DE3751474D1 - Verzweigungsstrom-Koprozessor. - Google Patents

Verzweigungsstrom-Koprozessor.

Info

Publication number
DE3751474D1
DE3751474D1 DE3751474T DE3751474T DE3751474D1 DE 3751474 D1 DE3751474 D1 DE 3751474D1 DE 3751474 T DE3751474 T DE 3751474T DE 3751474 T DE3751474 T DE 3751474T DE 3751474 D1 DE3751474 D1 DE 3751474D1
Authority
DE
Germany
Prior art keywords
branch current
current coprocessor
coprocessor
branch
current
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.)
Expired - Fee Related
Application number
DE3751474T
Other languages
English (en)
Other versions
DE3751474T2 (de
Inventor
Philip George Emma
James Herbert Pomerene
Thomas Roberts Puzak
Rudolph Nathan Rechtschaffen
Frank John Sparacio
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3751474D1 publication Critical patent/DE3751474D1/de
Publication of DE3751474T2 publication Critical patent/DE3751474T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3877—Concurrent instruction execution, e.g. pipeline or look ahead using a slave processor, e.g. coprocessor
    • 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
    • G06F9/3802—Instruction prefetching
    • G06F9/3804—Instruction prefetching for branches, e.g. hedging, branch folding
    • 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
    • G06F9/3844—Speculative instruction execution using dynamic branch prediction, e.g. using branch history tables

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)
DE3751474T 1986-03-13 1987-02-05 Verzweigungsstrom-Koprozessor. Expired - Fee Related DE3751474T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/839,312 US4991080A (en) 1986-03-13 1986-03-13 Pipeline processing apparatus for executing instructions in three streams, including branch stream pre-execution processor for pre-executing conditional branch instructions

Publications (2)

Publication Number Publication Date
DE3751474D1 true DE3751474D1 (de) 1995-09-28
DE3751474T2 DE3751474T2 (de) 1996-03-28

Family

ID=25279394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3751474T Expired - Fee Related DE3751474T2 (de) 1986-03-13 1987-02-05 Verzweigungsstrom-Koprozessor.

Country Status (5)

Country Link
US (1) US4991080A (de)
EP (1) EP0236745B1 (de)
JP (1) JPS62221036A (de)
CA (1) CA1268555A (de)
DE (1) DE3751474T2 (de)

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Also Published As

Publication number Publication date
EP0236745A2 (de) 1987-09-16
EP0236745A3 (de) 1991-12-04
DE3751474T2 (de) 1996-03-28
JPS62221036A (ja) 1987-09-29
CA1268555A (en) 1990-05-01
EP0236745B1 (de) 1995-08-23
US4991080A (en) 1991-02-05

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