JPS5591048A - Tracing system for program execution state - Google Patents

Tracing system for program execution state

Info

Publication number
JPS5591048A
JPS5591048A JP16480478A JP16480478A JPS5591048A JP S5591048 A JPS5591048 A JP S5591048A JP 16480478 A JP16480478 A JP 16480478A JP 16480478 A JP16480478 A JP 16480478A JP S5591048 A JPS5591048 A JP S5591048A
Authority
JP
Japan
Prior art keywords
memory
bus
unit
contents
case
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
JP16480478A
Other languages
Japanese (ja)
Inventor
Tatsuyuki Kanai
Yoshinori Ishii
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 JP16480478A priority Critical patent/JPS5591048A/en
Publication of JPS5591048A publication Critical patent/JPS5591048A/en
Pending legal-status Critical Current

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To realize the detailed tracing and the like for the input/output action of the input/output device via the program by just connecting the memory bus to the tracing unit, thus ensuring the effective debug working for the program followed by the input/output action.
CONSTITUTION: Tracing unit 2 draws the data out of memory address bus 100 and into control part 20, and operates as the memory access given from the central control unit in case access unit identifying bit line X is 0 among contents S0WX of the bus and then as the memory access from the channel unit in case line X is 1 respectively. And in the case of the access given from the central control unit, control part 20 renews the address of recording memory I and writes the contents of the memory address bus into memory I via information line 112. And the contents of memory data bus 101 and memory answer bus 102 are taken in to be written into memory I in case the contents of the order line indicates the writing among the information of the bus and indicates the reading respectively. In the same way, the recording is carried out also for the access given from the channel unit.
COPYRIGHT: (C)1980,JPO&Japio
JP16480478A 1978-12-28 1978-12-28 Tracing system for program execution state Pending JPS5591048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16480478A JPS5591048A (en) 1978-12-28 1978-12-28 Tracing system for program execution state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16480478A JPS5591048A (en) 1978-12-28 1978-12-28 Tracing system for program execution state

Publications (1)

Publication Number Publication Date
JPS5591048A true JPS5591048A (en) 1980-07-10

Family

ID=15800229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16480478A Pending JPS5591048A (en) 1978-12-28 1978-12-28 Tracing system for program execution state

Country Status (1)

Country Link
JP (1) JPS5591048A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757350A (en) * 1980-09-24 1982-04-06 Nec Corp Information collector
JPS63163934A (en) * 1986-12-26 1988-07-07 Fujitsu Ltd Bus trace system
JPH0272456A (en) * 1988-09-08 1990-03-12 Nec Corp Hardware trace buffer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757350A (en) * 1980-09-24 1982-04-06 Nec Corp Information collector
JPS63163934A (en) * 1986-12-26 1988-07-07 Fujitsu Ltd Bus trace system
JPH0272456A (en) * 1988-09-08 1990-03-12 Nec Corp Hardware trace buffer

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