| 术语 | arithmetic shift |
| 释义 | arithmetic shift 算术移位 A shift, applied to the representation of a number in a fixed radix numeration system and in a fixed-point representation system, in which onlythe characters representing the fixedpoint part of the number are moved. An arithmetic shift is usually equivalent to multiplying the number by a positive or a negative integral power of the radix, except forthe effect of any rounding. Compare the logical shift with the arithmetic shift,especially in the case of floating-point representation. 对固定基数制与定点记数制所表示的数进行的移位。这种移位操作只对数的定点部分进 行移动。算术移位等价于将该数乘以基数的正或负的整数次方,但当受舍入影响时除外。试 比较逻辑移位和算术移位,特别是在浮点表示的情况下。 |
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