JPS5563442A - Address set control system - Google Patents

Address set control system

Info

Publication number
JPS5563442A
JPS5563442A JP13689378A JP13689378A JPS5563442A JP S5563442 A JPS5563442 A JP S5563442A JP 13689378 A JP13689378 A JP 13689378A JP 13689378 A JP13689378 A JP 13689378A JP S5563442 A JPS5563442 A JP S5563442A
Authority
JP
Japan
Prior art keywords
address
register
logical page
lower rank
page
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
JP13689378A
Other languages
Japanese (ja)
Inventor
Toshio Takahashi
Nobuyuki Baba
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 JP13689378A priority Critical patent/JPS5563442A/en
Publication of JPS5563442A publication Critical patent/JPS5563442A/en
Pending legal-status Critical Current

Links

Landscapes

  • Executing Machine-Instructions (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE: To reduce the execution time required for the address set processing, by performing the both of the lower rank address set and upper rank address set, only when the logical page address is altered, in the computer of the virtual memory system in which the bus width is less than the address width.
CONSTITUTION: The lower rank part corresponding to the bus width of the logical address is set to the operation register 1, this and the relative address in the operation register 2 are operated in the operation processing unit 3 and whether or not the result gives effect on the logical page address is discriminated with the AND circuits 13 and 14. If the discrimination is negative, the AND circuit 13 is open and the contents of the upper rank address register 6 is inputted to the address conversion set 8 with the logical page part in the lower rank address register 7. Further, the logical page address is converted into the real page address, and it is set to the real address register 9 with the address in the page in the lower rank address register 7.
COPYRIGHT: (C)1980,JPO&Japio
JP13689378A 1978-11-07 1978-11-07 Address set control system Pending JPS5563442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13689378A JPS5563442A (en) 1978-11-07 1978-11-07 Address set control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13689378A JPS5563442A (en) 1978-11-07 1978-11-07 Address set control system

Publications (1)

Publication Number Publication Date
JPS5563442A true JPS5563442A (en) 1980-05-13

Family

ID=15186010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13689378A Pending JPS5563442A (en) 1978-11-07 1978-11-07 Address set control system

Country Status (1)

Country Link
JP (1) JPS5563442A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833046U (en) * 1981-08-27 1983-03-03 日東電工株式会社 aromatic material
JPS58114246A (en) * 1981-12-28 1983-07-07 Fujitsu Ltd Address qualifying system
JPS63111535A (en) * 1986-10-29 1988-05-16 Nec Corp Data processor
JPH01263750A (en) * 1988-04-13 1989-10-20 Nec Corp Single chip microcomputer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833046U (en) * 1981-08-27 1983-03-03 日東電工株式会社 aromatic material
JPS58114246A (en) * 1981-12-28 1983-07-07 Fujitsu Ltd Address qualifying system
JPS63111535A (en) * 1986-10-29 1988-05-16 Nec Corp Data processor
JPH01263750A (en) * 1988-04-13 1989-10-20 Nec Corp Single chip microcomputer

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