DE3473947D1 - Multiple precision floating-point unit - Google Patents
Multiple precision floating-point unitInfo
- Publication number
- DE3473947D1 DE3473947D1 DE8484300905T DE3473947T DE3473947D1 DE 3473947 D1 DE3473947 D1 DE 3473947D1 DE 8484300905 T DE8484300905 T DE 8484300905T DE 3473947 T DE3473947 T DE 3473947T DE 3473947 D1 DE3473947 D1 DE 3473947D1
- Authority
- DE
- Germany
- Prior art keywords
- point unit
- precision floating
- multiple precision
- floating
- point
- 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
-
- 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
- G06F7/483—Computations with numbers represented by a non-linear combination of denominational numbers, e.g. rational numbers, logarithmic number system or floating-point numbers
-
- 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
- G06F2207/3812—Devices capable of handling different types of numbers
- G06F2207/382—Reconfigurable for different fixed word lengths
-
- 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
- G06F2207/3856—Operand swapping
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/465,955 US4612628A (en) | 1983-02-14 | 1983-02-14 | Floating-point unit constructed of identical modules |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3473947D1 true DE3473947D1 (en) | 1988-10-13 |
Family
ID=23849851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484300905T Expired DE3473947D1 (en) | 1983-02-14 | 1984-02-13 | Multiple precision floating-point unit |
Country Status (5)
Country | Link |
---|---|
US (1) | US4612628A (de) |
EP (2) | EP0226261A3 (de) |
JP (1) | JPS6057431A (de) |
CA (1) | CA1201207A (de) |
DE (1) | DE3473947D1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943940A (en) * | 1984-09-27 | 1990-07-24 | Advanced Micro Devices, Inc. | Floating point add/subtract and multiplying assemblies sharing common normalization, rounding and exponential apparatus |
US4698771A (en) * | 1984-12-31 | 1987-10-06 | Gte Communication Systems Corporation | Adder circuit for encoded PCM samples |
US4763294A (en) * | 1985-12-19 | 1988-08-09 | Wang Laboratories, Inc. | Method and apparatus for floating point operations |
US4884231A (en) * | 1986-09-26 | 1989-11-28 | Performance Semiconductor Corporation | Microprocessor system with extended arithmetic logic unit |
US4811214A (en) * | 1986-11-14 | 1989-03-07 | Princeton University | Multinode reconfigurable pipeline computer |
JPH0719204B2 (ja) * | 1987-09-17 | 1995-03-06 | 筑波大学長 | 浮動小数点演算方式 |
US4901267A (en) * | 1988-03-14 | 1990-02-13 | Weitek Corporation | Floating point circuit with configurable number of multiplier cycles and variable divide cycle ratio |
US4901268A (en) * | 1988-08-19 | 1990-02-13 | General Electric Company | Multiple function data processor |
US5062041A (en) * | 1988-12-29 | 1991-10-29 | Wang Laboratories, Inc. | Processor/coprocessor interface apparatus including microinstruction clock synchronization |
US4961162A (en) * | 1989-01-13 | 1990-10-02 | International Business Machines Corporation | Multiprocessing system for performing floating point arithmetic operations |
US4941120A (en) * | 1989-04-17 | 1990-07-10 | International Business Machines Corporation | Floating point normalization and rounding prediction circuit |
US5021985A (en) * | 1990-01-19 | 1991-06-04 | Weitek Corporation | Variable latency method and apparatus for floating-point coprocessor |
JP2651267B2 (ja) * | 1990-07-26 | 1997-09-10 | 富士通株式会社 | 演算処理装置及び演算処理方法 |
US5268854A (en) * | 1990-11-13 | 1993-12-07 | Kabushiki Kaisha Toshiba | Microprocessor with a function for three-dimensional graphic processing |
US5557734A (en) * | 1994-06-17 | 1996-09-17 | Applied Intelligent Systems, Inc. | Cache burst architecture for parallel processing, such as for image processing |
US5632514A (en) * | 1996-03-26 | 1997-05-27 | Johnson, Jr.; Marvin B. | Juvenile safety gate latch for swing gate |
US10007487B1 (en) * | 2016-06-30 | 2018-06-26 | Altera Corporation | Double-precision floating-point operation |
US10275391B2 (en) * | 2017-01-23 | 2019-04-30 | International Business Machines Corporation | Combining of several execution units to compute a single wide scalar result |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3651476A (en) * | 1970-04-16 | 1972-03-21 | Ibm | Processor with improved controls for selecting an operand from a local storage unit, an alu output register or both |
JPS5128450B2 (de) * | 1971-10-06 | 1976-08-19 | ||
DE2222195A1 (de) * | 1972-05-05 | 1973-11-22 | Siemens Ag | Anordnung zur verarbeitung von operanden von programmen |
JPS5819091B2 (ja) * | 1976-02-26 | 1983-04-16 | キヤノン株式会社 | デ−タ処理装置 |
US4179734A (en) * | 1976-07-02 | 1979-12-18 | Floating Point Systems, Inc. | Floating point data processor having fast access memory means |
JPS5438724A (en) * | 1977-09-02 | 1979-03-23 | Hitachi Ltd | Display unit |
US4161784A (en) * | 1978-01-05 | 1979-07-17 | Honeywell Information Systems, Inc. | Microprogrammable floating point arithmetic unit capable of performing arithmetic operations on long and short operands |
US4476537A (en) * | 1981-06-11 | 1984-10-09 | Data General Corporation | Fixed point and floating point computation units using commonly shared control fields |
-
1983
- 1983-02-14 US US06/465,955 patent/US4612628A/en not_active Expired - Lifetime
- 1983-12-21 CA CA000443901A patent/CA1201207A/en not_active Expired
-
1984
- 1984-02-13 EP EP86202363A patent/EP0226261A3/de not_active Withdrawn
- 1984-02-13 EP EP84300905A patent/EP0119016B1/de not_active Expired
- 1984-02-13 DE DE8484300905T patent/DE3473947D1/de not_active Expired
- 1984-02-13 JP JP59024922A patent/JPS6057431A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0226261A2 (de) | 1987-06-24 |
CA1201207A (en) | 1986-02-25 |
JPS6057431A (ja) | 1985-04-03 |
US4612628A (en) | 1986-09-16 |
EP0119016A3 (en) | 1984-11-28 |
EP0119016A2 (de) | 1984-09-19 |
EP0226261A3 (de) | 1987-12-02 |
EP0119016B1 (de) | 1988-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |