DE2536622C2 - Verzweigungssteuerung mit flexibler Auswahl von Steuerworten - Google Patents

Verzweigungssteuerung mit flexibler Auswahl von Steuerworten

Info

Publication number
DE2536622C2
DE2536622C2 DE2536622A DE2536622A DE2536622C2 DE 2536622 C2 DE2536622 C2 DE 2536622C2 DE 2536622 A DE2536622 A DE 2536622A DE 2536622 A DE2536622 A DE 2536622A DE 2536622 C2 DE2536622 C2 DE 2536622C2
Authority
DE
Germany
Prior art keywords
control
control word
selection
branch
circuit
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
DE2536622A
Other languages
German (de)
English (en)
Other versions
DE2536622A1 (de
Inventor
Charles Wesley Poughkeepsie N.Y. Evans
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
Publication of DE2536622A1 publication Critical patent/DE2536622A1/de
Application granted granted Critical
Publication of DE2536622C2 publication Critical patent/DE2536622C2/de
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
    • G06F9/264—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)
DE2536622A 1974-09-24 1975-08-16 Verzweigungssteuerung mit flexibler Auswahl von Steuerworten Expired DE2536622C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/508,797 US3958227A (en) 1974-09-24 1974-09-24 Control store system with flexible control word selection

Publications (2)

Publication Number Publication Date
DE2536622A1 DE2536622A1 (de) 1976-04-08
DE2536622C2 true DE2536622C2 (de) 1983-11-03

Family

ID=24024114

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2536622A Expired DE2536622C2 (de) 1974-09-24 1975-08-16 Verzweigungssteuerung mit flexibler Auswahl von Steuerworten

Country Status (5)

Country Link
US (1) US3958227A (enExample)
JP (1) JPS581466B2 (enExample)
DE (1) DE2536622C2 (enExample)
FR (1) FR2286438A1 (enExample)
GB (1) GB1512222A (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042913A (en) * 1976-04-30 1977-08-16 International Business Machines Corporation Address key register load/store instruction system
US4124893A (en) * 1976-10-18 1978-11-07 Honeywell Information Systems Inc. Microword address branching bit arrangement
US4118773A (en) * 1977-04-01 1978-10-03 Honeywell Information Systems Inc. Microprogram memory bank addressing system
DE2747304C3 (de) * 1977-10-21 1981-03-26 IBM Deutschland GmbH, 70569 Stuttgart Einrichtung zur Mikrobefehlssteuerung
US4181942A (en) * 1978-03-31 1980-01-01 International Business Machines Corporation Program branching method and apparatus
JPS5748139A (en) * 1980-09-04 1982-03-19 Nec Corp Microprogram control device
US4434465A (en) 1981-04-13 1984-02-28 Texas Instruments Incorporated Shared microinstruction states in control ROM addressing for a microcoded single chip microcomputer
US4531199A (en) * 1981-06-01 1985-07-23 International Business Machines Corporation Binary number substitution mechanism in a control store element
JPS57199050A (en) * 1981-06-01 1982-12-06 Ibm Micro order control memory mechanism
US4422144A (en) * 1981-06-01 1983-12-20 International Business Machines Corp. Microinstruction substitution mechanism in a control store
JPS5896349A (ja) * 1981-12-02 1983-06-08 Hitachi Ltd マイクロ命令制御のデータ処理装置
JPS58114244A (ja) * 1981-12-28 1983-07-07 Nec Corp マイクロプログラム制御装置
NL8205076A (nl) * 1982-12-31 1984-07-16 Philips Nv Data processor eenheid voorzien van een stuurgedeelte welk een adresgenerator bevat voor het genereren van adressen welke uit karakteristieke adresdelen zijn samengesteld.
DE3810166A1 (de) * 1988-03-25 1989-10-05 Henkel Kgaa Verwendung eines waessrigen konzentrates, enthaltend ein ethylen-acrylsaeure-copolymerisat, sowie verfahren zur koagulation von lacken und anderen organischen beschichtungsmitteln
JPH04328634A (ja) * 1991-04-26 1992-11-17 Nec Corp マイクロプログラム制御装置
US5386549A (en) * 1992-11-19 1995-01-31 Amdahl Corporation Error recovery system for recovering errors that occur in control store in a computer system employing pipeline architecture
US5568622A (en) * 1993-04-15 1996-10-22 Bull Hn Information Systems Inc. Method and apparatus for minimizing the number of control words in a brom control store of a microprogrammed central processor
US5812808A (en) * 1996-06-11 1998-09-22 Driker; Benjamin Totally pipelined computer, interconnected with others
US7127593B2 (en) * 2001-06-11 2006-10-24 Broadcom Corporation Conditional execution with multiple destination stores
US6986025B2 (en) * 2001-06-11 2006-01-10 Broadcom Corporation Conditional execution per lane
US7861071B2 (en) * 2001-06-11 2010-12-28 Broadcom Corporation Conditional branch instruction capable of testing a plurality of indicators in a predicate register

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325785A (en) * 1964-12-18 1967-06-13 Ibm Efficient utilization of control storage and access controls therefor
US3391394A (en) * 1965-10-22 1968-07-02 Ibm Microprogram control for a data processing system
US3445818A (en) * 1966-08-01 1969-05-20 Rca Corp Memory accessing system
US3573854A (en) * 1968-12-04 1971-04-06 Texas Instruments Inc Look-ahead control for operation of program loops
US3656123A (en) * 1970-04-16 1972-04-11 Ibm Microprogrammed processor with variable basic machine cycle lengths
US3728686A (en) * 1971-06-07 1973-04-17 Rca Corp Computer memory with improved next word accessing
US3704448A (en) * 1971-08-02 1972-11-28 Hewlett Packard Co Data processing control system
US3800293A (en) * 1972-12-26 1974-03-26 Ibm Microprogram control subsystem

Also Published As

Publication number Publication date
US3958227A (en) 1976-05-18
JPS5148240A (enExample) 1976-04-24
FR2286438B1 (enExample) 1977-12-16
JPS581466B2 (ja) 1983-01-11
FR2286438A1 (fr) 1976-04-23
DE2536622A1 (de) 1976-04-08
GB1512222A (en) 1978-05-24

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Legal Events

Date Code Title Description
OD Request for examination
8125 Change of the main classification

Ipc: G06F 9/26

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee