JPS54128639A - Control system for cash memory - Google Patents

Control system for cash memory

Info

Publication number
JPS54128639A
JPS54128639A JP3609578A JP3609578A JPS54128639A JP S54128639 A JPS54128639 A JP S54128639A JP 3609578 A JP3609578 A JP 3609578A JP 3609578 A JP3609578 A JP 3609578A JP S54128639 A JPS54128639 A JP S54128639A
Authority
JP
Japan
Prior art keywords
output
cash memory
memory
cash
directory
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
JP3609578A
Other languages
Japanese (ja)
Other versions
JPS5723951B2 (en
Inventor
Takashi Rokutanda
Yoshiyuki Kobayashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3609578A priority Critical patent/JPS54128639A/en
Publication of JPS54128639A publication Critical patent/JPS54128639A/en
Publication of JPS5723951B2 publication Critical patent/JPS5723951B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To perform good efficiency control, by excluding the exisitng and old block with good efficiency, in fetching new blocks from the main memory to the cash memory. CONSTITUTION:In the data processing unit having the cash memory, when CPU performing operation control accesses the main memory, and when the old data already stored in the cash memory is excluded, the control ROM 47 which takes input the output of the comparator comparing the output of the address register with the output of the directory and the directory 42 and further with the initial write signal 81, is provided. Further, the Priority Register 46 which designates the priority of bank constituting the cash memory with the output of ROM 47 is provided and the old data in the cash memory is excluded with the LRU system.
JP3609578A 1978-03-30 1978-03-30 Control system for cash memory Granted JPS54128639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3609578A JPS54128639A (en) 1978-03-30 1978-03-30 Control system for cash memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3609578A JPS54128639A (en) 1978-03-30 1978-03-30 Control system for cash memory

Publications (2)

Publication Number Publication Date
JPS54128639A true JPS54128639A (en) 1979-10-05
JPS5723951B2 JPS5723951B2 (en) 1982-05-21

Family

ID=12460194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3609578A Granted JPS54128639A (en) 1978-03-30 1978-03-30 Control system for cash memory

Country Status (1)

Country Link
JP (1) JPS54128639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114187A (en) * 1980-01-24 1981-09-08 Honeywell Inf Systems Cashe memory using selective clear and lru renewal

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6176248A (en) * 1984-09-20 1986-04-18 Yamazaki Mazak Corp Pallet locking device in pallet changer
JPS61205742U (en) * 1985-06-11 1986-12-25
JPS624546A (en) * 1985-06-27 1987-01-10 Toshiba Mach Co Ltd Pallet changer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114187A (en) * 1980-01-24 1981-09-08 Honeywell Inf Systems Cashe memory using selective clear and lru renewal
JPH0470656B2 (en) * 1980-01-24 1992-11-11 Haneiueru Infuoomeishon Shisutemusu Inc

Also Published As

Publication number Publication date
JPS5723951B2 (en) 1982-05-21

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