JPS57197653A - Control device of microprogram - Google Patents

Control device of microprogram

Info

Publication number
JPS57197653A
JPS57197653A JP8200481A JP8200481A JPS57197653A JP S57197653 A JPS57197653 A JP S57197653A JP 8200481 A JP8200481 A JP 8200481A JP 8200481 A JP8200481 A JP 8200481A JP S57197653 A JPS57197653 A JP S57197653A
Authority
JP
Japan
Prior art keywords
memory
control
flag
refered
stores
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
JP8200481A
Other languages
Japanese (ja)
Inventor
Ryoichi Mazaki
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 JP8200481A priority Critical patent/JPS57197653A/en
Publication of JPS57197653A publication Critical patent/JPS57197653A/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

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 promote reduction of the capacity of a memory for control by separating the memory for sequence control from one for operation control, and using a code that designates the operation control in common. CONSTITUTION:A memory for control is provided with a sequence control memory 9 that stores a program, and an operation control memory 13 that stores the function of operation control in a microinstruction, and a bit in the left end of the sequence control memory 9 is a flag which shows whether or not to refer to the operation memory 13 and the memory 13 is refered if the flag is ''0'' and the memory 13 is not refered if the flag is ''1'', and the flag controls a control circuit 11. The control circuit 11 is controlled also by an operation code in a microinstruction data register 14 and the output of a test circuit 17.
JP8200481A 1981-05-29 1981-05-29 Control device of microprogram Pending JPS57197653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8200481A JPS57197653A (en) 1981-05-29 1981-05-29 Control device of microprogram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8200481A JPS57197653A (en) 1981-05-29 1981-05-29 Control device of microprogram

Publications (1)

Publication Number Publication Date
JPS57197653A true JPS57197653A (en) 1982-12-03

Family

ID=13762375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8200481A Pending JPS57197653A (en) 1981-05-29 1981-05-29 Control device of microprogram

Country Status (1)

Country Link
JP (1) JPS57197653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60217438A (en) * 1984-03-02 1985-10-31 テキサス　インスツルメンツ　インコ−ポレイテツド Data processing apparatus and method
JPS62118440A (en) * 1985-11-19 1987-05-29 Sony Corp Program transfer system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60217438A (en) * 1984-03-02 1985-10-31 テキサス　インスツルメンツ　インコ−ポレイテツド Data processing apparatus and method
JPS62118440A (en) * 1985-11-19 1987-05-29 Sony Corp Program transfer system

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