JPS57212551A - Operation controller - Google Patents

Operation controller

Info

Publication number
JPS57212551A
JPS57212551A JP9877481A JP9877481A JPS57212551A JP S57212551 A JPS57212551 A JP S57212551A JP 9877481 A JP9877481 A JP 9877481A JP 9877481 A JP9877481 A JP 9877481A JP S57212551 A JPS57212551 A JP S57212551A
Authority
JP
Japan
Prior art keywords
register
area
program
values
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.)
Pending
Application number
JP9877481A
Other languages
Japanese (ja)
Inventor
Tomoaki Kawakami
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9877481A priority Critical patent/JPS57212551A/en
Publication of JPS57212551A publication Critical patent/JPS57212551A/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
    • G06F9/46—Multiprogramming arrangements
    • G06F9/461—Saving or restoring of program or task context
    • G06F9/463—Program control block organisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To shorten the program switching time and to simplify the control mechanism, by storing always the latest register values in the program execution into a specific area peculiar to each application program. CONSTITUTION:The final value of a register in a register group 2 is written in a save area 6-2 of a main storage device 4 belonging to an executing program area 5-2 just before the execution time of the instruction (register instruction) which changes the value of this register. Final values of registers where contents are changed are written automatically in the save area 6-2 of the executing program area 5-2 by hardware each time when the register instruction is issued, and thus, values of all hardware registers of the register group 2 for execution, interruption, and termination of programs are always stored in the save area 6-2 belonging to the area 5-2 peculiar to executing or interrupted programs.
JP9877481A 1981-06-25 1981-06-25 Operation controller Pending JPS57212551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9877481A JPS57212551A (en) 1981-06-25 1981-06-25 Operation controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9877481A JPS57212551A (en) 1981-06-25 1981-06-25 Operation controller

Publications (1)

Publication Number Publication Date
JPS57212551A true JPS57212551A (en) 1982-12-27

Family

ID=14228718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9877481A Pending JPS57212551A (en) 1981-06-25 1981-06-25 Operation controller

Country Status (1)

Country Link
JP (1) JPS57212551A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115242A (en) * 1984-07-02 1986-01-23 Toshiba Corp Document picture file device
JPS61221942A (en) * 1985-03-28 1986-10-02 Canon Inc Arithmetic processor
JPH02284235A (en) * 1989-04-26 1990-11-21 Agency Of Ind Science & Technol Register preserving system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115242A (en) * 1984-07-02 1986-01-23 Toshiba Corp Document picture file device
JPS61221942A (en) * 1985-03-28 1986-10-02 Canon Inc Arithmetic processor
JPH02284235A (en) * 1989-04-26 1990-11-21 Agency Of Ind Science & Technol Register preserving system

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