JPS5563434A - Adder - Google Patents

Adder

Info

Publication number
JPS5563434A
JPS5563434A JP13689078A JP13689078A JPS5563434A JP S5563434 A JPS5563434 A JP S5563434A JP 13689078 A JP13689078 A JP 13689078A JP 13689078 A JP13689078 A JP 13689078A JP S5563434 A JPS5563434 A JP S5563434A
Authority
JP
Japan
Prior art keywords
adder
full
selectors
logically
selector
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.)
Granted
Application number
JP13689078A
Other languages
Japanese (ja)
Other versions
JPS6036613B2 (en
Inventor
Akio Shinagawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13689078A priority Critical patent/JPS6036613B2/en
Publication of JPS5563434A publication Critical patent/JPS5563434A/en
Publication of JPS6036613B2 publication Critical patent/JPS6036613B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the number of components, by the operation of carrier delivery adder in a case and of carrier hold adder in another case.
CONSTITUTION: The selectors β0 to βn-1 are located between the full adders, the selector γ is attached to the full adder of the least significant digit and the selector δ is to the full adder at the most significant digit. To the selectors β, γ, δ, the control signals CTRβ, CTRγ, CTRδ are inputted and when those control signals are all logically 1, the adder is operated as the carry delivery adder. On the other hand, when those signals are all logically 0, it is operated as the carry hold adder.
COPYRIGHT: (C)1980,JPO&Japio
JP13689078A 1978-11-07 1978-11-07 adder Expired JPS6036613B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13689078A JPS6036613B2 (en) 1978-11-07 1978-11-07 adder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13689078A JPS6036613B2 (en) 1978-11-07 1978-11-07 adder

Publications (2)

Publication Number Publication Date
JPS5563434A true JPS5563434A (en) 1980-05-13
JPS6036613B2 JPS6036613B2 (en) 1985-08-21

Family

ID=15185937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13689078A Expired JPS6036613B2 (en) 1978-11-07 1978-11-07 adder

Country Status (1)

Country Link
JP (1) JPS6036613B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164334A (en) * 1981-04-02 1982-10-08 Nec Corp Operating device
JPS57199043A (en) * 1981-06-03 1982-12-06 Nec Corp Operating device
US5109480A (en) * 1988-12-20 1992-04-28 Hitachi, Ltd. Drawing processor including arithmetical unit for improved superposed picture display

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02116809A (en) * 1988-10-27 1990-05-01 Omron Tateisi Electron Co Optical coupler
CN1326686C (en) * 2005-07-20 2007-07-18 哈尔滨工业大学 Process for preparing mixing material of actively deformed

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164334A (en) * 1981-04-02 1982-10-08 Nec Corp Operating device
JPS622328B2 (en) * 1981-04-02 1987-01-19 Nippon Electric Co
JPS57199043A (en) * 1981-06-03 1982-12-06 Nec Corp Operating device
JPS622329B2 (en) * 1981-06-03 1987-01-19 Nippon Electric Co
US5109480A (en) * 1988-12-20 1992-04-28 Hitachi, Ltd. Drawing processor including arithmetical unit for improved superposed picture display

Also Published As

Publication number Publication date
JPS6036613B2 (en) 1985-08-21

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