JPS6425259A - Method for controlling extension virtual - Google Patents

Method for controlling extension virtual

Info

Publication number
JPS6425259A
JPS6425259A JP62181365A JP18136587A JPS6425259A JP S6425259 A JPS6425259 A JP S6425259A JP 62181365 A JP62181365 A JP 62181365A JP 18136587 A JP18136587 A JP 18136587A JP S6425259 A JPS6425259 A JP S6425259A
Authority
JP
Japan
Prior art keywords
mode
memory space
virtual extension
address
spatial
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
JP62181365A
Other languages
Japanese (ja)
Other versions
JPH0679288B2 (en
Inventor
Masahiro Ikeda
Nobuyoshi Sato
Tadahide Komatsu
Mitsuo Sakurai
Ichiro Nakano
Shigenori Koyata
Yoshiro Hirai
Toshiyuki Kitami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62181365A priority Critical patent/JPH0679288B2/en
Publication of JPS6425259A publication Critical patent/JPS6425259A/en
Publication of JPH0679288B2 publication Critical patent/JPH0679288B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Memory System (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To resolve the shortage of a memory space while keeping interchangeability with conventional softwares by adding a virtual extension address and setting a mode to designate the size of an extending memory space. CONSTITUTION:The virtual extension address of an extending memory space is added to the virtual extension address VSA 1 at a logical address 1. A mode to designate the size of an extending memory space is set to a mode register 3. When a first comparator 5 receives a signal to indicate the mode of '0' from the mode register 3, all the bits of a spatial number register 4 and the spatial number from a buffer memory (TLB) 2 for an address conversion are compared, and the compared result is outputted as a TLB fault signal through an OR circuit 7. When the mode of '1' is set, respective first and second comparison circuits 5 and 6 use a first one bit out of the spatial numbers as the virtual extension address.
JP62181365A 1987-07-21 1987-07-21 Extended virtual memory control method Expired - Lifetime JPH0679288B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181365A JPH0679288B2 (en) 1987-07-21 1987-07-21 Extended virtual memory control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181365A JPH0679288B2 (en) 1987-07-21 1987-07-21 Extended virtual memory control method

Publications (2)

Publication Number Publication Date
JPS6425259A true JPS6425259A (en) 1989-01-27
JPH0679288B2 JPH0679288B2 (en) 1994-10-05

Family

ID=16099451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181365A Expired - Lifetime JPH0679288B2 (en) 1987-07-21 1987-07-21 Extended virtual memory control method

Country Status (1)

Country Link
JP (1) JPH0679288B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02236653A (en) * 1989-03-10 1990-09-19 Fujitsu Ltd Multiple virtual memory managing system
JPH03126144A (en) * 1989-10-06 1991-05-29 Bull Sa Method and apparatus for using memory in virtual address type information processing system
JPH03198512A (en) * 1989-12-27 1991-08-29 Mitsubishi Electric Corp High frequency amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02236653A (en) * 1989-03-10 1990-09-19 Fujitsu Ltd Multiple virtual memory managing system
JPH03126144A (en) * 1989-10-06 1991-05-29 Bull Sa Method and apparatus for using memory in virtual address type information processing system
JPH03198512A (en) * 1989-12-27 1991-08-29 Mitsubishi Electric Corp High frequency amplifier

Also Published As

Publication number Publication date
JPH0679288B2 (en) 1994-10-05

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