JPS6428759A - Memory protecting system - Google Patents
Memory protecting systemInfo
- Publication number
- JPS6428759A JPS6428759A JP18331687A JP18331687A JPS6428759A JP S6428759 A JPS6428759 A JP S6428759A JP 18331687 A JP18331687 A JP 18331687A JP 18331687 A JP18331687 A JP 18331687A JP S6428759 A JPS6428759 A JP S6428759A
- Authority
- JP
- Japan
- Prior art keywords
- space
- virtual
- real
- address
- alpha
- 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
- Storage Device Security (AREA)
Abstract
PURPOSE:To extend the addresses of a virtual space and a real space by dividing the virtual space in two of VA and VB, dividing the real space into two of RA, and RB and protecting a storage to a space pair VA-RA and VB-RB obtained by an address conversion. CONSTITUTION:The virtual space is divided into the two of the virtual space VA of the part of a virtual address 0 to alpha-1 and the partial virtual space VB from a virtual address alpha to M and a boundary address (alpha) is held in a virtual space boundary register VBNND 3. The real space 2 is also divided into the two of the partial real space RA from a real address 0 to beta-1 and the partial real space RB from a real address beta to N and held in a boundary register RBND 4. Then, according to the address conversion, the space VA is mapped on the RA ad and the space VB on the RB, in the space pair VA-RA, the memory is protected in a main storing key 5 disposed for every block of the space RA and in the space pair VB-RB, the memory is protected for every space VB.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18331687A JPS6428759A (en) | 1987-07-24 | 1987-07-24 | Memory protecting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18331687A JPS6428759A (en) | 1987-07-24 | 1987-07-24 | Memory protecting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6428759A true JPS6428759A (en) | 1989-01-31 |
Family
ID=16133566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18331687A Pending JPS6428759A (en) | 1987-07-24 | 1987-07-24 | Memory protecting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6428759A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19681353B4 (en) * | 1996-02-22 | 2004-09-30 | Il Hwa Co. Ltd., Guri | Ginsenoside Mc, an intestinal flora metabolite of ginseng saponin - and use of ginsenoside M, two other 20(S)-protopanaxadiol derivatives or 20(S)-protopanaxatriol as anticancer agents |
-
1987
- 1987-07-24 JP JP18331687A patent/JPS6428759A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19681353B4 (en) * | 1996-02-22 | 2004-09-30 | Il Hwa Co. Ltd., Guri | Ginsenoside Mc, an intestinal flora metabolite of ginseng saponin - and use of ginsenoside M, two other 20(S)-protopanaxadiol derivatives or 20(S)-protopanaxatriol as anticancer agents |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES8702011A1 (en) | Address translation control system. | |
EP0251056A3 (en) | Cache tag lookaside | |
NO870415D0 (en) | COMPUTER SYSTEM. | |
AU540594B2 (en) | Memory protection system | |
GB1438039A (en) | Data processing systems | |
GB1468929A (en) | Data processing systems | |
JPS6428759A (en) | Memory protecting system | |
KR890005614A (en) | Virtual Memory Control Management System | |
WO2000036513A3 (en) | A memory address translation system and method for a memory having multiple storage units | |
JPS5466727A (en) | Access control system for buffer memory | |
JPS5533214A (en) | Information processing system | |
JPS5755581A (en) | Address converting system | |
JPS56163570A (en) | Multiple imaginary storage control system for multiple virtual computer system | |
ES8705672A1 (en) | Disk controller with shared address register. | |
FR2250449A5 (en) | Protection system for data processor interruption - has double memory bank with each bank divided into two parts | |
JPS5698766A (en) | Virtual memory control system | |
EP0206050A3 (en) | Virtually addressed cache memory with physical tags | |
JPS5235947A (en) | Information processing unit for imaginary memory system | |
JPS6467652A (en) | Cache memory eliminating data discordance | |
DE3572553D1 (en) | Data-processing systems with virtual storage addressing for a plurality of users | |
JPS55105761A (en) | Address conversion system | |
JPS5558874A (en) | Information processing system | |
JPS5644178A (en) | Buffer memory control system | |
JPS5475938A (en) | Data processor of multiplex artificial memory system | |
JPS5474635A (en) | Control system for table lookaside buffer |