JPS6468841A - Highly reliable program memory system - Google Patents

Highly reliable program memory system

Info

Publication number
JPS6468841A
JPS6468841A JP62227021A JP22702187A JPS6468841A JP S6468841 A JPS6468841 A JP S6468841A JP 62227021 A JP62227021 A JP 62227021A JP 22702187 A JP22702187 A JP 22702187A JP S6468841 A JPS6468841 A JP S6468841A
Authority
JP
Japan
Prior art keywords
instruction
parity error
memory system
continued
highly reliable
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
JP62227021A
Other languages
Japanese (ja)
Inventor
Kenji Kato
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 JP62227021A priority Critical patent/JPS6468841A/en
Publication of JPS6468841A publication Critical patent/JPS6468841A/en
Pending legal-status Critical Current

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  • Detection And Correction Of Errors (AREA)

Abstract

PURPOSE:To relieve a system from considerable cases out of cases of the occurrence of parity error to improve the reliability of the system, by reloading and continuing instructions when AND between outputs of two comparators indicates that instructions can be continued. CONSTITUTION:A first comparator 25a which discriminates whether the field where parity error occurs has an influence upon instruction continuation or not and a second comparator 25b which discriminates whether contents of the instruction in the field where parity error occurs has an influence upon instruction continuation or not are provided, and the instruction is reloaded and continued when AND between outputs of two comparators 25a and 25b indicates that the instruction can be continued. The system is relieved from considerable cases out of cases of the occurrence of parity error by addition of slight hardware to improve the reliability of the system.
JP62227021A 1987-09-10 1987-09-10 Highly reliable program memory system Pending JPS6468841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227021A JPS6468841A (en) 1987-09-10 1987-09-10 Highly reliable program memory system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227021A JPS6468841A (en) 1987-09-10 1987-09-10 Highly reliable program memory system

Publications (1)

Publication Number Publication Date
JPS6468841A true JPS6468841A (en) 1989-03-14

Family

ID=16854272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227021A Pending JPS6468841A (en) 1987-09-10 1987-09-10 Highly reliable program memory system

Country Status (1)

Country Link
JP (1) JPS6468841A (en)

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