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JPS5692661A - File control system - Google Patents

File control system

Info

Publication number
JPS5692661A
JPS5692661A JP16976979A JP16976979A JPS5692661A JP S5692661 A JPS5692661 A JP S5692661A JP 16976979 A JP16976979 A JP 16976979A JP 16976979 A JP16976979 A JP 16976979A JP S5692661 A JPS5692661 A JP S5692661A
Authority
JP
Japan
Prior art keywords
parameter
address
data
agreement
main 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.)
Pending
Application number
JP16976979A
Other languages
Japanese (ja)
Inventor
Hiroaki Inada
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 JP16976979A priority Critical patent/JPS5692661A/en
Publication of JPS5692661A publication Critical patent/JPS5692661A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the processing time remarkably, by performing the data transfer from the data buffer to a main memory unit, when the parameter of readout instruction and that used previously are in agreement.
CONSTITUTION: When the processing request 11 for two-block read-in is incoming from the sector 00 to a central processing unit 2, the unit 2 transmits a parameter 12 to a file controller 3, and the data 16 for two blocks' share is transferred to a main memory unit 1. Succeedingly, when the parameter for readout request is fed, the comparison with the preceding parameter is made. If in agreement, the cylinder address and the head address are compared with the preceding address, and when the agreement is confirmed, the sector address of the present parameter is analyzed, and the data 16 requested from the data buffer 14 is transferred to the main memory unit 1. Thus, the revolution waiting time for disc can be avoided.
COPYRIGHT: (C)1981,JPO&Japio
JP16976979A 1979-12-26 1979-12-26 File control system Pending JPS5692661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16976979A JPS5692661A (en) 1979-12-26 1979-12-26 File control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16976979A JPS5692661A (en) 1979-12-26 1979-12-26 File control system

Publications (1)

Publication Number Publication Date
JPS5692661A true JPS5692661A (en) 1981-07-27

Family

ID=15892507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16976979A Pending JPS5692661A (en) 1979-12-26 1979-12-26 File control system

Country Status (1)

Country Link
JP (1) JPS5692661A (en)

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