diff options
| author | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-07-21 08:47:38 +0000 |
|---|---|---|
| committer | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-07-21 08:47:38 +0000 |
| commit | 3f566587aea64bb986866c7f69a6b82891bf59db (patch) | |
| tree | 406fa713c2baaa46f9c357f49bcef7d710e7f044 /MdePkg/Library/BaseLib/x86GetInterruptState.c | |
| parent | 31a9215c3223d3818d1709f39d06774e18df103f (diff) | |
| download | edk2-platforms-3f566587aea64bb986866c7f69a6b82891bf59db.tar.xz | |
1. Updated function headers in all assembly files.
2. Split x86LowLevel.c into a bunch of C files to make images linked with BaseLib smaller.
3. Fixed a few minor bugs.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1066 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/x86GetInterruptState.c')
| -rw-r--r-- | MdePkg/Library/BaseLib/x86GetInterruptState.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/x86GetInterruptState.c b/MdePkg/Library/BaseLib/x86GetInterruptState.c new file mode 100644 index 0000000000..2e06efbc83 --- /dev/null +++ b/MdePkg/Library/BaseLib/x86GetInterruptState.c @@ -0,0 +1,39 @@ +/** @file
+ IA-32/x64 GetInterruptState()
+
+ Copyright (c) 2006, Intel Corporation<BR>
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ Module Name: x86GetInterruptState.c
+
+**/
+
+/**
+ Retrieves the current CPU interrupt state.
+
+ Retrieves the current CPU interrupt state. Returns TRUE is interrupts are
+ currently enabled. Otherwise returns FALSE.
+
+ @retval TRUE CPU interrupts are enabled.
+ @retval FALSE CPU interrupts are disabled.
+
+**/
+BOOLEAN
+EFIAPI
+GetInterruptState (
+ VOID
+ )
+{
+ IA32_EFLAGS32 EFlags;
+
+ EFlags.UintN = AsmReadEflags ();
+ return (BOOLEAN)(EFlags.Bits.IF == 1);
+}
+
+
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