JPS6410338A - Virtual computer controller - Google Patents

Virtual computer controller

Info

Publication number
JPS6410338A
JPS6410338A JP16621187A JP16621187A JPS6410338A JP S6410338 A JPS6410338 A JP S6410338A JP 16621187 A JP16621187 A JP 16621187A JP 16621187 A JP16621187 A JP 16621187A JP S6410338 A JPS6410338 A JP S6410338A
Authority
JP
Japan
Prior art keywords
machine instruction
microprogram
virtual computer
execution mode
information
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.)
Pending
Application number
JP16621187A
Other languages
Japanese (ja)
Inventor
Yasushi Yokoyama
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP16621187A priority Critical patent/JPS6410338A/en
Priority to FR8809009A priority patent/FR2617622B1/en
Publication of JPS6410338A publication Critical patent/JPS6410338A/en
Pending 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
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/3017—Runtime instruction translation, e.g. macros

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)

Abstract

PURPOSE:To simplify a microprogram which realizes a virtual computer system by adding the action switching instruction information to a machine instruction analyzing memory which stores the start address of the microprogram that prescribes the action of each machine instruction based on the working specifications. CONSTITUTION:An execution mode register 4 stores a 1st information to identify whether the instructions carried out by a real computer belong to a real computer execution mode or a virtual computer execution mode. A machine instruction analyzing memory 3 stores a 2nd information which instructs the action switch for each machine instruction as well as the start address on a control memory 11 for a microprogram which prescribes the action of each machine instruction based on the working specifications. In the virtual computer execution mode the start address of the microprogram is qualified on the memory 11 by the 2nd information.
JP16621187A 1987-07-02 1987-07-02 Virtual computer controller Pending JPS6410338A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16621187A JPS6410338A (en) 1987-07-02 1987-07-02 Virtual computer controller
FR8809009A FR2617622B1 (en) 1987-07-02 1988-07-04 CONTROL DEVICE FOR VIRTUAL MACHINE SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16621187A JPS6410338A (en) 1987-07-02 1987-07-02 Virtual computer controller

Publications (1)

Publication Number Publication Date
JPS6410338A true JPS6410338A (en) 1989-01-13

Family

ID=15827161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16621187A Pending JPS6410338A (en) 1987-07-02 1987-07-02 Virtual computer controller

Country Status (2)

Country Link
JP (1) JPS6410338A (en)
FR (1) FR2617622B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344404A (en) * 1964-09-10 1967-09-26 Honeywell Inc Multiple mode data processing system controlled by information bits or special characters
US3374466A (en) * 1965-05-10 1968-03-19 Ibm Data processing system
JPS6057438A (en) * 1983-09-08 1985-04-03 Hitachi Ltd Virtual computer system controller
JPH0731609B2 (en) * 1985-09-18 1995-04-10 日本電気株式会社 VM mode change device

Also Published As

Publication number Publication date
FR2617622B1 (en) 1994-07-08
FR2617622A1 (en) 1989-01-06

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