CA1029470A - Programmable logic array control section for data processing system - Google Patents

Programmable logic array control section for data processing system

Info

Publication number
CA1029470A
CA1029470A CA220,632A CA220632A CA1029470A CA 1029470 A CA1029470 A CA 1029470A CA 220632 A CA220632 A CA 220632A CA 1029470 A CA1029470 A CA 1029470A
Authority
CA
Canada
Prior art keywords
data processing
processing system
control section
programmable logic
logic array
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
CA220,632A
Other languages
English (en)
French (fr)
Inventor
William H. Beall
George F. Reyling (Jr.)
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.)
National Semiconductor Corp
Original Assignee
National Semiconductor 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 National Semiconductor Corp filed Critical National Semiconductor Corp
Application granted granted Critical
Publication of CA1029470A publication Critical patent/CA1029470A/en
Expired 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
    • G06F9/22—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; 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
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/261—Microinstruction address formation

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)
CA220,632A 1974-06-06 1975-02-24 Programmable logic array control section for data processing system Expired CA1029470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/477,053 US3949370A (en) 1974-06-06 1974-06-06 Programmable logic array control section for data processing system

Publications (1)

Publication Number Publication Date
CA1029470A true CA1029470A (en) 1978-04-11

Family

ID=23894319

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220,632A Expired CA1029470A (en) 1974-06-06 1975-02-24 Programmable logic array control section for data processing system

Country Status (6)

Country Link
US (1) US3949370A (de)
JP (1) JPS51852A (de)
CA (1) CA1029470A (de)
DE (1) DE2505384A1 (de)
FR (1) FR2274087A1 (de)
GB (1) GB1507485A (de)

Families Citing this family (40)

