ACPI_PTR_DIFF
AmlOffset = (UINT32) ACPI_PTR_DIFF (WalkState->Aml,
Length0 = ACPI_PTR_DIFF (EndTag, Operand0->Buffer.Pointer);
Length1 = ACPI_PTR_DIFF (EndTag, Operand1->Buffer.Pointer);
AmlLength = (UINT32) ACPI_PTR_DIFF (ParserState.PkgEnd, AmlStart);
ACPI_PTR_DIFF (ParserState->PkgEnd, ParserState->Aml);
ACPI_ERROR_ONLY(AmlOffset = (UINT32) ACPI_PTR_DIFF (WalkState->Aml,
(UINT32) ACPI_PTR_DIFF (MemRover, TablePtr);
(ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF (MemRover, TablePtr));
#define ACPI_TO_INTEGER(p) ACPI_PTR_DIFF (p, (void *) 0)
#define ACPI_OFFSET(d, f) ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) 0)