JPS57199058A - Controlling system for microprogram - Google Patents
Controlling system for microprogramInfo
- Publication number
- JPS57199058A JPS57199058A JP56084820A JP8482081A JPS57199058A JP S57199058 A JPS57199058 A JP S57199058A JP 56084820 A JP56084820 A JP 56084820A JP 8482081 A JP8482081 A JP 8482081A JP S57199058 A JPS57199058 A JP S57199058A
- Authority
- JP
- Japan
- Prior art keywords
- failure
- information
- rams
- stored
- register
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/073—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in a memory management context, e.g. virtual memory or cache management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Debugging And Monitoring (AREA)
Abstract
PURPOSE:To detect an exact internal state at failure generation, by selecting an arbitrary one out of a plurality of storage means in accordance with the situation where various control informations are stored to a plurality of storage means simultaneously and a failure is detected. CONSTITUTION:In writing information to an RAM2 with a normal mu program operation, the content of a data register 7 is stored in a designated address with an address register 6, FFs 12-14 are set to 0, and the same information is written in RAMs 3-5 at the same time. If a failure detecting circuit 8 detects a failure, the FFs 12-14 are set according to the types of failures, the writing to the RAMs 3-5 is inhibited and the same content as the RAM2 at the production of a failure is stored in the RAMs 3-5. When required failure information is desired to be read out, and when a prescribed value is set to an RAM output selecting register 20, one of the outputs of the RAMs 3-5 is selected at a selection circuit 18 and an FF21 is set, the information is stored in the register 7 with a selection circuit 19, allowing to obtain useful failure analysis information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56084820A JPS57199058A (en) | 1981-06-01 | 1981-06-01 | Controlling system for microprogram |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56084820A JPS57199058A (en) | 1981-06-01 | 1981-06-01 | Controlling system for microprogram |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57199058A true JPS57199058A (en) | 1982-12-06 |
Family
ID=13841379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56084820A Pending JPS57199058A (en) | 1981-06-01 | 1981-06-01 | Controlling system for microprogram |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57199058A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638804A (en) * | 1986-06-27 | 1988-01-14 | Koyo Denshi Kogyo Kk | Programmable controller |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54148449A (en) * | 1978-05-15 | 1979-11-20 | Fujitsu Ltd | Tracer |
-
1981
- 1981-06-01 JP JP56084820A patent/JPS57199058A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54148449A (en) * | 1978-05-15 | 1979-11-20 | Fujitsu Ltd | Tracer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638804A (en) * | 1986-06-27 | 1988-01-14 | Koyo Denshi Kogyo Kk | Programmable controller |
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