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US4194241A (en) * 1977-07-08 1980-03-18 Xerox Corporation Bit manipulation circuitry in a microprocessor
US4195352A (en) * 1977-07-08 1980-03-25 Xerox Corporation Split programmable logic array
US4276595A (en) * 1978-06-30 1981-06-30 International Business Machines Corporation Microinstruction storage units employing partial address generators
US4396981A (en) * 1978-10-02 1983-08-02 Honeywell Information Systems Inc. Control store apparatus having dual mode operation handling mechanism
US4342080A (en) * 1978-11-08 1982-07-27 Data General Corporation Computer with microcode generator system
US4433389A (en) * 1978-12-26 1984-02-21 Burroughs Corporation Memory address translation system for accessing memory locations via job names
US4268908A (en) * 1979-02-26 1981-05-19 International Business Machines Corporation Modular macroprocessing system comprising a microprocessor and an extendable number of programmed logic arrays
JPS5616243A (en) * 1979-07-18 1981-02-17 Matsushita Electric Ind Co Ltd Microaddress production system
US4354228A (en) * 1979-12-20 1982-10-12 International Business Machines Corporation Flexible processor on a single semiconductor substrate using a plurality of arrays
GB2077010B (en) * 1980-06-02 1984-10-31 Hitachi Ltd Microprogramme control method and apparatus therefor
US4403284A (en) * 1980-11-24 1983-09-06 Texas Instruments Incorporated Microprocessor which detects leading 1 bit of instruction to obtain microcode entry point address
JPS5843654U (ja) * 1981-09-17 1983-03-24 三洋電機株式会社 基準信号発生回路
US4509114A (en) * 1982-02-22 1985-04-02 International Business Machines Corporation Microword control mechanism utilizing a programmable logic array and a sequence counter
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
US4931989A (en) * 1982-02-22 1990-06-05 International Business Machines Corporation Microword generation mechanism utilizing a separate programmable logic array for first microwords
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
US4484268A (en) * 1982-02-22 1984-11-20 Thoma Nandor G Apparatus and method for decoding an operation code using a plurality of multiplexed programmable logic arrays
US4947369A (en) * 1982-12-23 1990-08-07 International Business Machines Corporation Microword generation mechanism utilizing a separate branch decision programmable logic array
EP0114194B1 (de) * 1982-12-23 1987-10-14 International Business Machines Corporation Mikroworterzeugungsmechanismus mit getrennter programmierbarer Logik-Matrix zur Abzweigungsentscheidung
US4661901A (en) * 1982-12-23 1987-04-28 International Business Machines Corporation Microprocessor control system utilizing overlapped programmable logic arrays
US4825363A (en) * 1984-12-05 1989-04-25 Honeywell Inc. Apparatus for modifying microinstructions of a microprogrammed processor
US4984151A (en) * 1985-03-01 1991-01-08 Advanced Micro Devices, Inc. Flexible, next-address generation microprogram sequencer
US4761768A (en) * 1985-03-04 1988-08-02 Lattice Semiconductor Corporation Programmable logic device
US4864535A (en) * 1985-12-06 1989-09-05 Texas Instruments Incorporated Entry point address circuit for microcode rom
JPS62164133A (ja) * 1986-01-16 1987-07-20 Toshiba Corp マイクロプログラム制御装置
JPS62237522A (ja) * 1986-04-08 1987-10-17 Nec Corp 情報処理装置
US4750467A (en) 1986-09-11 1988-06-14 General Motors Corporation Internal combustion engine ignition system
EP0358773B1 (de) * 1988-01-27 1996-06-05 Oki Electric Industry Company, Limited Mikrorechner
US4896060A (en) * 1988-10-31 1990-01-23 Sgs-Thomson Microelectronics, Inc. Dialer with internal option select circuit programmed with externally hardwired address
USRE36443E (en) * 1988-10-31 1999-12-14 Sgs-Thomson Microelectronics, Inc. Dialer with internal option select circuit programmed with externally hardwired address
US5043879A (en) * 1989-01-12 1991-08-27 International Business Machines Corporation PLA microcode controller
US5081375A (en) * 1989-01-19 1992-01-14 National Semiconductor Corp. Method for operating a multiple page programmable logic device
JP3063006B2 (ja) * 1989-02-08 2000-07-12 インテル・コーポレーション マイクロプログラムされるコンピュータ装置及びマイクロコードシーケンスメモリをアドレツシングする方法
US5055712A (en) * 1990-04-05 1991-10-08 National Semiconductor Corp. Register file with programmable control, decode and/or data manipulation
US5189628A (en) * 1991-03-11 1993-02-23 National Semiconductor Corporation System and method for partitioning PLA product terms into distinct logical groups
US5408674A (en) * 1992-12-23 1995-04-18 Amdahl Corporation System for checking the validity of two byte operation code by mapping two byte operation codes into control memory in order to reduce memory size
JPH10506209A (ja) * 1994-09-22 1998-06-16 ハネウエル・インコーポレーテッド 同期システムのタイミングと制御のためのプログラマブル制御記憶装置
US5691653A (en) * 1996-01-16 1997-11-25 Altera Corporation Product term based programmable logic array devices with reduced control memory requirements
SE520511C2 (sv) * 1997-12-02 2003-07-22 Ericsson Telefon Ab L M Processor och förfarande för instruktionsavkodning

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389376A (en) * 1965-07-06 1968-06-18 Burroughs Corp Micro-program operated multiple addressed memory
US3579192A (en) * 1967-11-02 1971-05-18 Burroughs Corp Data processing machine
US3646522A (en) * 1969-08-15 1972-02-29 Interdata Inc General purpose optimized microprogrammed miniprocessor
US3745533A (en) * 1970-05-27 1973-07-10 Hughes Aircraft Co Digital data storage register modules
US3736567A (en) * 1971-09-08 1973-05-29 Bunker Ramo Program sequence control
US3849765A (en) * 1971-11-30 1974-11-19 Matsushita Electric Ind Co Ltd Programmable logic controller
JPS4873039A (de) * 1971-12-20 1973-10-02
US3748649A (en) * 1972-02-29 1973-07-24 Bell Telephone Labor Inc Translator memory decoding arrangement for a microprogram controlled processor
IT951233B (it) * 1972-04-07 1973-06-30 Honeywell Inf Systems Sistema di comando di un calcola tore mediante microprogrammazione ed estensione dinamica delle fun zioni di controllo ottenuta da reti logiche
US3766532A (en) * 1972-04-28 1973-10-16 Nanodata Corp Data processing system having two levels of program control
US3827030A (en) * 1973-01-29 1974-07-30 Gulf & Western Industries Programmable controller using a random access memory

Also Published As

Publication number Publication date
US3949370A (en) 1976-04-06
GB1507485A (en) 1978-04-12
FR2274087B1 (de) 1979-01-19
JPS51852A (de) 1976-01-07
FR2274087A1 (fr) 1976-01-02
DE2505384A1 (de) 1975-12-18

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