| Min version | XP |
|---|---|
| Max version | Vista SP2 |
| x86 offset offset:bitpos | Field Name |
| 0x0000 | unsigned long ControlWord |
| 0x0004 | unsigned long StatusWord |
| 0x0008 | unsigned long TagWord |
| 0x000C | unsigned long ErrorOffset |
| 0x0010 | unsigned long ErrorSelector |
| 0x0014 | unsigned long DataOffset |
| 0x0018 | unsigned long DataSelector |
| 0x001C | uint8_t[80] RegisterArea |