JPS5556267A - Information processor - Google Patents

Information processor

Info

Publication number
JPS5556267A
JPS5556267A JP12926578A JP12926578A JPS5556267A JP S5556267 A JPS5556267 A JP S5556267A JP 12926578 A JP12926578 A JP 12926578A JP 12926578 A JP12926578 A JP 12926578A JP S5556267 A JPS5556267 A JP S5556267A
Authority
JP
Japan
Prior art keywords
instruction
execution
gate
decoded
contents
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
JP12926578A
Other languages
Japanese (ja)
Inventor
Sada Watanabe
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12926578A priority Critical patent/JPS5556267A/en
Publication of JPS5556267A publication Critical patent/JPS5556267A/en
Pending legal-status Critical Current

Links

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To know easily the number times of instruction execution in a random section through software, by counting the number by an instruction of its own unit.
CONSTITUTION: An instruction is inputted to register 100, where its code part 110a is decoded 120 for execution 140. Execution end pulses are counted 170 through gate 150 to hode cumulative value. Its contents are sent to bus 171 by the read instruction decoded to decode 130 address part 110b and the decoding output is stored at an assigned place of memory unit 200. A pulse, generated 40 by a count start or stop instruction, put FF160 into operation to count selectively the number of times of instruction execution 170 through gate 150. Then, the number of times of instruction in a desired section can be judged from difference between contents read by exection and stop instructions.
COPYRIGHT: (C)1980,JPO&Japio
JP12926578A 1978-10-20 1978-10-20 Information processor Pending JPS5556267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12926578A JPS5556267A (en) 1978-10-20 1978-10-20 Information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12926578A JPS5556267A (en) 1978-10-20 1978-10-20 Information processor

Publications (1)

Publication Number Publication Date
JPS5556267A true JPS5556267A (en) 1980-04-24

Family

ID=15005291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12926578A Pending JPS5556267A (en) 1978-10-20 1978-10-20 Information processor

Country Status (1)

Country Link
JP (1) JPS5556267A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714953A (en) * 1980-07-01 1982-01-26 Nec Corp Information processor
JPH0283752A (en) * 1988-09-21 1990-03-23 Hitachi Ltd Monitoring system for information processor
JPH03166633A (en) * 1989-11-27 1991-07-18 Nec Software Ltd Information processor with machine language instruction appearance frequency counting function

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138851A (en) * 1974-09-27 1976-03-31 Hitachi Ltd
JPS52131437A (en) * 1976-04-28 1977-11-04 Hitachi Ltd Hardware monitor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138851A (en) * 1974-09-27 1976-03-31 Hitachi Ltd
JPS52131437A (en) * 1976-04-28 1977-11-04 Hitachi Ltd Hardware monitor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714953A (en) * 1980-07-01 1982-01-26 Nec Corp Information processor
JPH0283752A (en) * 1988-09-21 1990-03-23 Hitachi Ltd Monitoring system for information processor
JPH03166633A (en) * 1989-11-27 1991-07-18 Nec Software Ltd Information processor with machine language instruction appearance frequency counting function

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