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JPS5644941A - Microprogram control unit - Google Patents

Microprogram control unit

Info

Publication number
JPS5644941A
JPS5644941A JP12137379A JP12137379A JPS5644941A JP S5644941 A JPS5644941 A JP S5644941A JP 12137379 A JP12137379 A JP 12137379A JP 12137379 A JP12137379 A JP 12137379A JP S5644941 A JPS5644941 A JP S5644941A
Authority
JP
Japan
Prior art keywords
micro instruction
buffer register
control unit
execute
microprogram control
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
JP12137379A
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 JP12137379A priority Critical patent/JPS5644941A/en
Publication of JPS5644941A publication Critical patent/JPS5644941A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To execute processings different in partial operation with one micro instruction, by substituting a part of the micro instruction, which is to be executed, with the micro instruction, which is held in a buffer register, according to the arithmetic result to execute the micro instruction.
CONSTITUTION: When the operation of arithmetic unit A out of operations instructed by a certain micro instruction is changed to execute processings different in partial operation, a pattern corresponding to the operation to be made different is entered in pattern field PAT by the advanced micro instruction, and buffer register control field BRC is set to "1". Thus, contents of pattern field PAT are stored in buffer register 30 by this advanced micro instruction.
COPYRIGHT: (C)1981,JPO&Japio
JP12137379A 1979-09-20 1979-09-20 Microprogram control unit Pending JPS5644941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12137379A JPS5644941A (en) 1979-09-20 1979-09-20 Microprogram control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12137379A JPS5644941A (en) 1979-09-20 1979-09-20 Microprogram control unit

Publications (1)

Publication Number Publication Date
JPS5644941A true JPS5644941A (en) 1981-04-24

Family

ID=14809621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12137379A Pending JPS5644941A (en) 1979-09-20 1979-09-20 Microprogram control unit

Country Status (1)

Country Link
JP (1) JPS5644941A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60238932A (en) * 1984-05-11 1985-11-27 Nec Corp Data processor
JPH033037A (en) * 1989-05-31 1991-01-09 Nec Corp Microprogram control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60238932A (en) * 1984-05-11 1985-11-27 Nec Corp Data processor
JPH033037A (en) * 1989-05-31 1991-01-09 Nec Corp Microprogram control system

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