ACPI_LODWORD
PciId->Device = ACPI_HIWORD (ACPI_LODWORD (PciValue));
PciId->Function = ACPI_LOWORD (ACPI_LODWORD (PciValue));
PciId->Device = ACPI_HIWORD (ACPI_LODWORD (ReturnValue));
PciId->Function = ACPI_LOWORD (ACPI_LODWORD (ReturnValue));
#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i)