发明名称 |
OVERFLOW DETECTION CALCULATOR AND METHOD OF OVERFLOW DETERMINATION |
摘要 |
A calculation method suitable for use in statistics calculations and a calculator using the method are disclosed. The method has the steps of storing a memory content from a memory in a first register of a calculation circuit; storing input data in a second register of the calculation circuit; performing a calculation on the contents of the first register and the second register, and storing the result of the calculation in the first register; determining that the calculation result stored in the first register has not overflowed; transferring the content of said first register to the memory and overwriting the memory content therewith, if the calculation result has not overflowed after the processes have been repeated a specified number of times. The calculator has an input section for inputting data; a calculation section for performing a specified calculation on the data; an overflow determination section for determining whether or not a calculation result that is the result of the calculation has overflowed; a calculation totalling section for determining whether or not the calculation has been performed a specified number of times; and a memory section for storing the calculation result obtained by the calculation means, if the calculation totalling means has determined that the calculation has been performed the specified number of times.
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申请公布号 |
US5197022(A) |
申请公布日期 |
1993.03.23 |
申请号 |
US19900574733 |
申请日期 |
1990.08.30 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
USHIKI, HIROSHI;IWASAKI, TETSUAKI;MASUDA, AKIRA |
分类号 |
G06F7/38;G06F7/50;G06F7/509;G06F17/10 |
主分类号 |
G06F7/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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