JPS5412643A - Main memory protective device - Google Patents
Main memory protective deviceInfo
- Publication number
- JPS5412643A JPS5412643A JP7837077A JP7837077A JPS5412643A JP S5412643 A JPS5412643 A JP S5412643A JP 7837077 A JP7837077 A JP 7837077A JP 7837077 A JP7837077 A JP 7837077A JP S5412643 A JPS5412643 A JP S5412643A
- Authority
- JP
- Japan
- Prior art keywords
- main memory
- protective device
- memory protective
- writing
- inhibition
- 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 secure the writing inhibition to the region containing the main memory regardless of the state of the key, by providing the writing control bit to the region to designate the inhibition of the writing.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7837077A JPS5412643A (en) | 1977-06-30 | 1977-06-30 | Main memory protective device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7837077A JPS5412643A (en) | 1977-06-30 | 1977-06-30 | Main memory protective device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5412643A true JPS5412643A (en) | 1979-01-30 |
Family
ID=13660111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7837077A Pending JPS5412643A (en) | 1977-06-30 | 1977-06-30 | Main memory protective device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5412643A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5679348A (en) * | 1979-11-30 | 1981-06-29 | Hitachi Ltd | Memory protective system |
JPS5699945U (en) * | 1979-12-27 | 1981-08-06 | ||
JPS60120451A (en) * | 1983-12-05 | 1985-06-27 | Fujitsu Ltd | Memory protection in unit of word |
JPS60129860A (en) * | 1983-12-19 | 1985-07-11 | Hitachi Ltd | Detection system for addressing exception |
JPS6111382A (en) * | 1984-06-22 | 1986-01-18 | 財団法人 電力中央研究所 | Method of storing petroleum |
JPS628987U (en) * | 1985-06-29 | 1987-01-20 | ||
JPH09138733A (en) * | 1995-11-14 | 1997-05-27 | Hokkaido Nippon Denki Software Kk | Protective system for magnetic disk device |
WO2002077826A1 (en) * | 2001-03-22 | 2002-10-03 | Sony Computer Entertainment Inc. | Memory protection system and method for computer architecture for broadband networks |
US6809734B2 (en) | 2001-03-22 | 2004-10-26 | Sony Computer Entertainment Inc. | Resource dedication system and method for a computer architecture for broadband networks |
US6826662B2 (en) | 2001-03-22 | 2004-11-30 | Sony Computer Entertainment Inc. | System and method for data synchronization for a computer architecture for broadband networks |
US7093104B2 (en) | 2001-03-22 | 2006-08-15 | Sony Computer Entertainment Inc. | Processing modules for computer architecture for broadband networks |
US7231500B2 (en) | 2001-03-22 | 2007-06-12 | Sony Computer Entertainment Inc. | External data interface in a computer architecture for broadband networks |
US7233998B2 (en) | 2001-03-22 | 2007-06-19 | Sony Computer Entertainment Inc. | Computer architecture and software cells for broadband networks |
-
1977
- 1977-06-30 JP JP7837077A patent/JPS5412643A/en active Pending
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5679348A (en) * | 1979-11-30 | 1981-06-29 | Hitachi Ltd | Memory protective system |
JPS6229826B2 (en) * | 1979-11-30 | 1987-06-29 | Hitachi Ltd | |
JPS5699945U (en) * | 1979-12-27 | 1981-08-06 | ||
JPS60120451A (en) * | 1983-12-05 | 1985-06-27 | Fujitsu Ltd | Memory protection in unit of word |
JPS60129860A (en) * | 1983-12-19 | 1985-07-11 | Hitachi Ltd | Detection system for addressing exception |
JPS6111382A (en) * | 1984-06-22 | 1986-01-18 | 財団法人 電力中央研究所 | Method of storing petroleum |
JPS628987U (en) * | 1985-06-29 | 1987-01-20 | ||
JPH09138733A (en) * | 1995-11-14 | 1997-05-27 | Hokkaido Nippon Denki Software Kk | Protective system for magnetic disk device |
WO2002077826A1 (en) * | 2001-03-22 | 2002-10-03 | Sony Computer Entertainment Inc. | Memory protection system and method for computer architecture for broadband networks |
US6526491B2 (en) | 2001-03-22 | 2003-02-25 | Sony Corporation Entertainment Inc. | Memory protection system and method for computer architecture for broadband networks |
US6809734B2 (en) | 2001-03-22 | 2004-10-26 | Sony Computer Entertainment Inc. | Resource dedication system and method for a computer architecture for broadband networks |
US6826662B2 (en) | 2001-03-22 | 2004-11-30 | Sony Computer Entertainment Inc. | System and method for data synchronization for a computer architecture for broadband networks |
US7093104B2 (en) | 2001-03-22 | 2006-08-15 | Sony Computer Entertainment Inc. | Processing modules for computer architecture for broadband networks |
US7139882B2 (en) | 2001-03-22 | 2006-11-21 | Sony Computer Entertainment Inc. | Memory protection system and method for computer architecture for broadband networks |
US7231500B2 (en) | 2001-03-22 | 2007-06-12 | Sony Computer Entertainment Inc. | External data interface in a computer architecture for broadband networks |
US7233998B2 (en) | 2001-03-22 | 2007-06-19 | Sony Computer Entertainment Inc. | Computer architecture and software cells for broadband networks |
US7457939B2 (en) | 2001-03-22 | 2008-11-25 | Sony Computer Entertainment Inc. | Processing system with dedicated local memories and busy identification |
US7720982B2 (en) | 2001-03-22 | 2010-05-18 | Sony Computer Entertainment Inc. | Computer architecture and software cells for broadband networks |
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