CA1139001A - Control memory - Google Patents

Control memory

Info

Publication number
CA1139001A
CA1139001A CA000343714A CA343714A CA1139001A CA 1139001 A CA1139001 A CA 1139001A CA 000343714 A CA000343714 A CA 000343714A CA 343714 A CA343714 A CA 343714A CA 1139001 A CA1139001 A CA 1139001A
Authority
CA
Canada
Prior art keywords
control
pla
set forth
memory
accessing
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
Application number
CA000343714A
Other languages
English (en)
French (fr)
Inventor
William H. Roberts
Spencer S. Hu
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.)
Digital Equipment Corp
Original Assignee
Digital Equipment 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 Digital Equipment Corp filed Critical Digital Equipment Corp
Application granted granted Critical
Publication of CA1139001A publication Critical patent/CA1139001A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/223—Execution means for microinstructions irrespective of the microinstruction function, e.g. decoding of microinstructions and nanoinstructions; timing of microinstructions; programmable logic arrays; delays and fan-out problems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/262—Arrangements for next microinstruction selection
    • G06F9/264—Microinstruction selection based on results of processing
    • G06F9/267—Microinstruction selection based on results of processing by instruction selection on output of storage

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)
  • Logic Circuits (AREA)
CA000343714A 1979-01-16 1980-01-15 Control memory Expired CA1139001A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US384179A 1979-01-16 1979-01-16
US003,841 1979-01-16

Publications (1)

Publication Number Publication Date
CA1139001A true CA1139001A (en) 1983-01-04

Family

ID=21707845

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000343714A Expired CA1139001A (en) 1979-01-16 1980-01-15 Control memory

Country Status (10)

Country Link
JP (1) JPS55116147A (cs)
AU (1) AU540233B2 (cs)
BR (1) BR8000169A (cs)
CA (1) CA1139001A (cs)
DE (1) DE2951040A1 (cs)
FI (1) FI74355C (cs)
FR (1) FR2447062B1 (cs)
GB (1) GB2046963B (cs)
IT (1) IT1128852B (cs)
SE (1) SE449800B (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685080A (en) * 1982-02-22 1987-08-04 International Business Machines Corp. Microword generation mechanism utilizing separate programmable logic arrays for first and second microwords
US4931989A (en) * 1982-02-22 1990-06-05 International Business Machines Corporation Microword generation mechanism utilizing a separate programmable logic array for first microwords

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077010B (en) * 1980-06-02 1984-10-31 Hitachi Ltd Microprogramme control method and apparatus therefor
JPS5748139A (en) * 1980-09-04 1982-03-19 Nec Corp Microprogram control device
DE3138971A1 (de) * 1981-09-30 1983-04-21 Siemens AG, 1000 Berlin und 8000 München Mikroprogrammiertr prozessor und verfahren zu seinembetrieb
US4575794A (en) * 1982-02-22 1986-03-11 International Business Machines Corp. Clocking mechanism for multiple overlapped dynamic programmable logic arrays used in a digital control unit
US4594661A (en) * 1982-02-22 1986-06-10 International Business Machines Corp. Microword control system utilizing multiplexed programmable logic arrays
DE3214068A1 (de) * 1982-04-16 1983-10-20 VMEI Lenin, Sofia Multiprozessor-rechenmaschine
JPS5962953A (ja) * 1982-10-04 1984-04-10 Hitachi Ltd マイクロプログラム制御装置
US4661901A (en) * 1982-12-23 1987-04-28 International Business Machines Corporation Microprocessor control system utilizing overlapped programmable logic arrays
US4812970A (en) * 1983-11-10 1989-03-14 Fujitsu Limited Microprogram control system
GB2161001B (en) * 1984-06-25 1988-09-01 Rational Distributed microcode address apparatus for computer
JPS61170828A (ja) * 1985-01-24 1986-08-01 Hitachi Ltd マイクロプログラム制御装置
FR2587516B1 (fr) * 1985-09-13 1987-11-20 Eurotechnique Sa Sequenceur d'instructions pour microprocesseur a architecture en reseau

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839705A (en) * 1972-12-14 1974-10-01 Gen Electric Data processor including microprogram control means
US3800293A (en) * 1972-12-26 1974-03-26 Ibm Microprogram control subsystem
US3953833A (en) * 1974-08-21 1976-04-27 Technology Marketing Incorporated Microprogrammable computer having a dual function secondary storage element
DE2621399A1 (de) * 1975-05-29 1976-12-09 Int Standard Electric Corp Speichereinrichtung
JPS53107250A (en) * 1977-03-01 1978-09-19 Sanyo Electric Co Ltd Microprogram control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685080A (en) * 1982-02-22 1987-08-04 International Business Machines Corp. Microword generation mechanism utilizing separate programmable logic arrays for first and second microwords
US4931989A (en) * 1982-02-22 1990-06-05 International Business Machines Corporation Microword generation mechanism utilizing a separate programmable logic array for first microwords

Also Published As

Publication number Publication date
JPS55116147A (en) 1980-09-06
BR8000169A (pt) 1980-10-21
DE2951040A1 (de) 1980-07-24
IT8067052A0 (it) 1980-01-15
SE8000323L (sv) 1980-07-17
AU540233B2 (en) 1984-11-08
DE2951040C2 (cs) 1990-10-25
FI800118A7 (fi) 1980-07-17
GB2046963A (en) 1980-11-19
FI74355C (fi) 1988-01-11
FI74355B (fi) 1987-09-30
GB2046963B (en) 1983-09-01
AU5449880A (en) 1980-07-24
FR2447062A1 (fr) 1980-08-14
IT1128852B (it) 1986-06-04
FR2447062B1 (fr) 1987-03-20
SE449800B (sv) 1987-05-18
JPH0117178B2 (cs) 1989-03-29

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Legal Events

Date Code Title Description
MKEX Expiry