JPS5674760A - Data trace system - Google Patents
Data trace systemInfo
- Publication number
- JPS5674760A JPS5674760A JP15271779A JP15271779A JPS5674760A JP S5674760 A JPS5674760 A JP S5674760A JP 15271779 A JP15271779 A JP 15271779A JP 15271779 A JP15271779 A JP 15271779A JP S5674760 A JPS5674760 A JP S5674760A
- Authority
- JP
- Japan
- Prior art keywords
- change
- logic information
- time
- memory
- timer
- 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 store convergently a changing part of logic information required for an analysis of the logic information by writing the change of the logic information and the time up to the change in the same memory and by converting the traceable amount of logic information from an element of time to that of change extent.
CONSTITUTION: When logic information has no changes, timer 7 is commanded to start the counting of time and writing in memory 5 is inhibited. On the other hand, logic information stored in fetch register group 1 and that in buffer register group 2 are compared mutually, clock by clock, in sequence and when the same event continues and there is no change, timer 7 operates after the information is written in memory 5 once for the 1st time to count the time until the next change is made. Once a change of the logic information is found, timer 7 adds a time mark to time data in memory 5 through OR circuit 4 under the command of control circuit 8 and then stores it. Thus, a change part required for an analysis of the logic information can be stored convergently.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15271779A JPS5674760A (en) | 1979-11-26 | 1979-11-26 | Data trace system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15271779A JPS5674760A (en) | 1979-11-26 | 1979-11-26 | Data trace system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674760A true JPS5674760A (en) | 1981-06-20 |
Family
ID=15546608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15271779A Pending JPS5674760A (en) | 1979-11-26 | 1979-11-26 | Data trace system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674760A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62107978U (en) * | 1985-12-26 | 1987-07-10 | ||
US4752928A (en) * | 1985-05-06 | 1988-06-21 | Tektronix, Inc. | Transaction analyzer |
-
1979
- 1979-11-26 JP JP15271779A patent/JPS5674760A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4752928A (en) * | 1985-05-06 | 1988-06-21 | Tektronix, Inc. | Transaction analyzer |
JPS62107978U (en) * | 1985-12-26 | 1987-07-10 | ||
JPH0532306Y2 (en) * | 1985-12-26 | 1993-08-18 |
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