Search results
Results from the WOW.Com Content Network
Logical right shift differs from arithmetic right shift. Thus, many languages have different operators for them. For example, in Java and JavaScript, the logical right shift operator is >>>, but the arithmetic right shift operator is >>. (Java has only one left shift operator (<<), because left shift via logic and arithmetic have the same effect.)
Logical shift: a logic zero is shifted into the operand. This is used to shift unsigned integers. This is used to shift unsigned integers. Rotate : the operand is treated as a circular buffer of bits in which its least and most significant bits are effectively adjacent.
An arithmetic shift is usually equivalent to multiplying the number by a positive or a negative integral power of the radix, except for the effect of any rounding; compare the logical shift with the arithmetic shift, especially in the case of floating-point representation. An important word in the FS 1073C definition is "usually".
However, logical operators treat each operand as having only one value, either true or false, rather than treating each bit of an operand as an independent value. Logical operators consider zero false and any nonzero value true. Another difference is that logical operators perform short-circuit evaluation.
In Pascal, as well as in all its dialects (such as Object Pascal and Standard Pascal), the logical left and right shift operators are "shl" and "shr", respectively. Even for signed integers, shr behaves like a logical shift, and does not copy the sign bit. The number of places to shift is given as the second argument.
Still, the Heat are better with Butler on the court (Miami outscores opponents by 4.3 points per 100 possessions with him on the court vs. being outscored by less than a point with him on the bench.)
The very fastest shifters are implemented as full crossbars, in a manner similar to the 4-bit shifter depicted above, only larger. These incur the least delay, with the output always a single gate delay behind the input to be shifted (after allowing the small time needed for the shift count decoder to settle; this penalty, however, is only incurred when the shift count changes).
The president of a Michigan-based manufacturer was stabbed by one of the company's employees during a staff meeting, police said. Nathan Joseph Mahoney, 31, has been charged with assault with ...