IL93584A0 - Ring reduction logic mechanism - Google Patents

Ring reduction logic mechanism

Info

Publication number
IL93584A0
IL93584A0 IL93584A IL9358490A IL93584A0 IL 93584 A0 IL93584 A0 IL 93584A0 IL 93584 A IL93584 A IL 93584A IL 9358490 A IL9358490 A IL 9358490A IL 93584 A0 IL93584 A0 IL 93584A0
Authority
IL
Israel
Prior art keywords
reduction logic
logic mechanism
ring reduction
ring
reduction
Prior art date
Application number
IL93584A
Other languages
English (en)
Original Assignee
Bull Hn Information Syst
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 Bull Hn Information Syst filed Critical Bull Hn Information Syst
Publication of IL93584A0 publication Critical patent/IL93584A0/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus
    • 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
    • G06F12/1458—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

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)
IL93584A 1989-03-31 1990-03-01 Ring reduction logic mechanism IL93584A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/332,258 US5117491A (en) 1989-03-31 1989-03-31 Ring reduction logic using parallel determination of ring numbers in a plurality of functional units and forced ring numbers by instruction decoding

Publications (1)

Publication Number Publication Date
IL93584A0 true IL93584A0 (en) 1990-12-23

Family

ID=23297438

Family Applications (1)

Application Number Title Priority Date Filing Date
IL93584A IL93584A0 (en) 1989-03-31 1990-03-01 Ring reduction logic mechanism

Country Status (10)

Country Link
US (1) US5117491A (ko)
EP (1) EP0389886B1 (ko)
JP (1) JP2535086B2 (ko)
KR (1) KR940005788B1 (ko)
CN (1) CN1021936C (ko)
AU (1) AU632542B2 (ko)
CA (1) CA2011394C (ko)
DE (1) DE69033099T2 (ko)
IL (1) IL93584A0 (ko)
YU (1) YU56290A (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07210395A (ja) * 1994-01-10 1995-08-11 Fujitsu Ltd ファームウェアメンテナンス方式
CN1094739C (zh) * 2000-04-13 2002-11-27 昆明卷烟厂 提高烟叶对糖基添加剂吸收方法
US9396015B2 (en) * 2014-10-27 2016-07-19 Ayla Networks, Inc. Flexible device templates for connected consumer devices

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258112A5 (ko) * 1973-11-30 1975-08-08 Honeywell Bull Soc Ind
FR2253425A5 (ko) * 1973-11-30 1975-06-27 Honeywell Bull Soc Ind
US3916385A (en) * 1973-12-12 1975-10-28 Honeywell Inf Systems Ring checking hardware
US4409655A (en) * 1980-04-25 1983-10-11 Data General Corporation Hierarchial memory ring protection system using comparisons of requested and previously accessed addresses
US4442484A (en) * 1980-10-14 1984-04-10 Intel Corporation Microprocessor memory management and protection mechanism
JPS6111866A (ja) * 1984-06-27 1986-01-20 Fujitsu Ltd リング保護方式
US4787031A (en) * 1985-01-04 1988-11-22 Digital Equipment Corporation Computer with virtual machine mode and multiple protection rings
US4703417A (en) * 1985-06-27 1987-10-27 Honeywell Information Systems Inc. Call instruction for ring crossing architecture
US4866599A (en) * 1985-06-27 1989-09-12 Bull Hn Information Systems Inc. Call instruction, return instruction and trap procedure for ring crossing architecture
US4858117A (en) * 1987-08-07 1989-08-15 Bull Hn Information Systems Inc. Apparatus and method for preventing computer access by unauthorized personnel
US4980819A (en) * 1988-12-19 1990-12-25 Bull Hn Information Systems Inc. Mechanism for automatically updating multiple unit register file memories in successive cycles for a pipelined processing system

Also Published As

Publication number Publication date
CN1021936C (zh) 1993-08-25
YU56290A (sh) 1994-04-05
DE69033099T2 (de) 2000-01-05
CA2011394A1 (en) 1990-09-30
CN1045473A (zh) 1990-09-19
EP0389886A3 (en) 1991-12-11
AU632542B2 (en) 1993-01-07
KR900015005A (ko) 1990-10-25
JP2535086B2 (ja) 1996-09-18
JPH02287649A (ja) 1990-11-27
KR940005788B1 (ko) 1994-06-23
EP0389886A2 (en) 1990-10-03
US5117491A (en) 1992-05-26
EP0389886B1 (en) 1999-05-12
DE69033099D1 (de) 1999-06-17
AU5116190A (en) 1990-10-04
CA2011394C (en) 1994-06-28

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Legal Events

Date Code Title Description
RH Patent void