\r
/**\r
Returns the value of the highest bit set in a 32-bit value. Equivalent to\r
- 1 << HighBitSet32(x).\r
+ 1 << log2(x).\r
\r
This function computes the value of the highest bit set in the 32-bit value\r
specified by Operand. If Operand is zero, then zero is returned.\r