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JPS6481050A - History information storage device - Google Patents

History information storage device

Info

Publication number
JPS6481050A
JPS6481050A JP62239444A JP23944487A JPS6481050A JP S6481050 A JPS6481050 A JP S6481050A JP 62239444 A JP62239444 A JP 62239444A JP 23944487 A JP23944487 A JP 23944487A JP S6481050 A JPS6481050 A JP S6481050A
Authority
JP
Japan
Prior art keywords
history information
action
storing
instruction
storage device
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
JP62239444A
Other languages
Japanese (ja)
Inventor
Teruo Nakamura
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
Original Assignee
NEC Corp
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 filed Critical NEC Corp
Priority to JP62239444A priority Critical patent/JPS6481050A/en
Publication of JPS6481050A publication Critical patent/JPS6481050A/en
Pending legal-status Critical Current

Links

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To reduce the capacity of a memory storing the history information by pointing a partial processing action of an information processing system storing the history information by a software instruction in a relevant program. CONSTITUTION:The number of executing steps is designated by a command given from a start means for an instruction to store the history information. Then the collection of the history information is started. A step counter 14 counts the steps of an executing instruction concurrently with a processing action and during a storing action of the history information. Then a detecting circuit 15 detects that the count value of the counter 14 reaches the prescribed level and ends the tracing action of the history information. A read means reads out the data traced by a memory part 4 as necessary and sends the data to a diagnosis control part 3 for start of the diagnosis.
JP62239444A 1987-09-22 1987-09-22 History information storage device Pending JPS6481050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62239444A JPS6481050A (en) 1987-09-22 1987-09-22 History information storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62239444A JPS6481050A (en) 1987-09-22 1987-09-22 History information storage device

Publications (1)

Publication Number Publication Date
JPS6481050A true JPS6481050A (en) 1989-03-27

Family

ID=17044863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62239444A Pending JPS6481050A (en) 1987-09-22 1987-09-22 History information storage device

Country Status (1)

Country Link
JP (1) JPS6481050A (en)

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