JPS6486249A - Trace circuit for debugging program - Google Patents
Trace circuit for debugging programInfo
- Publication number
- JPS6486249A JPS6486249A JP62209565A JP20956587A JPS6486249A JP S6486249 A JPS6486249 A JP S6486249A JP 62209565 A JP62209565 A JP 62209565A JP 20956587 A JP20956587 A JP 20956587A JP S6486249 A JPS6486249 A JP S6486249A
- Authority
- JP
- Japan
- Prior art keywords
- trace
- writing
- data
- memory
- control circuit
- 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 arbitrarily set the number of trace data before and after a trigger pointer by providing a counter to generate endlessly the address of the memory to store the trace data and prohibiting the writing to the memory after the trace data of the number set beforehand by a trigger pointer signal occur. CONSTITUTION:A trace number control circuit 10, while a trigger pointer signal does not occur, executes the writing driving of a writing control circuit 15 by the output of a control signal 120. Thus, the data from a processor to come to a trace data input 170 are stored successively to the address designated by a counter 11 toward a trace memory 14. During the writing action, when a trigger pointer signal 110 occurs, the trace number control circuit 10 successively controls to execute the writing of the data of the number of the program steps of a numeric value set by a presetting input 195 beforehand from then and stop a trace action.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62209565A JPS6486249A (en) | 1987-08-24 | 1987-08-24 | Trace circuit for debugging program |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62209565A JPS6486249A (en) | 1987-08-24 | 1987-08-24 | Trace circuit for debugging program |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486249A true JPS6486249A (en) | 1989-03-30 |
Family
ID=16574936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62209565A Pending JPS6486249A (en) | 1987-08-24 | 1987-08-24 | Trace circuit for debugging program |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486249A (en) |
-
1987
- 1987-08-24 JP JP62209565A patent/JPS6486249A/en active Pending
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