JPS5635252A - Detecting system for program branch address - Google Patents

Detecting system for program branch address

Info

Publication number
JPS5635252A
JPS5635252A JP11003079A JP11003079A JPS5635252A JP S5635252 A JPS5635252 A JP S5635252A JP 11003079 A JP11003079 A JP 11003079A JP 11003079 A JP11003079 A JP 11003079A JP S5635252 A JPS5635252 A JP S5635252A
Authority
JP
Japan
Prior art keywords
data
held
change
circuit
detecting system
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
JP11003079A
Other languages
Japanese (ja)
Inventor
Yutaka Haruna
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP11003079A priority Critical patent/JPS5635252A/en
Publication of JPS5635252A publication Critical patent/JPS5635252A/en
Pending legal-status Critical Current

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To confirm the process route for the program branch address detecting system for the debug of the electronic computer, by setting no break point to the fixed program and with no change given to the branch instruction decoding method although the CPU may change.
CONSTITUTION: The address data A0...An held at the latch circuit 11 are shifted to the latch circuit 12 in the timing of the next reading signal IFCLK. And the data A0...An delivered from the circuit 12 are delivered to the address bus. As the same time, both the data held at the circuits 11 and 12 are sent to the comparator 13. The comparator 13 gives a comparison to the data supplied, and then delivers the writing signals FT to the memory 14 in case the difference of comparison of the data is larger than the value set previously. Then the data A0...An held at the circuit 11 are written successively into the specified addresses of the memory 14. In such way, the process route can be confirmed without setting the break point to the fixed program nor changing the branch instruction decoding method although the CPU has some change.
COPYRIGHT: (C)1981,JPO&Japio
JP11003079A 1979-08-29 1979-08-29 Detecting system for program branch address Pending JPS5635252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11003079A JPS5635252A (en) 1979-08-29 1979-08-29 Detecting system for program branch address

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11003079A JPS5635252A (en) 1979-08-29 1979-08-29 Detecting system for program branch address

Publications (1)

Publication Number Publication Date
JPS5635252A true JPS5635252A (en) 1981-04-07

Family

ID=14525323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11003079A Pending JPS5635252A (en) 1979-08-29 1979-08-29 Detecting system for program branch address

Country Status (1)

Country Link
JP (1) JPS5635252A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221943A (en) * 1985-03-28 1986-10-02 Canon Inc Arithmetic processor
US4747074A (en) * 1983-05-13 1988-05-24 Shigeaki Yoshida Display controller for detecting predetermined drawing command among a plurality of drawing commands
US4783762A (en) * 1983-01-19 1988-11-08 Omron Tateisi Electronics Co. Programmable controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925833A (en) * 1972-06-30 1974-03-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925833A (en) * 1972-06-30 1974-03-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783762A (en) * 1983-01-19 1988-11-08 Omron Tateisi Electronics Co. Programmable controller
US4747074A (en) * 1983-05-13 1988-05-24 Shigeaki Yoshida Display controller for detecting predetermined drawing command among a plurality of drawing commands
JPS61221943A (en) * 1985-03-28 1986-10-02 Canon Inc Arithmetic processor

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