JPS57106969A - File access controller - Google Patents

File access controller

Info

Publication number
JPS57106969A
JPS57106969A JP55183473A JP18347380A JPS57106969A JP S57106969 A JPS57106969 A JP S57106969A JP 55183473 A JP55183473 A JP 55183473A JP 18347380 A JP18347380 A JP 18347380A JP S57106969 A JPS57106969 A JP S57106969A
Authority
JP
Japan
Prior art keywords
input
file access
output controller
area
conversion parameters
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
JP55183473A
Other languages
Japanese (ja)
Inventor
Yuji Ogawa
Seiichi Sugano
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 JP55183473A priority Critical patent/JPS57106969A/en
Publication of JPS57106969A publication Critical patent/JPS57106969A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/122—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware performs an I/O function other than control of data transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To improve the efficiency of file access by reducing a load on soft- ware by securing conversion parameters of extension information in an input and output controller by the file access system of the input and output controller. CONSTITUTION:In addition to an area wherein a microinstruction group for controlling input and output operation, the control storage 12 of an input and output controller 10 is provided with a special area 13 wherein address conversion parameters of pieces of extension definition information. Then, a group of data indicated by virtual position information applied from a host processor via an interface 16 is read ans written continuously over more than one storage area through an address converting means.
JP55183473A 1980-12-24 1980-12-24 File access controller Pending JPS57106969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55183473A JPS57106969A (en) 1980-12-24 1980-12-24 File access controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55183473A JPS57106969A (en) 1980-12-24 1980-12-24 File access controller

Publications (1)

Publication Number Publication Date
JPS57106969A true JPS57106969A (en) 1982-07-03

Family

ID=16136404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55183473A Pending JPS57106969A (en) 1980-12-24 1980-12-24 File access controller

Country Status (1)

Country Link
JP (1) JPS57106969A (en)

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