Optimize the size of the Base Library for the MSFT 32-bit tool chains by taking advan...

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / WriteDr1.c

diff --git a/MdePkg/Library/BaseLib/Ia32/WriteDr1.c b/MdePkg/Library/BaseLib/Ia32/WriteDr1.c
new file mode 100644 (file)
index 0000000..74f4877
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ia32/WriteDr1.c
@@ -0,0 +1,29 @@
+/** @file\r
+  AsmWriteDr1 function\r
+\r
+  Copyright (c) 2006, Intel Corporation<BR>\r
+  All rights reserved. This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#if _MSC_EXTENSIONS\r
+\r
+UINTN\r
+EFIAPI\r
+AsmWriteDr1 (\r
+  IN UINTN Value\r
+  )\r
+{\r
+  _asm {\r
+    mov     eax, Value\r
+    mov     dr1, eax\r
+  }\r
+}\r
+\r
+#endif\r