projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e1f414b6 | 1 | /** @file\r |
| 2 | AsmReadDr7 function\r | |
| 3 | \r | |
| bb817c56 HT |
4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
| 5 | This program and the accompanying materials\r | |
| e1f414b6 | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r | |
| 8 | http://opensource.org/licenses/bsd-license.php\r | |
| 9 | \r | |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 12 | \r | |
| 13 | **/\r | |
| 14 | \r | |
| 1efcc4ae | 15 | \r |
| f734a10a | 16 | \r |
| e1f414b6 | 17 | \r |
| 42eedea9 | 18 | /**\r |
| 19 | Reads the current value of Debug Register 7 (DR7).\r | |
| 20 | \r | |
| 21 | Reads and returns the current value of DR7. This function is only available\r | |
| 030cd1a2 | 22 | on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r |
| 23 | x64.\r | |
| 42eedea9 | 24 | \r |
| 25 | @return The value of Debug Register 7 (DR7).\r | |
| 26 | \r | |
| 27 | **/\r | |
| e1f414b6 | 28 | UINTN\r |
| 29 | EFIAPI\r | |
| 30 | AsmReadDr7 (\r | |
| 31 | VOID\r | |
| 32 | )\r | |
| 33 | {\r | |
| 34 | __asm {\r | |
| 35 | mov eax, dr7\r | |
| 36 | }\r | |
| 37 | }\r | |
| 38 | \r |