JPS54108539A - Virtual memory control system of information processor - Google Patents

Virtual memory control system of information processor

Info

Publication number
JPS54108539A
JPS54108539A JP1539478A JP1539478A JPS54108539A JP S54108539 A JPS54108539 A JP S54108539A JP 1539478 A JP1539478 A JP 1539478A JP 1539478 A JP1539478 A JP 1539478A JP S54108539 A JPS54108539 A JP S54108539A
Authority
JP
Japan
Prior art keywords
page
register
access
information processor
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.)
Pending
Application number
JP1539478A
Other languages
Japanese (ja)
Inventor
Noboru Okazaki
Masaru Matsunaga
Koichi Kunimasa
Kenzo Iioka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1539478A priority Critical patent/JPS54108539A/en
Publication of JPS54108539A publication Critical patent/JPS54108539A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve the capacity of an information processor by making a page alignment with a page with a small number of times of access.
CONSTITUTION: In case that associative registers 13 have all been stored, a resistor is substituted with register 13 which was referred to in the oldest time and the contents of memory-access time register 11 equivalent to the substituted register 13 are added to memory-access summing register 9 of the corresponding page via signal line 106. Since the contents of register 9 of each page can be referred to by software via signal line 107 at every time when page ejection is required through the repetitive operation mentioned above, a page of the lowest frequency in memory access among pages can be taken as a page-ejection object, so that the entire capacity will improve.
COPYRIGHT: (C)1979,JPO&Japio
JP1539478A 1978-02-15 1978-02-15 Virtual memory control system of information processor Pending JPS54108539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1539478A JPS54108539A (en) 1978-02-15 1978-02-15 Virtual memory control system of information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1539478A JPS54108539A (en) 1978-02-15 1978-02-15 Virtual memory control system of information processor

Publications (1)

Publication Number Publication Date
JPS54108539A true JPS54108539A (en) 1979-08-25

Family

ID=11887508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1539478A Pending JPS54108539A (en) 1978-02-15 1978-02-15 Virtual memory control system of information processor

Country Status (1)

Country Link
JP (1) JPS54108539A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232036A (en) * 1990-02-07 1991-10-16 Nec Corp Cache controller
JPH04120480U (en) * 1991-04-08 1992-10-28 一也 深澤 fishing float
JPH07129463A (en) * 1993-11-02 1995-05-19 Nec Corp Memory address space expanding device
JPH07287671A (en) * 1994-04-20 1995-10-31 Kofu Nippon Denki Kk Replacement circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232036A (en) * 1990-02-07 1991-10-16 Nec Corp Cache controller
JPH04120480U (en) * 1991-04-08 1992-10-28 一也 深澤 fishing float
JPH07129463A (en) * 1993-11-02 1995-05-19 Nec Corp Memory address space expanding device
JPH07287671A (en) * 1994-04-20 1995-10-31 Kofu Nippon Denki Kk Replacement circuit

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