Function safe_add

example/bundle.js:535–539

(x, y)

 * to work around bugs in some JS interpreters.
 */
	function safe_add(x, y) 	{
		var lsw = (x & 0xFFFF) + (y & 0xFFFF);
		var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
		return (msw << 16) | (lsw & 0xFFFF);
	}

	/*
 * Bitwise rotate a 32-bit number to the left.