Method and apparatus for integer multiplication
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United States of America Patent
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Feb 3, 1998
Grant Date -
N/A
app pub date -
Mar 4, 1996
filing date -
Mar 4, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A binary multiplication method utilizing a combined table lookup and long multiplication to simplify the multiplication procedure, to improve the computational speed, and to save half of the memory space normally required. The method is executed by first moving the least significant bit (LSB) of the multiplier to another memory device before the start of the computation and then using the shortened multiplier in the multiplication operation since the multiplier is reduced by one bit, the memory space required for the multiplication table is reduced by half. The method does not require the use of a multiplying device and only needs small memory space. The manufacturing cost of a microprocessor can be reduced accordingly.
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