JPS54153542A - Data processor of microprogram control type - Google Patents

Data processor of microprogram control type

Info

Publication number
JPS54153542A
JPS54153542A JP6266478A JP6266478A JPS54153542A JP S54153542 A JPS54153542 A JP S54153542A JP 6266478 A JP6266478 A JP 6266478A JP 6266478 A JP6266478 A JP 6266478A JP S54153542 A JPS54153542 A JP S54153542A
Authority
JP
Japan
Prior art keywords
address
data processor
control type
subroutine
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
JP6266478A
Other languages
Japanese (ja)
Inventor
Hisanobu Mori
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 JP6266478A priority Critical patent/JPS54153542A/en
Publication of JPS54153542A publication Critical patent/JPS54153542A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To establish the microprogram control type data processor, in which the processing interrupted can quickly be restarted when the processing is returned from the sub-routine.
CONSTITUTION: The micro instruction in the control memory 11 designated with the microprogram address 51 is stored in the register 12, and a part 52 is used as the address for the micro instruction read out next and used as the return address of the subroutine and stored in the subroutine stack 13. The newest storage location is displayed with the subroutine stack point 14. The address 51 is determined by selecting either one of the address 55 selected with either of the output 53, part 52 or address 54, the output 56 of the address register 16, or the interruption address 57, by means of the selection gate 17.
COPYRIGHT: (C)1979,JPO&Japio
JP6266478A 1978-05-24 1978-05-24 Data processor of microprogram control type Pending JPS54153542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6266478A JPS54153542A (en) 1978-05-24 1978-05-24 Data processor of microprogram control type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6266478A JPS54153542A (en) 1978-05-24 1978-05-24 Data processor of microprogram control type

Publications (1)

Publication Number Publication Date
JPS54153542A true JPS54153542A (en) 1979-12-03

Family

ID=13206779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6266478A Pending JPS54153542A (en) 1978-05-24 1978-05-24 Data processor of microprogram control type

Country Status (1)

Country Link
JP (1) JPS54153542A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143643A (en) * 1981-03-03 1982-09-04 Toshiba Corp Data processing device
JPS57147761A (en) * 1981-02-04 1982-09-11 Burroughs Corp Circuit for and method of controlling subroutine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147761A (en) * 1981-02-04 1982-09-11 Burroughs Corp Circuit for and method of controlling subroutine
JPS6346856B2 (en) * 1981-02-04 1988-09-19 Yunishisu Corp
JPS57143643A (en) * 1981-03-03 1982-09-04 Toshiba Corp Data processing device

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