JPS5718074A - Buffer memory device - Google Patents

Buffer memory device

Info

Publication number
JPS5718074A
JPS5718074A JP9220480A JP9220480A JPS5718074A JP S5718074 A JPS5718074 A JP S5718074A JP 9220480 A JP9220480 A JP 9220480A JP 9220480 A JP9220480 A JP 9220480A JP S5718074 A JPS5718074 A JP S5718074A
Authority
JP
Japan
Prior art keywords
block
block location
data
register
bus
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
JP9220480A
Other languages
Japanese (ja)
Other versions
JPS605021B2 (en
Inventor
Masanobu Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55092204A priority Critical patent/JPS605021B2/en
Publication of JPS5718074A publication Critical patent/JPS5718074A/en
Publication of JPS605021B2 publication Critical patent/JPS605021B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/12—Replacement control

Abstract

PURPOSE:To simplify the sweep-out block determining means at new data registration, by setting the block location to the lowest priority with a block data at ineffective state. CONSTITUTION:A bus 103 includes address information indicating the block location to be ineffective and the data to the block location and they are set to a register 11. The block location information is inputted to an effective bit control circuit 13 with a bus 204 and set to a register 20 via a selection circuit 19. In a memory 14, the input data to the block location of the bus 204 is produced at the control circuit 13 for write-in processing, and the effective bit of the designated block location is reset. An LRU memory control circuit 22 produces the data to set the block to the lowest priority with the content of the register 20 for the renewal processing of the memory 23.
JP55092204A 1980-07-08 1980-07-08 buffer memory device Expired JPS605021B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55092204A JPS605021B2 (en) 1980-07-08 1980-07-08 buffer memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55092204A JPS605021B2 (en) 1980-07-08 1980-07-08 buffer memory device

Publications (2)

Publication Number Publication Date
JPS5718074A true JPS5718074A (en) 1982-01-29
JPS605021B2 JPS605021B2 (en) 1985-02-07

Family

ID=14047911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55092204A Expired JPS605021B2 (en) 1980-07-08 1980-07-08 buffer memory device

Country Status (1)

Country Link
JP (1) JPS605021B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140686A (en) * 1983-01-31 1984-08-13 Fujitsu Ltd Control system of buffer memory
JPS6043758A (en) * 1983-08-20 1985-03-08 Hitachi Ltd Replace control system of buffer storage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140686A (en) * 1983-01-31 1984-08-13 Fujitsu Ltd Control system of buffer memory
JPS6043758A (en) * 1983-08-20 1985-03-08 Hitachi Ltd Replace control system of buffer storage
JPH0313616B2 (en) * 1983-08-20 1991-02-22 Hitachi Ltd

Also Published As

Publication number Publication date
JPS605021B2 (en) 1985-02-07

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