FR2386076A1 - COMPUTER MICROPROGRAM MEMORY - Google Patents

COMPUTER MICROPROGRAM MEMORY

Info

Publication number
FR2386076A1
FR2386076A1 FR7808605A FR7808605A FR2386076A1 FR 2386076 A1 FR2386076 A1 FR 2386076A1 FR 7808605 A FR7808605 A FR 7808605A FR 7808605 A FR7808605 A FR 7808605A FR 2386076 A1 FR2386076 A1 FR 2386076A1
Authority
FR
France
Prior art keywords
computer
cycle
data
during
microprogram memory
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.)
Withdrawn
Application number
FR7808605A
Other languages
French (fr)
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.)
EMC Corp
Original Assignee
Data General 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 Data General Corp filed Critical Data General Corp
Publication of FR2386076A1 publication Critical patent/FR2386076A1/en
Withdrawn legal-status Critical Current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
    • G06F9/24—Loading of the microprogram

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)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

L'invention concerne les systèmes informatiques. Une mémoire vive de contrôle 11 peut enregistrer un bloc de mots de micro-instruction en réponse à une seule macro-instruction. Un multiplexeur 15 commande le transfert des données entre la mémoire centrale et la mémoire de contrôle 11, de façon que l'enregistrement des données dans cette dernière ne s'effectue que pendant une moitié donnée du cycle du processeur central, et de façon que la lecture ne s'effectue que pendant l'autre moitié du cycle. Application aux ordinateurs fonctionnant en microprogrammation.The invention relates to computer systems. A control RAM 11 may store a block of microinstruction words in response to a single macroinstruction. A multiplexer 15 controls the transfer of data between the main memory and the control memory 11, so that the recording of the data in the latter takes place only during a given half of the cycle of the central processor, and so that the read only during the other half of the cycle. Application to computers operating in microprogramming.

FR7808605A 1977-03-28 1978-03-24 COMPUTER MICROPROGRAM MEMORY Withdrawn FR2386076A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78229377A 1977-03-28 1977-03-28

Publications (1)

Publication Number Publication Date
FR2386076A1 true FR2386076A1 (en) 1978-10-27

Family

ID=25125602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808605A Withdrawn FR2386076A1 (en) 1977-03-28 1978-03-24 COMPUTER MICROPROGRAM MEMORY

Country Status (7)

Country Link
JP (1) JPS53121525A (en)
AU (1) AU3329178A (en)
BR (1) BR7801804A (en)
DE (1) DE2812982A1 (en)
FR (1) FR2386076A1 (en)
GB (1) GB1575877A (en)
NL (1) NL7802303A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138182B (en) * 1983-04-14 1986-09-24 Standard Telephones Cables Ltd Digital processor
US5581720A (en) * 1994-04-15 1996-12-03 David Sarnoff Research Center, Inc. Apparatus and method for updating information in a microcode instruction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478322A (en) * 1967-05-23 1969-11-11 Ibm Data processor employing electronically changeable control storage
US3792441A (en) * 1972-03-08 1974-02-12 Burroughs Corp Micro-program having an overlay micro-instruction
FR2212603A1 (en) * 1972-12-29 1974-07-26 Burroughs Corp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478322A (en) * 1967-05-23 1969-11-11 Ibm Data processor employing electronically changeable control storage
US3792441A (en) * 1972-03-08 1974-02-12 Burroughs Corp Micro-program having an overlay micro-instruction
FR2212603A1 (en) * 1972-12-29 1974-07-26 Burroughs Corp

Also Published As

Publication number Publication date
DE2812982A1 (en) 1978-10-05
JPS53121525A (en) 1978-10-24
GB1575877A (en) 1980-10-01
BR7801804A (en) 1979-02-13
AU3329178A (en) 1979-08-23
NL7802303A (en) 1978-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse