GB1457430A - Arithmetic device - Google Patents

Arithmetic device

Info

Publication number
GB1457430A
GB1457430A GB5903773A GB5903773A GB1457430A GB 1457430 A GB1457430 A GB 1457430A GB 5903773 A GB5903773 A GB 5903773A GB 5903773 A GB5903773 A GB 5903773A GB 1457430 A GB1457430 A GB 1457430A
Authority
GB
United Kingdom
Prior art keywords
subtractor
digits
digit
input
carry
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
GB5903773A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1457430A publication Critical patent/GB1457430A/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
    • G06F7/38—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
    • G06F7/495—Adding; Subtracting in digit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Complex Calculations (AREA)
  • Advance Control (AREA)
  • Executing Machine-Instructions (AREA)
GB5903773A 1972-12-27 1973-12-20 Arithmetic device Expired GB1457430A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7217637A NL7217637A (enrdf_load_stackoverflow) 1972-12-27 1972-12-27

Publications (1)

Publication Number Publication Date
GB1457430A true GB1457430A (en) 1976-12-01

Family

ID=19817627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5903773A Expired GB1457430A (en) 1972-12-27 1973-12-20 Arithmetic device

Country Status (4)

Country Link
DE (1) DE2361057C2 (enrdf_load_stackoverflow)
FR (1) FR2212953A5 (enrdf_load_stackoverflow)
GB (1) GB1457430A (enrdf_load_stackoverflow)
NL (1) NL7217637A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR2212953A5 (enrdf_load_stackoverflow) 1974-07-26
DE2361057A1 (de) 1974-07-11
NL7217637A (enrdf_load_stackoverflow) 1974-07-01
DE2361057C2 (de) 1984-07-12

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Legal Events

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