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JPS542640A - Allocating circuit for microprogram address - Google Patents

Allocating circuit for microprogram address

Info

Publication number
JPS542640A
JPS542640A JP6667777A JP6667777A JPS542640A JP S542640 A JPS542640 A JP S542640A JP 6667777 A JP6667777 A JP 6667777A JP 6667777 A JP6667777 A JP 6667777A JP S542640 A JPS542640 A JP S542640A
Authority
JP
Japan
Prior art keywords
allocating circuit
microprogram address
circuit
address
microprogram
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
JP6667777A
Other languages
Japanese (ja)
Inventor
Yoshio Yoshiura
Hiroshi Fujita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6667777A priority Critical patent/JPS542640A/en
Publication of JPS542640A publication Critical patent/JPS542640A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To improve the efficiency in use of a memory by adding a circuit which inputs only effective bits, in case of a short-length instruction code, to an address decoder part for instruction codes.
COPYRIGHT: (C)1979,JPO&Japio
JP6667777A 1977-06-08 1977-06-08 Allocating circuit for microprogram address Pending JPS542640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6667777A JPS542640A (en) 1977-06-08 1977-06-08 Allocating circuit for microprogram address

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6667777A JPS542640A (en) 1977-06-08 1977-06-08 Allocating circuit for microprogram address

Publications (1)

Publication Number Publication Date
JPS542640A true JPS542640A (en) 1979-01-10

Family

ID=13322783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6667777A Pending JPS542640A (en) 1977-06-08 1977-06-08 Allocating circuit for microprogram address

Country Status (1)

Country Link
JP (1) JPS542640A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162167A (en) * 1979-06-05 1980-12-17 Canon Inc Electronic program computer
JPS5745648A (en) * 1980-09-02 1982-03-15 Hitachi Ltd Data processor
JPS59217620A (en) * 1983-05-05 1984-12-07 ヘミ−・リンツ・アクチエンゲゼルシヤフト Manufacture of small cyanuric acid content isocyanic acid-ammonia-gas mixture and apparatus for carrying out process
JPS6310235A (en) * 1986-06-30 1988-01-16 Nec Corp Instruction decoder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162167A (en) * 1979-06-05 1980-12-17 Canon Inc Electronic program computer
JPS5745648A (en) * 1980-09-02 1982-03-15 Hitachi Ltd Data processor
JPS6341091B2 (en) * 1980-09-02 1988-08-15 Hitachi Ltd
JPS59217620A (en) * 1983-05-05 1984-12-07 ヘミ−・リンツ・アクチエンゲゼルシヤフト Manufacture of small cyanuric acid content isocyanic acid-ammonia-gas mixture and apparatus for carrying out process
JPS6230129B2 (en) * 1983-05-05 1987-06-30 Chemie Linz Ag
JPS6310235A (en) * 1986-06-30 1988-01-16 Nec Corp Instruction decoder

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