Format of ACPI Root System Description Pointer structure

Offset  Size    Description     (Table M069)
 00h  8 BYTEs  signature "RSD PTR "
 08h   BYTE    checksum (entire structure, including this byte, must
         add up to zero)
 09h  6 BYTEs  OEM identifier
 0Fh   BYTE    reserved
 10h   DWORD   physical address of Root System Description Table (see #M071)

See Also: #M071