JPS5774875A - Address history device - Google Patents

Address history device

Info

Publication number
JPS5774875A
JPS5774875A JP55148150A JP14815080A JPS5774875A JP S5774875 A JPS5774875 A JP S5774875A JP 55148150 A JP55148150 A JP 55148150A JP 14815080 A JP14815080 A JP 14815080A JP S5774875 A JPS5774875 A JP S5774875A
Authority
JP
Japan
Prior art keywords
page
address
history
page address
main storage
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.)
Granted
Application number
JP55148150A
Other languages
Japanese (ja)
Other versions
JPS6049948B2 (en
Inventor
Kunio Nakase
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55148150A priority Critical patent/JPS6049948B2/en
Publication of JPS5774875A publication Critical patent/JPS5774875A/en
Publication of JPS6049948B2 publication Critical patent/JPS6049948B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/12—Replacement control

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To execute an optimum assignment of each page of a main storage device, by providing the means for storing the use history of each page, and also for changing the use history. CONSTITUTION:When a processing device 11 or 11a accesses a main storage device 12, its page address is informed to an address history device 13 through an address path 15. As a result, in the history device 13, both the latest page address and the oldest page address that is not accessed are saved, and also the use sequence is stored. Also, in accordance with the instruction for changing the sequence sent from the processing device 11, this page address is changed to a position of the oldest page address that has been accessed in this use sequence. When such a history device is used, an optimum assignment of each page of the main storage device is executed.
JP55148150A 1980-10-24 1980-10-24 address history device Expired JPS6049948B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55148150A JPS6049948B2 (en) 1980-10-24 1980-10-24 address history device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55148150A JPS6049948B2 (en) 1980-10-24 1980-10-24 address history device

Publications (2)

Publication Number Publication Date
JPS5774875A true JPS5774875A (en) 1982-05-11
JPS6049948B2 JPS6049948B2 (en) 1985-11-06

Family

ID=15446376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55148150A Expired JPS6049948B2 (en) 1980-10-24 1980-10-24 address history device

Country Status (1)

Country Link
JP (1) JPS6049948B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400034A1 (en) 1984-01-03 1985-07-11 Herbert 5000 Köln Kaniut INTERNAL COMBUSTION ENGINE WITH LIGHT BEAM IGNITION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400034A1 (en) 1984-01-03 1985-07-11 Herbert 5000 Köln Kaniut INTERNAL COMBUSTION ENGINE WITH LIGHT BEAM IGNITION

Also Published As

Publication number Publication date
JPS6049948B2 (en) 1985-11-06

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