JPS54115038A - Data processing system - Google Patents

Data processing system

Info

Publication number
JPS54115038A
JPS54115038A JP2342078A JP2342078A JPS54115038A JP S54115038 A JPS54115038 A JP S54115038A JP 2342078 A JP2342078 A JP 2342078A JP 2342078 A JP2342078 A JP 2342078A JP S54115038 A JPS54115038 A JP S54115038A
Authority
JP
Japan
Prior art keywords
register
processing
processing request
request
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
JP2342078A
Other languages
Japanese (ja)
Inventor
Akihiko Doi
Kazumasa Okawa
Shigeki Yamada
Hiroyuki Amada
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
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2342078A priority Critical patent/JPS54115038A/en
Publication of JPS54115038A publication Critical patent/JPS54115038A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To execute service in the order of processing reguest taken place and to perform it econimically, by providing the processing request register, display register after request and the detection circuit for disagreement of the both.
CONSTITUTION: The peripheral sections 1,2 producing the processing request in arbitrary time are connected to the processing registration register 4 and the processing request registration register via the bus 9. When the peripheral section 1 requests serive to the control section 7, the processing request register is made by +1 via the operation circuit 6, and the service content of the peripheral section requested is stored in the memory address of the memory 3. On the other hand, the control section 7 detects the disagreement between the processing request registration register 4 and the processing display register 5, and if the exclusive logical sum is other than 0, the serivce is assumed to be present, and the register 5 is made by +1 via the operation circuit 6, the reslt of advance is addressed and accessed to the memory 3, and processing is executed to the peripheral section 1. Thus, the processing request is periodically received and it is sequentially executed.
COPYRIGHT: (C)1979,JPO&Japio
JP2342078A 1978-02-28 1978-02-28 Data processing system Pending JPS54115038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2342078A JPS54115038A (en) 1978-02-28 1978-02-28 Data processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2342078A JPS54115038A (en) 1978-02-28 1978-02-28 Data processing system

Publications (1)

Publication Number Publication Date
JPS54115038A true JPS54115038A (en) 1979-09-07

Family

ID=12110000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2342078A Pending JPS54115038A (en) 1978-02-28 1978-02-28 Data processing system

Country Status (1)

Country Link
JP (1) JPS54115038A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61201339A (en) * 1985-02-28 1986-09-06 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Interrupt control method and apparatus
JPH01180049A (en) * 1988-01-09 1989-07-18 Pfu Ltd Arbitrating circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135337A (en) * 1975-05-19 1976-11-24 Mitsubishi Electric Corp Data treatment device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135337A (en) * 1975-05-19 1976-11-24 Mitsubishi Electric Corp Data treatment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61201339A (en) * 1985-02-28 1986-09-06 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Interrupt control method and apparatus
JPH01180049A (en) * 1988-01-09 1989-07-18 Pfu Ltd Arbitrating circuit

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