JPS6252641A - Program trace device - Google Patents

Program trace device

Info

Publication number
JPS6252641A
JPS6252641A JP60191338A JP19133885A JPS6252641A JP S6252641 A JPS6252641 A JP S6252641A JP 60191338 A JP60191338 A JP 60191338A JP 19133885 A JP19133885 A JP 19133885A JP S6252641 A JPS6252641 A JP S6252641A
Authority
JP
Japan
Prior art keywords
trace
data
circuit
memory circuit
trace data
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
JP60191338A
Other languages
Japanese (ja)
Inventor
Toshifumi Morii
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP60191338A priority Critical patent/JPS6252641A/en
Publication of JPS6252641A publication Critical patent/JPS6252641A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To refer to trace data in a still state by providing two sets of trace data memory circuits and transferring the trace data to the other trace data memory circuit only when the state requiring trace occurs.
CONSTITUTION: When the trace data is generated, a trace activating circuit 1 activates, and a trace control circuit 4 checks the contents of a trace control data memory circuit 8. When said contents show the trace validity and a transfer command, a trace validity/invalidity connection point 5 is turned ON, and the data is outputted to a trace data control circuit 2 and registered in the trace data memory circuit 3. Simultaneously counter's value in the memory circuit 8 is transferred to a counter in the circuit 4. After the transfer command is outputted, the counter's value is subtracted only when the trace is valid. When said value comes to zero, a trace data connection point 7 is turned ON, and the data similar to the memory circuit 3 is generated in a still trace data memory circuit 9.
COPYRIGHT: (C)1987,JPO&Japio
JP60191338A 1985-08-30 1985-08-30 Program trace device Pending JPS6252641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60191338A JPS6252641A (en) 1985-08-30 1985-08-30 Program trace device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60191338A JPS6252641A (en) 1985-08-30 1985-08-30 Program trace device

Publications (1)

Publication Number Publication Date
JPS6252641A true JPS6252641A (en) 1987-03-07

Family

ID=16272898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60191338A Pending JPS6252641A (en) 1985-08-30 1985-08-30 Program trace device

Country Status (1)

Country Link
JP (1) JPS6252641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02242345A (en) * 1989-03-15 1990-09-26 Yokogawa Electric Corp Microprocessor/analyzer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02242345A (en) * 1989-03-15 1990-09-26 Yokogawa Electric Corp Microprocessor/analyzer

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