JPS52108745A - Adder circuit - Google Patents

Adder circuit

Info

Publication number
JPS52108745A
JPS52108745A JP2451877A JP2451877A JPS52108745A JP S52108745 A JPS52108745 A JP S52108745A JP 2451877 A JP2451877 A JP 2451877A JP 2451877 A JP2451877 A JP 2451877A JP S52108745 A JPS52108745 A JP S52108745A
Authority
JP
Japan
Prior art keywords
adder circuit
adder
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
JP2451877A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5534454B2 (de
Inventor
Rii Andaason Jiyatsuku
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of JPS52108745A publication Critical patent/JPS52108745A/ja
Publication of JPS5534454B2 publication Critical patent/JPS5534454B2/ja
Granted legal-status Critical Current

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
    • G06F7/506—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages
    • 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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
    • G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
    • G06F7/494—Adding; Subtracting
    • 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
    • G06F7/506—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages
    • G06F7/508—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages using carry look-ahead circuits
    • 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
    • G06F2207/492—Indexing scheme relating to groups G06F7/492 - G06F7/496
    • G06F2207/4921—Single digit adding or subtracting
    • 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
    • G06F2207/492—Indexing scheme relating to groups G06F7/492 - G06F7/496
    • G06F2207/4924—Digit-parallel adding or subtracting

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)
  • Logic Circuits (AREA)
JP2451877A 1976-03-08 1977-03-08 Adder circuit Granted JPS52108745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66446076A 1976-03-08 1976-03-08

Publications (2)

Publication Number Publication Date
JPS52108745A true JPS52108745A (en) 1977-09-12
JPS5534454B2 JPS5534454B2 (de) 1980-09-06

Family

ID=24666056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2451877A Granted JPS52108745A (en) 1976-03-08 1977-03-08 Adder circuit

Country Status (4)

Country Link
JP (1) JPS52108745A (de)
DE (1) DE2708637C3 (de)
FR (1) FR2344071A1 (de)
GB (1) GB1525893A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0525492Y2 (de) * 1987-01-26 1993-06-28
JPH09231055A (ja) * 1996-02-27 1997-09-05 Denso Corp 論理演算回路及びキャリールックアヘッド加算器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112396A (en) * 1957-05-03 1963-11-26 Ibm Arithmetic circuitry
US3711693A (en) * 1971-06-30 1973-01-16 Honeywell Inf Systems Modular bcd and binary arithmetic and logical system

Also Published As

Publication number Publication date
JPS5534454B2 (de) 1980-09-06
FR2344071B1 (de) 1981-10-02
DE2708637A1 (de) 1977-09-15
FR2344071A1 (fr) 1977-10-07
DE2708637C3 (de) 1985-07-18
DE2708637B2 (de) 1980-06-19
GB1525893A (en) 1978-09-20

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