| Min version | XP |
|---|---|
| Max version | Vista SP2 |
| x86 offset offset:bitpos | Field Name |
| 0x0000 | uint16_t ControlWord |
| 0x0002 | uint16_t StatusWord |
| 0x0004 | uint16_t TagWord |
| 0x0006 | uint16_t ErrorOpcode |
| 0x0008 | unsigned long ErrorOffset |
| 0x000C | unsigned long ErrorSelector |
| 0x0010 | unsigned long DataOffset |
| 0x0014 | unsigned long DataSelector |
| 0x0018 | unsigned long MXCsr |
| 0x001C | unsigned long MXCsrMask |
| 0x0020 | uint8_t[128] RegisterArea |
| 0x00A0 | uint8_t[128] Reserved3 |
| 0x0120 | uint8_t[224] Reserved4 |
| 0x0200 | uint8_t[8] Align16Byte |