projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e1f414b6 | 1 | /** @file\r |
| 2 | IA-32/x64 GetInterruptState()\r | |
| 3 | \r | |
| 4 | Copyright (c) 2006, Intel Corporation<BR>\r | |
| 5 | All rights reserved. This program and the accompanying materials\r | |
| 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 | Module Name: x86GetInterruptState.c\r | |
| 14 | \r | |
| 15 | **/\r | |
| 16 | \r | |
| 17 | //\r | |
| 18 | // Include common header file for this module.\r | |
| 19 | //\r | |
| f734a10a A |
20 | #include <BaseLibInternals.h>\r |
| 21 | \r | |
| e1f414b6 | 22 | \r |
| 23 | /**\r | |
| 24 | Retrieves the current CPU interrupt state.\r | |
| 25 | \r | |
| 26 | Retrieves the current CPU interrupt state. Returns TRUE is interrupts are\r | |
| 27 | currently enabled. Otherwise returns FALSE.\r | |
| 28 | \r | |
| 29 | @retval TRUE CPU interrupts are enabled.\r | |
| 30 | @retval FALSE CPU interrupts are disabled.\r | |
| 31 | \r | |
| 32 | **/\r | |
| 33 | BOOLEAN\r | |
| 34 | EFIAPI\r | |
| 35 | GetInterruptState (\r | |
| 36 | VOID\r | |
| 37 | )\r | |
| 38 | {\r | |
| 39 | IA32_EFLAGS32 EFlags;\r | |
| 40 | \r | |
| 41 | EFlags.UintN = AsmReadEflags ();\r | |
| 42 | return (BOOLEAN)(EFlags.Bits.IF == 1);\r | |
| 43 | }\r | |
| 44 | \r | |
| 45 | \r |