JPS5616245A - Microprogram control system - Google Patents

Microprogram control system

Info

Publication number
JPS5616245A
JPS5616245A JP9194879A JP9194879A JPS5616245A JP S5616245 A JPS5616245 A JP S5616245A JP 9194879 A JP9194879 A JP 9194879A JP 9194879 A JP9194879 A JP 9194879A JP S5616245 A JPS5616245 A JP S5616245A
Authority
JP
Japan
Prior art keywords
address
instruction
selectors
fed
register
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
JP9194879A
Other languages
Japanese (ja)
Inventor
Ryoichi Mazaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9194879A priority Critical patent/JPS5616245A/en
Publication of JPS5616245A publication Critical patent/JPS5616245A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the processing speed with broad range of branched address, by producing the address of the next microinstruction, through the replacement of the non-use filed of microinstruction with an arbitrary part or all of the micro instruction addresses.
CONSTITUTION: The micro μ program read out is set to the μ instruction data register 9, the type of this μ instruction is classified with the decoder 10, and the selection signal 11 is fed to the selectors 12W15. Further, to the decoders 16W19, the signal of a given bit of μ instruction set to the register 9 is fed to select the selectors 20W23 with the respective decoders 16W19. Further, the output data selected from the selectors 20W23 is fed to the input gate A of the selectors 12W15, and empty address of a given bit of the register 9 is fed to the input gate B. Further, the next instruction address from the incrementor 24 inputting the address outputted from the μ instruction address register 25 is fed to the gate C of the selectors 12W15 and the address of the next μ instruction is produced, enabling to obtain broader range of branched addresses.
COPYRIGHT: (C)1981,JPO&Japio
JP9194879A 1979-07-19 1979-07-19 Microprogram control system Pending JPS5616245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9194879A JPS5616245A (en) 1979-07-19 1979-07-19 Microprogram control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9194879A JPS5616245A (en) 1979-07-19 1979-07-19 Microprogram control system

Publications (1)

Publication Number Publication Date
JPS5616245A true JPS5616245A (en) 1981-02-17

Family

ID=14040800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9194879A Pending JPS5616245A (en) 1979-07-19 1979-07-19 Microprogram control system

Country Status (1)

Country Link
JP (1) JPS5616245A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05178570A (en) * 1991-12-24 1993-07-20 Mitsubishi Electric Corp Landing door device for elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05178570A (en) * 1991-12-24 1993-07-20 Mitsubishi Electric Corp Landing door device for elevator
JP2588088B2 (en) * 1991-12-24 1997-03-05 三菱電機株式会社 Elevator landing door device

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