GB1520981A - Data processing - Google Patents

Data processing

Info

Publication number
GB1520981A
GB1520981A GB196376A GB196376A GB1520981A GB 1520981 A GB1520981 A GB 1520981A GB 196376 A GB196376 A GB 196376A GB 196376 A GB196376 A GB 196376A GB 1520981 A GB1520981 A GB 1520981A
Authority
GB
United Kingdom
Prior art keywords
address
memory
register
supplied
instruction
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
GB196376A
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.)
Nixdorf Computer AG
Original Assignee
Nixdorf Computer AG
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 Nixdorf Computer AG filed Critical Nixdorf Computer AG
Publication of GB1520981A publication Critical patent/GB1520981A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/34—Addressing or accessing the instruction operand or the result ; Formation of operand address; Addressing modes
    • G06F9/342—Extension of operand address space
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30145—Instruction analysis, e.g. decoding, instruction word fields
    • G06F9/30149—Instruction analysis, e.g. decoding, instruction word fields of variable length instructions
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30145—Instruction analysis, e.g. decoding, instruction word fields
    • G06F9/3016—Decoding the operand specifier, e.g. specifier format

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Executing Machine-Instructions (AREA)
GB196376A 1975-01-20 1976-01-19 Data processing Expired GB1520981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752502005 DE2502005C2 (de) 1975-01-20 1975-01-20 Schaltungsanordnung zur Zuordnung von Adressen zu Operationen zwecks Ausführung von Befehlen in einer Datenverarbeitungseinrichtung

Publications (1)

Publication Number Publication Date
GB1520981A true GB1520981A (en) 1978-08-09

Family

ID=5936787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB196376A Expired GB1520981A (en) 1975-01-20 1976-01-19 Data processing

Country Status (3)

Country Link
JP (1) JPS5732815B2 (enExample)
DE (1) DE2502005C2 (enExample)
GB (1) GB1520981A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978738A (en) 1997-02-13 1999-11-02 Anthony Brown Severe weather detector and alarm

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1163267A (fr) * 1956-12-12 1958-09-24 Electronique & Automatisme Sa Perfectionnements apportés aux calculatrices numériques
DE1774276A1 (de) * 1968-05-15 1971-07-29 Elektronische Rechenmasch Ind Verfahren zur Adressierung von Mikroprogrammspeichern mit Zwei- oder Mehradressmikrobefehlen
DE2135592A1 (de) * 1971-07-16 1973-02-01 Ibm Deutschland Einrichtung zur fehlererkennung und -korrektur in elektronischen datenverarbeitungssystemen

Also Published As

Publication number Publication date
JPS5197341A (enExample) 1976-08-26
DE2502005C2 (de) 1982-05-13
JPS5732815B2 (enExample) 1982-07-13
DE2502005A1 (de) 1976-07-22

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Legal Events

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