DWORD rol32(DWORD x, UINT n){
		return( ((x) << (n)) | ((x) >> (32-(n))) );
	};

	DWORD ror32(DWORD x, UINT n){
		return( ((x) >> (n)) | ((x) << (32-(n))) );
	};

	BYTE rol8(BYTE x, UINT n){
		return( ((x) << (n)) | ((x) >> (8-(n))) );
	};
	BYTE ror8(BYTE x,UINT n){
		return( ((x) >> (n)) | ((x) << (8-(n))) );
	};