JPS5317043A - Device for multiplying supplementary code number - Google Patents
Device for multiplying supplementary code numberInfo
- Publication number
- JPS5317043A JPS5317043A JP8049277A JP8049277A JPS5317043A JP S5317043 A JPS5317043 A JP S5317043A JP 8049277 A JP8049277 A JP 8049277A JP 8049277 A JP8049277 A JP 8049277A JP S5317043 A JPS5317043 A JP S5317043A
- Authority
- JP
- Japan
- Prior art keywords
- multiplying
- code number
- supplementary code
- supplementary
- multiplying supplementary
- 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.)
- Pending
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 |
---|---|
JPS5317043A true JPS5317043A (en) | 1978-02-16 |
Family
ID=20668226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8049277A Pending JPS5317043A (en) | 1976-07-07 | 1977-07-07 | Device for multiplying supplementary code number |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5317043A (ru) |
BG (1) | BG29702A1 (ru) |
DD (1) | DD131420A1 (ru) |
DE (1) | DE2730793A1 (ru) |
FR (1) | FR2357958A1 (ru) |
GB (1) | GB1540945A (ru) |
IN (1) | IN147436B (ru) |
PL (1) | PL108592B1 (ru) |
RO (1) | RO80742A (ru) |
SU (1) | SU651341A1 (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56145427A (en) * | 1979-12-31 | 1981-11-12 | Sperry Rand Corp | Multiplier decoding signal using parallel multiplication register |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56145427A (en) * | 1979-12-31 | 1981-11-12 | Sperry Rand Corp | Multiplier decoding signal using parallel multiplication register |
JPH0139131B2 (ru) * | 1979-12-31 | 1989-08-18 | Unisys Corp |
Also Published As
Publication number | Publication date |
---|---|
RO80742B (ro) | 1983-05-30 |
DD131420A1 (de) | 1978-06-21 |
RO80742A (ro) | 1983-06-01 |
DE2730793A1 (de) | 1978-01-19 |
PL199449A1 (pl) | 1978-03-28 |
IN147436B (ru) | 1980-02-23 |
GB1540945A (en) | 1979-02-21 |
FR2357958A1 (fr) | 1978-02-03 |
PL108592B1 (en) | 1980-04-30 |
FR2357958B1 (ru) | 1980-03-07 |
SU651341A1 (ru) | 1979-03-05 |
BG29702A1 (en) | 1981-01-15 |
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