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JPS575152A - Readout control system of control storage device - Google Patents

Readout control system of control storage device

Info

Publication number
JPS575152A
JPS575152A JP7765280A JP7765280A JPS575152A JP S575152 A JPS575152 A JP S575152A JP 7765280 A JP7765280 A JP 7765280A JP 7765280 A JP7765280 A JP 7765280A JP S575152 A JPS575152 A JP S575152A
Authority
JP
Japan
Prior art keywords
storage device
control
address
microinstruction
read
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
JP7765280A
Other languages
Japanese (ja)
Inventor
Shinji Nishibe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7765280A priority Critical patent/JPS575152A/en
Publication of JPS575152A publication Critical patent/JPS575152A/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
    • G06F9/268—Microinstruction selection not based on processing results, e.g. interrupt, patch, first cycle store, diagnostic programs

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 simplify a readout circuit by reading microinstruction words by accessing a control storage device by using sequential addresses generated by a sequential address register. CONSTITUTION:A read-only storage device 30 is accessed by using the OP code of a software instruction word as a starting address to read the starting address of a microprogram and it is stored in an address register 31 with a load signal 34. When this starting address is supplied to a control storage device 32, an initial microinstruction word is read out and then stored in a microinstruction register 33 synchronizing with a clock signal, and it is further transferred to a decoder to exercise prescribed control. Simultaneously with the said operation, a count-up signal 35 is generated and supplied to the address register 31 to generate addresses successively, reading microinstructions successively.
JP7765280A 1980-06-11 1980-06-11 Readout control system of control storage device Pending JPS575152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7765280A JPS575152A (en) 1980-06-11 1980-06-11 Readout control system of control storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7765280A JPS575152A (en) 1980-06-11 1980-06-11 Readout control system of control storage device

Publications (1)

Publication Number Publication Date
JPS575152A true JPS575152A (en) 1982-01-11

Family

ID=13639816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7765280A Pending JPS575152A (en) 1980-06-11 1980-06-11 Readout control system of control storage device

Country Status (1)

Country Link
JP (1) JPS575152A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242797U (en) * 1985-09-04 1987-03-14
JPH0827610A (en) * 1994-07-07 1996-01-30 Toshio Kojima Headgear furnished with cooling radiator fan
US7886133B2 (en) 2006-08-03 2011-02-08 Nec Corporation Information processing apparatus and method for accelerating information processing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242797U (en) * 1985-09-04 1987-03-14
JPH0827610A (en) * 1994-07-07 1996-01-30 Toshio Kojima Headgear furnished with cooling radiator fan
US7886133B2 (en) 2006-08-03 2011-02-08 Nec Corporation Information processing apparatus and method for accelerating information processing

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