GB2127994B - Memory management unit for digital computer - Google Patents

Memory management unit for digital computer

Info

Publication number
GB2127994B
GB2127994B GB08316129A GB8316129A GB2127994B GB 2127994 B GB2127994 B GB 2127994B GB 08316129 A GB08316129 A GB 08316129A GB 8316129 A GB8316129 A GB 8316129A GB 2127994 B GB2127994 B GB 2127994B
Authority
GB
United Kingdom
Prior art keywords
management unit
memory management
digital computer
digital
computer
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.)
Expired
Application number
GB08316129A
Other languages
English (en)
Other versions
GB8316129D0 (en
GB2127994A (en
Inventor
Paul A Baker
Gary L Marten
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.)
Apple Inc
Original Assignee
Apple Computer Inc
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 Apple Computer Inc filed Critical Apple Computer Inc
Publication of GB8316129D0 publication Critical patent/GB8316129D0/en
Publication of GB2127994A publication Critical patent/GB2127994A/en
Application granted granted Critical
Publication of GB2127994B publication Critical patent/GB2127994B/en
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
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/0292—User address space allocation, e.g. contiguous or non contiguous base addressing using tables or multilevel address translation means
    • 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
    • G06F12/145—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 virtual, e.g. for virtual blocks or segments before a translation mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Memory System (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
GB08316129A 1982-09-29 1983-06-14 Memory management unit for digital computer Expired GB2127994B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42686982A 1982-09-29 1982-09-29

Publications (3)

Publication Number Publication Date
GB8316129D0 GB8316129D0 (en) 1983-07-20
GB2127994A GB2127994A (en) 1984-04-18
GB2127994B true GB2127994B (en) 1987-01-21

Family

ID=23692542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08316129A Expired GB2127994B (en) 1982-09-29 1983-06-14 Memory management unit for digital computer

Country Status (12)

Country Link
JP (1) JPS5979367A (no)
AU (1) AU559067B2 (no)
CA (1) CA1197020A (no)
DE (1) DE3333894A1 (no)
FR (1) FR2533736A1 (no)
GB (1) GB2127994B (no)
IL (1) IL69784A (no)
IN (1) IN161125B (no)
IT (1) IT1221741B (no)
NZ (1) NZ205486A (no)
SE (1) SE464052B (no)
ZA (1) ZA836384B (no)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176918B (en) * 1985-06-13 1989-11-01 Intel Corp Memory management for microprocessor system
US4972338A (en) * 1985-06-13 1990-11-20 Intel Corporation Memory management for microprocessor system
JP2522248B2 (ja) * 1986-05-24 1996-08-07 株式会社日立製作所 記憶装置アクセス機構
EP0321493A4 (en) * 1986-08-22 1991-11-21 Commonwealth Scientific And Industrial Research Organisation A content-addressable memory system
EP0262486B1 (de) * 1986-09-25 1993-11-18 Siemens Aktiengesellschaft Adressenverwaltungseinheit einer Multiprozessor-Zentralsteuereinheit eines Nachrichten-Vermittlungssystems
FR2618578A1 (fr) * 1987-07-21 1989-01-27 Digilog Systeme informatique modulaire embarque a memoire virtuelle integree
DE3901457A1 (de) * 1989-01-19 1990-08-02 Strahlen Umweltforsch Gmbh Verfahren zur adressbereichsueberwachung bei datenverarbeitungsgeraeten in echtzeit
US5617554A (en) * 1992-02-10 1997-04-01 Intel Corporation Physical address size selection and page size selection in an address translator
US5752275A (en) * 1995-03-31 1998-05-12 Intel Corporation Translation look-aside buffer including a single page size translation unit
JP2005100262A (ja) 2003-09-26 2005-04-14 Seiko Epson Corp メモリ管理装置およびメモリ管理プログラム、並びにメモリ管理方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315779B2 (no) * 1973-08-16 1978-05-27
GB1498116A (en) * 1974-04-18 1978-01-18 Honeywell Inf Systems Data processing systems
US3938100A (en) * 1974-06-07 1976-02-10 Control Data Corporation Virtual addressing apparatus for addressing the memory of a computer utilizing associative addressing techniques
US3999052A (en) * 1975-06-18 1976-12-21 International Business Machines Corporation Upper bounds address checking system for providing storage protection for a digital data processor
US4037215A (en) * 1976-04-30 1977-07-19 International Business Machines Corporation Key controlled address relocation translation system
GB1585960A (en) * 1976-07-30 1981-03-11 Plessey Co Ltd Information flow security mechanisms for data processing systems
US4093986A (en) * 1976-12-27 1978-06-06 International Business Machines Corporation Address translation with storage protection
JPS5436144A (en) * 1977-08-26 1979-03-16 Toshiba Corp Address conversion unit
DE2837241C2 (de) * 1978-08-25 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Einrichtung zum Sichern von Daten gegen unberechtigten Zugriff
US4366537A (en) * 1980-05-23 1982-12-28 International Business Machines Corp. Authorization mechanism for transfer of program control or data between different address spaces having different storage protect keys

Also Published As

Publication number Publication date
SE8305290D0 (sv) 1983-09-29
ZA836384B (en) 1984-05-30
IT8322960A0 (it) 1983-09-22
AU1894083A (en) 1984-04-05
NZ205486A (en) 1987-02-20
JPS5979367A (ja) 1984-05-08
IL69784A (en) 1986-12-31
GB8316129D0 (en) 1983-07-20
DE3333894C2 (no) 1993-04-01
SE8305290L (sv) 1984-03-30
DE3333894A1 (de) 1984-03-29
IL69784A0 (en) 1983-12-30
CA1197020A (en) 1985-11-19
GB2127994A (en) 1984-04-18
AU559067B2 (en) 1987-02-19
FR2533736A1 (fr) 1984-03-30
SE464052B (sv) 1991-02-25
IT1221741B (it) 1990-07-12
IN161125B (no) 1987-10-10

Similar Documents

Publication Publication Date Title
GB8400437D0 (en) Computer memory management system
DE3279851D1 (en) Hierarchical data storage system for digital computers
GB2149158B (en) Memory management system
DE3380322D1 (en) Computer memory
AU558400B2 (en) Memory management
GB2128000B (en) Direct memory access interface arrangement
DE3379920D1 (en) Data storage hierarchy and its use for data storage space management
GB8326610D0 (en) Computer
KR890005354B1 (en) Digital computer system
GB2129984B (en) Data processor
DE3467436D1 (en) Memory management system
GB2094524B (en) Memory management
DE3176525D1 (en) Digital data storage system
GB2127994B (en) Memory management unit for digital computer
GB8305283D0 (en) Digital data processor
GB2118402B (en) Data line interface
GB2104287B (en) Data storage devices
GB8334334D0 (en) Data processor
GB2128383B (en) Data storage unit
GB8319704D0 (en) Data memory arrangement
GB8323914D0 (en) Computer system
ZA836998B (en) Data storage unit
GB2111262B (en) Digital data storage apparatus
GB8311475D0 (en) Computer system
GB2126385B (en) Data storage

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940614