976-11-12 Dispositif multiplicateur-accumulateur

Publications (1)

Publication Number Publication Date
IT1115735B true IT1115735B (it) 1986-02-03

Family

ID=9180067

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28586/77A IT1115735B (it) 1976-11-12 1977-10-14 Dispositivo moltiplicatore-accumulatore

Country Status (6)

Country Link
US (1) US4142242A (it)
JP (1) JPS5386134A (it)
DE (1) DE2750212A1 (it)
FR (1) FR2371014A1 (it)
GB (1) GB1537810A (it)
IT (1) IT1115735B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141753A (en) * 1981-02-25 1982-09-02 Nec Corp Multiplication circuit
GB2108736B (en) * 1981-10-27 1984-12-12 Standard Telephones Cables Ltd Sum of products multiplier
FR2549622B1 (fr) * 1983-07-22 1985-10-04 Thomson Csf Cellule et circuit de calcul a architecture systolique utilisant de telles cellules
JPS61241830A (ja) * 1985-04-19 1986-10-28 Hitachi Ltd 乗算累積器
US4884232A (en) * 1987-12-14 1989-11-28 General Dynamics Corp., Pomona Div. Parallel processing circuits for high speed calculation of the dot product of large dimensional vectors
EP0333884B1 (de) * 1988-03-19 1994-06-08 Deutsche ITT Industries GmbH CMOS-Parallel-Serien-Multiplizierschaltung sowie deren Multiplizier- und Addierstufen
CA1311063C (en) * 1988-12-16 1992-12-01 Tokumichi Murakami Digital signal processor
US5475631A (en) * 1989-03-09 1995-12-12 Micron Technology, Inc. Multiport RAM based multiprocessor
US5301341A (en) * 1990-11-28 1994-04-05 International Business Machines Corporation Overflow determination for three-operand alus in a scalable compound instruction set machine which compounds two arithmetic instructions
US6427159B1 (en) 1999-08-03 2002-07-30 Koninklijke Philips Electronics N.V. Arithmetic unit, digital signal processor, method of scheduling multiplication in an arithmetic unit, method of selectively delaying adding and method of selectively adding during a first or second clock cycle
JP3930513B2 (ja) * 2003-05-21 2007-06-13 富士通株式会社 多数決論理回路を有するフリップフロップ回路

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311739A (en) * 1963-01-10 1967-03-28 Ibm Accumulative multiplier

Also Published As

Publication number Publication date
DE2750212A1 (de) 1978-05-18
GB1537810A (en) 1979-01-04
JPS5522824B2 (it) 1980-06-19
US4142242A (en) 1979-02-27
FR2371014A1 (fr) 1978-06-09
JPS5386134A (en) 1978-07-29
FR2371014B1 (it) 1979-03-02

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