//\r
\r
\r
+/**\r
+ Switches the endianess of a 64-bit integer.\r
+\r
+ This function swaps the bytes in a 64-bit unsigned value to switch the value\r
+ from little endian to big endian or vice versa. The byte swapped value is\r
+ returned.\r
+\r
+ @param Operand A 64-bit unsigned value.\r
+\r
+ @return The byte swaped Operand.\r
+\r
+**/\r
UINT64\r
EFIAPI\r
InternalMathSwapBytes64 (\r