JPS6488836A - Data processor - Google Patents
Data processorInfo
- Publication number
- JPS6488836A JPS6488836A JP24687887A JP24687887A JPS6488836A JP S6488836 A JPS6488836 A JP S6488836A JP 24687887 A JP24687887 A JP 24687887A JP 24687887 A JP24687887 A JP 24687887A JP S6488836 A JPS6488836 A JP S6488836A
- Authority
- JP
- Japan
- Prior art keywords
- microprogram
- memory part
- memory
- execution
- started
- 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
Abstract
PURPOSE:To shorten the time required for system initialization by using a memory free from power failure as the memory part where a normally executed microprogram is stored. CONSTITUTION:When a switch 15 is turned on, a microprogram processing part 11 performs the read/write test of a memory part 12 and reads out the microprogram held in an external storage means 10 and writes it in the memory part 12 together with parity. After this write, the parity check of the memory part 12 is performed and execution of the microprogram written in the memory part 12 is started. When the switch 15 is turned off, the microprogram is not loaded from the means 10 on the memory part 12 and the parity check of the memory part 12 is performed and execution of the microprogram already stored in the memory part 12 is started. Thus, it is unnecessary to load the microprogram at the time of system initialization.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24687887A JPS6488836A (en) | 1987-09-30 | 1987-09-30 | Data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24687887A JPS6488836A (en) | 1987-09-30 | 1987-09-30 | Data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488836A true JPS6488836A (en) | 1989-04-03 |
Family
ID=17155082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24687887A Pending JPS6488836A (en) | 1987-09-30 | 1987-09-30 | Data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488836A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03276230A (en) * | 1990-03-26 | 1991-12-06 | Hioki Ee Corp | Data control method for starting equipment with built-in cpu |
JPH04291421A (en) * | 1991-03-20 | 1992-10-15 | Fujitsu Ltd | Microprogram code installing system |
JPH08179943A (en) * | 1994-12-27 | 1996-07-12 | Nec Ibaraki Ltd | Microprogram take-out control system |
-
1987
- 1987-09-30 JP JP24687887A patent/JPS6488836A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03276230A (en) * | 1990-03-26 | 1991-12-06 | Hioki Ee Corp | Data control method for starting equipment with built-in cpu |
JPH04291421A (en) * | 1991-03-20 | 1992-10-15 | Fujitsu Ltd | Microprogram code installing system |
JPH08179943A (en) * | 1994-12-27 | 1996-07-12 | Nec Ibaraki Ltd | Microprogram take-out control system |
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