JPS5635252A - Detecting system for program branch address - Google Patents
Detecting system for program branch addressInfo
- 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
Links
Landscapes
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4925833A (en) * | 1972-06-30 | 1974-03-07 |
-
1979
- 1979-08-29 JP JP11003079A patent/JPS5635252A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4925833A (en) * | 1972-06-30 | 1974-03-07 |
Cited By (3)
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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