CA1158777A - Microprogrammed control unit sequencer - Google Patents

Microprogrammed control unit sequencer

Info

Publication number
CA1158777A
CA1158777A CA000379443A CA379443A CA1158777A CA 1158777 A CA1158777 A CA 1158777A CA 000379443 A CA000379443 A CA 000379443A CA 379443 A CA379443 A CA 379443A CA 1158777 A CA1158777 A CA 1158777A
Authority
CA
Canada
Prior art keywords
address
register
outputs
inputs
loop
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
CA000379443A
Other languages
English (en)
French (fr)
Inventor
Vittorio Zanchi
Tiziano Maccianti
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.)
Bull HN Information Systems Italia SpA
Original Assignee
Honeywell Information Systems Italia SpA
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 Honeywell Information Systems Italia SpA filed Critical Honeywell Information Systems Italia SpA
Application granted granted Critical
Publication of CA1158777A publication Critical patent/CA1158777A/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
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/262—Arrangements for next microinstruction selection
    • G06F9/268—Microinstruction selection not based on processing results, e.g. interrupt, patch, first cycle store, diagnostic programs

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)
CA000379443A 1980-06-12 1981-06-10 Microprogrammed control unit sequencer Expired CA1158777A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22732/80A IT1149809B (it) 1980-06-12 1980-06-12 Sequenziatore per unita' di controllo microprogrammata
IT22732A/80 1980-06-12

Publications (1)

Publication Number Publication Date
CA1158777A true CA1158777A (en) 1983-12-13

Family

ID=11199784

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000379443A Expired CA1158777A (en) 1980-06-12 1981-06-10 Microprogrammed control unit sequencer

Country Status (7)

Country Link
US (1) US4429361A (cg-RX-API-DMAC7.html)
EP (1) EP0042082B1 (cg-RX-API-DMAC7.html)
JP (1) JPS5729151A (cg-RX-API-DMAC7.html)
AU (1) AU535972B2 (cg-RX-API-DMAC7.html)
CA (1) CA1158777A (cg-RX-API-DMAC7.html)
DE (1) DE3163594D1 (cg-RX-API-DMAC7.html)
IT (1) IT1149809B (cg-RX-API-DMAC7.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309068A3 (en) * 1982-11-15 1990-08-16 Data General Corporation Digital data processing system
JPS6054897U (ja) * 1983-09-21 1985-04-17 株式会社東芝 壁掛形扇風機の取付装置
DE3751287T2 (de) * 1986-12-01 1995-11-16 Nippon Electric Co Während einer Instruktionsausführung eine Unterbrechungsanforderung empfangender Mikroprogrammkontrolleur.
US4821183A (en) * 1986-12-04 1989-04-11 International Business Machines Corporation A microsequencer circuit with plural microprogrom instruction counters
US4910664A (en) * 1987-11-27 1990-03-20 Mitsubishi Denki Kabushiki Kaisha Data processor with apparatus for reducing loop processing time
US5117498A (en) * 1988-08-19 1992-05-26 Motorola, Inc. Processer with flexible return from subroutine
EP0374419A3 (en) * 1988-12-21 1991-04-10 International Business Machines Corporation Method and apparatus for efficient loop constructs in hardware and microcode
US5134693A (en) * 1989-01-18 1992-07-28 Intel Corporation System for handling occurrence of exceptions during execution of microinstructions while running floating point and non-floating point instructions in parallel
US5093917A (en) * 1990-01-17 1992-03-03 Ag Communication Systems Corporation Method for passing data parameters between a calling program and a called subroutine in a command analysis table of a computer stored data base system
JPH0440700A (ja) * 1990-06-06 1992-02-12 Mitsubishi Electric Corp カウンタ回路
US5410660A (en) * 1992-12-24 1995-04-25 Motorola, Inc. System and method for executing branch on bit set/clear instructions using microprogramming flow
AU6629894A (en) * 1993-05-07 1994-12-12 Apple Computer, Inc. Method for decoding guest instructions for a host computer
WO1994027214A1 (en) * 1993-05-07 1994-11-24 Apple Computer, Inc. Method for decoding sequences of guest instructions for a host computer
US5644741A (en) * 1993-10-18 1997-07-01 Cyrix Corporation Processor with single clock decode architecture employing single microROM
US5794026A (en) * 1993-10-18 1998-08-11 National Semiconductor Microprocessor having expedited execution of condition dependent instructions
US7401210B2 (en) * 2005-03-30 2008-07-15 Arm Limited Selecting subroutine return mechanisms

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939455A (en) * 1971-10-01 1976-02-17 Hitachi, Ltd. Microprocessor having an interface for connection of external devices
US3909797A (en) * 1973-12-13 1975-09-30 Honeywell Inf Systems Data processing system utilizing control store unit and push down stack for nested subroutines
US3938098A (en) * 1973-12-26 1976-02-10 Xerox Corporation Input/output connection arrangement for microprogrammable computer
IT1002275B (it) * 1973-12-27 1976-05-20 Honeywell Inf Systems Sistema di elaborazione dati a piu canali di ingresso uscita a risorse orientate per livelli di servizio distinti e interrompi bili
US4001788A (en) * 1975-03-26 1977-01-04 Honeywell Information Systems, Inc. Pathfinder microprogram control system
US4075687A (en) * 1976-03-01 1978-02-21 Raytheon Company Microprogram controlled digital computer
US4159520A (en) 1977-01-03 1979-06-26 Motorola, Inc. Memory address control device with extender bus
US4179737A (en) * 1977-12-23 1979-12-18 Burroughs Corporation Means and methods for providing greater speed and flexibility of microinstruction sequencing

Also Published As

Publication number Publication date
EP0042082B1 (en) 1984-05-16
AU535972B2 (en) 1984-04-12
IT1149809B (it) 1986-12-10
IT8022732A0 (it) 1980-06-12
US4429361A (en) 1984-01-31
DE3163594D1 (de) 1984-06-20
JPS6338725B2 (cg-RX-API-DMAC7.html) 1988-08-02
AU7129481A (en) 1981-12-17
EP0042082A1 (en) 1981-12-23
JPS5729151A (en) 1982-02-17

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Legal Events

Date Code Title Description
MKEX Expiry