JPS55103658A - Diagnostic system - Google Patents

Diagnostic system

Info

Publication number
JPS55103658A
JPS55103658A JP1009779A JP1009779A JPS55103658A JP S55103658 A JPS55103658 A JP S55103658A JP 1009779 A JP1009779 A JP 1009779A JP 1009779 A JP1009779 A JP 1009779A JP S55103658 A JPS55103658 A JP S55103658A
Authority
JP
Japan
Prior art keywords
data
buffer
processing unit
buffers
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
JP1009779A
Other languages
Japanese (ja)
Inventor
Koichi Kanamaru
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 JP1009779A priority Critical patent/JPS55103658A/en
Publication of JPS55103658A publication Critical patent/JPS55103658A/en
Pending legal-status Critical Current

Links

Landscapes

  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To perform diagnosis without addition of a diagnostic hard circuit by utilizing features of a processing unit to diagnose the data buffer, the data bus, etc., of the processing unit.
CONSTITUTION: For execution of memory-memory-data instruction MOVE to transfer and write data of a designated address in main memory 3 to another address, data to be stored temporarily in write data buffer 12 is stored temporarily in one unused buffer of the first and the second read data buffers 1 and 2. After execution of instruction MOVE, corresponding data of buffers 1 and 2 is read selectively according to indication of point registers 6 and 7 and is supplied to respective input ends of comparator circuit 8. Then, circuit 8 compares data to decide on a basis of the coincidence decision whether buffers 1 and 2, buffer 12, etc., specially, of the processing unit are normal or not. Similar data comparison is repeated by movement of the indication position of registers 6 and 7.
COPYRIGHT: (C)1980,JPO&Japio
JP1009779A 1979-01-31 1979-01-31 Diagnostic system Pending JPS55103658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1009779A JPS55103658A (en) 1979-01-31 1979-01-31 Diagnostic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1009779A JPS55103658A (en) 1979-01-31 1979-01-31 Diagnostic system

Publications (1)

Publication Number Publication Date
JPS55103658A true JPS55103658A (en) 1980-08-08

Family

ID=11740813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1009779A Pending JPS55103658A (en) 1979-01-31 1979-01-31 Diagnostic system

Country Status (1)

Country Link
JP (1) JPS55103658A (en)

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