JPS57113477A - Table searching device for cash buffer - Google Patents

Table searching device for cash buffer

Info

Publication number
JPS57113477A
JPS57113477A JP56000044A JP4481A JPS57113477A JP S57113477 A JPS57113477 A JP S57113477A JP 56000044 A JP56000044 A JP 56000044A JP 4481 A JP4481 A JP 4481A JP S57113477 A JPS57113477 A JP S57113477A
Authority
JP
Japan
Prior art keywords
circuit
cash
address
mishit
buffer
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
JP56000044A
Other languages
Japanese (ja)
Inventor
Yutaka Hitai
Shigeki Shibayama
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 JP56000044A priority Critical patent/JPS57113477A/en
Publication of JPS57113477A publication Critical patent/JPS57113477A/en
Pending 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
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To search for mishit of a cash buffer at a high speed, by providing a storing circuit, etc. for a cash table, and deciding hit and mishit. CONSTITUTION:In accordance with access from an external device 401 such as a CPU, etc., a cash controlling part 402 sets the head address of each cash table, the head address of an area containing data calculated from an address from the device 401, the length of the cash table, etc. to an addressing circuit 406, a comparing register 407, and a table length circuit 409, respectively. Subsequently, the address of the circuit 406 is driven in order by a circuit 410, a page head address of a table storing circuit 405 is compared with contents of the register 407 by a comparing circuit 408. Unless coincidence by this comparison is generated before coinciding with the total number of driving the address through the circuit 410 in accordance with setting of the circuit 409, it is decided as mishit, it does not pass through the controlling part 402, therefore, mishit is searched quickly, and a cash buffer is utilized effectively.
JP56000044A 1981-01-05 1981-01-05 Table searching device for cash buffer Pending JPS57113477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56000044A JPS57113477A (en) 1981-01-05 1981-01-05 Table searching device for cash buffer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56000044A JPS57113477A (en) 1981-01-05 1981-01-05 Table searching device for cash buffer

Publications (1)

Publication Number Publication Date
JPS57113477A true JPS57113477A (en) 1982-07-14

Family

ID=11463284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56000044A Pending JPS57113477A (en) 1981-01-05 1981-01-05 Table searching device for cash buffer

Country Status (1)

Country Link
JP (1) JPS57113477A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108342A (en) * 1985-11-06 1987-05-19 Alps Electric Co Ltd Disk cache controlling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108342A (en) * 1985-11-06 1987-05-19 Alps Electric Co Ltd Disk cache controlling system

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