JPS54116847A - Memory control system - Google Patents
Memory control systemInfo
- Publication number
- JPS54116847A JPS54116847A JP2347678A JP2347678A JPS54116847A JP S54116847 A JPS54116847 A JP S54116847A JP 2347678 A JP2347678 A JP 2347678A JP 2347678 A JP2347678 A JP 2347678A JP S54116847 A JPS54116847 A JP S54116847A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- software
- cpus
- series
- 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.)
- Pending
Links
Landscapes
- Multi Processors (AREA)
Abstract
PURPOSE: To simplify the formation of software, to make program simple, and to improve capability of debugging by enabling the software to attain access to a memory without relating to CPUs by making each CPU perform CPU-series-number qualification independently.
CONSTITUTION: Corresponding to CPUs, main memory unit MM is provided with system areas of the same contents independently from any head address of unit MM in the order of CPU series numbers, and each CPU is provided with its-own- address memory register 25, whose contents are enabled to be inputted to shifter 14 via shifter decoder 15. As for system access at the interrupt-standby time, only one instruction including at least a relative address inside of the system area is given and each CPU performs CPU-series-number qualification independently by an arithmetic function of the CPU to enable the software to attain memory access without relating to CPUs. As a result, the formation of the software is simplified, the program is made simple, and the capability of debugging is improved.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2347678A JPS54116847A (en) | 1978-03-03 | 1978-03-03 | Memory control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2347678A JPS54116847A (en) | 1978-03-03 | 1978-03-03 | Memory control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54116847A true JPS54116847A (en) | 1979-09-11 |
Family
ID=12111576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2347678A Pending JPS54116847A (en) | 1978-03-03 | 1978-03-03 | Memory control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54116847A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5875121U (en) * | 1981-11-16 | 1983-05-20 | 石川島芝浦機械株式会社 | Tractor hydraulic operating device |
JPS6083168A (en) * | 1983-10-05 | 1985-05-11 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Multiprocessor system control |
JPH023226A (en) * | 1988-06-20 | 1990-01-08 | Fujitsu Ltd | Manufacture of semiconductor device |
-
1978
- 1978-03-03 JP JP2347678A patent/JPS54116847A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5875121U (en) * | 1981-11-16 | 1983-05-20 | 石川島芝浦機械株式会社 | Tractor hydraulic operating device |
JPS6218101Y2 (en) * | 1981-11-16 | 1987-05-11 | ||
JPS6083168A (en) * | 1983-10-05 | 1985-05-11 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Multiprocessor system control |
JPH02734B2 (en) * | 1983-10-05 | 1990-01-09 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPH023226A (en) * | 1988-06-20 | 1990-01-08 | Fujitsu Ltd | Manufacture of semiconductor device |
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