JPS6476145A - Multiprocessor system - Google Patents

Multiprocessor system

Info

Publication number
JPS6476145A
JPS6476145A JP62232133A JP23213387A JPS6476145A JP S6476145 A JPS6476145 A JP S6476145A JP 62232133 A JP62232133 A JP 62232133A JP 23213387 A JP23213387 A JP 23213387A JP S6476145 A JPS6476145 A JP S6476145A
Authority
JP
Japan
Prior art keywords
condition
access
main processor
setting means
ineffective
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
JP62232133A
Other languages
Japanese (ja)
Inventor
Akihiko Takiguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62232133A priority Critical patent/JPS6476145A/en
Publication of JPS6476145A publication Critical patent/JPS6476145A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To effectively use the memory space of a main processor with an address space occupied by a shared memory by making effective or ineffective the access for the shared memory in accordance with the necessity of a main processor. CONSTITUTION:The system is provided with a first setting means to make an access from a main processor 100 to shared memories 200,201...20n into an effective or ineffective condition and a second setting means to change the setting condition set by the first setting means into the effective or ineffective condition. When the main processor 100 needs to communicate with slave processors 210-21n by means of the shared memories 200,201...20n, the condition set by the first setting means is made into the access effective condition by the second setting means and when communication is not necessary, the condition is made into the access ineffective condition. Consequently, when the communication is not necessary, the shared memory can be occupied in a main memory 102 of the main processor 100 as the access ineffective condition.
JP62232133A 1987-09-18 1987-09-18 Multiprocessor system Pending JPS6476145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62232133A JPS6476145A (en) 1987-09-18 1987-09-18 Multiprocessor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62232133A JPS6476145A (en) 1987-09-18 1987-09-18 Multiprocessor system

Publications (1)

Publication Number Publication Date
JPS6476145A true JPS6476145A (en) 1989-03-22

Family

ID=16934514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62232133A Pending JPS6476145A (en) 1987-09-18 1987-09-18 Multiprocessor system

Country Status (1)

Country Link
JP (1) JPS6476145A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833766A (en) * 1981-08-22 1983-02-28 Nippon Signal Co Ltd:The Multi-microcomputer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833766A (en) * 1981-08-22 1983-02-28 Nippon Signal Co Ltd:The Multi-microcomputer

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