ACPI_SIG_RSDP
namelen = strlen(ACPI_SIG_RSDP);
if (memcmp(rsdp->Signature, ACPI_SIG_RSDP, namelen) == 0) {
Signature = ACPI_SIG_RSDP;
memcpy(rsdp.Signature, ACPI_SIG_RSDP, 8);
if (strncmp(ptr, ACPI_SIG_RSDP, strlen(ACPI_SIG_RSDP)) == 0 &&
#define ACPI_VALIDATE_RSDP_SIG(a) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
#define ACPI_MAKE_RSDP_SIG(dest) (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))