AU3480897A - An apparatus and method for detecting and decompressing instructions from a variable-length compressed instruction set - Google Patents

An apparatus and method for detecting and decompressing instructions from a variable-length compressed instruction set

Info

Publication number
AU3480897A
AU3480897A AU34808/97A AU3480897A AU3480897A AU 3480897 A AU3480897 A AU 3480897A AU 34808/97 A AU34808/97 A AU 34808/97A AU 3480897 A AU3480897 A AU 3480897A AU 3480897 A AU3480897 A AU 3480897A
Authority
AU
Australia
Prior art keywords
variable
detecting
instruction set
compressed instruction
length compressed
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.)
Abandoned
Application number
AU34808/97A
Inventor
Hartvig Ekner
Frank Worrell
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.)
LSI Corp
Original Assignee
LSI Logic 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
Priority claimed from US08/659,709 external-priority patent/US5794010A/en
Priority claimed from US08/661,003 external-priority patent/US5896519A/en
Priority claimed from US08/659,708 external-priority patent/US5905893A/en
Application filed by LSI Logic Corp filed Critical LSI Logic Corp
Publication of AU3480897A publication Critical patent/AU3480897A/en
Abandoned legal-status Critical Current

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
    • G06F9/3017—Runtime instruction translation, e.g. macros
    • G06F9/30178—Runtime instruction translation, e.g. macros of compressed or encrypted instructions
    • 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
    • G06F9/30145—Instruction analysis, e.g. decoding, instruction word fields
    • G06F9/30149—Instruction analysis, e.g. decoding, instruction word fields of variable length instructions
    • 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
    • G06F9/30145—Instruction analysis, e.g. decoding, instruction word fields
    • G06F9/3016—Decoding the operand specifier, e.g. specifier format
    • G06F9/30167—Decoding the operand specifier, e.g. specifier format of immediate specifier, e.g. constants
    • 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
    • G06F9/30189—Instruction operation extension or modification according to execution mode, e.g. mode flag

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Executing Machine-Instructions (AREA)
AU34808/97A 1996-06-10 1997-06-10 An apparatus and method for detecting and decompressing instructions from a variable-length compressed instruction set Abandoned AU3480897A (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US66102796A 1996-06-10 1996-06-10
US08/659,709 US5794010A (en) 1996-06-10 1996-06-10 Method and apparatus for allowing execution of both compressed instructions and decompressed instructions in a microprocessor
US08/661,003 US5896519A (en) 1996-06-10 1996-06-10 Apparatus for detecting instructions from a variable-length compressed instruction set having extended and non-extended instructions
US08659708 1996-06-10
US08659709 1996-06-10
US08661027 1996-06-10
US08661003 1996-06-10
US08/659,708 US5905893A (en) 1996-06-10 1996-06-10 Microprocessor adapted for executing both a non-compressed fixed length instruction set and a compressed variable length instruction set
PCT/US1997/009984 WO1997048041A1 (en) 1996-06-10 1997-06-10 An apparatus and method for detecting and decompressing instructions from a variable-length compressed instruction set

Publications (1)

Publication Number Publication Date
AU3480897A true AU3480897A (en) 1998-01-07

Family

ID=27505302

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34808/97A Abandoned AU3480897A (en) 1996-06-10 1997-06-10 An apparatus and method for detecting and decompressing instructions from a variable-length compressed instruction set

Country Status (4)

Country Link
JP (1) JP2000512409A (en)
AU (1) AU3480897A (en)
GB (1) GB2329495B (en)
WO (1) WO1997048041A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189090B1 (en) * 1997-09-17 2001-02-13 Sony Corporation Digital signal processor with variable width instructions
SE9704476L (en) 1997-12-02 1999-06-23 Ericsson Telefon Ab L M Extended instruction decoding
EP0942357A3 (en) 1998-03-11 2000-03-22 Matsushita Electric Industrial Co., Ltd. Data processor compatible with a plurality of instruction formats
WO2000008554A1 (en) * 1998-08-07 2000-02-17 Koninklijke Philips Electronics N.V. Apparatus with program memory and processor
US7676653B2 (en) 2007-05-09 2010-03-09 Xmos Limited Compact instruction set encoding
US9710277B2 (en) * 2010-09-24 2017-07-18 Intel Corporation Processor power management based on class and content of instructions
US9372696B2 (en) 2013-10-18 2016-06-21 Via Technologies, Inc. Microprocessor with compressed and uncompressed microcode memories
US9361097B2 (en) * 2013-10-18 2016-06-07 Via Technologies, Inc. Selectively compressed microcode
GB2586258A (en) 2019-08-15 2021-02-17 1Inspiries Tech Ltd Efficient processor machine instruction handling
US11204768B2 (en) 2019-11-06 2021-12-21 Onnivation Llc Instruction length based parallel instruction demarcator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437149A (en) * 1980-11-17 1984-03-13 International Business Machines Corporation Cache memory architecture with decoding
JPH07121352A (en) * 1993-10-21 1995-05-12 Canon Inc Arithmetic processor
GB2284492B (en) * 1993-12-06 1998-05-13 Graeme Roy Smith Improvements to computer control units
GB2289353B (en) * 1994-05-03 1997-08-27 Advanced Risc Mach Ltd Data processing with multiple instruction sets

Also Published As

Publication number Publication date
GB2329495A (en) 1999-03-24
GB2329495B (en) 2000-09-20
WO1997048041A1 (en) 1997-12-18
JP2000512409A (en) 2000-09-19
GB9825726D0 (en) 1999-01-20

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