IT1165345B - Apparecchiatura per la manipolazione di puntatori contrassegnati - Google Patents

Apparecchiatura per la manipolazione di puntatori contrassegnati

Info

Publication number
IT1165345B
IT1165345B IT26080/79A IT2608079A IT1165345B IT 1165345 B IT1165345 B IT 1165345B IT 26080/79 A IT26080/79 A IT 26080/79A IT 2608079 A IT2608079 A IT 2608079A IT 1165345 B IT1165345 B IT 1165345B
Authority
IT
Italy
Prior art keywords
pointers
marked
handling
equipment
marked pointers
Prior art date
Application number
IT26080/79A
Other languages
English (en)
Other versions
IT7926080A0 (it
Inventor
Glen Robert Mitchell
William George Kempke
Eugene Reese Jones
Merle Edward Houdek
James Gregory Ranweiler
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of IT7926080A0 publication Critical patent/IT7926080A0/it
Application granted granted Critical
Publication of IT1165345B publication Critical patent/IT1165345B/it

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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3004—Arrangements for executing specific machine instructions to perform operations on memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Executing Machine-Instructions (AREA)
IT26080/79A 1978-10-23 1979-09-28 Apparecchiatura per la manipolazione di puntatori contrassegnati IT1165345B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/953,666 US4241396A (en) 1978-10-23 1978-10-23 Tagged pointer handling apparatus

Publications (2)

Publication Number Publication Date
IT7926080A0 IT7926080A0 (it) 1979-09-28
IT1165345B true IT1165345B (it) 1987-04-22

Family

ID=25494363

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26080/79A IT1165345B (it) 1978-10-23 1979-09-28 Apparecchiatura per la manipolazione di puntatori contrassegnati

Country Status (5)

Country Link
US (1) US4241396A (it)
EP (1) EP0010186B1 (it)
JP (1) JPS6017135B2 (it)
DE (1) DE2961891D1 (it)
IT (1) IT1165345B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162167A (en) * 1979-06-05 1980-12-17 Canon Inc Electronic program computer
US4574351A (en) * 1983-03-03 1986-03-04 International Business Machines Corporation Apparatus for compressing and buffering data
US4757440A (en) * 1984-04-02 1988-07-12 Unisys Corporation Pipelined data stack with access through-checking
US4896258A (en) * 1985-07-04 1990-01-23 Hitachi, Ltd. Data processor provided with instructions which refer to both tagged and tagless data
US4807124A (en) * 1986-09-26 1989-02-21 Performance Semiconductor Corporation Register addressing system for efficient microroutine sharing and optimization
JP2613223B2 (ja) * 1987-09-10 1997-05-21 株式会社日立製作所 演算装置
JPH0820944B2 (ja) * 1989-03-20 1996-03-04 株式会社日立製作所 電子化情報作成装置
EP0438011A3 (en) * 1990-01-18 1993-05-19 International Business Machines Corporation Logic on main storage memory cards for insertion and extraction of tag bits
US5201056A (en) * 1990-05-02 1993-04-06 Motorola, Inc. RISC microprocessor architecture with multi-bit tag extended instructions for selectively attaching tag from either instruction or input data to arithmetic operation output
US5325496A (en) * 1991-12-24 1994-06-28 Intel Corporation Selectable pointer validation in a computer system
DE4235310C2 (de) * 1992-10-20 1996-07-11 Knorr Bremse Ag Vorrichtung zur Parallelführung des Bremsklotzschuhs einer Klotzbremse
US5845331A (en) * 1994-09-28 1998-12-01 Massachusetts Institute Of Technology Memory system including guarded pointers
DE19701166A1 (de) 1997-01-15 1998-07-23 Siemens Ag Verfahren zur Überwachung der bestimmungsgemäßen Ausführung von Softwareprogrammen
US7555703B2 (en) * 2004-06-17 2009-06-30 Intel Corporation Method and apparatus for reducing false error detection in a microprocessor
WO2006052703A2 (en) * 2004-11-04 2006-05-18 Board Of Trustees Of Michigan State University Secure bit
US8166279B2 (en) 2007-05-03 2012-04-24 International Business Machines Corporation Method for predictive decoding of a load tagged pointer instruction
US8095777B2 (en) * 2007-11-01 2012-01-10 International Business Machines Corporation Structure for predictive decoding
US7849293B2 (en) * 2008-01-31 2010-12-07 International Business Machines Corporation Method and structure for low latency load-tagged pointer instruction for computer microarchitechture
GB2572158B (en) * 2018-03-20 2020-11-25 Advanced Risc Mach Ltd Random tag setting instruction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328768A (en) * 1964-04-06 1967-06-27 Ibm Storage protection systems
US3398405A (en) * 1965-06-07 1968-08-20 Burroughs Corp Digital computer with memory lock operation
US3405394A (en) * 1965-12-22 1968-10-08 Ibm Controlled register accessing
US3573736A (en) * 1968-01-15 1971-04-06 Ibm Interruption and interlock arrangement
US3611310A (en) * 1969-07-30 1971-10-05 Burroughs Corp Discriminating store operator method and apparatus for data processors
US3731285A (en) * 1971-10-12 1973-05-01 C Bell Homogeneous memory for digital computer systems
US3920976A (en) * 1974-08-19 1975-11-18 Sperry Rand Corp Information storage security system
US4104721A (en) * 1976-12-30 1978-08-01 International Business Machines Corporation Hierarchical security mechanism for dynamically assigning security levels to object programs

Also Published As

Publication number Publication date
JPS6017135B2 (ja) 1985-05-01
US4241396A (en) 1980-12-23
EP0010186A1 (de) 1980-04-30
JPS5558900A (en) 1980-05-01
IT7926080A0 (it) 1979-09-28
EP0010186B1 (de) 1982-01-20
DE2961891D1 (en) 1982-03-04

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