SE9302158L - En extremt snabb adderaranordning - Google Patents
En extremt snabb adderaranordningInfo
- Publication number
- SE9302158L SE9302158L SE9302158A SE9302158A SE9302158L SE 9302158 L SE9302158 L SE 9302158L SE 9302158 A SE9302158 A SE 9302158A SE 9302158 A SE9302158 A SE 9302158A SE 9302158 L SE9302158 L SE 9302158L
- Authority
- SE
- Sweden
- Prior art keywords
- architecture
- adder
- new
- clock
- dblc
- Prior art date
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
- G06F7/50—Adding; Subtracting
- G06F7/505—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination
- G06F7/506—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages
- G06F7/508—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages using carry look-ahead circuits
-
- 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
- G06F7/506—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages
- G06F7/507—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination with simultaneous carry generation for, or propagation over, two or more stages using selection between two conditionally calculated carry or sum values
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
- H03K19/094—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors
- H03K19/0944—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors using MOSFET or insulated gate field-effect transistors, i.e. IGFET
- H03K19/0948—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors using MOSFET or insulated gate field-effect transistors, i.e. IGFET using CMOS or complementary insulated gate field-effect transistors
-
- 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
- G06F2207/386—Special constructional features
- G06F2207/3872—Precharge of output to prevent leakage
-
- 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
- G06F2207/386—Special constructional features
- G06F2207/3876—Alternation of true and inverted stages
-
- 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
- G06F2207/506—Indexing scheme relating to groups G06F7/506 - G06F7/508
- G06F2207/5063—2-input gates, i.e. only using 2-input logical gates, e.g. binary carry look-ahead, e.g. Kogge-Stone or Ladner-Fischer adder
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Complex Calculations (AREA)
- Logic Circuits (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9302158A SE9302158L (sv) | 1993-06-22 | 1993-06-22 | En extremt snabb adderaranordning |
PCT/SE1994/000614 WO1995000900A1 (en) | 1993-06-22 | 1994-06-21 | An ultrafast adder arrangement |
AU70896/94A AU7089694A (en) | 1993-06-22 | 1994-06-21 | An ultrafast adder arrangement |
EP94919952A EP0705459A1 (en) | 1993-06-22 | 1994-06-21 | An ultrafast adder arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9302158A SE9302158L (sv) | 1993-06-22 | 1993-06-22 | En extremt snabb adderaranordning |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9302158D0 SE9302158D0 (sv) | 1993-06-22 |
SE9302158L true SE9302158L (sv) | 1994-12-23 |
Family
ID=20390377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9302158A SE9302158L (sv) | 1993-06-22 | 1993-06-22 | En extremt snabb adderaranordning |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0705459A1 (sv) |
AU (1) | AU7089694A (sv) |
SE (1) | SE9302158L (sv) |
WO (1) | WO1995000900A1 (sv) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG79988A1 (en) * | 1998-08-06 | 2001-04-17 | Oki Techno Ct Singapore Pte | Apparatus for binary addition |
US6329838B1 (en) * | 1999-03-09 | 2001-12-11 | Kabushiki Kaisha Toshiba | Logic circuits and carry-lookahead circuits |
US6314507B1 (en) | 1999-11-22 | 2001-11-06 | John Doyle | Address generation unit |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4956802A (en) * | 1988-12-14 | 1990-09-11 | Sun Microsystems, Inc. | Method and apparatus for a parallel carry generation adder |
US5166899A (en) * | 1990-07-18 | 1992-11-24 | Hewlett-Packard Company | Lookahead adder |
JPH056263A (ja) * | 1991-06-27 | 1993-01-14 | Nec Corp | 加算器およびその加算器を用いた絶対値演算回路 |
-
1993
- 1993-06-22 SE SE9302158A patent/SE9302158L/sv not_active Application Discontinuation
-
1994
- 1994-06-21 AU AU70896/94A patent/AU7089694A/en not_active Abandoned
- 1994-06-21 WO PCT/SE1994/000614 patent/WO1995000900A1/en not_active Application Discontinuation
- 1994-06-21 EP EP94919952A patent/EP0705459A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AU7089694A (en) | 1995-01-17 |
WO1995000900A1 (en) | 1995-01-05 |
EP0705459A1 (en) | 1996-04-10 |
SE9302158D0 (sv) | 1993-06-22 |
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Legal Events
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NAV | Patent application has lapsed |
Ref document number: 9302158-2 |