JPS5629760A - Information retrieving system for common bus computer system - Google Patents
Information retrieving system for common bus computer systemInfo
- Publication number
- JPS5629760A JPS5629760A JP10461179A JP10461179A JPS5629760A JP S5629760 A JPS5629760 A JP S5629760A JP 10461179 A JP10461179 A JP 10461179A JP 10461179 A JP10461179 A JP 10461179A JP S5629760 A JPS5629760 A JP S5629760A
- Authority
- JP
- Japan
- Prior art keywords
- data
- cpu
- main memory
- instruction
- inquiry items
- 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 reduce greatly the number of the I/O instructions given from the CPU as well as the data transfer frequency, by applying an interruption to the CPU after storing the data into the fixed position on the main memory when the data adequate to the inquiry items of the main memory is found out.
CONSTITUTION: The CPU not shown in the figure sets the fixed data to the device state register 2 and the file address register 4, and then sets the instruction code to the instruction register 5. Thus the intelligent device iNDV reads out the inquiry items of the main memory to start the retrieving action. And when the data adequate to the inquiry items is found out, the data, the byte number and the recording address of the data on the disk 12 are stored in the fixed position on the main memory. And then an interruption is applied to the CPU. Thus the CPU performs the process such as the display or the like to the stored data to carry out the subsequent retrieving instruction. As a result, a great reduction is possible to the I/O instructions given from the CPU as well as the data transfer frequency.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10461179A JPS5629760A (en) | 1979-08-17 | 1979-08-17 | Information retrieving system for common bus computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10461179A JPS5629760A (en) | 1979-08-17 | 1979-08-17 | Information retrieving system for common bus computer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5629760A true JPS5629760A (en) | 1981-03-25 |
Family
ID=14385222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10461179A Pending JPS5629760A (en) | 1979-08-17 | 1979-08-17 | Information retrieving system for common bus computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5629760A (en) |
-
1979
- 1979-08-17 JP JP10461179A patent/JPS5629760A/en active Pending
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