JPS55115146A - Program trace unit - Google Patents
Program trace unitInfo
- Publication number
- JPS55115146A JPS55115146A JP2131879A JP2131879A JPS55115146A JP S55115146 A JPS55115146 A JP S55115146A JP 2131879 A JP2131879 A JP 2131879A JP 2131879 A JP2131879 A JP 2131879A JP S55115146 A JPS55115146 A JP S55115146A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- trace information
- cpu1
- program
- unit
- 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 realize the pickup of trace information with minimum load, by enabling it at the occurrence of branch instruction or interruption automatically without indication of it with the software.
CONSTITUTION: The program trace unit is constituted with the memory 2 executing the operational processing at CPU1, memory 4 to store the trace information and external memory unit 5 to store the trace information for a long period. Further, when the program in a certain part of the memory 2 is executed at CPU1, and every time when internal and external interruption is caused to the branch instruction area, CPU1 writes in the memory content designated, IC counter and each register as the trace information to the memory 4 in predetermined form sequentially and primarily stores them. Further, the processor 3 connected to CPU1 writes in the trace information to the external memory unit 5 when the trace information written in the memory 4 is a given amount for secondary storage and feeds it to the line printer 6 with the instruction by the operator.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2131879A JPS55115146A (en) | 1979-02-27 | 1979-02-27 | Program trace unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2131879A JPS55115146A (en) | 1979-02-27 | 1979-02-27 | Program trace unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55115146A true JPS55115146A (en) | 1980-09-04 |
Family
ID=12051798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2131879A Pending JPS55115146A (en) | 1979-02-27 | 1979-02-27 | Program trace unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55115146A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58181154A (en) * | 1982-04-16 | 1983-10-22 | Nec Corp | Microprogram tracing device |
JPH06259282A (en) * | 1993-03-10 | 1994-09-16 | Nec Corp | Debugging interruption processor |
-
1979
- 1979-02-27 JP JP2131879A patent/JPS55115146A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58181154A (en) * | 1982-04-16 | 1983-10-22 | Nec Corp | Microprogram tracing device |
JPH046024B2 (en) * | 1982-04-16 | 1992-02-04 | Nippon Electric Co | |
JPH06259282A (en) * | 1993-03-10 | 1994-09-16 | Nec Corp | Debugging interruption processor |
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