JPS5485652A - Display unit of defective logical bolck - Google Patents

Display unit of defective logical bolck

Info

Publication number
JPS5485652A
JPS5485652A JP15291377A JP15291377A JPS5485652A JP S5485652 A JPS5485652 A JP S5485652A JP 15291377 A JP15291377 A JP 15291377A JP 15291377 A JP15291377 A JP 15291377A JP S5485652 A JPS5485652 A JP S5485652A
Authority
JP
Japan
Prior art keywords
region
register
error code
defective
agreement
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
JP15291377A
Other languages
Japanese (ja)
Inventor
Nobuhiro Taniguchi
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 JP15291377A priority Critical patent/JPS5485652A/en
Publication of JPS5485652A publication Critical patent/JPS5485652A/en
Pending legal-status Critical Current

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  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To enable to diaplay the defective parts without retrieval of dictionay, by storing the table indicating the logical defective block corresponding to each error in the computer.
CONSTITUTION: The corresponding table 1 consists of the region 2 storing each error code and the region 3 indicating the defective logic block corresponding to the region 2. As a result of diagnosis, if error code (1001)2 is detected, it is stored in the register 4 and error code is read out from the region 2 and it is set to the register 6. The data in the registers 4 and 6 are inputted to the comparison circuit 5 and are compared. In this case, if the both error codes are not in agreement, the error code is set to the register 6 sequentially from the region 2 and this operation is repeated until the agreement is made. Further, when (1001)2 is read out from the region 2, if agreement is made, then the parts up to 1 to 4 are read out from the region 3 and they are stored in the latch A7 via the register 6.
COPYRIGHT: (C)1979,JPO&Japio
JP15291377A 1977-12-21 1977-12-21 Display unit of defective logical bolck Pending JPS5485652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15291377A JPS5485652A (en) 1977-12-21 1977-12-21 Display unit of defective logical bolck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15291377A JPS5485652A (en) 1977-12-21 1977-12-21 Display unit of defective logical bolck

Publications (1)

Publication Number Publication Date
JPS5485652A true JPS5485652A (en) 1979-07-07

Family

ID=15550872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15291377A Pending JPS5485652A (en) 1977-12-21 1977-12-21 Display unit of defective logical bolck

Country Status (1)

Country Link
JP (1) JPS5485652A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148956A (en) * 1983-02-15 1984-08-25 Nec Corp Display system of defective information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148956A (en) * 1983-02-15 1984-08-25 Nec Corp Display system of defective information

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