diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/WriteDr5.c')
-rw-r--r-- | MdePkg/Library/BaseLib/Ia32/WriteDr5.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/WriteDr5.c b/MdePkg/Library/BaseLib/Ia32/WriteDr5.c new file mode 100644 index 0000000..e2f72e3 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/WriteDr5.c @@ -0,0 +1,31 @@ +/** @file
+ AsmWriteDr5 function
+
+ 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.
+
+**/
+
+#if _MSC_EXTENSIONS
+
+UINTN
+EFIAPI
+AsmWriteDr5 (
+ IN UINTN Value
+ )
+{
+ _asm {
+ mov eax, Value
+ _emit 0x0f // mov dr5, eax
+ _emit 0x23
+ _emit 0xe8
+ }
+}
+
+#endif
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