GB967045A - Arithmetic device - Google Patents

Arithmetic device

Info

Publication number
GB967045A
GB967045A GB10622/63A GB1062263A GB967045A GB 967045 A GB967045 A GB 967045A GB 10622/63 A GB10622/63 A GB 10622/63A GB 1062263 A GB1062263 A GB 1062263A GB 967045 A GB967045 A GB 967045A
Authority
GB
United Kingdom
Prior art keywords
bit
register
borrow
group
bits
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
GB10622/63A
Other languages
English (en)
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.)
Sperry Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB967045A publication Critical patent/GB967045A/en
Expired 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
    • 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
    • G06F2207/3812—Devices capable of handling different types of numbers
    • G06F2207/382—Reconfigurable for different fixed word lengths
    • 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
    • G06F2207/3832—Less usual number representations
    • G06F2207/3836—One's complement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
  • Executing Machine-Instructions (AREA)
GB10622/63A 1962-03-29 1963-03-18 Arithmetic device Expired GB967045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US183462A US3234370A (en) 1962-03-29 1962-03-29 Segmented arithmetic device

Publications (1)

Publication Number Publication Date
GB967045A true GB967045A (en) 1964-08-19

Family

ID=22672891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10622/63A Expired GB967045A (en) 1962-03-29 1963-03-18 Arithmetic device

Country Status (5)

Country Link
US (1) US3234370A (US07653806-20100126-C00004.png)
BE (1) BE629725A (US07653806-20100126-C00004.png)
DE (1) DE1449564C3 (US07653806-20100126-C00004.png)
GB (1) GB967045A (US07653806-20100126-C00004.png)
NL (1) NL290823A (US07653806-20100126-C00004.png)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053146A (US07653806-20100126-C00004.png) * 1963-06-04
US3364472A (en) * 1964-03-06 1968-01-16 Westinghouse Electric Corp Computation unit
GB1426273A (en) * 1973-04-13 1976-02-25 Int Computers Ltd Data processing
US4161784A (en) * 1978-01-05 1979-07-17 Honeywell Information Systems, Inc. Microprogrammable floating point arithmetic unit capable of performing arithmetic operations on long and short operands
US4293907A (en) * 1978-12-29 1981-10-06 Bell Telephone Laboratories, Incorporated Data processing apparatus having op-code extension register
US4519077A (en) * 1982-08-30 1985-05-21 Amin Pravin T Digital processing system with self-test capability
US6643765B1 (en) 1995-08-16 2003-11-04 Microunity Systems Engineering, Inc. Programmable processor with group floating point operations

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB738269A (en) * 1952-04-16 1955-10-12 British Tabulating Mach Co Ltd Improvements in or relating to electronic calculating apparatus
US2936116A (en) * 1952-11-12 1960-05-10 Hnghes Aircraft Company Electronic digital computer
US2913593A (en) * 1954-04-15 1959-11-17 Sperry Rand Corp Half-adder for computers
GB840545A (en) * 1955-06-02 1960-07-06 Kokusai Denshin Denwa Co Ltd Electric borrowing circuit suitable for use in a binary subtractive circuit
US2954178A (en) * 1956-08-10 1960-09-27 Reiners Walter Winding machine with yarn-end finding and tying devices

Also Published As

Publication number Publication date
DE1449564A1 (de) 1969-06-26
DE1449564B2 (de) 1974-09-26
DE1449564C3 (de) 1975-05-07
US3234370A (en) 1966-02-08
BE629725A (US07653806-20100126-C00004.png)
NL290823A (US07653806-20100126-C00004.png)

Similar Documents

Publication Publication Date Title
GB926260A (en) Improved floating point arithmetic circuit
GB1108800A (en) Improvements in or relating to electronic data processing machines
GB890323A (en) Improvements in or relating to electronic data processing apparatus
GB1531919A (en) Arithmetic units
GB1157033A (en) Computing Units
GB815751A (en) Improvements in electric calculators and accumulators therefor
GB1523005A (en) Data processing apparatus
US3678259A (en) Asynchronous logic for determining number of leading zeros in a digital word
GB967045A (en) Arithmetic device
GB1323771A (en) Digital computing apparatus
US3210737A (en) Electronic data processing
US3816734A (en) Apparatus and method for 2{40 s complement subtraction
GB913605A (en) Improvements in or relating to electronic calculating apparatus
GB968546A (en) Electronic data processing apparatus
GB1123619A (en) Divider circuit
GB1238920A (US07653806-20100126-C00004.png)
GB1061545A (en) Arithmetic section
US3937941A (en) Method and apparatus for packed BCD sign arithmetic employing a two's complement binary adder
US3039691A (en) Binary integer divider
GB991734A (en) Improvements in digital calculating devices
GB898594A (en) Improvements in and relating to arithmetic devices
US3244864A (en) Subtraction unit for a digital computer
GB1076207A (en) An electrical system for normalizing and generating the scale factor of a binary number
GB876988A (en) Improvements in or relating to digital computers
US3825736A (en) Calculator with provision for efficiently manipulating factors and terms