JPS648453A - Trace system for multiprocessor system - Google Patents
Trace system for multiprocessor systemInfo
- Publication number
- JPS648453A JPS648453A JP62164933A JP16493387A JPS648453A JP S648453 A JPS648453 A JP S648453A JP 62164933 A JP62164933 A JP 62164933A JP 16493387 A JP16493387 A JP 16493387A JP S648453 A JPS648453 A JP S648453A
- Authority
- JP
- Japan
- Prior art keywords
- bus control
- bus
- signal
- processor
- trace
- 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)
- Multi Processors (AREA)
Abstract
PURPOSE:To allow only a tracer to trace the operation of plural processors by converting an internal bus control request outputted from a processor into an external bus control request, sending the converted request to a bus control part and converting an external bus control permission outputted from the bus control part into an internal bus control permission. CONSTITUTION:In a trace mode, a processor 16 is turned on, an internal bus control request signal is outputted and a signal converting means TR turns on a signal on an external bus control request signal line BR2. Then, the bus control part 15 checks whether a processor 11 uses a bus MB or not, and if the bus MB is not used, turns on a signal on an external bus control permission signal line BA2 and a bus connecting means CN connects the bus LB to the bus MB. When a signal on the signal line BA2 is turned on, an internal bus control permission signal is turned on and the processor 16 sends an address, data, etc., to the bus LB. Since the buses LB, MB are connected to each other, two signals are entered into the tracer 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164933A JPS648453A (en) | 1987-06-30 | 1987-06-30 | Trace system for multiprocessor system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164933A JPS648453A (en) | 1987-06-30 | 1987-06-30 | Trace system for multiprocessor system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648453A true JPS648453A (en) | 1989-01-12 |
Family
ID=15802599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62164933A Pending JPS648453A (en) | 1987-06-30 | 1987-06-30 | Trace system for multiprocessor system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648453A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008071093A (en) * | 2006-09-13 | 2008-03-27 | Fujitsu Ltd | Multiprocessor system |
-
1987
- 1987-06-30 JP JP62164933A patent/JPS648453A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008071093A (en) * | 2006-09-13 | 2008-03-27 | Fujitsu Ltd | Multiprocessor system |
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