CA1272296C - - Google Patents

Info

Publication number
CA1272296C
CA1272296C CA 511954 CA511954A CA1272296C CA 1272296 C CA1272296 C CA 1272296C CA 511954 CA511954 CA 511954 CA 511954 A CA511954 A CA 511954A CA 1272296 C CA1272296 C CA 1272296C
Authority
CA
Canada
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.)
Expired - Lifetime
Application number
CA 511954
Other versions
CA1270573A1 (en
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 filed Critical
Priority to CA000593003A priority Critical patent/CA1272296A/en
Publication of CA1270573A1 publication Critical patent/CA1270573A1/en
Application granted granted Critical
Publication of CA1272296C publication Critical patent/CA1272296C/xx
Granted 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
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3005—Arrangements for executing specific machine instructions to perform operations for flow control
    • G06F9/30069—Instruction skipping instructions, e.g. SKIP
    • 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
    • G06F9/3005—Arrangements for executing specific machine instructions to perform operations for flow control
    • G06F9/30058—Conditional branch 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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • 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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • 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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • G06F9/3846—Speculative instruction execution using static prediction, e.g. branch taken strategy
    • 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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3854—Instruction completion, e.g. retiring, committing or graduating
    • G06F9/3858—Result writeback, i.e. updating the architectural state or memory
    • G06F9/38585—Result writeback, i.e. updating the architectural state or memory with result invalidation, e.g. nullification

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Advance Control (AREA)
  • Devices For Executing Special Programs (AREA)
CA 511954 1985-06-28 1986-06-19 Bidirectional branch prediction and optimization Granted CA1270573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000593003A CA1272296A (en) 1985-06-28 1989-03-07 Bidirectional branch prediction and optimization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/750,625 US4755966A (en) 1985-06-28 1985-06-28 Bidirectional branch prediction and optimization
US750,625 1985-06-28

Publications (2)

Publication Number Publication Date
CA1270573A1 CA1270573A1 (en) 1990-06-19
CA1272296C true CA1272296C (de) 1990-07-31

Family

ID=25018608

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 511954 Granted CA1270573A1 (en) 1985-06-28 1986-06-19 Bidirectional branch prediction and optimization

Country Status (8)

Country Link
US (2) US4755966A (de)
EP (2) EP0423906B1 (de)
JP (1) JP2518616B2 (de)
KR (1) KR940005817B1 (de)
CN (1) CN1010618B (de)
AU (2) AU589977B2 (de)
CA (1) CA1270573A1 (de)
DE (2) DE3680722D1 (de)

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US5815695A (en) * 1993-10-28 1998-09-29 Apple Computer, Inc. Method and apparatus for using condition codes to nullify instructions based on results of previously-executed instructions on a computer processor
TW261676B (de) * 1993-11-02 1995-11-01 Motorola Inc
US5539888A (en) * 1993-12-23 1996-07-23 Unisys Corporation System and method for processing external conditional branch instructions
US5799180A (en) * 1995-10-31 1998-08-25 Texas Instruments Incorporated Microprocessor circuits, systems, and methods passing intermediate instructions between a short forward conditional branch instruction and target instruction through pipeline, then suppressing results if branch taken
US5905881A (en) * 1995-11-30 1999-05-18 Unisys Corporation Delayed state writes for an instruction processor
US5774709A (en) * 1995-12-06 1998-06-30 Lsi Logic Corporation Enhanced branch delay slot handling with single exception program counter
US5796997A (en) * 1996-05-15 1998-08-18 Hewlett-Packard Company Fast nullify system and method for transforming a nullify function into a select function
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US5974538A (en) * 1997-02-21 1999-10-26 Wilmot, Ii; Richard Byron Method and apparatus for annotating operands in a computer system with source instruction identifiers
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US20060168431A1 (en) * 1998-10-14 2006-07-27 Peter Warnes Method and apparatus for jump delay slot control in a pipelined processor
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US7681018B2 (en) 2000-08-31 2010-03-16 Intel Corporation Method and apparatus for providing large register address space while maximizing cycletime performance for a multi-threaded register file set
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Also Published As

Publication number Publication date
AU627828B2 (en) 1992-09-03
DE3650413D1 (de) 1995-11-09
DE3680722D1 (de) 1991-09-12
CN86103708A (zh) 1986-12-24
EP0423906A2 (de) 1991-04-24
EP0207665A1 (de) 1987-01-07
KR870000643A (ko) 1987-02-19
AU4867090A (en) 1990-05-10
KR940005817B1 (ko) 1994-06-23
EP0423906B1 (de) 1995-10-04
DE3650413T2 (de) 1996-03-07
US4755966A (en) 1988-07-05
US5051896A (en) 1991-09-24
JP2518616B2 (ja) 1996-07-24
CA1270573A1 (en) 1990-06-19
EP0207665B1 (de) 1991-08-07
AU589977B2 (en) 1989-10-26
EP0423906A3 (en) 1991-08-28
CN1010618B (zh) 1990-11-28
JPS623340A (ja) 1987-01-09
AU5917186A (en) 1987-01-08

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Legal Events

Date Code Title Description
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121205