func (a Address) Align(x int64) Address {
	return (a + Address(x) - 1) & ^(Address(x) - 1)
}
func (a Address) Align(x int64) Address {
	return (a + Address(x) - 1) & ^(Address(x) - 1)
}
func ( a Address ) Align ( x int64 ) Address { return ( a + Address ( x ) - 1 ) & ^ ( Address ( x ) - 1 ) }
// Align rounds a up to a multiple of x.
// x must be a power of 2.
Align rounds a up to a multiple of x . x must be a power of 2 .