JPS6423350A - Information processor - Google Patents
Information processorInfo
- Publication number
- JPS6423350A JPS6423350A JP62179033A JP17903387A JPS6423350A JP S6423350 A JPS6423350 A JP S6423350A JP 62179033 A JP62179033 A JP 62179033A JP 17903387 A JP17903387 A JP 17903387A JP S6423350 A JPS6423350 A JP S6423350A
- Authority
- JP
- Japan
- Prior art keywords
- address
- working
- area
- higher level
- operating system
- 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 prevent the destruction of data by using a memory means containing the hardware which decides an applicable allocated area. CONSTITUTION:The information on a working area 4 or 5 is stored by a setting means 20 in accordance with a working user or a working operating system. Then a fixed value is produced as a higher level address to be given to an address decoder 6. A CPU 1 gives a desired address to the working operating system via an address signal line 8 in order to give an access to the memory area of a magnetic disk 13. The higher level address given to the decoder 6 is fixed by securing such a mechanism where a register 7 could not be rewritten by a system program nor a user program. Thus the data are never destructed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62179033A JPS6423350A (en) | 1987-07-20 | 1987-07-20 | Information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62179033A JPS6423350A (en) | 1987-07-20 | 1987-07-20 | Information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6423350A true JPS6423350A (en) | 1989-01-26 |
Family
ID=16058939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62179033A Pending JPS6423350A (en) | 1987-07-20 | 1987-07-20 | Information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6423350A (en) |
-
1987
- 1987-07-20 JP JP62179033A patent/JPS6423350A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0251056A3 (en) | Cache tag lookaside | |
EP0285346A3 (en) | Cache memory device | |
EP0387888A3 (en) | Microprocessor system having an extended address space | |
JPS55154635A (en) | Data processor | |
JPS6423350A (en) | Information processor | |
KR910005570A (en) | Programmable Subframe PWM Circuit | |
JPS5443630A (en) | Memory access control system | |
JPS567162A (en) | Memory sharing device for arithmetic control unit | |
JPS55124806A (en) | Sequencing circuit of microcomputer | |
JPS5614358A (en) | Operation log storing system | |
JPS55157054A (en) | Disc cash unit | |
JPS5567865A (en) | Electronic desk computer | |
JPS6436339A (en) | Self-diagnosis system | |
JPS53136436A (en) | Screen-split controller | |
EP0943998A3 (en) | Cache memory apparatus | |
JPS563485A (en) | Buffer memory device | |
JPS5618787A (en) | Time counting system | |
JPS6437623A (en) | Data processor | |
JPS54119846A (en) | Memory unit | |
JPS57120163A (en) | Computer system | |
JPS5385125A (en) | Refresh memory read/write control system in display unit | |
JPS56101250A (en) | Data processor | |
JPS51142939A (en) | Data processor | |
JPS54146927A (en) | Display system of data input device | |
JPS6467653A (en) | Cache memory for set associative system |