JPH04145552A - Cache storage device - Google Patents

Cache storage device

Info

Publication number
JPH04145552A
JPH04145552A JP2268912A JP26891290A JPH04145552A JP H04145552 A JPH04145552 A JP H04145552A JP 2268912 A JP2268912 A JP 2268912A JP 26891290 A JP26891290 A JP 26891290A JP H04145552 A JPH04145552 A JP H04145552A
Authority
JP
Japan
Prior art keywords
array
address
writing
level
write
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
JP2268912A
Other languages
Japanese (ja)
Inventor
Toshiyuki Hattori
Original Assignee
Nec Corp
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 filed Critical Nec Corp
Priority to JP2268912A priority Critical patent/JPH04145552A/en
Publication of JPH04145552A publication Critical patent/JPH04145552A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make reading operations and writing operations simultaneously executable when a read level is not equal to a write level by registering the level obtained by indexing an address array with a write address in a storage buffer.
CONSTITUTION: The need of indexing an address array 1 at the time of writing in data arrays 2 and 3 from a store buffer 8 is eliminated from this cache storage device by simultaneously registering a write level obtained by indexing an address array with the write address to a cache storage when the write address is registered in a store buffer 8 and, at the same time, the storage device is provided with divided data arrays which are obtained by dividing the data arrays 2 and 3 by addresses or levels and can independently make writing/reading operations. Therefore, when the divided data array to be read is different from the divided array to be written, reading operations can be performed simultaneously with writing operations.
COPYRIGHT: (C)1992,JPO&Japio
JP2268912A 1990-10-05 1990-10-05 Cache storage device Pending JPH04145552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2268912A JPH04145552A (en) 1990-10-05 1990-10-05 Cache storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2268912A JPH04145552A (en) 1990-10-05 1990-10-05 Cache storage device

Publications (1)

Publication Number Publication Date
JPH04145552A true JPH04145552A (en) 1992-05-19

Family

ID=17464998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2268912A Pending JPH04145552A (en) 1990-10-05 1990-10-05 Cache storage device

Country Status (1)

Country Link
JP (1) JPH04145552A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04199243A (en) * 1990-11-26 1992-07-20 Nec Corp Cache storage device
JPH04199242A (en) * 1990-11-26 1992-07-20 Nec Corp Cache storage device
US6374334B1 (en) 1994-07-04 2002-04-16 Fujitsu Limited Data processing apparatus with a cache controlling device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5694567A (en) * 1979-12-28 1981-07-31 Fujitsu Ltd Busy control system for buffer memory
JPS59213084A (en) * 1983-05-16 1984-12-01 Fujitsu Ltd Buffer store control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5694567A (en) * 1979-12-28 1981-07-31 Fujitsu Ltd Busy control system for buffer memory
JPS59213084A (en) * 1983-05-16 1984-12-01 Fujitsu Ltd Buffer store control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04199243A (en) * 1990-11-26 1992-07-20 Nec Corp Cache storage device
JPH04199242A (en) * 1990-11-26 1992-07-20 Nec Corp Cache storage device
US6374334B1 (en) 1994-07-04 2002-04-16 Fujitsu Limited Data processing apparatus with a cache controlling device

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