JPS57187747A - Microprgram controlled information processing device - Google Patents

Microprgram controlled information processing device

Info

Publication number
JPS57187747A
JPS57187747A JP7161781A JP7161781A JPS57187747A JP S57187747 A JPS57187747 A JP S57187747A JP 7161781 A JP7161781 A JP 7161781A JP 7161781 A JP7161781 A JP 7161781A JP S57187747 A JPS57187747 A JP S57187747A
Authority
JP
Japan
Prior art keywords
microinstruction
clock
register
speed
specific
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
JP7161781A
Other languages
Japanese (ja)
Inventor
Akihiko Ishikawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7161781A priority Critical patent/JPS57187747A/en
Publication of JPS57187747A publication Critical patent/JPS57187747A/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

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

PURPOSE:To execute repetitive operations in a high speed, by sending the high- speed clock of a clock controlling circuit to a microinstruction register to fix contents of this register and fixing a specific switch to a specific side so as to execute the repetitive operation of a specific microinstruction. CONSTITUTION:An FF6 is set by microinstruction, and a colock controlling circuit 7 switches the nroaml clock to a high-speed clock having a period shorter than the normal clock in response to the set of the FF6. A repeat counter 54 counts the number of repetitive executions of a specific microinstruction; and when the counter 54 counts a designated number, the FF6 is reset. Until the FF6 is reset, high-speed clocks of the circuit 7 are supplied to a microinstruction register 3, and contents of the register 3 are fixed. These contents are sent to switches 57 and 59, and switches 57 and 59 are fixed to the side for one-bit multiplication, and thus the operation is perormed in a high speed.
JP7161781A 1981-05-13 1981-05-13 Microprgram controlled information processing device Pending JPS57187747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7161781A JPS57187747A (en) 1981-05-13 1981-05-13 Microprgram controlled information processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7161781A JPS57187747A (en) 1981-05-13 1981-05-13 Microprgram controlled information processing device

Publications (1)

Publication Number Publication Date
JPS57187747A true JPS57187747A (en) 1982-11-18

Family

ID=13465782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7161781A Pending JPS57187747A (en) 1981-05-13 1981-05-13 Microprgram controlled information processing device

Country Status (1)

Country Link
JP (1) JPS57187747A (en)

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