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JPS6426253A - Cache control circuit - Google Patents

Cache control circuit

Info

Publication number
JPS6426253A
JPS6426253A JP63099337A JP9933788A JPS6426253A JP S6426253 A JPS6426253 A JP S6426253A JP 63099337 A JP63099337 A JP 63099337A JP 9933788 A JP9933788 A JP 9933788A JP S6426253 A JPS6426253 A JP S6426253A
Authority
JP
Japan
Prior art keywords
unit
address
central processing
cache memory
processing unit
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
JP63099337A
Other languages
Japanese (ja)
Inventor
Sadanobu Ikeda
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
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 JP63099337A priority Critical patent/JPS6426253A/en
Publication of JPS6426253A publication Critical patent/JPS6426253A/en
Pending legal-status Critical Current

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  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To shorten a read access time for a cache memory and to guarantee the highly speedy performance of a central processing unit by starting a reading operation for a data memory means regardless of a hit signal and a mis-match signal. CONSTITUTION:At the time of executing a read cycle, when a central processing unit 11 converts a logical address to a physical address in an address converting unit 13, the operation of a cache memory unit 14 is precedingly executed without waiting for deciding whether the said physical address exists or not in an address converting buffer in the address converting unit 13. Thus, the read cycle of the central processing unit 11 can be shortened up to the shortest access time of the cache memory unit 14.
JP63099337A 1987-04-23 1988-04-23 Cache control circuit Pending JPS6426253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63099337A JPS6426253A (en) 1987-04-23 1988-04-23 Cache control circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9856487 1987-04-23
JP63099337A JPS6426253A (en) 1987-04-23 1988-04-23 Cache control circuit

Publications (1)

Publication Number Publication Date
JPS6426253A true JPS6426253A (en) 1989-01-27

Family

ID=26439707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63099337A Pending JPS6426253A (en) 1987-04-23 1988-04-23 Cache control circuit

Country Status (1)

Country Link
JP (1) JPS6426253A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS623354A (en) * 1985-06-28 1987-01-09 Yokogawa Hewlett Packard Ltd Cache memory access system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS623354A (en) * 1985-06-28 1987-01-09 Yokogawa Hewlett Packard Ltd Cache memory access system

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