JPS6444543A - Microprogram controller - Google Patents

Microprogram controller

Info

Publication number
JPS6444543A
JPS6444543A JP20116487A JP20116487A JPS6444543A JP S6444543 A JPS6444543 A JP S6444543A JP 20116487 A JP20116487 A JP 20116487A JP 20116487 A JP20116487 A JP 20116487A JP S6444543 A JPS6444543 A JP S6444543A
Authority
JP
Japan
Prior art keywords
address
stored
conditional jump
stack file
microinstruction
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
JP20116487A
Other languages
Japanese (ja)
Inventor
Akinori Horikawa
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
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 filed Critical NEC Corp
Priority to JP20116487A priority Critical patent/JPS6444543A/en
Publication of JPS6444543A publication Critical patent/JPS6444543A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To realize a conditional jump waiting function and to obtain also a function for instructing an optional address of a stack file by means for attaining said conditional jump waiting function by utilizing the stack file for executing a subroutine. CONSTITUTION:In the conditional jump waiting function, an instruction 'Store address A in stack file 1' a-1 is formed in an address A-1. The output A-1 from the 2nd multiplexer 5 is inputted to a control storage 2 and an increment means 10. The address A increased at its contents by the means 10 is stored in a register 9, and simultaneously the microinstruction a-1 is read out from the control storage 2 and stored in a microinstruction register 8. The address stored in the register 9 by the microinstruction a-1 is stored in the stack file 1 and then a conditional jump instruction (b) is executed.
JP20116487A 1987-08-11 1987-08-11 Microprogram controller Pending JPS6444543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20116487A JPS6444543A (en) 1987-08-11 1987-08-11 Microprogram controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20116487A JPS6444543A (en) 1987-08-11 1987-08-11 Microprogram controller

Publications (1)

Publication Number Publication Date
JPS6444543A true JPS6444543A (en) 1989-02-16

Family

ID=16436431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20116487A Pending JPS6444543A (en) 1987-08-11 1987-08-11 Microprogram controller

Country Status (1)

Country Link
JP (1) JPS6444543A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049362U (en) * 1990-05-14 1992-01-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049362U (en) * 1990-05-14 1992-01-28

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