JPS6433646A - Data processor with cache memory - Google Patents

Data processor with cache memory

Info

Publication number
JPS6433646A
JPS6433646A JP62190849A JP19084987A JPS6433646A JP S6433646 A JPS6433646 A JP S6433646A JP 62190849 A JP62190849 A JP 62190849A JP 19084987 A JP19084987 A JP 19084987A JP S6433646 A JPS6433646 A JP S6433646A
Authority
JP
Japan
Prior art keywords
diagnosis
register means
cache
file register
memory
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
JP62190849A
Other languages
Japanese (ja)
Other versions
JP2696845B2 (en
Inventor
Fumio Ichikawa
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 JP62190849A priority Critical patent/JP2696845B2/en
Publication of JPS6433646A publication Critical patent/JPS6433646A/en
Application granted granted Critical
Publication of JP2696845B2 publication Critical patent/JP2696845B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Debugging And Monitoring (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To avoid deterioration of the processing performance even at the diagnosis of a cache function by using a non-diagnosis instruction resident file register means and a diagnosis instruction resident file register means to carry out a cache diagnosis test with no incorporation for separation and controlling the non-diagnosis and diagnosis instruction resident files independently of each other. CONSTITUTION:A non-diagnosis instruction resident file register means 60 and a diagnosis instruction resident file register means 70 are set into an address of a directory memory 50 corresponding in 1:1 to a file address. Then the memory 50 is checked and the presence or absence of a requested file stored in a cache memory 30 is informed to a data transfer control means 40 when a read/write instruction sent from a host processor is received by a hit/mischeck means 80. In such a constitution, the processing performance of a data processor is never deteriorated even at the diagnosis of a cache function.
JP62190849A 1987-07-29 1987-07-29 Data processor with cache memory Expired - Lifetime JP2696845B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190849A JP2696845B2 (en) 1987-07-29 1987-07-29 Data processor with cache memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190849A JP2696845B2 (en) 1987-07-29 1987-07-29 Data processor with cache memory

Publications (2)

Publication Number Publication Date
JPS6433646A true JPS6433646A (en) 1989-02-03
JP2696845B2 JP2696845B2 (en) 1998-01-14

Family

ID=16264797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190849A Expired - Lifetime JP2696845B2 (en) 1987-07-29 1987-07-29 Data processor with cache memory

Country Status (1)

Country Link
JP (1) JP2696845B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02229880A (en) * 1989-02-08 1990-09-12 Ajinomoto Co Inc Composition for sprayed asbestos removal and removal of sprayed asbestos using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02229880A (en) * 1989-02-08 1990-09-12 Ajinomoto Co Inc Composition for sprayed asbestos removal and removal of sprayed asbestos using same

Also Published As

Publication number Publication date
JP2696845B2 (en) 1998-01-14

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term