CA1106978A - Methode d'indexation souple et simple pour micro- ordinateurs a memoire morte - Google Patents

Methode d'indexation souple et simple pour micro- ordinateurs a memoire morte

Info

Publication number
CA1106978A
CA1106978A CA296,870A CA296870A CA1106978A CA 1106978 A CA1106978 A CA 1106978A CA 296870 A CA296870 A CA 296870A CA 1106978 A CA1106978 A CA 1106978A
Authority
CA
Canada
Prior art keywords
instruction
data
modification
memory
accessed
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
CA296,870A
Other languages
English (en)
Inventor
Stephen L. Dunik
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.)
IBM Canada Ltd
Original Assignee
IBM Canada 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 IBM Canada Ltd filed Critical IBM Canada Ltd
Priority to CA296,870A priority Critical patent/CA1106978A/fr
Priority to GB7847981A priority patent/GB2014766A/en
Priority to FR7901296A priority patent/FR2417807A1/fr
Priority to DE19792902601 priority patent/DE2902601A1/de
Priority to JP1511479A priority patent/JPS54114944A/ja
Application granted granted Critical
Publication of CA1106978A publication Critical patent/CA1106978A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/262—Arrangements for next microinstruction selection
    • G06F9/268—Microinstruction selection not based on processing results, e.g. interrupt, patch, first cycle store, diagnostic programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F9/30181—Instruction operation extension or modification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F9/30181—Instruction operation extension or modification
    • G06F9/30189—Instruction operation extension or modification according to execution mode, e.g. mode flag
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F9/32—Address formation of the next instruction, e.g. by incrementing the instruction counter
    • G06F9/322—Address formation of the next instruction, e.g. by incrementing the instruction counter for non-sequential address
    • G06F9/328—Address formation of the next instruction, e.g. by incrementing the instruction counter for non-sequential address for runtime instruction patching

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)
CA296,870A 1978-02-15 1978-02-15 Methode d'indexation souple et simple pour micro- ordinateurs a memoire morte Expired CA1106978A (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA296,870A CA1106978A (fr) 1978-02-15 1978-02-15 Methode d'indexation souple et simple pour micro- ordinateurs a memoire morte
GB7847981A GB2014766A (en) 1978-02-15 1978-12-11 Data processing apparatus
FR7901296A FR2417807A1 (fr) 1978-02-15 1979-01-12 Procede et dispositif de modification d'instructions dans un systeme de traitement de donnees
DE19792902601 DE2902601A1 (de) 1978-02-15 1979-01-24 Verfahren und datenverarbeitungsanlage zur durchfuehrung einer befehlsmodifikation
JP1511479A JPS54114944A (en) 1978-02-15 1979-02-14 Method of correcting instruction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA296,870A CA1106978A (fr) 1978-02-15 1978-02-15 Methode d'indexation souple et simple pour micro- ordinateurs a memoire morte

Publications (1)

Publication Number Publication Date
CA1106978A true CA1106978A (fr) 1981-08-11

Family

ID=4110763

Family Applications (1)

Application Number Title Priority Date Filing Date
CA296,870A Expired CA1106978A (fr) 1978-02-15 1978-02-15 Methode d'indexation souple et simple pour micro- ordinateurs a memoire morte

Country Status (5)

Country Link
JP (1) JPS54114944A (fr)
CA (1) CA1106978A (fr)
DE (1) DE2902601A1 (fr)
FR (1) FR2417807A1 (fr)
GB (1) GB2014766A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1153668B (it) * 1982-11-24 1987-01-14 Honeywell Inf Systems Organizzazione di memoria di controllo
JPS62205429A (ja) * 1986-03-06 1987-09-10 Nec Corp マイクロコンピユ−タ

Also Published As

Publication number Publication date
FR2417807A1 (fr) 1979-09-14
DE2902601A1 (de) 1979-08-16
JPS54114944A (en) 1979-09-07
GB2014766A (en) 1979-08-30

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Legal Events

Date Code Title Description
MKEX Expiry