NO940148L - Fremgangsmåte for administrasjon av hukommelse - Google Patents

Fremgangsmåte for administrasjon av hukommelse

Info

Publication number
NO940148L
NO940148L NO940148A NO940148A NO940148L NO 940148 L NO940148 L NO 940148L NO 940148 A NO940148 A NO 940148A NO 940148 A NO940148 A NO 940148A NO 940148 L NO940148 L NO 940148L
Authority
NO
Norway
Prior art keywords
memory
rom
address areas
roms
reallocated
Prior art date
Application number
NO940148A
Other languages
English (en)
Other versions
NO940148D0 (no
Inventor
Dan Spear
Larry Mayer
Original Assignee
Quarterdeck Office Systems 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 Quarterdeck Office Systems Inc filed Critical Quarterdeck Office Systems Inc
Publication of NO940148D0 publication Critical patent/NO940148D0/no
Publication of NO940148L publication Critical patent/NO940148L/no

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
    • G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
    • G06F12/1491—Protection against unauthorised use of memory or access to memory by checking the subject access rights in a hierarchical protection system, e.g. privilege levels, memory rings
    • 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
    • G06F12/0223—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

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)
  • Communication Control (AREA)
  • Storage Device Security (AREA)
  • Debugging And Monitoring (AREA)
  • Memory System (AREA)
  • Stored Programmes (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Executing Machine-Instructions (AREA)

Abstract

Det beskrives en fremgangsmåte for å øke mengden av direkte adresserbare minneadresser som kan tilordnes (allokeres) til RAM. En initiali- seringsrutine utfares for å identifisere ROMer i reserverte minneadresseområder som skal reallokeres. Passende adresseområder i utvidet minne identifise- res, og ROMene avbildes (flyttes) til adresseområder i utvidet minne. En omdirigeringsrutine for ROM- tilgang er tilveiebrakt for å fange opp ROM-akses- ser, og for å omdirigere dem til det reallokerte adresseområdet. En håndteringsrutine for ROM- tilgang er tilveiebrakt for å omhylle ROM-eksekve- ringen, og for å tilbakestille datamaskinsystemet til en tilstand hvor det kan fortsette utførelse av bruker- (applikasjons-) eller systemprogramvare etter at ROM-tilgangen er fullført. Minneadresser i reserverte adresseområder tidligere allokert til ROMer kan reallokeres til RAM eller andre minne- enheter.
NO940148A 1991-07-15 1994-01-14 Fremgangsmåte for administrasjon av hukommelse NO940148L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/730,244 US5237669A (en) 1991-07-15 1991-07-15 Memory management method
PCT/US1992/005925 WO1993002417A1 (en) 1991-07-15 1992-07-15 Memory management method

Publications (2)

Publication Number Publication Date
NO940148D0 NO940148D0 (no) 1994-01-14
NO940148L true NO940148L (no) 1994-03-14

Family

ID=24934552

Family Applications (1)

Application Number Title Priority Date Filing Date
NO940148A NO940148L (no) 1991-07-15 1994-01-14 Fremgangsmåte for administrasjon av hukommelse

Country Status (12)

Country Link
US (2) US5237669A (no)
EP (1) EP0595880B1 (no)
JP (2) JP3268310B2 (no)
KR (1) KR0132696B1 (no)
AT (1) ATE174137T1 (no)
AU (1) AU2339592A (no)
BR (1) BR9206286A (no)
CA (1) CA2113565C (no)
DE (1) DE69227774T2 (no)
FI (1) FI940168A7 (no)
NO (1) NO940148L (no)
WO (1) WO1993002417A1 (no)

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Also Published As

Publication number Publication date
JP3571667B2 (ja) 2004-09-29
DE69227774D1 (de) 1999-01-14
FI940168A0 (fi) 1994-01-13
US5367658A (en) 1994-11-22
CA2113565A1 (en) 1993-01-16
JPH06508952A (ja) 1994-10-06
DE69227774T2 (de) 1999-07-22
AU2339592A (en) 1993-02-23
WO1993002417A1 (en) 1993-02-04
EP0595880B1 (en) 1998-12-02
CA2113565C (en) 1998-05-05
ATE174137T1 (de) 1998-12-15
BR9206286A (pt) 1994-11-08
US5237669A (en) 1993-08-17
JP2002024003A (ja) 2002-01-25
KR0132696B1 (ko) 1998-04-24
EP0595880A1 (en) 1994-05-11
FI940168A7 (fi) 1994-03-04
NO940148D0 (no) 1994-01-14
JP3268310B2 (ja) 2002-03-25
EP0595880A4 (en) 1997-07-02

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