JPS5537656A - Microprogram control system - Google Patents

Microprogram control system

Info

Publication number
JPS5537656A
JPS5537656A JP11050978A JP11050978A JPS5537656A JP S5537656 A JPS5537656 A JP S5537656A JP 11050978 A JP11050978 A JP 11050978A JP 11050978 A JP11050978 A JP 11050978A JP S5537656 A JPS5537656 A JP S5537656A
Authority
JP
Japan
Prior art keywords
memory unit
unit
stored
instruction
address information
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
JP11050978A
Other languages
Japanese (ja)
Other versions
JPS6051738B2 (en
Inventor
Ryushi Hiroya
Sotoshi Osada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11050978A priority Critical patent/JPS6051738B2/en
Publication of JPS5537656A publication Critical patent/JPS5537656A/en
Publication of JPS6051738B2 publication Critical patent/JPS6051738B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To reduce the required capacity of a memory unit by providing a 1st memory unit stored with microprograms and a 2nd memory unit stored with its address information.
CONSTITUTION: An instruction from main memory unit MM is transferred to instruction register IR and by using function part (f) of the instruction as address information, parts P1 and P2, and control information P3 are simultaneously read out from 2nd memory unit CMA and supplied to address controller CM-CTL. Corresponding to the contents of part P3, CM-CTL sends parts P1 and P2 to the 1st memory unit CM stored with microprogram μPG and its contents are read out to control information register CMR to control arithmetic part ALU. A common arithmetic program of several instructions is made into a subroutine and stored in fixed addresses of unit CM and after this is executed in sequence, individual μPG of unit CM is executed by address information assigned by unit CMA. Consequently, the required capacity of unit CM can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP11050978A 1978-09-08 1978-09-08 Microprogram control method Expired JPS6051738B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11050978A JPS6051738B2 (en) 1978-09-08 1978-09-08 Microprogram control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11050978A JPS6051738B2 (en) 1978-09-08 1978-09-08 Microprogram control method

Publications (2)

Publication Number Publication Date
JPS5537656A true JPS5537656A (en) 1980-03-15
JPS6051738B2 JPS6051738B2 (en) 1985-11-15

Family

ID=14537575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11050978A Expired JPS6051738B2 (en) 1978-09-08 1978-09-08 Microprogram control method

Country Status (1)

Country Link
JP (1) JPS6051738B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199046A (en) * 1981-06-03 1982-12-06 Mitsubishi Electric Corp Microprogram controlling method
JPS58115548A (en) * 1981-12-29 1983-07-09 Fujitsu Ltd Microprogram controlling system
JPS5938853A (en) * 1982-08-27 1984-03-02 Nec Corp Information processing device
JPS59174947A (en) * 1983-03-25 1984-10-03 Fujitsu Ltd System for controlling order of microprogram

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199046A (en) * 1981-06-03 1982-12-06 Mitsubishi Electric Corp Microprogram controlling method
JPS58115548A (en) * 1981-12-29 1983-07-09 Fujitsu Ltd Microprogram controlling system
JPS6226727B2 (en) * 1981-12-29 1987-06-10 Fujitsu Ltd
JPS5938853A (en) * 1982-08-27 1984-03-02 Nec Corp Information processing device
JPH0128965B2 (en) * 1982-08-27 1989-06-07 Nippon Electric Co
JPS59174947A (en) * 1983-03-25 1984-10-03 Fujitsu Ltd System for controlling order of microprogram
JPH0332814B2 (en) * 1983-03-25 1991-05-14 Fujitsu Ltd

Also Published As

Publication number Publication date
JPS6051738B2 (en) 1985-11-15

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