JPS5694449A - Trace system in computer - Google Patents
Trace system in computerInfo
- Publication number
- JPS5694449A JPS5694449A JP17167579A JP17167579A JPS5694449A JP S5694449 A JPS5694449 A JP S5694449A JP 17167579 A JP17167579 A JP 17167579A JP 17167579 A JP17167579 A JP 17167579A JP S5694449 A JPS5694449 A JP S5694449A
- Authority
- JP
- Japan
- Prior art keywords
- program
- trace
- instruction
- data
- bit
- 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.)
- Granted
Links
Abstract
PURPOSE: To improve processability in online debugging, by generating the trace interrupt for every one instruction of the program to be debugged to facilitate multiple running of the program to be debugged.
CONSTITUTION: Data from the main memory and data transmitted from the data bus are selectively input by instruction execution control part 6, and execution of instructions is controlled on a basis of these data. The trace interrupt circuit consisting of FF11, logical operation circuits 10, 13, and OR circuit 14 is provided between control part 6 and program status word register 7. When the trace bit exists in the status word indicating the running state of the program, instruction execution of the program is stored in FF11, and AND between the set output and the trace indication bit is operated, and this value is stored in a specific bit of register 7 additionally, and the trace interrupt signal is generated for every one instruction of the program by OR between this specific bit and the AND.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54171675A JPS609294B2 (en) | 1979-12-27 | 1979-12-27 | Tracing method in electronic computers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54171675A JPS609294B2 (en) | 1979-12-27 | 1979-12-27 | Tracing method in electronic computers |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5694449A true JPS5694449A (en) | 1981-07-30 |
JPS609294B2 JPS609294B2 (en) | 1985-03-09 |
Family
ID=15927604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54171675A Expired JPS609294B2 (en) | 1979-12-27 | 1979-12-27 | Tracing method in electronic computers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS609294B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61210440A (en) * | 1985-03-14 | 1986-09-18 | Nec Corp | Level tracing device |
JPS62143143A (en) * | 1985-12-17 | 1987-06-26 | Fujitsu Ltd | Branch trace control system |
-
1979
- 1979-12-27 JP JP54171675A patent/JPS609294B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61210440A (en) * | 1985-03-14 | 1986-09-18 | Nec Corp | Level tracing device |
JPS62143143A (en) * | 1985-12-17 | 1987-06-26 | Fujitsu Ltd | Branch trace control system |
JPH0439097B2 (en) * | 1985-12-17 | 1992-06-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS609294B2 (en) | 1985-03-09 |
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