JPS5460528A - Multiple virtual memory control equipment - Google Patents

Multiple virtual memory control equipment

Info

Publication number
JPS5460528A
JPS5460528A JP12682577A JP12682577A JPS5460528A JP S5460528 A JPS5460528 A JP S5460528A JP 12682577 A JP12682577 A JP 12682577A JP 12682577 A JP12682577 A JP 12682577A JP S5460528 A JPS5460528 A JP S5460528A
Authority
JP
Japan
Prior art keywords
virtual space
purge
stack
action
frequencies
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
JP12682577A
Other languages
Japanese (ja)
Other versions
JPS5652387B2 (en
Inventor
Mamoru Hinai
Masahiro Hashimoto
Wataru Horikoshi
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 JP12682577A priority Critical patent/JPS5460528A/en
Publication of JPS5460528A publication Critical patent/JPS5460528A/en
Publication of JPS5652387B2 publication Critical patent/JPS5652387B2/ja
Granted legal-status Critical Current

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  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE: To reduce the overhead caused by the virtual space purge by reducing the frequencies of the cancel action, i.e., the virtual space purge action of the high- speed address conversion device via switching of the unit virtual space.
CONSTITUTION: The number of the virtual space number is set so that it may be an integer-multiplication of the register number forming stack 4. At first, the virtual space of a certain unit which is registered in high-speed address conversion device 7 is purged at one time only when the enlarged integer-multiplied virtual space number is overflowed. After this, the singal is delivered to purge indication line 102 every time four units of new STO (segment table origin address ) are stored in stack 4 to carry out the purge action. Thus, the frequencies of the virtual space purge can be reduced without lowering the effective use of stack 4
COPYRIGHT: (C)1979,JPO&Japio
JP12682577A 1977-10-24 1977-10-24 Multiple virtual memory control equipment Granted JPS5460528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12682577A JPS5460528A (en) 1977-10-24 1977-10-24 Multiple virtual memory control equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12682577A JPS5460528A (en) 1977-10-24 1977-10-24 Multiple virtual memory control equipment

Publications (2)

Publication Number Publication Date
JPS5460528A true JPS5460528A (en) 1979-05-16
JPS5652387B2 JPS5652387B2 (en) 1981-12-11

Family

ID=14944855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12682577A Granted JPS5460528A (en) 1977-10-24 1977-10-24 Multiple virtual memory control equipment

Country Status (1)

Country Link
JP (1) JPS5460528A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644180A (en) * 1979-09-17 1981-04-23 Nec Corp Information retrieval device
JP2010134956A (en) * 2004-02-06 2010-06-17 Intel Corp Address conversion technique in context switching environment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644180A (en) * 1979-09-17 1981-04-23 Nec Corp Information retrieval device
JP2010134956A (en) * 2004-02-06 2010-06-17 Intel Corp Address conversion technique in context switching environment

Also Published As

Publication number Publication date
JPS5652387B2 (en) 1981-12-11

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