JPS55119747A - Microprogram control unit - Google Patents

Microprogram control unit

Info

Publication number
JPS55119747A
JPS55119747A JP2705979A JP2705979A JPS55119747A JP S55119747 A JPS55119747 A JP S55119747A JP 2705979 A JP2705979 A JP 2705979A JP 2705979 A JP2705979 A JP 2705979A JP S55119747 A JPS55119747 A JP S55119747A
Authority
JP
Japan
Prior art keywords
register
address
micro instruction
stored
branch
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
JP2705979A
Other languages
Japanese (ja)
Inventor
Hisao Takane
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 JP2705979A priority Critical patent/JPS55119747A/en
Publication of JPS55119747A publication Critical patent/JPS55119747A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To enable multi-branch without limit of the branched address set, by storing the branched address to a plurality of buffer registers in advance and selecting one of a plurality of buffer registers with the branch conditions.
CONSTITUTION: The micro instruction memory unit 10 stores the micro instruction, the address is stored to the address register 70, this address is stored 60 and the micro instruction from the unit 10 is stored in the control register 20. A part of the micro instruction of the register 20 is stored in the buffer registers 30, 31, and 32, and the content and either one of the branch address of the register 20 are selected 40 with the test result of the test circuit or the micro instruction of the register 20, and the content of the circuit 40 and the register 70 is selected 50 with the test result of the circuit 90 or micro instruction of the register 20. Thus, without limit to the set of the branched address, multi-branching can be made.
COPYRIGHT: (C)1980,JPO&Japio
JP2705979A 1979-03-08 1979-03-08 Microprogram control unit Pending JPS55119747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2705979A JPS55119747A (en) 1979-03-08 1979-03-08 Microprogram control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2705979A JPS55119747A (en) 1979-03-08 1979-03-08 Microprogram control unit

Publications (1)

Publication Number Publication Date
JPS55119747A true JPS55119747A (en) 1980-09-13

Family

ID=12210484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2705979A Pending JPS55119747A (en) 1979-03-08 1979-03-08 Microprogram control unit

Country Status (1)

Country Link
JP (1) JPS55119747A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176748A (en) * 1982-04-09 1983-10-17 Nec Corp Microprogram controller
JPS58176750A (en) * 1982-04-09 1983-10-17 Nec Corp Microprogram controller
JPS5999549A (en) * 1982-11-09 1984-06-08 シ−メンス，アクチエンゲゼルシヤフト Chain address formation equipment and method for sequencer
JPS6190816A (en) * 1984-10-08 1986-05-09 Toshiba Corp Manufacture of coiled material
JPS6224328A (en) * 1985-07-23 1987-02-02 Nec Corp Program counter circuit
JPS62199857U (en) * 1987-05-21 1987-12-19
JPS62199856U (en) * 1987-05-21 1987-12-19
JPH01224836A (en) * 1988-03-04 1989-09-07 Nippon Hoso Kyokai <Nhk> Processor controller

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176748A (en) * 1982-04-09 1983-10-17 Nec Corp Microprogram controller
JPS58176750A (en) * 1982-04-09 1983-10-17 Nec Corp Microprogram controller
JPS5999549A (en) * 1982-11-09 1984-06-08 シ−メンス，アクチエンゲゼルシヤフト Chain address formation equipment and method for sequencer
JPS6190816A (en) * 1984-10-08 1986-05-09 Toshiba Corp Manufacture of coiled material
JPS6224328A (en) * 1985-07-23 1987-02-02 Nec Corp Program counter circuit
JPS62199857U (en) * 1987-05-21 1987-12-19
JPS62199856U (en) * 1987-05-21 1987-12-19
JPH01224836A (en) * 1988-03-04 1989-09-07 Nippon Hoso Kyokai <Nhk> Processor controller

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