DE2902488C2 - - Google Patents
Info
- Publication number
- DE2902488C2 DE2902488C2 DE19792902488 DE2902488A DE2902488C2 DE 2902488 C2 DE2902488 C2 DE 2902488C2 DE 19792902488 DE19792902488 DE 19792902488 DE 2902488 A DE2902488 A DE 2902488A DE 2902488 C2 DE2902488 C2 DE 2902488C2
- Authority
- DE
- Germany
- Prior art keywords
- gate
- dual
- flip
- output
- adder
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/52—Multiplying; Dividing
- G06F7/523—Multiplying only
- G06F7/53—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel
- G06F7/5318—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel with column wise addition of partial products, e.g. using Wallace tree, Dadda counters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/50—Adding; Subtracting
- G06F7/504—Adding; Subtracting in bit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/50—Adding; Subtracting
- G06F7/505—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F2207/38—Indexing scheme relating to groups G06F7/38 - G06F7/575
- G06F2207/3804—Details
- G06F2207/3808—Details concerning the type of numbers or the way they are handled
- G06F2207/3852—Calculation with most significant digit first
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F2207/38—Indexing scheme relating to groups G06F7/38 - G06F7/575
- G06F2207/48—Indexing scheme relating to groups G06F7/48 - G06F7/575
- G06F2207/4802—Special implementations
- G06F2207/481—Counters performing arithmetic operations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Complex Calculations (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792902488 DE2902488A1 (de) | 1979-01-23 | 1979-01-23 | Elektronische schaltung zur durchfuehrung der addition von dualzahlen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792902488 DE2902488A1 (de) | 1979-01-23 | 1979-01-23 | Elektronische schaltung zur durchfuehrung der addition von dualzahlen |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2902488A1 DE2902488A1 (de) | 1980-07-31 |
DE2902488C2 true DE2902488C2 (zh) | 1988-12-29 |
Family
ID=6061211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792902488 Granted DE2902488A1 (de) | 1979-01-23 | 1979-01-23 | Elektronische schaltung zur durchfuehrung der addition von dualzahlen |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2902488A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5912832A (en) * | 1996-09-12 | 1999-06-15 | Board Of Regents, The University Of Texas System | Fast n-bit by n-bit multipliers using 4-bit by 4-bit multipliers and cascaded adders |
-
1979
- 1979-01-23 DE DE19792902488 patent/DE2902488A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2902488A1 (de) | 1980-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |