JPS5140772B2 - - Google Patents

Info

Publication number
JPS5140772B2
JPS5140772B2 JP46055196A JP5519671A JPS5140772B2 JP S5140772 B2 JPS5140772 B2 JP S5140772B2 JP 46055196 A JP46055196 A JP 46055196A JP 5519671 A JP5519671 A JP 5519671A JP S5140772 B2 JPS5140772 B2 JP S5140772B2
Authority
JP
Japan
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.)
Expired
Application number
JP46055196A
Other versions
JPS4829327A (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP46055196A priority Critical patent/JPS5140772B2/ja
Priority to US00275164A priority patent/US3803559A/en
Publication of JPS4829327A publication Critical patent/JPS4829327A/ja
Publication of JPS5140772B2 publication Critical patent/JPS5140772B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
    • G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
    • G06F12/1441—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a range

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Executing Machine-Instructions (AREA)
JP46055196A 1971-07-26 1971-07-26 Expired JPS5140772B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP46055196A JPS5140772B2 (ja) 1971-07-26 1971-07-26
US00275164A US3803559A (en) 1971-07-26 1972-07-26 Memory protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46055196A JPS5140772B2 (ja) 1971-07-26 1971-07-26

Publications (2)

Publication Number Publication Date
JPS4829327A JPS4829327A (ja) 1973-04-18
JPS5140772B2 true JPS5140772B2 (ja) 1976-11-05

Family

ID=12991918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46055196A Expired JPS5140772B2 (ja) 1971-07-26 1971-07-26

Country Status (2)

Country Link
US (1) US3803559A (ja)
JP (1) JPS5140772B2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148832U (ja) * 1981-03-13 1981-11-09
JPS6142259Y2 (ja) * 1981-03-13 1986-12-01

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964026A (en) * 1973-05-22 1976-06-15 Nissan Motor Co., Ltd. Sequence block display system
FR2258112A5 (ja) * 1973-11-30 1975-08-08 Honeywell Bull Soc Ind
JPS50147634A (ja) * 1974-05-17 1975-11-26
JPS5821303B2 (ja) * 1975-12-27 1983-04-28 横河電機株式会社 デ−タシヨリソウチ
JPS5282043A (en) * 1975-12-29 1977-07-08 Fujitsu Ltd Data processing unit runaway detection
US4087856A (en) * 1976-06-30 1978-05-02 International Business Machines Corporation Location dependence for assuring the security of system-control operations
JPS53102645A (en) * 1977-02-18 1978-09-07 Toko Inc Computer for developing program
US4409655A (en) * 1980-04-25 1983-10-11 Data General Corporation Hierarchial memory ring protection system using comparisons of requested and previously accessed addresses
JPS58206469A (ja) * 1982-05-27 1983-12-01 Kanto Jidosha Kogyo Kk 貨物車両
JPS5992500A (ja) * 1982-11-18 1984-05-28 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション デ−タ処理装置の保護システム
US4589065A (en) * 1983-06-30 1986-05-13 International Business Machines Corporation Mechanism for implementing one machine cycle executable trap instructions in a primitive instruction set computing system
JPS60222935A (ja) * 1984-04-20 1985-11-07 Nec Corp デ−タ破壊自動検出制御方式
JPS60254329A (ja) * 1984-05-31 1985-12-16 Fujitsu Ltd 情報処理装置のプロテクシヨン方式
US4835733A (en) * 1985-09-30 1989-05-30 Sgs-Thomson Microelectronics, Inc. Programmable access memory
US4975878A (en) * 1988-01-28 1990-12-04 National Semiconductor Programmable memory data protection scheme
JPH01201751A (ja) * 1988-02-05 1989-08-14 Matsushita Electric Ind Co Ltd メモリー保護装置
JPH01219982A (ja) * 1988-02-29 1989-09-01 Hitachi Maxell Ltd Ｉｃカード
JPH02202642A (ja) * 1989-02-01 1990-08-10 Toshiba Corp プログラム動作監視装置
US5546561A (en) * 1991-02-11 1996-08-13 Intel Corporation Circuitry and method for selectively protecting the integrity of data stored within a range of addresses within a non-volatile semiconductor memory
JPH04321146A (ja) * 1991-04-22 1992-11-11 Fujitsu Ltd 記憶保護方式
US5237616A (en) * 1992-09-21 1993-08-17 International Business Machines Corporation Secure computer system having privileged and unprivileged memories
US5513337A (en) * 1994-05-25 1996-04-30 Intel Corporation System for protecting unauthorized memory accesses by comparing base memory address with mask bits and having attribute bits for identifying access operational mode and type
US6233667B1 (en) * 1999-03-05 2001-05-15 Sun Microsystems, Inc. Method and apparatus for a high-performance embedded memory management unit
JP4522548B2 (ja) * 2000-03-10 2010-08-11 富士通フロンテック株式会社 アクセス監視装置及びアクセス監視方法
JP3710671B2 (ja) * 2000-03-14 2005-10-26 シャープ株式会社 １チップマイクロコンピュータ及びそれを用いたｉｃカード、並びに１チップマイクロコンピュータのアクセス制御方法
FR2811096A1 (fr) * 2000-06-28 2002-01-04 St Microelectronics Sa Microprocesseur securise comprenant un systeme d'attribution de droits a des librairies
US20060168414A1 (en) * 2005-01-25 2006-07-27 Micron Technology, Inc. Memory block locking apparatus and methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148832U (ja) * 1981-03-13 1981-11-09
JPS6142259Y2 (ja) * 1981-03-13 1986-12-01

Also Published As

Publication number Publication date
US3803559A (en) 1974-04-09
JPS4829327A (ja) 1973-04-18

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