JPS56152047A - Microprogram controller - Google Patents

Microprogram controller

Info

Publication number
JPS56152047A
JPS56152047A JP5457380A JP5457380A JPS56152047A JP S56152047 A JPS56152047 A JP S56152047A JP 5457380 A JP5457380 A JP 5457380A JP 5457380 A JP5457380 A JP 5457380A JP S56152047 A JPS56152047 A JP S56152047A
Authority
JP
Japan
Prior art keywords
register
address
circuit
contents
held
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.)
Pending
Application number
JP5457380A
Other languages
Japanese (ja)
Inventor
Kenji Shirai
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5457380A priority Critical patent/JPS56152047A/en
Publication of JPS56152047A publication Critical patent/JPS56152047A/en
Pending 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)

Abstract

PURPOSE:To shorten the processing time of instructions by providing a circuit which modifies an address, decoded by an instruction decoder, according to the output of a decision conditioning circuit, by holding the output of the circuit in an instruction address register and by reading the contents of a control storage according to the contents of the register. CONSTITUTION:Data obtained by decoding the contents of instruction register 1 by instruction decoder 2 is inputted to logic circuit 7, whose output is held in microinstruction address register 3. At this time, when a signal inputted from decision conditioning circuit 6 to circuit 7 satisfies the condition with ''1'', address (b) is held as an input address in register 3 and if the condition is not established, address C is held with input signal ''0''. According to the contents of register 3, control memory 4 is controlled to shorten the processing time of instructions.
JP5457380A 1980-04-24 1980-04-24 Microprogram controller Pending JPS56152047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5457380A JPS56152047A (en) 1980-04-24 1980-04-24 Microprogram controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5457380A JPS56152047A (en) 1980-04-24 1980-04-24 Microprogram controller

Publications (1)

Publication Number Publication Date
JPS56152047A true JPS56152047A (en) 1981-11-25

Family

ID=12974428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5457380A Pending JPS56152047A (en) 1980-04-24 1980-04-24 Microprogram controller

Country Status (1)

Country Link
JP (1) JPS56152047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6089249A (en) * 1982-12-23 1985-05-20 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Microword generation mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6089249A (en) * 1982-12-23 1985-05-20 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Microword generation mechanism
JPS6323585B2 (en) * 1982-12-23 1988-05-17 Intaanashonaru Bijinesu Mashiinzu Corp

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