WO2006132807A3 - Microprocessor instruction that allows system routine calls and returns from all contexts - Google Patents

Microprocessor instruction that allows system routine calls and returns from all contexts Download PDF

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Publication number
WO2006132807A3
WO2006132807A3 PCT/US2006/020090 US2006020090W WO2006132807A3 WO 2006132807 A3 WO2006132807 A3 WO 2006132807A3 US 2006020090 W US2006020090 W US 2006020090W WO 2006132807 A3 WO2006132807 A3 WO 2006132807A3
Authority
WO
WIPO (PCT)
Prior art keywords
contexts
returns
allows system
system routine
routine calls
Prior art date
Application number
PCT/US2006/020090
Other languages
French (fr)
Other versions
WO2006132807A2 (en
Inventor
Erik K Renno
Oyvind Strom
Andreas Engh-Halstvedt
Havard Skinnemoen
Original Assignee
Atmel Corp
Erik K Renno
Oyvind Strom
Andreas Engh-Halstvedt
Havard Skinnemoen
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 Atmel Corp, Erik K Renno, Oyvind Strom, Andreas Engh-Halstvedt, Havard Skinnemoen filed Critical Atmel Corp
Publication of WO2006132807A2 publication Critical patent/WO2006132807A2/en
Publication of WO2006132807A3 publication Critical patent/WO2006132807A3/en

Links

Classifications

    • 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
    • G06F9/30181—Instruction operation extension or modification
    • 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
    • G06F9/30098—Register arrangements
    • G06F9/30101—Special purpose registers
    • 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
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4482—Procedural
    • G06F9/4484—Executing subprograms
    • G06F9/4486—Formation of subprogram jump address

Abstract

An apparatus comprises register means for storing a return context upon initiation of a supervisor call instruction (202) and restoring means to restore a privilege level (210) and status register (208, 218) upon execution of a supervisor return instruction (212). The supervisor call instruction (212) can be called from all contexts.
PCT/US2006/020090 2005-06-06 2006-05-24 Microprocessor instruction that allows system routine calls and returns from all contexts WO2006132807A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/145,613 US7996659B2 (en) 2005-06-06 2005-06-06 Microprocessor instruction that allows system routine calls and returns from all contexts
US11/145,613 2005-06-06

Publications (2)

Publication Number Publication Date
WO2006132807A2 WO2006132807A2 (en) 2006-12-14
WO2006132807A3 true WO2006132807A3 (en) 2007-09-27

Family

ID=37498905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/020090 WO2006132807A2 (en) 2005-06-06 2006-05-24 Microprocessor instruction that allows system routine calls and returns from all contexts

Country Status (3)

Country Link
US (1) US7996659B2 (en)
TW (1) TW200709054A (en)
WO (1) WO2006132807A2 (en)

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US7996659B2 (en) 2005-06-06 2011-08-09 Atmel Corporation Microprocessor instruction that allows system routine calls and returns from all contexts
US7934073B2 (en) * 2007-03-14 2011-04-26 Andes Technology Corporation Method for performing jump and translation state change at the same time
US9652241B2 (en) 2007-04-10 2017-05-16 Cambridge Consultants Ltd. Data processing apparatus with instruction encodings to enable near and far memory access modes
US8341383B2 (en) * 2007-11-02 2012-12-25 Qualcomm Incorporated Method and a system for accelerating procedure return sequences
WO2010004242A2 (en) * 2008-07-10 2010-01-14 Cambridge Consultants Limited Data processing apparatus, for example using vector pointers
US10802990B2 (en) * 2008-10-06 2020-10-13 International Business Machines Corporation Hardware based mandatory access control
US8327059B2 (en) * 2009-09-30 2012-12-04 Vmware, Inc. System and method to enhance memory protection for programs in a virtual machine environment
US9696975B2 (en) * 2010-09-03 2017-07-04 International Business Machines Corporation Allocating register halves independently
US9582287B2 (en) 2012-09-27 2017-02-28 Intel Corporation Processor having multiple cores, shared core extension logic, and shared core extension utilization instructions
GB2551548B (en) 2016-06-22 2019-05-08 Advanced Risc Mach Ltd Register restoring branch instruction
US11175926B2 (en) * 2020-04-08 2021-11-16 Microsoft Technology Licensing, Llc Providing exception stack management using stack panic fault exceptions in processor-based devices
US20230315547A1 (en) * 2022-03-31 2023-10-05 Mellanox Technologies, Ltd. Processor Supporting Vectored System Calls

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5948097A (en) * 1996-08-29 1999-09-07 Intel Corporation Method and apparatus for changing privilege levels in a computer system without use of a call gate
US20040034875A1 (en) * 2002-04-03 2004-02-19 Brian Bulkowski Method and apparatus for transmitting data in a data stream
US20040230779A1 (en) * 2003-05-15 2004-11-18 Haghighat Mohammad R. Methods and apparatus to perform return-address prediction
US20050066332A1 (en) * 2003-09-24 2005-03-24 Durai Vishwas P. Arrangements and methods for invoking an upcall in a computer system
US20050091652A1 (en) * 2003-10-28 2005-04-28 Ross Jonathan K. Processor-architecture for facilitating a virtual machine monitor
US20060026406A1 (en) * 2004-07-31 2006-02-02 Gardner Robert D Unprivileged context management

Also Published As

Publication number Publication date
WO2006132807A2 (en) 2006-12-14
TW200709054A (en) 2007-03-01
US7996659B2 (en) 2011-08-09
US20070006200A1 (en) 2007-01-04

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