1 files changed, 40 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/FxRestore.c b/MdePkg/Library/BaseLib/Ia32/FxRestore.c
new file mode 100644
index 0000000000000..b64284aa8dc21
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ia32/FxRestore.c
@@ -0,0 +1,40 @@
+/** @file
+  AsmFxRestore function
+
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  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.
+
+**/
+
+
+#include "BaseLibInternals.h"
+
+
+/**
+  Restores the current floating point/SSE/SSE2 context from a buffer.
+
+  Restores the current floating point/SSE/SSE2 state from the buffer specified
+  by Buffer. Buffer must be aligned on a 16-byte boundary. This function is
+  only available on IA-32 and x64.
+
+  @param  Buffer  The pointer to a buffer to save the floating point/SSE/SSE2 context.
+
+**/
+VOID
+EFIAPI
+InternalX86FxRestore (
+  IN CONST IA32_FX_BUFFER *Buffer
+  )
+{
+  _asm {
+    mov     eax, Buffer
+    fxrstor [eax]
+  }
+}
+