1 files changed, 32 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadDs.c b/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadDs.c
new file mode 100644
index 000000000..3cdada3ac
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadDs.c
@@ -0,0 +1,32 @@
+/** @file
+  AsmReadDs function
+
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+
+
+/**
+  Reads the current value of Data Segment Register (DS).
+
+  Reads and returns the current value of DS. This function is only available on
+  IA-32 and x64.
+
+  @return The current value of DS.
+
+**/
+UINT16
+EFIAPI
+AsmReadDs (
+  VOID
+  )
+{
+  __asm {
+    xor     eax, eax
+    mov     ax, ds
+  }
+}
+