GB2130771B - Incrementer for operating on n-digit operands - Google Patents

Incrementer for operating on n-digit operands

Info

Publication number
GB2130771B
GB2130771B GB08330888A GB8330888A GB2130771B GB 2130771 B GB2130771 B GB 2130771B GB 08330888 A GB08330888 A GB 08330888A GB 8330888 A GB8330888 A GB 8330888A GB 2130771 B GB2130771 B GB 2130771B
Authority
GB
United Kingdom
Prior art keywords
incrementer
operating
digit operands
operands
digit
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.)
Expired
Application number
GB08330888A
Other languages
English (en)
Other versions
GB2130771A (en
GB8330888D0 (en
Inventor
Frederick A Ware
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB8330888D0 publication Critical patent/GB8330888D0/en
Publication of GB2130771A publication Critical patent/GB2130771A/en
Application granted granted Critical
Publication of GB2130771B publication Critical patent/GB2130771B/en
Expired 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
    • G06F7/74—Selecting or encoding within a word the position of one or more bits having a specified value, e.g. most or least significant one or zero detection, priority encoders
    • 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
    • G06F7/50—Adding; Subtracting
    • G06F7/505—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination
    • G06F7/5055—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination in which one operand is a constant, i.e. incrementers or decrementers
    • 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
    • G06F7/50—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 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
    • G06F2207/506—Indexing scheme relating to groups G06F7/506 - G06F7/508
    • G06F2207/5063—2-input gates, i.e. only using 2-input logical gates, e.g. binary carry look-ahead, e.g. Kogge-Stone or Ladner-Fischer adder

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)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • Complex Calculations (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB08330888A 1982-08-23 1983-03-07 Incrementer for operating on n-digit operands Expired GB2130771B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41080782A 1982-08-23 1982-08-23

Publications (3)

Publication Number Publication Date
GB8330888D0 GB8330888D0 (en) 1983-12-29
GB2130771A GB2130771A (en) 1984-06-06
GB2130771B true GB2130771B (en) 1986-02-12

Family

ID=23626312

Family Applications (3)

Application Number Title Priority Date Filing Date
GB08330888A Expired GB2130771B (en) 1982-08-23 1983-03-07 Incrementer for operating on n-digit operands
GB08306208A Expired GB2127187B (en) 1982-08-23 1983-03-07 Circuits for operating on n-digit operands
GB08330889A Expired GB2130774B (en) 1982-08-23 1983-11-18 Circuits for operating on n-digit operands

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB08306208A Expired GB2127187B (en) 1982-08-23 1983-03-07 Circuits for operating on n-digit operands
GB08330889A Expired GB2130774B (en) 1982-08-23 1983-11-18 Circuits for operating on n-digit operands

Country Status (3)

Country Link
JP (6) JPS5957343A (enrdf_load_stackoverflow)
DE (1) DE3326388A1 (enrdf_load_stackoverflow)
GB (3) GB2130771B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055438A (ja) * 1983-09-05 1985-03-30 Matsushita Electric Ind Co Ltd ２入力加算器
JPS6275840A (ja) * 1985-09-30 1987-04-07 Toshiba Corp 桁上げ選択加算器
EP0352549B1 (de) * 1988-07-29 1995-06-07 Siemens Aktiengesellschaft Carry-select-Addierer
US4956802A (en) * 1988-12-14 1990-09-11 Sun Microsystems, Inc. Method and apparatus for a parallel carry generation adder
US5136539A (en) * 1988-12-16 1992-08-04 Intel Corporation Adder with intermediate carry circuit
JPH0651950A (ja) * 1992-07-30 1994-02-25 Mitsubishi Electric Corp 加算回路
US6527748B1 (en) 1998-08-17 2003-03-04 Yutaka Suzuki Method of gastrostomy, and an infection preventive cover, kit or catheter kit, and a gastrostomy catheter kit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078337A (en) * 1958-12-17 1963-02-19 Skiatron Elect & Tele Metering systems
US3138703A (en) * 1959-12-29 1964-06-23 Ibm Full adder
DE1231311B (de) * 1964-11-17 1966-12-29 Siemens Ag Schaltungsanordnung zum Umwerten von Informationen, insbesondere fuer Zeitmultiplex-Fernsprechvermittlungssysteme
US3316393A (en) * 1965-03-25 1967-04-25 Honeywell Inc Conditional sum and/or carry adder
GB1143886A (enrdf_load_stackoverflow) * 1966-10-13
GB1391175A (en) * 1971-08-04 1975-04-16 Cambridge Consultants Lttd Electrical circuit means for use in acoustic emission detecting and or recording apparatus
GB1479939A (en) * 1973-09-25 1977-07-13 Siemens Ag Programme-controlled data switching systems
JPS537349B2 (enrdf_load_stackoverflow) * 1974-03-27 1978-03-16
JPS5446224U (enrdf_load_stackoverflow) * 1977-09-07 1979-03-30
EP0052157A1 (de) * 1980-11-15 1982-05-26 Deutsche ITT Industries GmbH Binärer MOS-Carry-Look-Ahead-Paralleladdierer

Also Published As

Publication number Publication date
JPH0467212B2 (enrdf_load_stackoverflow) 1992-10-27
JPH0366693B2 (enrdf_load_stackoverflow) 1991-10-18
JPH03228120A (ja) 1991-10-09
GB2130774B (en) 1986-02-12
GB2130771A (en) 1984-06-06
JPH03228121A (ja) 1991-10-09
GB8306208D0 (en) 1983-04-13
JPH0450614B2 (enrdf_load_stackoverflow) 1992-08-14
JPH03229320A (ja) 1991-10-11
JPH03228122A (ja) 1991-10-09
JPH0450615B2 (enrdf_load_stackoverflow) 1992-08-14
JPH0467213B2 (enrdf_load_stackoverflow) 1992-10-27
JPS5957343A (ja) 1984-04-02
GB2130774A (en) 1984-06-06
DE3326388A1 (de) 1984-02-23
GB2127187A (en) 1984-04-04
GB2127187B (en) 1986-03-05
JPH03229321A (ja) 1991-10-11
DE3326388C2 (enrdf_load_stackoverflow) 1993-04-01
GB8330888D0 (en) 1983-12-29
GB8330889D0 (en) 1983-12-29
JPH0467211B2 (enrdf_load_stackoverflow) 1992-10-27

Similar Documents

Publication Publication Date Title
US4571456B1 (en) Portable computer
DE3380232D1 (en) Interrupt processor
DE3380884D1 (en) Processor for fast multiplication
AU562479B2 (en) Special instruction processing unit
JPS5760443A (en) Interrupt processor
AU574095B2 (en) Code determination using half-adder based operand comparator
GB8322092D0 (en) Developer
DE3380454D1 (en) Floating-point arithmetic operation system
EP0096333A3 (en) Full adder
GB2131746B (en) Keyboards
GB8326610D0 (en) Computer
AU87453S (en) Computer keyboard
GB8325246D0 (en) Multiprocessor computing system
AU88574S (en) Calculator
EP0104956A3 (en) Keyboard
GB8302641D0 (en) Developer
GB2132801B (en) Keyboard
GB2130771B (en) Incrementer for operating on n-digit operands
GB2120425B (en) Arithmetic control unit
AU2195583A (en) Arithmetic adder circuit
AU550352B2 (en) Executing decimal arithmetic instructions
GB2133189B (en) Microprogram arrangement
GB8319634D0 (en) Keyboards
GB8519131D0 (en) Calculator
EP0411679A3 (en) Computer for reducing the execution time required for branch instructions

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960307