FR2315146A1 - Systeme de verification d'adresse de limite superieure de memoire - Google Patents

Systeme de verification d'adresse de limite superieure de memoire

Info

Publication number
FR2315146A1
FR2315146A1 FR7614184A FR7614184A FR2315146A1 FR 2315146 A1 FR2315146 A1 FR 2315146A1 FR 7614184 A FR7614184 A FR 7614184A FR 7614184 A FR7614184 A FR 7614184A FR 2315146 A1 FR2315146 A1 FR 2315146A1
Authority
FR
France
Prior art keywords
verification system
upper memory
address verification
limit address
memory limit
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.)
Granted
Application number
FR7614184A
Other languages
English (en)
Other versions
FR2315146B1 (fr
Inventor
David N Gooding
Everett M Shim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2315146A1 publication Critical patent/FR2315146A1/fr
Application granted granted Critical
Publication of FR2315146B1 publication Critical patent/FR2315146B1/fr
Granted 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)
  • Debugging And Monitoring (AREA)
  • Executing Machine-Instructions (AREA)
FR7614184A 1975-06-18 1976-05-06 Systeme de verification d'adresse de limite superieure de memoire Granted FR2315146A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/587,936 US3999052A (en) 1975-06-18 1975-06-18 Upper bounds address checking system for providing storage protection for a digital data processor

Publications (2)

Publication Number Publication Date
FR2315146A1 true FR2315146A1 (fr) 1977-01-14
FR2315146B1 FR2315146B1 (fr) 1979-09-21

Family

ID=24351784

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614184A Granted FR2315146A1 (fr) 1975-06-18 1976-05-06 Systeme de verification d'adresse de limite superieure de memoire

Country Status (5)

Country Link
US (1) US3999052A (fr)
JP (1) JPS5914770B2 (fr)
DE (1) DE2625113C2 (fr)
FR (1) FR2315146A1 (fr)
GB (1) GB1523005A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133028A (en) * 1976-10-01 1979-01-02 Data General Corporation Data processing system having a cpu register file and a memory address register separate therefrom
DE2842548A1 (de) * 1978-09-29 1980-04-10 Siemens Ag Programmierbare speicherschutzlogik fuer mikroprozessorsysteme
US4430711A (en) 1980-05-30 1984-02-07 Signetics Corporation Central processing unit
US4627017A (en) * 1980-10-22 1986-12-02 International Business Machines Corporation Address range determination
JPS58149548A (ja) * 1982-03-02 1983-09-05 Hitachi Ltd メモリ制御方式
US4592005A (en) * 1982-07-06 1986-05-27 Sperry Corporation Masked arithmetic logic unit
GB2127994B (en) * 1982-09-29 1987-01-21 Apple Computer Memory management unit for digital computer
JPS59125462A (ja) * 1982-12-30 1984-07-19 Fujitsu Ltd ボリユ−ム管理情報の保護方式
US5101370A (en) * 1990-07-26 1992-03-31 Unisys Corporation Programmable digital accumulate and scale circuit
JPH05507378A (ja) * 1990-11-02 1993-10-21 アナログ・ディバイセス・インコーポレーテッド 循環バッファ用アドレス・ジェネレータ
US5623621A (en) * 1990-11-02 1997-04-22 Analog Devices, Inc. Apparatus for generating target addresses within a circular buffer including a register for storing position and size of the circular buffer
US5787492A (en) * 1996-04-09 1998-07-28 International Business Machines Corporation Address limit check apparatus with conditional carry logic
US5949972A (en) * 1996-08-23 1999-09-07 Compuware Corporation System for memory error checking in an executable
US6583945B1 (en) 1998-10-30 2003-06-24 Iomega Corporation Method for irreversibly write-securing a magnetic storage cartridge
JP2001022637A (ja) * 1999-07-07 2001-01-26 Fujitsu Ltd メモリ制御装置及び情報処理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986929A (en) * 1961-06-08 1965-03-24 Decca Ltd Improvements in or relating to data processing apparatus
FR2184284A5 (fr) * 1972-05-05 1973-12-21 Siemens Ag
US3863061A (en) * 1973-08-16 1975-01-28 Us Navy Alu with end-around carry derived from auxiliary unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639912A (en) * 1969-04-16 1972-02-01 Honeywell Inf Systems Management control subsystem for multiprogrammed data processing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986929A (en) * 1961-06-08 1965-03-24 Decca Ltd Improvements in or relating to data processing apparatus
FR2184284A5 (fr) * 1972-05-05 1973-12-21 Siemens Ag
US3863061A (en) * 1973-08-16 1975-01-28 Us Navy Alu with end-around carry derived from auxiliary unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PUBLICATION US: "IBM TECHNICAL DISCLOSURE BULLETIN" VOL. 16, NO. 7, DECEMBRE 1973, PAGES 2136 ET 2137 ARTICLE: "RANGE CHECK OF AN ADDRESS COUNTER" ENGER ) *

Also Published As

Publication number Publication date
USB587936I5 (fr) 1976-03-23
FR2315146B1 (fr) 1979-09-21
US3999052A (en) 1976-12-21
DE2625113C2 (de) 1984-01-05
JPS522227A (en) 1977-01-08
DE2625113A1 (de) 1976-12-30
JPS5914770B2 (ja) 1984-04-06
GB1523005A (en) 1978-08-31

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Legal Events

Date Code Title Description
ST Notification of lapse