JPS5563434A - Adder - Google Patents
AdderInfo
- 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
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
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)
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)
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 |
-
1978
- 1978-11-07 JP JP13689078A patent/JPS6036613B2/en not_active Expired
Cited By (5)
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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