JPS5616981A - Data retrieval unit - Google Patents
Data retrieval unitInfo
- Publication number
- JPS5616981A JPS5616981A JP9021479A JP9021479A JPS5616981A JP S5616981 A JPS5616981 A JP S5616981A JP 9021479 A JP9021479 A JP 9021479A JP 9021479 A JP9021479 A JP 9021479A JP S5616981 A JPS5616981 A JP S5616981A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- address
- execution
- program
- memory
- 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.)
- Granted
Links
Landscapes
- Memory System Of A Hierarchy Structure (AREA)
Abstract
PURPOSE: To shorten the instructing execution time and to increase the performance of the unit, by using the effective address for the retrieval of the high speed buffer memory and performing the calculation of this retrieval and the real memory address parallelly.
CONSTITUTION: The directory control 17 clears the high speed buffer memory 19, at the transition from the control program to the user's program and reverse. At the execution of the user's program, the signal S1 from the address register 11 and the signal S2 from the modification register 12 are added 13 to obtain the execution address signal S3. The signal S3 and the signal S4 from the base address regiter 14 are added 15 to obtain the real memory address signal S5. In parallel with the execution of calculation of the signal S5, the signal S3 is compared 18 with the signal S6 from the directory 16 to obtain the signal S2. The data S9 can be read out from the memory 19 with the coincidence output of the signal S8.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9021479A JPS5616981A (en) | 1979-07-16 | 1979-07-16 | Data retrieval unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9021479A JPS5616981A (en) | 1979-07-16 | 1979-07-16 | Data retrieval unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5616981A true JPS5616981A (en) | 1981-02-18 |
JPS6161142B2 JPS6161142B2 (en) | 1986-12-24 |
Family
ID=13992224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9021479A Granted JPS5616981A (en) | 1979-07-16 | 1979-07-16 | Data retrieval unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5616981A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5887943A (en) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | Loop transmission controlling system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04152044A (en) * | 1990-10-09 | 1992-05-26 | Hamai Sangyo Kk | Pallet exchanger for machine tool |
-
1979
- 1979-07-16 JP JP9021479A patent/JPS5616981A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5887943A (en) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | Loop transmission controlling system |
Also Published As
Publication number | Publication date |
---|---|
JPS6161142B2 (en) | 1986-12-24 |
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