JPS5474337A - Microprogram controller - Google Patents

Microprogram controller

Info

Publication number
JPS5474337A
JPS5474337A JP14177877A JP14177877A JPS5474337A JP S5474337 A JPS5474337 A JP S5474337A JP 14177877 A JP14177877 A JP 14177877A JP 14177877 A JP14177877 A JP 14177877A JP S5474337 A JPS5474337 A JP S5474337A
Authority
JP
Japan
Prior art keywords
address
microinstruction
stored
branch
execution
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
JP14177877A
Other languages
Japanese (ja)
Inventor
Hisao Takane
Hisao Nakajo
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.)
Toshiba Corp
NEC Corp
Original Assignee
Toshiba Corp
NEC Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, NEC Corp, Tokyo Shibaura Electric Co Ltd, Nippon Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14177877A priority Critical patent/JPS5474337A/en
Publication of JPS5474337A publication Critical patent/JPS5474337A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve efficiency by storing a branch address at the same time as the execution of a branch operation and by using this stored address as the address of the next executive microprogram.
CONSTITUTION: A microinstruction, read out from microinstruction memory unit 10, is stored in control register 20 and controls arithmetic unit 90 for the execution of arithmetic. If this instruction assigns the write to push-down memory 40, contents of address register 80 or a branch address in the microinstruction is stored in push-down memory 40 and buffer register 50. According to the test results of test circuit 100, selector circuit 60 makes selections and uses it as the address of the next microinstruction.
COPYRIGHT: (C)1979,JPO&Japio
JP14177877A 1977-11-26 1977-11-26 Microprogram controller Pending JPS5474337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14177877A JPS5474337A (en) 1977-11-26 1977-11-26 Microprogram controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14177877A JPS5474337A (en) 1977-11-26 1977-11-26 Microprogram controller

Publications (1)

Publication Number Publication Date
JPS5474337A true JPS5474337A (en) 1979-06-14

Family

ID=15299941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14177877A Pending JPS5474337A (en) 1977-11-26 1977-11-26 Microprogram controller

Country Status (1)

Country Link
JP (1) JPS5474337A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5694443A (en) * 1979-12-27 1981-07-30 Nec Corp Microprogram control device
JPS56140444A (en) * 1980-04-03 1981-11-02 Nec Corp Microprogram control system
JPS57157355A (en) * 1981-03-05 1982-09-28 Burroughs Corp Microprogrammed data processing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5694443A (en) * 1979-12-27 1981-07-30 Nec Corp Microprogram control device
JPS56140444A (en) * 1980-04-03 1981-11-02 Nec Corp Microprogram control system
JPS6250854B2 (en) * 1980-04-03 1987-10-27 Nippon Electric Co
JPS57157355A (en) * 1981-03-05 1982-09-28 Burroughs Corp Microprogrammed data processing system
JPS6346857B2 (en) * 1981-03-05 1988-09-19 Yunishisu Corp

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