ACPI_MAX_PTR
scope->parse_scope.arg_end = ACPI_TO_POINTER(ACPI_MAX_PTR);
size = ACPI_MIN(size, ACPI_PTR_DIFF(ACPI_MAX_PTR, string));
#define ACPI_ROOT_OBJECT ((acpi_handle) ACPI_TO_POINTER (ACPI_MAX_PTR))