ES405488A1 - Microprogramme control system - Google Patents

Microprogramme control system

Info

Publication number
ES405488A1
ES405488A1 ES405488A ES405488A ES405488A1 ES 405488 A1 ES405488 A1 ES 405488A1 ES 405488 A ES405488 A ES 405488A ES 405488 A ES405488 A ES 405488A ES 405488 A1 ES405488 A1 ES 405488A1
Authority
ES
Spain
Prior art keywords
data
control
memory
read
memories
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
ES405488A
Other languages
Spanish (es)
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 ES405488A1 publication Critical patent/ES405488A1/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
    • G06F9/26—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

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)

Abstract

A microprogram control system for use in controlling the flow of data in a data processing system, comprising a plurality of associative, cyclically operating state memories, which are arranged during each operating cycle to read data that, at least in part, are interpreted by the data stream as electrical control signals, and a sequence memory, which operates synchronously with status memories, and hold sequence control words, comprising as many fields control as state memories are, in which data read from each state memory is selected by an associative search operation that has a search argument that comprises at least part of the data read from the state memory during the preceding cycle and the content of a particular control field for the status memory, of a control word read from the memory of sequence control. (Machine-translation by Google Translate, not legally binding)
ES405488A 1971-08-04 1972-08-03 Microprogramme control system Expired ES405488A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3661671 1971-08-04

Publications (1)

Publication Number Publication Date
ES405488A1 true ES405488A1 (en) 1975-09-01

Family

ID=10389737

Family Applications (1)

Application Number Title Priority Date Filing Date
ES405488A Expired ES405488A1 (en) 1971-08-04 1972-08-03 Microprogramme control system

Country Status (11)

Country Link
JP (1) JPS5325225B2 (en)
AU (1) AU458031B2 (en)
CA (1) CA960784A (en)
CH (1) CH536000A (en)
DE (1) DE2237427C3 (en)
ES (1) ES405488A1 (en)
FR (1) FR2150035A5 (en)
GB (1) GB1314486A (en)
IT (1) IT963421B (en)
NL (1) NL7210213A (en)
SE (1) SE378688B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5291343A (en) * 1976-01-26 1977-08-01 Nec Corp Information processing apparatus
JPS5362950A (en) * 1976-11-17 1978-06-05 Toshiba Corp Microprogram control system
JPS5427818A (en) * 1977-08-03 1979-03-02 Ricoh Kk Serial impact printer
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

Also Published As

Publication number Publication date
CH536000A (en) 1973-05-30
SE378688B (en) 1975-09-08
AU458031B2 (en) 1975-02-13
GB1314486A (en) 1973-04-26
JPS4826044A (en) 1973-04-05
JPS5325225B2 (en) 1978-07-25
DE2237427A1 (en) 1973-02-15
DE2237427B2 (en) 1973-06-07
DE2237427C3 (en) 1974-01-17
NL7210213A (en) 1973-02-06
AU4218672A (en) 1973-11-15
IT963421B (en) 1974-01-10
FR2150035A5 (en) 1973-03-30
CA960784A (en) 1975-01-07

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