JPS5757369A - Access control system - Google Patents

Access control system

Info

Publication number
JPS5757369A
JPS5757369A JP13196280A JP13196280A JPS5757369A JP S5757369 A JPS5757369 A JP S5757369A JP 13196280 A JP13196280 A JP 13196280A JP 13196280 A JP13196280 A JP 13196280A JP S5757369 A JPS5757369 A JP S5757369A
Authority
JP
Japan
Prior art keywords
access
data
elements
vector
corresponds
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
JP13196280A
Other languages
Japanese (ja)
Other versions
JPS6058500B2 (en
Inventor
Shoji Nakatani
Hiroshi Tamura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13196280A priority Critical patent/JPS6058500B2/en
Publication of JPS5757369A publication Critical patent/JPS5757369A/en
Publication of JPS6058500B2 publication Critical patent/JPS6058500B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/76—Architectures of general purpose stored program computers
    • G06F15/80—Architectures of general purpose stored program computers comprising an array of processing units with common control, e.g. single instruction multiple data processors
    • G06F15/8053—Vector processors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Complex Calculations (AREA)

Abstract

PURPOSE:To reduce the number of access times and to make the access efficient, by requesting the access once and by setting a number of read vector data which corresponds to the number of elements, in case that the distance between elements is 0 in a vector processing device. CONSTITUTION:In loading of data, it is detected by a 0 detecting circuit 14 that the distance between element is 0, and the access is requested once from a request generating circuit 15 to a memory control device 4, and vector data is ead out from the memory 1, and a number of read vector data which corresponds to the number of elements required in a processing device is set in a vector register. Consequently, the number of access requests is reduced considerably, and the data processing speed is made high.
JP13196280A 1980-09-22 1980-09-22 Access control method Expired JPS6058500B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13196280A JPS6058500B2 (en) 1980-09-22 1980-09-22 Access control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13196280A JPS6058500B2 (en) 1980-09-22 1980-09-22 Access control method

Publications (2)

Publication Number Publication Date
JPS5757369A true JPS5757369A (en) 1982-04-06
JPS6058500B2 JPS6058500B2 (en) 1985-12-20

Family

ID=15070284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13196280A Expired JPS6058500B2 (en) 1980-09-22 1980-09-22 Access control method

Country Status (1)

Country Link
JP (1) JPS6058500B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111569A (en) * 1982-12-17 1984-06-27 Hitachi Ltd Vector processing device
JPS62115571A (en) * 1985-11-15 1987-05-27 Fujitsu Ltd Vector access control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111569A (en) * 1982-12-17 1984-06-27 Hitachi Ltd Vector processing device
JPH0410108B2 (en) * 1982-12-17 1992-02-24
JPS62115571A (en) * 1985-11-15 1987-05-27 Fujitsu Ltd Vector access control system
JPH0479026B2 (en) * 1985-11-15 1992-12-14 Fujitsu Ltd

Also Published As

Publication number Publication date
JPS6058500B2 (en) 1985-12-20

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