BG29702A1 - Apparatus for figure multiplication represented in additional code - Google Patents
Apparatus for figure multiplication represented in additional codeInfo
- Publication number
- BG29702A1 BG29702A1 BG7736825A BG3682577A BG29702A1 BG 29702 A1 BG29702 A1 BG 29702A1 BG 7736825 A BG7736825 A BG 7736825A BG 3682577 A BG3682577 A BG 3682577A BG 29702 A1 BG29702 A1 BG 29702A1
- Authority
- BG
- Bulgaria
- Prior art keywords
- additional code
- multiplication represented
- multiplication
- represented
- code
- 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
- G06F7/52—Multiplying; Dividing
- G06F7/523—Multiplying only
- G06F7/533—Reduction of the number of iteration steps or stages, e.g. using the Booth algorithm, log-sum, odd-even
- G06F7/5334—Reduction of the number of iteration steps or stages, e.g. using the Booth algorithm, log-sum, odd-even by using multiple bit scanning, i.e. by decoding groups of successive multiplier bits in order to select an appropriate precalculated multiple of the multiplicand as a partial product
- G06F7/5336—Reduction of the number of iteration steps or stages, e.g. using the Booth algorithm, log-sum, odd-even by using multiple bit scanning, i.e. by decoding groups of successive multiplier bits in order to select an appropriate precalculated multiple of the multiplicand as a partial product overlapped, i.e. with successive bitgroups sharing one or more bits being recoded into signed digit representation, e.g. using the Modified Booth Algorithm
- G06F7/5338—Reduction of the number of iteration steps or stages, e.g. using the Booth algorithm, log-sum, odd-even by using multiple bit scanning, i.e. by decoding groups of successive multiplier bits in order to select an appropriate precalculated multiple of the multiplicand as a partial product overlapped, i.e. with successive bitgroups sharing one or more bits being recoded into signed digit representation, e.g. using the Modified Booth Algorithm each bitgroup having two new bits, e.g. 2nd order MBA
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762379678A SU651341A1 (ru) | 1976-07-07 | 1976-07-07 | Устройство дл умножени |
Publications (1)
Publication Number | Publication Date |
---|---|
BG29702A1 true BG29702A1 (en) | 1981-01-15 |
Family
ID=20668226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG7736825A BG29702A1 (en) | 1976-07-07 | 1977-07-07 | Apparatus for figure multiplication represented in additional code |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5317043A (xx) |
BG (1) | BG29702A1 (xx) |
DD (1) | DD131420A1 (xx) |
DE (1) | DE2730793A1 (xx) |
FR (1) | FR2357958A1 (xx) |
GB (1) | GB1540945A (xx) |
IN (1) | IN147436B (xx) |
PL (1) | PL108592B1 (xx) |
RO (1) | RO80742A (xx) |
SU (1) | SU651341A1 (xx) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4334284A (en) * | 1979-12-31 | 1982-06-08 | Sperry Corporation | Multiplier decoding using parallel MQ register |
JPS57141753A (en) * | 1981-02-25 | 1982-09-02 | Nec Corp | Multiplication circuit |
-
1976
- 1976-07-07 SU SU762379678A patent/SU651341A1/ru active
-
1977
- 1977-07-06 IN IN1026/CAL/77A patent/IN147436B/en unknown
- 1977-07-06 DD DD19992377A patent/DD131420A1/xx unknown
- 1977-07-07 FR FR7720935A patent/FR2357958A1/fr active Granted
- 1977-07-07 GB GB2860577A patent/GB1540945A/en not_active Expired
- 1977-07-07 JP JP8049277A patent/JPS5317043A/ja active Pending
- 1977-07-07 BG BG7736825A patent/BG29702A1/xx unknown
- 1977-07-07 DE DE19772730793 patent/DE2730793A1/de not_active Ceased
- 1977-07-07 PL PL19944977A patent/PL108592B1/pl not_active IP Right Cessation
- 1977-07-07 RO RO7790966A patent/RO80742A/ro unknown
Also Published As
Publication number | Publication date |
---|---|
RO80742B (ro) | 1983-05-30 |
DD131420A1 (de) | 1978-06-21 |
JPS5317043A (en) | 1978-02-16 |
RO80742A (ro) | 1983-06-01 |
DE2730793A1 (de) | 1978-01-19 |
PL199449A1 (pl) | 1978-03-28 |
IN147436B (xx) | 1980-02-23 |
GB1540945A (en) | 1979-02-21 |
FR2357958A1 (fr) | 1978-02-03 |
PL108592B1 (en) | 1980-04-30 |
FR2357958B1 (xx) | 1980-03-07 |
SU651341A1 (ru) | 1979-03-05 |
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