JPS556669A - Buffer memory unit - Google Patents

Buffer memory unit

Info

Publication number
JPS556669A
JPS556669A JP7956778A JP7956778A JPS556669A JP S556669 A JPS556669 A JP S556669A JP 7956778 A JP7956778 A JP 7956778A JP 7956778 A JP7956778 A JP 7956778A JP S556669 A JPS556669 A JP S556669A
Authority
JP
Japan
Prior art keywords
replacement
information
entry
content
array
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
JP7956778A
Other languages
Japanese (ja)
Other versions
JPS6029419B2 (en
Inventor
Koichi Inoue
Shinichi Kubo
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 JP53079567A priority Critical patent/JPS6029419B2/en
Publication of JPS556669A publication Critical patent/JPS556669A/en
Publication of JPS6029419B2 publication Critical patent/JPS6029419B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To update replacement information by a simple method of increasing the information in an entry position, by providing circuits which determine the entry position for replacement and update the content of a replace information holding part.
CONSTITUTION: The content of the main memory unit is transferred, block by block, onto the buffer memory with several entry positions and at the time of the execution of a process attaining access to this memory, effective bits are provided corresponding to block units transferred to respective entry positions on the buffer and corresponding to entry positions, replacement array 1 is also provided which holds replacement information on the mutual unit of information at each entry position. Further, replacement entry circuit 5 which determines the entry position for replacement on the basis of the content of array 1 and replacement information update processing part 7 which updates the content of array via write register 9 according to the content of array 1 are both provided, and the information is updated with the entry position of the replacement information made higher.
COPYRIGHT: (C)1980,JPO&Japio
JP53079567A 1978-06-30 1978-06-30 buffer memory device Expired JPS6029419B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53079567A JPS6029419B2 (en) 1978-06-30 1978-06-30 buffer memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53079567A JPS6029419B2 (en) 1978-06-30 1978-06-30 buffer memory device

Publications (2)

Publication Number Publication Date
JPS556669A true JPS556669A (en) 1980-01-18
JPS6029419B2 JPS6029419B2 (en) 1985-07-10

Family

ID=13693574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53079567A Expired JPS6029419B2 (en) 1978-06-30 1978-06-30 buffer memory device

Country Status (1)

Country Link
JP (1) JPS6029419B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713703U (en) * 1980-06-30 1982-01-23
JPS59140686A (en) * 1983-01-31 1984-08-13 Fujitsu Ltd Control system of buffer memory
JPS63189474A (en) * 1987-02-03 1988-08-05 Kansai Paint Co Ltd Coating material composition for steel plate
JPH01298014A (en) * 1988-05-25 1989-12-01 Shionogi & Co Ltd Production of flattening agent for coating
US4945088A (en) * 1982-09-21 1990-07-31 Sumitomo Chemical Company, Limited Insecticidal wettable powder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713703U (en) * 1980-06-30 1982-01-23
US4945088A (en) * 1982-09-21 1990-07-31 Sumitomo Chemical Company, Limited Insecticidal wettable powder
JPS59140686A (en) * 1983-01-31 1984-08-13 Fujitsu Ltd Control system of buffer memory
JPS63189474A (en) * 1987-02-03 1988-08-05 Kansai Paint Co Ltd Coating material composition for steel plate
JPH01298014A (en) * 1988-05-25 1989-12-01 Shionogi & Co Ltd Production of flattening agent for coating

Also Published As

Publication number Publication date
JPS6029419B2 (en) 1985-07-10

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