| Description: | Returns the number of 1 bits in an integer. | ||
| Class: | Elemental function; Generic | ||
| Arguments: | I must be of type integer. | ||
| Results: | The result type is
the same as I. The result value is the number of 1 bits in the binary
representation of the integer I.
The model for the interpretation of an integer value as a sequence of bits is shown in Section D.3. | ||
Examples
If the value of I is B'0...00011010110', the value of POPCNT(I) is 5.