JPS5575664A - Diagnosis system for microprocessor - Google Patents
Diagnosis system for microprocessorInfo
- Publication number
- JPS5575664A JPS5575664A JP15033378A JP15033378A JPS5575664A JP S5575664 A JPS5575664 A JP S5575664A JP 15033378 A JP15033378 A JP 15033378A JP 15033378 A JP15033378 A JP 15033378A JP S5575664 A JPS5575664 A JP S5575664A
- Authority
- JP
- Japan
- Prior art keywords
- register
- state
- bus
- program
- agreement
- 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
- Tests Of Electronic Circuits (AREA)
Abstract
PURPOSE: To enable to store the content of the bus and the internal register at any time point for program execution, by comparing the state of bus of measured system with a given condition and comparing and displaying the content of the internal register when in agreement.
CONSTITUTION: When the microprocessor PC1 executes the program, the state of the data bus and the address bus is changed, and when this state is in agreement 2 with the set condition, the timing circuit 7 is operated, the execution of instruction of PC1 is interrupted, and the returned address memory pulse is given to the register 3 and the state of address bus is stored. On the other hand, the output of the selection circuit 10 selects the selection circuit 8 to execute the program of the analysis memory 1 to PC1. After storing the state of the register in PC1, the program jumps to the returned address of the register 3. Next, the selection circuit 8 is selected, the register state information in the memory 5 is compared 6 with the set condition, and the content of the internal register is displayed 11 in case of agreement.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15033378A JPS5575664A (en) | 1978-12-04 | 1978-12-04 | Diagnosis system for microprocessor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15033378A JPS5575664A (en) | 1978-12-04 | 1978-12-04 | Diagnosis system for microprocessor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5575664A true JPS5575664A (en) | 1980-06-07 |
Family
ID=15494709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15033378A Pending JPS5575664A (en) | 1978-12-04 | 1978-12-04 | Diagnosis system for microprocessor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5575664A (en) |
-
1978
- 1978-12-04 JP JP15033378A patent/JPS5575664A/en active Pending
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