GB1577592A - Data processing apparatus - Google Patents

Data processing apparatus Download PDF

Info

Publication number
GB1577592A
GB1577592A GB46397/77A GB4639777A GB1577592A GB 1577592 A GB1577592 A GB 1577592A GB 46397/77 A GB46397/77 A GB 46397/77A GB 4639777 A GB4639777 A GB 4639777A GB 1577592 A GB1577592 A GB 1577592A
Authority
GB
United Kingdom
Prior art keywords
circuit
storage
signal
address
register
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
GB46397/77A
Other languages
English (en)
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 GB1577592A publication Critical patent/GB1577592A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G06F12/0615—Address space extension
    • G06F12/0623—Address space extension for memory modules
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1081—Address translation for peripheral access to main memory, e.g. direct memory access [DMA]

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)
  • Executing Machine-Instructions (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
GB46397/77A 1976-12-27 1977-11-08 Data processing apparatus Expired GB1577592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/754,392 US4093986A (en) 1976-12-27 1976-12-27 Address translation with storage protection

Publications (1)

Publication Number Publication Date
GB1577592A true GB1577592A (en) 1980-10-29

Family

ID=25034598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46397/77A Expired GB1577592A (en) 1976-12-27 1977-11-08 Data processing apparatus

Country Status (7)

Country Link
US (1) US4093986A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5382233A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7708664A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2755656A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2375656A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1577592A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1113840B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127994A (en) * 1982-09-29 1984-04-18 Apple Computer Memory management unit for digital computer
US4926316A (en) * 1982-09-29 1990-05-15 Apple Computer, Inc. Memory management unit with overlapping control for accessing main memory of a digital computer

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241401A (en) * 1977-12-19 1980-12-23 Sperry Corporation Virtual address translator utilizing interrupt level code
US4447877A (en) * 1978-11-08 1984-05-08 Data General Corporation Memory bus interface system
DE2939197A1 (de) * 1979-09-27 1981-04-16 Siemens AG, 1000 Berlin und 8000 München Signalverarbeitungsvorrichtung, insbesondere fuer herzschrittmacher
US4332009A (en) * 1980-01-21 1982-05-25 Mostek Corporation Memory protection system
US4388695A (en) * 1980-02-21 1983-06-14 Timeplex, Inc. Hardware memory write lock circuit
US5029072A (en) * 1985-12-23 1991-07-02 Motorola, Inc. Lock warning mechanism for a cache
US5201039A (en) * 1987-09-30 1993-04-06 Mitsubishi Denki Kabushiki Kaisha Multiple address-space data processor with addressable register and context switching
US4965720A (en) * 1988-07-18 1990-10-23 International Business Machines Corporation Directed address generation for virtual-address data processors
JP2778291B2 (ja) * 1991-05-31 1998-07-23 日本電気株式会社 アドレス変換レジスタ制御方式
KR101198400B1 (ko) * 2008-12-16 2012-11-07 한국전자통신연구원 메모리 관리 장치 및 방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530438A (en) * 1965-12-13 1970-09-22 Sperry Rand Corp Task control
US3528062A (en) * 1968-07-05 1970-09-08 Ibm Program interlock arrangement,including task suspension and new task assignment
GB1410631A (en) * 1972-01-26 1975-10-22 Plessey Co Ltd Data processing system interrupt arrangements
US3839706A (en) * 1973-07-02 1974-10-01 Ibm Input/output channel relocation storage protect mechanism
JPS5026433A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-07-06 1975-03-19
FR122199A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-12-17
US3909798A (en) * 1974-01-25 1975-09-30 Raytheon Co Virtual addressing method and apparatus
FR119649A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1975-03-24
US4017839A (en) * 1975-06-30 1977-04-12 Honeywell Information Systems, Inc. Input/output multiplexer security system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127994A (en) * 1982-09-29 1984-04-18 Apple Computer Memory management unit for digital computer
US4926316A (en) * 1982-09-29 1990-05-15 Apple Computer, Inc. Memory management unit with overlapping control for accessing main memory of a digital computer

Also Published As

Publication number Publication date
FR2375656A1 (fr) 1978-07-21
IT1113840B (it) 1986-01-27
US4093986A (en) 1978-06-06
DE2755656A1 (de) 1978-06-29
FR2375656B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-08-22
JPS5733639B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-07-17
JPS5382233A (en) 1978-07-20
BR7708664A (pt) 1979-07-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee