JPS5745648A - Data processor - Google Patents

Data processor

Info

Publication number
JPS5745648A
JPS5745648A JP12129780A JP12129780A JPS5745648A JP S5745648 A JPS5745648 A JP S5745648A JP 12129780 A JP12129780 A JP 12129780A JP 12129780 A JP12129780 A JP 12129780A JP S5745648 A JPS5745648 A JP S5745648A
Authority
JP
Japan
Prior art keywords
field
microinstruction
common
group
imd
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.)
Granted
Application number
JP12129780A
Other languages
Japanese (ja)
Other versions
JPS6341091B2 (en
Inventor
Shigeo Sawada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12129780A priority Critical patent/JPS5745648A/en
Publication of JPS5745648A publication Critical patent/JPS5745648A/en
Publication of JPS6341091B2 publication Critical patent/JPS6341091B2/ja
Granted 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
    • G06F9/226—Microinstruction function, e.g. input/output microinstruction; diagnostic microinstruction; microinstruction format

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 enable to simplify the logical circuit and to reduce the machine cycle time, by directly controlling the input gate of decoding circuits for common field group of microinstruction by means of corresponding bits of an ID field. CONSTITUTION:Field groups (common field group) in common use for logical control information and immediate data (IMD) and a plurality of bits of field ID displaying in which any of which is used for the IMD, are provided in microinstruction. The input gate of each decode circuit decoding the respective said common field groups is directly controlled with corresponding bits of the field ID of the microinstruction. For example, AND circuits A1-A9 are inserted among a control memory 17, microinstruction register 19 and decode circuit group 31 as input gates shown in Figure, allowing the said control.
JP12129780A 1980-09-02 1980-09-02 Data processor Granted JPS5745648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12129780A JPS5745648A (en) 1980-09-02 1980-09-02 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12129780A JPS5745648A (en) 1980-09-02 1980-09-02 Data processor

Publications (2)

Publication Number Publication Date
JPS5745648A true JPS5745648A (en) 1982-03-15
JPS6341091B2 JPS6341091B2 (en) 1988-08-15

Family

ID=14807767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12129780A Granted JPS5745648A (en) 1980-09-02 1980-09-02 Data processor

Country Status (1)

Country Link
JP (1) JPS5745648A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61114341A (en) * 1984-10-01 1986-06-02 バロ−ス・コ−ポレ−シヨン Processing system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542640A (en) * 1977-06-08 1979-01-10 Hitachi Ltd Allocating circuit for microprogram address
JPS54152938A (en) * 1978-05-24 1979-12-01 Toshiba Corp Microprogram pipeline register control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542640A (en) * 1977-06-08 1979-01-10 Hitachi Ltd Allocating circuit for microprogram address
JPS54152938A (en) * 1978-05-24 1979-12-01 Toshiba Corp Microprogram pipeline register control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61114341A (en) * 1984-10-01 1986-06-02 バロ−ス・コ−ポレ−シヨン Processing system

Also Published As

Publication number Publication date
JPS6341091B2 (en) 1988-08-15

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